WO2007131049A2 - Wireless communications connection device - Google Patents
Wireless communications connection device Download PDFInfo
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- WO2007131049A2 WO2007131049A2 PCT/US2007/068054 US2007068054W WO2007131049A2 WO 2007131049 A2 WO2007131049 A2 WO 2007131049A2 US 2007068054 W US2007068054 W US 2007068054W WO 2007131049 A2 WO2007131049 A2 WO 2007131049A2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/10—Office automation; Time management
- G06Q10/109—Time management, e.g. calendars, reminders, meetings or time accounting
Definitions
- the present invention is directed to a wireless communications system. More particularly, the present invention is directed to a wireless communications connection device for conferencing and content sharing among a number of participants in a mobile environment.
- Conference calls are an essential part of business worldwide. Many companies operate on a national or multinational level. Where operations must be coordinated, then the need for conference calls between remote offices becomes obvious.
- conference phone typically one or more local parties to a conference call gather in a conference room to place a call to the remote party.
- a conference phone is placed in the center of a table surrounded by conference participants.
- a conference phone also may be utilized at the remote location to permit a plurality of remote parties to participate in the conference call.
- Such conference phones are typically provided with microphones/speakers on two or more sides and a volume control.
- Conference phones tend to operate in only one direction at a time because of feedback. In most cases, if a conference phone is receiving a voice signal from a remote party, it disables a local microphone. If a speaker should pause or finish speaking, then the microphones on both ends may be activated. In this case, the first side to begin speaking would gain control of the channel.
- conference phones work relatively well, they suffer from a number of deficiencies. In addition to the difficulty caused by both sides speaking at the same time, not all participants around a conference table can hear or be heard, especially if such participant is not directly in front of the speaker.
- U.S. Pat. No. 6,801,611 to Guccione et al. describes a hand-held conferencing device into which participants may plug headsets.
- a remote party may be joined to the conference call via a cellular telephone or other personal communications device.
- Non-call conferencing conferencing features that are more convenient and that allow wireless communications between conferencing participants, both during a conference call and in the absence of a conference call.
- Applicant developed a technology to address such a need as described in Applicant's co-pending United States patent application for "Mobile Conferencing and Audio Sharing Technology," Serial No. 11/208,147, filed on August 19, 2005, which is incorporated herein by reference in its entirety.
- wireless conferencing communications extends well beyond the context and framework of traditional wired and cellular conference calls and wireless non-call conferencing.
- a wireless communications device that not only allows local participants to wirelessly participate in conference calls and to wirelessly conference with other local participants in a non- call setting, but also permits participants to wirelessly share content (such as audio and/or video content, including stereo music and the like), and to wirelessly conference with any audio device and/or application that supports the appropriate wireless communications protocol, such as Bluetooth (“BT”), Ultra-Wideband (“UWB”), or future technologies.
- BT Bluetooth
- UWB Ultra-Wideband
- a need exists for a wireless communications device that permits local participants to wirelessly share audio and/or video content while awaiting a conference call and, when the conference call is initiated, or when a non-call conference is desired, to seamlessly switch from wireless content sharing to wireless conference calling or wireless non-call conferencing. Once the wireless conference call and/or wireless non-call conference is complete, the device would permit local participants to return to wireless content sharing.
- Such a wireless communications device also would allow multiple local participants, through the use of a personal computer or a suitable personal communications device, for example, to wirelessly conference on "calls” made using voice-over-IP (“VOIP”) technology (such as those services currently offered by Vonage, Skype, and the like), and to wirelessly conference on audio and/or video "chats" using webcams (such as through the MSN's Messenger service and AOL's Instant Messenger service).
- VOIP voice-over-IP
- webcams such as through the MSN's Messenger service and AOL's Instant Messenger service.
- such a device would permit conferencing among local participants across a large local area through the use of repeaters.
- Such a device could be used, for example, by a security team in an office building or sports arena to communicate via wireless conferencing, replacing traditional one-way "walkie talkie"-style communications devices.
- the wireless communications connection device of the present invention satisfies the foregoing needs.
- a method and apparatus for wireless conferencing between a plurality of local participants, for wirelessly conferencing between a plurality of local participants and a remote participant, and for wirelessly sharing audio and/or video content between the plurality of local participants.
- the method includes the steps of providing an audio mixer that receives an audio input from each of at least three audio interfaces, mixes, cleans, and amplifies and/or de-amplifies the audio signal from the audio inputs and provides an equalized audio output to each of the at least three audio interfaces; providing a first local wireless interface between a first audio interface of the at least three audio interfaces and a wireless headset of a first local participant; providing a second local wireless interface between a second audio interface of the at least three audio interfaces and a wireless headset of a second local participant; and, providing a third wireless interface between a third audio interface of the at least three audio interfaces and a remote communications means for communicating with a remote participant, wherein the communication paths to the first local participant, second local participant and the remote participant are all discrete, so as to permit simultaneous two-way (incoming and outgoing) communications between each participant during wireless conferencing between the local participants and during wireless conferencing between the local participants and the remote participant, and so as to permit simultaneous one-way communications between an audio and/or video content source and
- the method includes the steps of providing an audio mixer that receives an audio input from each of at least four audio interfaces, mixes, cleans, and amplifies and/or de-amplifies the audio signal from the audio inputs and provides an equalized audio output to each of the at least four audio interfaces; providing a first local wireless interface between a first audio interface of the at least four audio interfaces and a wireless headset of a first local participant; providing a second local wireless interface between a second audio interface of the at least four audio interfaces and a wireless headset of a second local participant; providing a third wireless interface between a third audio interface of the at least four audio interfaces and a remote communications means for communicating with a remote participant; and providing a fourth wireless interface between a fourth audio interface of the at least four audio interfaces and an audio and/or video content source, wherein the communication paths to the first local participant, second local participant and the remote participant are all discrete, so as to permit simultaneous two-way communications (incoming and outgoing) between each participant during wireless conferencing between the
- the method in respect to wireless sharing of audio and/or video content between the local participants includes use of the otherwise two- way communications paths in a one-way configuration to permit stereo audio (separated into left and right audio channels) to be transmitted to the local participants, with one audio channel transmitted over the standard outgoing path and the other audio channel transmitted over the standard incoming path, which has been reversed to a secondary outgoing path in this configuration.
- the method further includes means to switch between wireless conferencing between the local participants, wireless conferencing between the local participants and the remote participant, and wireless sharing of audio and/or video content between the local participants.
- FIG. 1 is a block diagram of the wireless communications connection device of the present invention.
- FIG. 1 is a block diagram of the wireless communications connection device in the preferred embodiment of the present invention. It will be appreciated, however, that the device shown in Fig. 1 and as described herein may be disposed within various components without departing from the scope of this disclosure.
- the wireless communications device in the preferred embodiment of the present invention may be disposed within a free standing, dedicated wireless communications module, within a cellular phone, within a personal digital assistant, within an MP3 player (or similar audio playback device), within a personal computer, or within any number of similar electronic devices with audio capabilities.
- the wireless communications device of the present invention is comprised of a mixer 1 interactively coupled with a plurality of wireless controllers 2, 3 and 4.
- the number of wireless controllers will vary depending upon the particular wireless communications protocol used (Bluetooth, Ultra- Wideband, etc.) and the maximum number of local participants intended to be supported by the device. In the preferred embodiment of the present invention, three wireless controllers are utilized.
- Mixer 1 in the preferred embodiment of the present invention comprises a field-programmable gate array (“FPGA")- As well known to those skilled in the art, an FPGA is a semiconductor device containing programmable logic components and programmable interconnects. Mixer 1 is further interactively coupled with a programmable read only memory (“PROM”) module 5. When the wireless communications connection device is powered on, mixer 1 interacts with PROM module 5 to receive and load the programming required for the operation of mixer 1.
- FPGA field-programmable gate array
- PROM programmable read only memory
- Mixer 1 is programmed as a digital signal processor. That is, mixer 1 is programmed to receive digital audio input signals from the wireless controllers 2, 3 and 4 through audio interfaces 21, 31 and 41, respectively, to digitally mix, clean, and amplify and/or de-amplify the audio input signals, and to transmit the mixed, cleaned, and equalized digital audio output to the wireless controllers 2, 3 and 4 through audio interfaces 21, 31 and 41, respectively.
- the digital audio communications between mixer 1 and wireless controllers 2, 3 and 4 use multi-slot pulse-code modulation ("PCM”) streams as are well known in the prior art.
- PCM multi-slot pulse-code modulation
- Wireless controllers 2, 3 and 4 in the preferred embodiment of the present invention are Bluetooth radio devices each having a local wireless interface 22, 32, and 42, respectively.
- Local wireless interfaces 22, 32 and 42 further comprise RF amplifiers 23, 33 and 43, respectively, as well as antennas 24, 34 and 44, respectively, for transmitting and receiving wireless communications.
- antennas 24, 34 and 44 may be replaced by the antenna of such electronic audio device.
- RF amplifiers are of the Class 1 variety, permitting wireless communications within an approximate range of 100 meters.
- range of the system may be extended to greater distances by using a system of repeaters, and/or by using more powerful amplifiers (where permitted).
- Local wireless interfaces 22, 32 and 42 are designed to pairingly connect wireless controllers 2, 3 and 4 with other electronic audio devices with Bluetooth capabilities, such as headsets, cellular phones, computers, MP3 players and the like.
- the wireless controllers 2, 3 and 4 may operate under any appropriate communications protocol, including Bluetooth, Ultra- Wideband, and related future developed protocols.
- wireless controllers 2, 3 and 4 are interactively coupled with flash memory modules 25, 35 and 36, respectively.
- wireless controllers 2, 3 and 4 interact with flash memory modules 25, 35 and 36, respectively, to receive and load the programming required for the operation of wireless controllers 2, 3 and 4.
- the wireless communications connection device of the present invention acts as the base of at least one local wireless network (a "piconet").
- a piconet Each wireless controller 2, 3 and 4 is capable of establishing an independent piconet to communicate with a plurality of wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) such as cellular phones, headsets, computers, MP3 players and the like, under an appropriate communication protocol (e.g., Bluetooth, Ultra-Wideband, any other future protocol which can support communication with two audio channels, etc.).
- a wireless audio communications devices such as cellular phones, headsets, computers, MP3 players and the like
- an appropriate communication protocol e.g., Bluetooth, Ultra-Wideband, any other future protocol which can support communication with two audio channels, etc.
- each wireless controller 2, 3 and 4 may function as a master and the plurality of wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) may function as slaves. It should be understood that while only nine slave devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) are shown in FIG. 1, the wireless communications connection device of the present invention is scalable to support any number of slave devices, the limiting factor being the communication protocol. For example, as further discussed below, current Bluetooth technology can support up to three slaves using synchronous connection-oriented links (“SCOs") and up to seven slaves using asynchronous connectionless links (“ACLs").
- SCOs synchronous connection-oriented links
- ACLs asynchronous connectionless links
- each wireless controller 2, 3 and 4 can support up to three slave devices.
- the wireless controllers 2, 3 and 4 may use channels within a discrete frequency spectrum for communications within the piconet.
- the exact frequency spectrum and channels are dependent on the particular communications protocol utilized. For example, when using the Bluetooth protocol, as in the preferred embodiment of the present invention, the frequency range is from 2400 to 2483.5 MHz, with 79 discrete channels available between 2402 to 2480 MHz.
- a channel (or "communication path") within a piconet means a duplex channel. As such, a channel includes both inbound and outbound paths.
- the wireless controllers 2, 3 and 4 may operate within the piconet using a frequency hopping format as is standard in the Bluetooth communications protocol. Frequency hopping may occur pseudorandomly at a rate of 1600 channels per second among a predetermined channel set (e.g., 23 RF channels, 79 RF channels, etc.).
- the time slot on each channel may be 625 microseconds long, and packets within the piconet may be up to five slots long. Data within a packet may be up to 2,745 bits in length.
- the information transfer rate within the piconet between the wireless controllers 2, 3 and 4 and the wireless audio communications devices may be 1 megabit per second ("Mbps") using Bluetooth 1.0 or 1.1 , or up to 3 Mbps using Bluetooth 2.0.
- the bandwidth may be further increased by the use of an alternate communication technology, such as Ultra-Wideband.
- communications between the master wireless controllers 2, 3 and 4 and the slave wireless audio communications devices may use an SCO link or ACL link, or both, under the Bluetooth communications protocol in the preferred embodiment of the present invention.
- Each wireless controller 2, 3 and 4 can support up to three SCO links and seven ACL links.
- SCO links Using SCO links, communications between the master and the slaves may be on reserved channels.
- SCO links provide a circuit-oriented service with constant bandwidth based on a fixed and periodic allocation of slots.
- SCO links are used to carry voice communications between the master wireless controllers 2, 3 and 4 and the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48).
- ACL links provides a packet-oriented service with the bandwidth of the piconet divided by the master among the slaves using a polling mechanism.
- Outbound information i.e., from the master to the slaves
- ACL slaves can only transmit when requested by the master. Since the slave units all transmit one-at-a-time under control of the master, the channels between the master and respective slaves are all different.
- ACL links are used for the transmission of shared content to the slaves, as further discussed below.
- Set up of a piconet channel for a slave unit may be accomplished in any of a number of different ways. Under one embodiment, using the Bluetooth protocol in the preferred embodiment of the present invention, set up between master wireless controllers 2, 3 and 4 and the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) may occur through a known process referred to as "pairing.”
- Pairing may be accomplished for a first slave wireless audio communications device 26, by activating a pairing button on the device 26 while at the same time activating a pairing button 6 on the wireless communications connection device of the present invention.
- the wireless communications connection device transmits a piconet polling packet, including an identifier of the wireless communications connection device, to any nearby devices. Since the pairing button on the device 26 is activated, the device 26 may transmit a response identifying the type of device 26 involved.
- the wireless communications connection device may receive and analyze the packet to identify the device 26.
- the wireless communications connection device may assign a unique address to the device 26 consistent with the type of device involved.
- the pairing process may be repeated with each of the other slave wireless audio communications devices 27, 28, 36, 37, 38, 46, 47 and 48.
- at least one such slave wireless audio communications device is a cellular phone, and at least one such slave wireless audio communications devices is a wireless headset.
- the wireless communications connection device is disposed and integrated within a cellular phone, then the cellular phone may act as the master and, in such as case, at least one wireless headset is paired to the master cellular phone as a slave.
- the master wireless controllers 2, 3 and 4 establish simultaneous SCO and ACL links with each slave wireless audio communications device (26, 27, 28, 36, 37, 38, 46, 47 and 48).
- non-call conferencing may occur between local participants using any paired slave wireless audio communications devices that permit two-way communications, such as a wireless headset (e.g., the Jabra Model BT800), a cellular phone (using the cellular phone's speaker and microphone), or even a computer (using the computer's built-in speaker and microphone).
- a wireless headset e.g., the Jabra Model BT800
- a cellular phone using the cellular phone's speaker and microphone
- a computer using the computer's built-in speaker and microphone
- a conference call between local participants and a remote participant may be established by initiating or receiving a call on one of the paired slave wireless audio communications devices that are capable of such (such as using a paired cellular phone to make cellular phone calls, or using a computer or similar device to contact a remote participant using VOIP (such as by using Skype, MSN Messenger, AOL Instant Messenger or a similar service).
- a "call" to a remote participant can include a number of remote communications means for establishing two-way audio communications with a remote participant.
- wireless controllers 2, 3 and 4 may open communications channels between audio interfaces 21, 31 and 41 of wireless controllers 2, 3 and 4, respectively, and audio interface 11 of mixer 1 to permit slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) to communicate with mixer 1.
- the audio signals from the slave wireless audio communications devices are mixed, cleaned, amplified and/or de-amplified, and an equalized output provided to each slave wireless audio communications device (26, 27, 28, 36, 37, 38, 46, 47 and 48).
- mixing means summing the audio input from the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48), dividing the sum by the number of slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48), and providing an equalized audio output to each of the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48).
- the wireless communications connection device of the present invention operates in a full duplex mode with respect to the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48).
- each slave wireless audio communications device (26, 27, 28, 36, 37, 38, 46, 47 and 48) communicates with the mixer 1 over an independent communication channel that is not shared with any other slave wireless audio communications device (26, 27, 28, 36, 37, 38, 46, 47 and 48).
- each slave wireless audio communications device (26, 27, 28, 36, 37, 38, 46, 47 and 48) communicates with the wireless controllers 2, 3 and 4 using a Bluetooth SCO link in the preferred embodiment to maximize the quality of the voice communications.
- the wireless communications connection device of the preferred embodiment is enhanced with the ability to share content, such as stereo music, in the absence of a conference call or wireless non-call conferencing.
- at least one of the slave wireless audio communications devices is an audio and/or video content source (such as a computer, MP3 player, or cellular phone) with the ability to transmit (by streaming from an external source and/or from stored audio and/or video files) audio and/or video content.
- At least one of the slave wireless audio communications devices is a headset compatible with the Advanced Audio Distribution Protocol ("A2DP"), and the wireless controllers 2, 3 and 4 are programmed to be A2DP- compliant.
- A2DP Advanced Audio Distribution Protocol
- A2DP is a Bluetooth protocol that encapsulates the "Generic Audio/Video Distribution Profile," for setting up a streaming audio or video channel, and the "Audio/Video Distribution Transport” protocol, for controlling streaming digital content over a Bluetooth connection.
- A2DP defines the protocols and procedures that realize distribution of stereo audio content using ACL links.
- the slave wireless audio communications devices communicate with the master wireless controllers 2, 3 and 4 using Bluetooth SCO links for voice communications in a conference call or wireless non-call conferencing configuration.
- the slave wireless audio communications devices have simultaneously established links with the master wireless controllers 2, 3 and 4 using Bluetooth ACL links.
- the ACL links may be utilized to stream audio and/or video content from the audio and/or video content source to the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48), while the SCO links remain available to use should a conference call or wireless non-call conferencing situation arise.
- the duplex channel between the master wireless controller and the slave A2DP- compatitible headset may predominately be used as a one-way channel. That is, the otherwise two-way communications path permits stereo audio (separated into left and right audio channels) to be transmitted to slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48), with one audio channel transmitted over the standard outgoing path and the other audio channel transmitted over the standard incoming path, which has been reversed to a secondary outgoing path in this configuration.
- the wireless communications connection device includes a means to switch between wireless conferencing between the local participants, wireless conferencing between the local participants and the remote participant, and wireless sharing of audio and/or video content between the local participants.
- This may include a switch or button to transfer the device between "voice conference mode” (SCO links) and "content sharing mode” (ACL links).
- SCO links voice conference mode
- ACL links content sharing mode
- the transfer from content sharing mode to voice conference mode may be automatically triggered by the making or receiving of a call to a remote party using one of the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48).
- the wireless communications connection device of the present invention pairs with a plurality of A2DP-compatible headset devices.
- the wireless communications connection device of the present invention pairs with a cellular phone for communicating with a remote participant.
- the wireless communications connection device of the present invention pairs with an audio/video content source, such as an iPod or notebook computer running Apple Computer's iTunes.
- all local participants using paired A2DP-compatible headsets may listen to stereo music and/or watch video streaming from the audio source using the ACL links.
- the local participants listening to stereo music may be interrupted to accept or reject the call. If the call is accepted, or if the wireless communications connection device is simply placed into a "voice conference mode," the local participants can conference amongst themselves (wireless non-call conferencing) and optionally participate in a wireless conference call with the remote party through the cellular phone using the SCO links. Local participants may return to content sharing over the ACL links once voice conferencing is complete.
- the wireless communications connection device of the present invention pairs with a plurality of A2DP-compatible headset devices.
- the wireless communications connection device of the present invention pairs with a cellular phone with built-in content streaming technology.
- the audio and/or video content source has been converged into a single device.
- all local participants using paired A2DP-compatible headsets may listen to stereo music and/or watch video streaming from the cellular phone using the ACL links.
- the local participants listening to stereo music may be interrupted to accept or reject the call. If the call is accepted, or if the wireless communications connection device is simply placed into a "voice conference mode," the local participants can conference amongst themselves (wireless non-call conferencing) and optionally participate in a wireless conference call with the remote party through the cellular phone using the SCO links. Local participants may return to content sharing over the ACL links once voice conferencing is complete.
Abstract
A method and apparatus is provided for setting up a wireless conference call, wireless non-call conference, and sharing audio and/or video content. The method includes the steps of providing an audio mixer that receives an audio input from each of at least three audio interfaces, mixes, cleans, and amplifies and/or de-amplifies the audio signal from the audio inputs and provides an equalized audio output to each of the at least three audio interfaces; providing a first local wireless interface between a first audio interface of the at least three audio interfaces and a wireless headset of a first local participant; providing a second local wireless interface between a second audio interface of the at least three audio interfaces and a wireless headset of a second local participant; and, providing a third wireless interface between a third audio interface of the at least three audio interfaces and a remote communications means for communicating with a remote participant, wherein the communication paths to the first local participant, second local participant and the remote participant are all discrete, so as to permit simultaneous two-way (incoming and outgoing) communications between each participant during wireless conferencing between the local participants and during wireless conferencing between the local participants and the remote participant, and so as to permit simultaneous one-way communications between an audio and/or video content source and each local participant during wireless sharing of audio and/or video content between the local participants.
Description
TITLE OF THE INVENTION WIRELESS COMMUNICATIONS CONNECTION DEVICE
BACKGROUND OF THE INVENTION
The present invention is directed to a wireless communications system. More particularly, the present invention is directed to a wireless communications connection device for conferencing and content sharing among a number of participants in a mobile environment.
Conference calls are an essential part of business worldwide. Many companies operate on a national or multinational level. Where operations must be coordinated, then the need for conference calls between remote offices becomes obvious.
Typically one or more local parties to a conference call gather in a conference room to place a call to the remote party. A conference phone is placed in the center of a table surrounded by conference participants. A conference phone also may be utilized at the remote location to permit a plurality of remote parties to participate in the conference call. Such conference phones are typically provided with microphones/speakers on two or more sides and a volume control.
Conference phones tend to operate in only one direction at a time because of feedback. In most cases, if a conference phone is receiving a voice signal from a remote party, it disables a local microphone. If a speaker should pause or finish speaking, then the microphones on both ends may be activated. In this case, the first side to begin speaking would gain control of the channel.
While conference phones work relatively well, they suffer from a number of deficiencies. In addition to the difficulty caused by both sides speaking at the same time, not all participants around a conference table can hear or be heard, especially if such participant is not directly in front of the speaker.
In order to solve the problems associated with prior art conference calling, U.S. Pat. No. 6,801,611 to Guccione et al. describes a hand-held conferencing device into which participants may plug headsets. A remote party may be joined to the conference call via a cellular telephone or other personal communications device.
While Guccione et al. is an improvement over prior devices, it still failed to offer conference call participants the needed mobility. For example, conference calls may often be required at inconvenient times and in inconvenient places. The need to
carry an extra hand-held conferencing device and the requirement that users of the device be tethered to it using wired headsets is inconvenient and unnecessary.
Accordingly, there exists a need for conferencing features that are more convenient and that allow wireless communications between conferencing participants, both during a conference call and in the absence of a conference call ("non-call conferencing"). Applicant developed a technology to address such a need as described in Applicant's co-pending United States patent application for "Mobile Conferencing and Audio Sharing Technology," Serial No. 11/208,147, filed on August 19, 2005, which is incorporated herein by reference in its entirety.
However, the need for wireless conferencing communications extends well beyond the context and framework of traditional wired and cellular conference calls and wireless non-call conferencing. For example, the need exists for a wireless communications device that not only allows local participants to wirelessly participate in conference calls and to wirelessly conference with other local participants in a non- call setting, but also permits participants to wirelessly share content (such as audio and/or video content, including stereo music and the like), and to wirelessly conference with any audio device and/or application that supports the appropriate wireless communications protocol, such as Bluetooth ("BT"), Ultra-Wideband ("UWB"), or future technologies.
Similarly, a need exists for a wireless communications device that permits local participants to wirelessly share audio and/or video content while awaiting a conference call and, when the conference call is initiated, or when a non-call conference is desired, to seamlessly switch from wireless content sharing to wireless conference calling or wireless non-call conferencing. Once the wireless conference call and/or wireless non-call conference is complete, the device would permit local participants to return to wireless content sharing.
Such a wireless communications device also would allow multiple local participants, through the use of a personal computer or a suitable personal communications device, for example, to wirelessly conference on "calls" made using voice-over-IP ("VOIP") technology (such as those services currently offered by Vonage, Skype, and the like), and to wirelessly conference on audio and/or video "chats" using webcams (such as through the MSN's Messenger service and AOL's Instant Messenger service). The use of such a device in such applications would eliminate the troublesome issues of feedback (often created in such situations when a
microphone is located in close proximity to a speaker) and clipping and distortion (often caused when many local participants attempt to speak at the same time or speak loudly in an attempt to be heard over other local participants).
Further, taking the wireless conferencing communications concept a step further, such a device would permit conferencing among local participants across a large local area through the use of repeaters. Such a device could be used, for example, by a security team in an office building or sports arena to communicate via wireless conferencing, replacing traditional one-way "walkie talkie"-style communications devices.
Accordingly, a need exists for a wireless communications device that satisfies all of the foregoing needs. The wireless communications connection device of the present invention satisfies the foregoing needs.
BRIEF SUMMARY OF THE INVENTION
A method and apparatus is provided for wireless conferencing between a plurality of local participants, for wirelessly conferencing between a plurality of local participants and a remote participant, and for wirelessly sharing audio and/or video content between the plurality of local participants.
The method includes the steps of providing an audio mixer that receives an audio input from each of at least three audio interfaces, mixes, cleans, and amplifies and/or de-amplifies the audio signal from the audio inputs and provides an equalized audio output to each of the at least three audio interfaces; providing a first local wireless interface between a first audio interface of the at least three audio interfaces and a wireless headset of a first local participant; providing a second local wireless interface between a second audio interface of the at least three audio interfaces and a wireless headset of a second local participant; and, providing a third wireless interface between a third audio interface of the at least three audio interfaces and a remote communications means for communicating with a remote participant, wherein the communication paths to the first local participant, second local participant and the remote participant are all discrete, so as to permit simultaneous two-way (incoming and outgoing) communications between each participant during wireless conferencing between the local participants and during wireless conferencing between the local participants and the remote participant, and so as to permit simultaneous one-way communications between an audio and/or video content source and each local
participant during wireless sharing of audio and/or video content between the local participants, and wherein the audio and/or video content source is included within the remote communications means.
In another embodiment of the present invention, the method includes the steps of providing an audio mixer that receives an audio input from each of at least four audio interfaces, mixes, cleans, and amplifies and/or de-amplifies the audio signal from the audio inputs and provides an equalized audio output to each of the at least four audio interfaces; providing a first local wireless interface between a first audio interface of the at least four audio interfaces and a wireless headset of a first local participant; providing a second local wireless interface between a second audio interface of the at least four audio interfaces and a wireless headset of a second local participant; providing a third wireless interface between a third audio interface of the at least four audio interfaces and a remote communications means for communicating with a remote participant; and providing a fourth wireless interface between a fourth audio interface of the at least four audio interfaces and an audio and/or video content source, wherein the communication paths to the first local participant, second local participant and the remote participant are all discrete, so as to permit simultaneous two-way communications (incoming and outgoing) between each participant during wireless conferencing between the local participants and during wireless conferencing between the local participants and the remote participant, and so as to permit simultaneous one-way communications between the audio and/or video content source and each local participant during wireless sharing of audio and/or video content between the local participants.
In either embodiment, the method in respect to wireless sharing of audio and/or video content between the local participants includes use of the otherwise two- way communications paths in a one-way configuration to permit stereo audio (separated into left and right audio channels) to be transmitted to the local participants, with one audio channel transmitted over the standard outgoing path and the other audio channel transmitted over the standard incoming path, which has been reversed to a secondary outgoing path in this configuration.
The method further includes means to switch between wireless conferencing between the local participants, wireless conferencing between the local participants and the remote participant, and wireless sharing of audio and/or video content between the local participants.
These and other features and advantages of the present invention will be apparent from the following detailed description, in conjunction with the appended claims.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS The benefits and advantages of the present invention will become more readily apparent to those of ordinary skill in the relevant art after reviewing the following detailed description and accompanying drawings, wherein:
FIG. 1 is a block diagram of the wireless communications connection device of the present invention.
DETAILED DESCRIPTION OF THE INVENTION While the present invention is susceptible of embodiment in various forms, there is shown in the figures and will hereinafter be described a presently preferred embodiment with the understanding that the present disclosure is to be considered an exemplification of the invention and is not intended to limit the invention to the specific embodiment illustrated. It should be further understood that the title of this section of this specification, namely, "Detailed Description Of The Invention," relates to a requirement of the United States Patent Office, and does not imply, nor should be inferred to limit the subject matter disclosed herein.
FIG. 1 is a block diagram of the wireless communications connection device in the preferred embodiment of the present invention. It will be appreciated, however, that the device shown in Fig. 1 and as described herein may be disposed within various components without departing from the scope of this disclosure. For example, the wireless communications device in the preferred embodiment of the present invention may be disposed within a free standing, dedicated wireless communications module, within a cellular phone, within a personal digital assistant, within an MP3 player (or similar audio playback device), within a personal computer, or within any number of similar electronic devices with audio capabilities.
As shown in Fig. 1, the wireless communications device of the present invention is comprised of a mixer 1 interactively coupled with a plurality of wireless controllers 2, 3 and 4. As further discussed below, it will be appreciated that, without departing from the scope of this disclosure, and without affecting the operational nature of the disclosed device, the number of wireless controllers will vary depending
upon the particular wireless communications protocol used (Bluetooth, Ultra- Wideband, etc.) and the maximum number of local participants intended to be supported by the device. In the preferred embodiment of the present invention, three wireless controllers are utilized.
Mixer 1 in the preferred embodiment of the present invention comprises a field-programmable gate array ("FPGA")- As well known to those skilled in the art, an FPGA is a semiconductor device containing programmable logic components and programmable interconnects. Mixer 1 is further interactively coupled with a programmable read only memory ("PROM") module 5. When the wireless communications connection device is powered on, mixer 1 interacts with PROM module 5 to receive and load the programming required for the operation of mixer 1.
Mixer 1 is programmed as a digital signal processor. That is, mixer 1 is programmed to receive digital audio input signals from the wireless controllers 2, 3 and 4 through audio interfaces 21, 31 and 41, respectively, to digitally mix, clean, and amplify and/or de-amplify the audio input signals, and to transmit the mixed, cleaned, and equalized digital audio output to the wireless controllers 2, 3 and 4 through audio interfaces 21, 31 and 41, respectively. The digital audio communications between mixer 1 and wireless controllers 2, 3 and 4 use multi-slot pulse-code modulation ("PCM") streams as are well known in the prior art.
Wireless controllers 2, 3 and 4 in the preferred embodiment of the present invention are Bluetooth radio devices each having a local wireless interface 22, 32, and 42, respectively. Local wireless interfaces 22, 32 and 42 further comprise RF amplifiers 23, 33 and 43, respectively, as well as antennas 24, 34 and 44, respectively, for transmitting and receiving wireless communications. In some embodiments of the present invention, when the wireless communications connection device is disposed within another electronic audio device already having an antenna, such as a cellular phone or a computer, antennas 24, 34 and 44 may be replaced by the antenna of such electronic audio device.
In the preferred embodiment, RF amplifiers are of the Class 1 variety, permitting wireless communications within an approximate range of 100 meters. However, it will be appreciated that the range of the system may be extended to greater distances by using a system of repeaters, and/or by using more powerful amplifiers (where permitted). Local wireless interfaces 22, 32 and 42 are designed to pairingly connect wireless controllers 2, 3 and 4 with other electronic audio devices
with Bluetooth capabilities, such as headsets, cellular phones, computers, MP3 players and the like. Without departing from the scope of this disclosure, it will be appreciated that the wireless controllers 2, 3 and 4 may operate under any appropriate communications protocol, including Bluetooth, Ultra- Wideband, and related future developed protocols.
Additionally in the preferred embodiment of the wireless communications connection device of the present invention, wireless controllers 2, 3 and 4 are interactively coupled with flash memory modules 25, 35 and 36, respectively. When the wireless communications connection device is powered on, wireless controllers 2, 3 and 4 interact with flash memory modules 25, 35 and 36, respectively, to receive and load the programming required for the operation of wireless controllers 2, 3 and 4.
A detailed description of the operation of the preferred embodiment of wireless communications connection device of the present invention follows.
Under the preferred embodiment, the wireless communications connection device of the present invention acts as the base of at least one local wireless network (a "piconet"). Each wireless controller 2, 3 and 4 is capable of establishing an independent piconet to communicate with a plurality of wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) such as cellular phones, headsets, computers, MP3 players and the like, under an appropriate communication protocol (e.g., Bluetooth, Ultra-Wideband, any other future protocol which can support communication with two audio channels, etc.).
Within the piconet, each wireless controller 2, 3 and 4 may function as a master and the plurality of wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) may function as slaves. It should be understood that while only nine slave devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) are shown in FIG. 1, the wireless communications connection device of the present invention is scalable to support any number of slave devices, the limiting factor being the communication protocol. For example, as further discussed below, current Bluetooth technology can support up to three slaves using synchronous connection-oriented links ("SCOs") and up to seven slaves using asynchronous connectionless links ("ACLs"). Thus, in the preferred embodiment of the present invention, which uses SCO links for transmission of voice audio, as discussed below, each wireless controller 2, 3 and 4 can support up to three slave devices.
The wireless controllers 2, 3 and 4 may use channels within a discrete frequency spectrum for communications within the piconet. The exact frequency spectrum and channels are dependent on the particular communications protocol utilized. For example, when using the Bluetooth protocol, as in the preferred embodiment of the present invention, the frequency range is from 2400 to 2483.5 MHz, with 79 discrete channels available between 2402 to 2480 MHz. As used herein, a channel (or "communication path") within a piconet means a duplex channel. As such, a channel includes both inbound and outbound paths.
For security of communications made over the piconet, and to create a more robust piconet that avoids interference, the wireless controllers 2, 3 and 4 may operate within the piconet using a frequency hopping format as is standard in the Bluetooth communications protocol. Frequency hopping may occur pseudorandomly at a rate of 1600 channels per second among a predetermined channel set (e.g., 23 RF channels, 79 RF channels, etc.).
Additionally, under the Bluetooth communications protocol used in the preferred embodiment of the present invention, the time slot on each channel may be 625 microseconds long, and packets within the piconet may be up to five slots long. Data within a packet may be up to 2,745 bits in length.
The information transfer rate within the piconet between the wireless controllers 2, 3 and 4 and the wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) may be 1 megabit per second ("Mbps") using Bluetooth 1.0 or 1.1 , or up to 3 Mbps using Bluetooth 2.0. The bandwidth may be further increased by the use of an alternate communication technology, such as Ultra-Wideband.
As previously discussed, communications between the master wireless controllers 2, 3 and 4 and the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) may use an SCO link or ACL link, or both, under the Bluetooth communications protocol in the preferred embodiment of the present invention. Each wireless controller 2, 3 and 4 can support up to three SCO links and seven ACL links.
Using SCO links, communications between the master and the slaves may be on reserved channels. SCO links provide a circuit-oriented service with constant bandwidth based on a fixed and periodic allocation of slots. Thus, to provide the highest possible audio quality during conferencing, in the preferred embodiment of the present invention, SCO links are used to carry voice communications between the
master wireless controllers 2, 3 and 4 and the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48).
Using ACL links, on the other hand, provides a packet-oriented service with the bandwidth of the piconet divided by the master among the slaves using a polling mechanism. Outbound information (i.e., from the master to the slaves) may be broadcast from the master to all slaves or point-to-point (i.e., from the master to one slave at a time). ACL slaves can only transmit when requested by the master. Since the slave units all transmit one-at-a-time under control of the master, the channels between the master and respective slaves are all different. In the preferred embodiment of the present invention, ACL links are used for the transmission of shared content to the slaves, as further discussed below.
Set up of a piconet channel for a slave unit may be accomplished in any of a number of different ways. Under one embodiment, using the Bluetooth protocol in the preferred embodiment of the present invention, set up between master wireless controllers 2, 3 and 4 and the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) may occur through a known process referred to as "pairing."
Pairing may be accomplished for a first slave wireless audio communications device 26, by activating a pairing button on the device 26 while at the same time activating a pairing button 6 on the wireless communications connection device of the present invention. In response, the wireless communications connection device transmits a piconet polling packet, including an identifier of the wireless communications connection device, to any nearby devices. Since the pairing button on the device 26 is activated, the device 26 may transmit a response identifying the type of device 26 involved. The wireless communications connection device may receive and analyze the packet to identify the device 26.
Once the device 26 has been identified, the wireless communications connection device may assign a unique address to the device 26 consistent with the type of device involved. The pairing process may be repeated with each of the other slave wireless audio communications devices 27, 28, 36, 37, 38, 46, 47 and 48. In the preferred embodiment of the present invention at least one such slave wireless audio communications device is a cellular phone, and at least one such slave wireless audio communications devices is a wireless headset. Alternatively, if the wireless communications connection device is disposed and integrated within a cellular phone,
then the cellular phone may act as the master and, in such as case, at least one wireless headset is paired to the master cellular phone as a slave.
In the preferred embodiment of the present invention, the master wireless controllers 2, 3 and 4 establish simultaneous SCO and ACL links with each slave wireless audio communications device (26, 27, 28, 36, 37, 38, 46, 47 and 48).
Once the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) have been paired with the wireless controllers 2, 3 and 4 of the wireless communications connection device of the present invention, non-call conferencing may occur between local participants using any paired slave wireless audio communications devices that permit two-way communications, such as a wireless headset (e.g., the Jabra Model BT800), a cellular phone (using the cellular phone's speaker and microphone), or even a computer (using the computer's built-in speaker and microphone).
A conference call between local participants and a remote participant may be established by initiating or receiving a call on one of the paired slave wireless audio communications devices that are capable of such (such as using a paired cellular phone to make cellular phone calls, or using a computer or similar device to contact a remote participant using VOIP (such as by using Skype, MSN Messenger, AOL Instant Messenger or a similar service). It will be appreciated that, in this context, a "call" to a remote participant can include a number of remote communications means for establishing two-way audio communications with a remote participant.
Once a conference call or wireless non-call conferencing is enabled, wireless controllers 2, 3 and 4 may open communications channels between audio interfaces 21, 31 and 41 of wireless controllers 2, 3 and 4, respectively, and audio interface 11 of mixer 1 to permit slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) to communicate with mixer 1.
Within the mixer 1, the audio signals from the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) are mixed, cleaned, amplified and/or de-amplified, and an equalized output provided to each slave wireless audio communications device (26, 27, 28, 36, 37, 38, 46, 47 and 48). As used herein, mixing means summing the audio input from the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48), dividing the sum by the number of slave wireless audio communications devices (26, 27, 28, 36, 37, 38,
46, 47 and 48), and providing an equalized audio output to each of the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48).
As opposed to prior art audio conferencing systems, the wireless communications connection device of the present invention operates in a full duplex mode with respect to the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48). In this regard, each slave wireless audio communications device (26, 27, 28, 36, 37, 38, 46, 47 and 48) communicates with the mixer 1 over an independent communication channel that is not shared with any other slave wireless audio communications device (26, 27, 28, 36, 37, 38, 46, 47 and 48). Moreover, in a conference call or wireless non-call conferencing configuration, each slave wireless audio communications device (26, 27, 28, 36, 37, 38, 46, 47 and 48) communicates with the wireless controllers 2, 3 and 4 using a Bluetooth SCO link in the preferred embodiment to maximize the quality of the voice communications.
In a second embodiment of the present invention, the wireless communications connection device of the preferred embodiment is enhanced with the ability to share content, such as stereo music, in the absence of a conference call or wireless non-call conferencing. In this embodiment, at least one of the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) is an audio and/or video content source (such as a computer, MP3 player, or cellular phone) with the ability to transmit (by streaming from an external source and/or from stored audio and/or video files) audio and/or video content. Further, for stereo audio, at least one of the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) is a headset compatible with the Advanced Audio Distribution Protocol ("A2DP"), and the wireless controllers 2, 3 and 4 are programmed to be A2DP- compliant.
A2DP is a Bluetooth protocol that encapsulates the "Generic Audio/Video Distribution Profile," for setting up a streaming audio or video channel, and the "Audio/Video Distribution Transport" protocol, for controlling streaming digital content over a Bluetooth connection. A2DP defines the protocols and procedures that realize distribution of stereo audio content using ACL links.
In this embodiment, the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) communicate with the master wireless controllers 2, 3 and 4 using Bluetooth SCO links for voice communications in a conference call or wireless non-call conferencing configuration. However, as discussed above, the slave
wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48) have simultaneously established links with the master wireless controllers 2, 3 and 4 using Bluetooth ACL links. In the absence of a conference call or wireless non-call conferencing using the SCO links, the ACL links may be utilized to stream audio and/or video content from the audio and/or video content source to the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48), while the SCO links remain available to use should a conference call or wireless non-call conferencing situation arise.
Specifically, when sharing stereo audio content between an audio and/or video content source and an A2DP-compatible headset over an ACL Bluetooth link, the duplex channel between the master wireless controller and the slave A2DP- compatitible headset may predominately be used as a one-way channel. That is, the otherwise two-way communications path permits stereo audio (separated into left and right audio channels) to be transmitted to slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48), with one audio channel transmitted over the standard outgoing path and the other audio channel transmitted over the standard incoming path, which has been reversed to a secondary outgoing path in this configuration.
Additionally, under this embodiment of the present invention, the wireless communications connection device includes a means to switch between wireless conferencing between the local participants, wireless conferencing between the local participants and the remote participant, and wireless sharing of audio and/or video content between the local participants. This may include a switch or button to transfer the device between "voice conference mode" (SCO links) and "content sharing mode" (ACL links). Under one embodiment, the transfer from content sharing mode to voice conference mode may be automatically triggered by the making or receiving of a call to a remote party using one of the slave wireless audio communications devices (26, 27, 28, 36, 37, 38, 46, 47 and 48).
The following examples are offered to help illustrate this embodiment.
Example 1
1. The wireless communications connection device of the present invention pairs with a plurality of A2DP-compatible headset devices.
2. The wireless communications connection device of the present invention pairs with a cellular phone for communicating with a remote participant.
3. The wireless communications connection device of the present invention pairs with an audio/video content source, such as an iPod or notebook computer running Apple Computer's iTunes.
In this example, all local participants using paired A2DP-compatible headsets may listen to stereo music and/or watch video streaming from the audio source using the ACL links. When the cellular phone rings from an incoming call from a remote participant, the local participants listening to stereo music may be interrupted to accept or reject the call. If the call is accepted, or if the wireless communications connection device is simply placed into a "voice conference mode," the local participants can conference amongst themselves (wireless non-call conferencing) and optionally participate in a wireless conference call with the remote party through the cellular phone using the SCO links. Local participants may return to content sharing over the ACL links once voice conferencing is complete.
Example 2
1. The wireless communications connection device of the present invention pairs with a plurality of A2DP-compatible headset devices.
2. The wireless communications connection device of the present invention pairs with a cellular phone with built-in content streaming technology.
In this example, the audio and/or video content source has been converged into a single device. Again, all local participants using paired A2DP-compatible headsets may listen to stereo music and/or watch video streaming from the cellular phone using the ACL links. When the cellular phone rings from an incoming call from a remote participant, the local participants listening to stereo music may be interrupted to accept or reject the call. If the call is accepted, or if the wireless communications connection device is simply placed into a "voice conference mode," the local participants can conference amongst themselves (wireless non-call conferencing) and optionally participate in a wireless conference call with the remote party through the cellular phone using the SCO links. Local participants may return to content sharing over the ACL links once voice conferencing is complete.
From the foregoing it will be observed that numerous modifications and variations can be effectuated without departing from the true spirit and scope of the novel concepts of the present invention. It is to be understood that no limitation with respect to the specific embodiments illustrated is intended or should be inferred. The
disclosure is intended to cover by the appended claims all such modifications as fall within the scope of the claims.
All patents referred to herein, are hereby incorporated herein by reference, whether or not specifically done so within the text of this disclosure.
In the present disclosure, the words "a" or "an" are to be taken to include both the singular and the plural. Conversely, any reference to plural items shall, where appropriate, include the singular.
Claims
1. A method for wirelessly conferencing and sharing content among a number of participants in a mobile environment, such method comprising: providing an audio mixer that receives an audio input from each of at least three audio interfaces, mixes and cleans an audio signal from the audio inputs and provides an equalized audio output to each of the at least three audio interfaces; providing a first local wireless interface between a first audio interface of the at least three audio interfaces and a wireless headset of a first local participant; providing a second local wireless interface between a second audio interface of the at least three audio interfaces and a wireless headset of a second local participant; providing a third local wireless interface between a third audio interface of the at least three audio interfaces and a remote communications means for communicating with a remote participant, providing simultaneous two-way communications between the first local participant and the second local participant during wireless non-call conferencing between the first local participant and the second local participant and providing simultaneous two-way communications between the first local participant, the second local participant, and the remote participant during wireless conferencing between the first local participant and the second local participant and the remote participant; and, providing simultaneous one-way communications between an audio and/or video content source and the first local participant and the second local participant during wireless sharing of audio and/or video content between the first local participant and the second local participant, wherein a first communication path to the first local participant, a second communication path to the second local participant, and a third communication path to the remote participant are all discrete, and wherein the audio and/or video content source is integrated within the remote communications means.
2. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 wherein the audio mixer is a field-programmable gate array.
3. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 wherein the first local wireless interface, the second local wireless interface, and the third local wireless interface utilize a Bluetooth protocol.
4. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 wherein the remote communications means comprises a cellular phone.
5. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 wherein the remote communications means comprises a computer using VOIP technology.
6. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 wherein the remote communications means comprises a computer using a webcam.
7. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 wherein the remote communications means comprises a personal digital assistant ("PDA").
8. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 wherein the simultaneous two-way communications between the first local participant and the second local participant during wireless non-call conferencing between the first local participant and the second local participant and the simultaneous two-way communications between the first local participant, the second local participant, and the remote participant during wireless conferencing between the first local participant and the second local participant and the remote participant utilize synchronous connection-oriented links under the Bluetooth protocol.
9. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 wherein the simultaneous one-way communications between the audio and/or video content source and the first local participant and the second local participant during wireless sharing of audio and/or video content between the first local participant and the second local participant utilize asynchronous connectionless links under the Bluetooth protocol.
10. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 wherein the audio and/or video content source comprises a cellular phone.
11. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 wherein the audio and/or video content source comprises a computer.
12. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 wherein the audio and/or video content source comprises a personal digital assistant ("PDA").
13. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 wherein the wireless headset of the first local participant and the wireless headset of the second local participant are A2DP-compliant.
14. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 13 wherein the audio and/or video content comprises stereo audio.
15. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 1 further comprising providing a means for switching between simultaneous two-way communications between the first local participant and the second local participant during wireless non-call conferencing between the first local participant and the second local participant, simultaneous two-way communications between the first local participant, the second local participant, and the remote participant during wireless conferencing between the first local participant and the second local participant and the remote participant, and simultaneous one-way communications between the audio and/or video content source and the first local participant and the second local participant during wireless sharing of audio and/or video content between the first local participant and the second local participant.
16. A method for wirelessly conferencing and sharing content among a number of participants in a mobile environment, such method comprising: providing an audio mixer that receives an audio input from each of at least four audio interfaces, mixes and cleans an audio signal from the audio inputs and provides an equalized audio output to each of the at least four audio interfaces; providing a first local wireless interface between a first audio interface of the at least four audio interfaces and a wireless headset of a first local participant; providing a second local wireless interface between a second audio interface of the at least four audio interfaces and a wireless headset of a second local participant; providing a third local wireless interface between a third audio interface of the at least four audio interfaces and a remote communications means for communicating with a remote participant; providing a fourth local wireless interface between a fourth audio interface of the at least four audio interfaces and an audio and/or video content source; providing simultaneous two-way communications between the first local participant and the second local participant during wireless non-call conferencing between the first local participant and the second local participant and providing simultaneous two-way communications between the first local participant, the second local participant, and the remote participant during wireless conferencing between the first local participant and the second local participant and the remote participant; and, providing simultaneous one-way communications between the audio and/or video content source and the first local participant and the second local participant during wireless sharing of audio and/or video content between the audio and/or video content source and the first local participant and the second local participant, wherein a first communication path to the first local participant, a second communication path to the second local participant, and a third communication path to the remote participant are all discrete.
17. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the audio mixer is a field-programmable gate array.
18. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the first local wireless interface, the second local wireless interface, the third local wireless interface, and the fourth local wireless interface utilize a Bluetooth protocol.
19. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the remote communications means comprises a cellular phone.
20. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the remote communications means comprises a computer using VOIP technology.
21. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the remote Communications means comprises a computer using a webcam.
22. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the remote communications means comprises a personal digital assistant ("PDA").
23. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the simultaneous two-way communications between the first local participant and the second local participant during wireless non-call conferencing between the first local participant and the second local participant and providing simultaneous two-way communications between the first local participant, the second local participant, and the remote participant during wireless conferencing between the first local participant and the second local participant and the remote participant utilize synchronous connection-oriented links under the Bluetooth protocol.
24. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the simultaneous one-way communications between the audio and/or video content source and the first local participant and the second local participant during wireless sharing of audio and/or video content between the audio and/or video content source and the first local participant and the second local participant utilize a asynchronous connectionless links under the Bluetooth protocol.
25. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the audio and/or video content source comprises a cellular phone.
26. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the audio and/or video content source comprises a computer.
27. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the audio and/or video content source comprises an MP3 player.
28. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the audio and/or video content source comprises a personal digital assistant ("PDA").
29. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the wireless headset of the first local participant and the wireless headset of the second local participant are A2DP-compliant.
30. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 wherein the audio and/or video content comprises stereo audio.
31. The method for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 16 further comprising providing a means for switching between the simultaneous two-way communications between the first local participant and the second local participant during wireless non-call conferencing between the first local participant and the second local participant, the simultaneous two-way communications between the first local participant, the second local participant, and the remote participant during wireless conferencing between the first local participant and the second local participant and the remote participant, and the simultaneous one-way communications between the audio and/or video content source and the first local participant and the second local participant during wireless sharing of audio and/or video content between the first local participant and the second local participant.
32. An apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment, such apparatus comprising: an audio mixer that receives an audio signal from an audio input from each of at least three audio interfaces, mixes and cleans the audio inputs, and provides an equalized audio output to each of the at least three audio interfaces; a first local wireless interface between a first audio interface of the at least three audio interfaces and a wireless headset of a first local participant; a second local wireless interface between a second audio interface of the at least three audio interfaces and a wireless headset of a second local participant; and a third local wireless interface between a third audio interface of the at least three audio interfaces and a remote communications means for communicating with a remote participant, wherein the audio mixer permits simultaneous two-way communications between the first local participant and the second local participant during wireless non-call conferencing between the first local participant and the second local participant and permits simultaneous two-way communications between the first local participant, the second local participant, and the remote participant during wireless conferencing between the first local participant and the second local participant and the remote participant; wherein the audio mixer provides simultaneous one-way communications between an audio and/or video content source and the first local participant and the second local participant during wireless sharing of audio and/or video content between the first local participant and the second local participant, and wherein a first communication path to the first local participant, a second communication path to the second local participant, and a third communication path to the remote participant are all discrete.
33. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 wherein the audio mixer is a field-programmable gate array.
34. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 wherein the first local wireless interface, the second local wireless interface, and the third local wireless interface utilize a Bluetooth protocol.
35. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 wherein the remote communications means comprises a cellular phone.
36. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 wherein the remote communications means comprises a computer using VOIP technology.
37. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 wherein the remote communications means comprises a computer using a webcam.
38. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 wherein the remote communications means comprises a personal digital assistant ("PDA").
39. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 wherein the simultaneous two-way communications between the first local participant and the second local participant during wireless non-call conferencing between the first local participant and the second local participant and the simultaneous two-way communications between the first local participant, the second local participant, and the remote participant during wireless conferencing between the first local participant and the second local participant and the remote participant utilize synchronous connection-oriented links under the Bluetooth protocol.
40. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 wherein the simultaneous one-way communications between the audio and/or video content source and the first local participant and the second local participant during wireless sharing of audio and/or video content between the first local participant and the second local participant utilize asynchronous connectionless links under the Bluetooth protocol.
41. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 wherein the audio and/or video content source comprises a cellular phone.
42. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 wherein the audio and/or video content source comprises a computer.
43. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 wherein the audio and/or video content source comprises a personal digital assistant ("PDA").
44. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 wherein the wireless headset of the first local participant and the wireless headset of the second local participant are A2DP-compliant.
45. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 44 wherein the audio and/or video content comprises stereo audio.
46. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 further comprising a means for switching between simultaneous two-way communications between the first local participant and the second local participant during wireless non-call conferencing between the first local participant and the second local participant, simultaneous two-way communications between the first local participant, the second local participant, and the remote participant during wireless conferencing between the first local participant and the second local participant and the remote participant, and simultaneous one-way communications between the audio and/or video content source and the first local participant and the second local participant during wireless sharing of audio and/or video content between the first local participant and the second local participant.
47. The apparatus for wirelessly conferencing and sharing content among a number of participants in a mobile environment as in claim 32 further comprising the audio mixer, the at least three audio interfaces, the first local wireless interface, the second local wireless interface, and the third local wireless interface disposed within any electronic device with audio capabilities (e.g. notebook computer, MP3 player, PDA (Personal Digital Assistant) Device, wireless phone and cellular phone).
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Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7742758B2 (en) * | 2005-08-19 | 2010-06-22 | Callpod, Inc. | Mobile conferencing and audio sharing technology |
US7707250B2 (en) * | 2006-05-02 | 2010-04-27 | Callpod, Inc. | Wireless communications connection device |
US8792945B2 (en) * | 2006-10-31 | 2014-07-29 | Motorola Mobility Llc | Methods and devices for dual mode bidirectional audio communication |
US8817740B2 (en) * | 2006-10-31 | 2014-08-26 | Motorola Mobility Llc | Methods and devices of a queue controller for dual mode bidirectional audio communication |
US9135605B2 (en) * | 2006-11-29 | 2015-09-15 | Adobe Systems Incorporated | Instant electronic meeting from within a current computer application |
US8359188B2 (en) * | 2006-12-28 | 2013-01-22 | Verizon Patent And Licensing Inc. | Network-based systems and methods for providing access to remote language services assets |
US20080240324A1 (en) * | 2007-03-27 | 2008-10-02 | Microsoft Corporation | Independent Dispatch of Multiple Streaming Queues Via Reserved Time Slots |
US20090060229A1 (en) * | 2007-09-05 | 2009-03-05 | Harris Richard H | Wireless system for sharing audio signal |
JP2009135589A (en) * | 2007-11-28 | 2009-06-18 | Ntt Docomo Inc | Mobile communication terminal and signal relay method |
US8930003B2 (en) * | 2007-12-31 | 2015-01-06 | The Nielsen Company (Us), Llc | Data capture bridge |
US8265240B2 (en) * | 2008-02-21 | 2012-09-11 | International Business Machines Corporation | Selectively-expandable speakerphone system and method |
GB2459280A (en) * | 2008-04-16 | 2009-10-21 | Waterborne Ltd | Communications apparatus, system and method of supporting a personal area network |
US8250147B2 (en) * | 2008-06-25 | 2012-08-21 | Microsoft Corporation | Remote call control and conferencing using paired devices |
US8121547B2 (en) * | 2008-12-24 | 2012-02-21 | Plantronics, Inc. | In-headset conference calling |
EP2486508A4 (en) * | 2009-09-04 | 2016-10-12 | Thomas Szoke | A personalized multifunctional access device possessing an individualized form of authenticating and controlling data exchange |
CN102726004B (en) * | 2010-01-22 | 2015-11-25 | 飞思卡尔半导体公司 | The network element providing phone to connect, telecommunication system, integrated circuit and method |
US8229096B1 (en) | 2010-02-09 | 2012-07-24 | West Corporation | Optimizing on-premise conferencing solutions |
US8995649B2 (en) | 2013-03-13 | 2015-03-31 | Plantronics, Inc. | System and method for multiple headset integration |
US9531767B2 (en) * | 2013-06-04 | 2016-12-27 | Google Technology Holdings LLC | Collaborative content streaming |
US20150028113A1 (en) * | 2013-07-29 | 2015-01-29 | Smart Stuff, Inc. | Zone temperature control system |
US9654643B2 (en) | 2013-09-13 | 2017-05-16 | Motorola Solutions, Inc. | Method and apparatus for unidirectional summing of group auditory data |
US9661144B2 (en) | 2013-09-13 | 2017-05-23 | Motorola Solutions, Inc. | Method and apparatus for priority summing of group auditory data |
US9544662B2 (en) | 2013-12-30 | 2017-01-10 | Google Technology Holdings LLC | Distributing metadata to peer devices |
US10374815B2 (en) * | 2014-12-17 | 2019-08-06 | Hewlett-Packard Development Company, L.P. | Host a conference call |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060251115A1 (en) * | 2004-12-03 | 2006-11-09 | Haque Samudra E | Broadband multi-service, switching, transmission and distribution architecture for low-cost telecommunications networks |
US20070186002A1 (en) * | 2002-03-27 | 2007-08-09 | Marconi Communications, Inc. | Videophone and method for a video call |
US20070294263A1 (en) * | 2006-06-16 | 2007-12-20 | Ericsson, Inc. | Associating independent multimedia sources into a conference call |
Family Cites Families (86)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US877158A (en) * | 1906-10-18 | 1908-01-21 | Oscar Anderson | Centrifugal cream-separator. |
US877758A (en) * | 1907-01-05 | 1908-01-28 | George G Connor | Skid and truck. |
US3541258A (en) * | 1967-05-29 | 1970-11-17 | Sylvania Electric Prod | Conference communication system with independent variable amplification of sidetone and conferee signals |
US3601904A (en) * | 1969-06-24 | 1971-08-31 | Leonard T Elliott Jr | Multiple student teaching apparatus and method |
CA1018254A (en) | 1973-03-29 | 1977-09-27 | Motorola | Portable telephone system having a battery saver feature |
US4229829A (en) * | 1978-03-16 | 1980-10-21 | Grunwald Peter H | Apparatus for wireless transmission of a teaching program in a classroom |
US4160122A (en) * | 1978-05-23 | 1979-07-03 | Jacobson Sava | Telephone earphone amplifier |
US4567332A (en) * | 1984-05-03 | 1986-01-28 | Jamison William E | Four-wire telephone system with self-test means |
JPS61172475A (en) | 1985-01-03 | 1986-08-04 | コントロロニクス・コーポレーシヨン | Completely duplex telephone for conference |
US4716585A (en) * | 1985-04-05 | 1987-12-29 | Datapoint Corporation | Gain switched audio conferencing network |
US4715063A (en) * | 1985-08-20 | 1987-12-22 | Motorola, Inc. | Speakerphone for radio and landline telephones |
US4882745A (en) * | 1987-05-08 | 1989-11-21 | Silver Alan H | Cordless headset telephone |
US4972457A (en) * | 1989-01-19 | 1990-11-20 | Spectrum Information Technologies, Inc. | Portable hybrid communication system and methods |
US5133002A (en) * | 1989-07-28 | 1992-07-21 | Ascii Corporation | Radiotelephone system that maintains synchronization between base and subordinate units while shifting carrier frequencies |
SE466427B (en) * | 1990-06-25 | 1992-02-10 | Ericsson Telefon Ab L M | HAND RELEASE MODULE FOR A MOBILE PHONE |
KR930003280B1 (en) * | 1990-10-25 | 1993-04-24 | 한국전기통신공사 | Control circuit for turning on-off automatically |
US5210791A (en) * | 1990-12-13 | 1993-05-11 | Michael Krasik | Telephone headset on-line indicator |
USD340455S (en) * | 1991-01-10 | 1993-10-19 | Cb Labs, Inc. | Portable musical instrument amplifier with a movable plug |
JPH04296125A (en) | 1991-03-26 | 1992-10-20 | Seiko Epson Corp | Telephone set |
USD327886S (en) * | 1991-04-12 | 1992-07-14 | Yan mao-ye | Telephone unit |
US5353347A (en) * | 1992-02-04 | 1994-10-04 | Acs Communications, Inc. | Telephone headset amplifier with battery saver, receive line noise reduction, and click-free mute switching |
US5226077A (en) * | 1992-03-02 | 1993-07-06 | Acs Communications, Inc. | Headset amplifier with automatic log on/log off detection |
US5982879A (en) * | 1992-04-03 | 1999-11-09 | Unex Corporation | Telephone headset amplifier and method of operation |
USD350735S (en) * | 1992-10-02 | 1994-09-20 | Psc Inc. | Bar code scanner |
JPH06237483A (en) | 1993-02-09 | 1994-08-23 | Matsushita Electric Ind Co Ltd | Radio telephone set |
US5890074A (en) | 1993-03-04 | 1999-03-30 | Telefonaktiebolaget L M Ericsson | Modular unit headset |
US5359647A (en) * | 1993-05-28 | 1994-10-25 | Plantronics, Inc. | Headset in-use indicator |
FR2706103B1 (en) * | 1993-06-03 | 1997-01-31 | Ericsson Ge Mobile Communicat | Radiotelephone apparatus. |
US5557653A (en) * | 1993-07-27 | 1996-09-17 | Spectralink Corporation | Headset for hands-free wireless telephone |
USD353783S (en) * | 1993-08-12 | 1994-12-27 | Velocity Kontrol Systems | Portable instrument for measuring water depth |
US5812683A (en) * | 1994-03-21 | 1998-09-22 | Parker; Thomas F. | Headphone jack extended outlet |
US5528666A (en) * | 1994-07-01 | 1996-06-18 | Motorola, Inc. | Personal phone expansion system |
US5625673A (en) * | 1994-09-22 | 1997-04-29 | Lucent Technologies Inc. | Modular communication apparatus |
US5504812A (en) * | 1994-10-11 | 1996-04-02 | Motorola, Inc. | Headset for use with a radiotelephone |
JPH08135723A (en) * | 1994-11-10 | 1996-05-31 | Tokai Rubber Ind Ltd | Fluid sealed cylindrical mount |
EP0836773A1 (en) * | 1995-06-07 | 1998-04-22 | E-Comm Incorporated | Handheld remote computer control and methods for secured interactive real-time telecommunications |
US5797089A (en) * | 1995-09-07 | 1998-08-18 | Telefonaktiebolaget Lm Ericsson (Publ) | Personal communications terminal having switches which independently energize a mobile telephone and a personal digital assistant |
JPH09114543A (en) * | 1995-10-02 | 1997-05-02 | Xybernaut Corp | Handfree computer system |
US5764743A (en) * | 1995-10-20 | 1998-06-09 | Motorola, Inc. | Method of controlling operation of a multi-line telephone apparatus |
EP0807361B1 (en) * | 1995-12-01 | 2005-11-23 | Koninklijke Philips Electronics N.V. | A digital cordless telephony system, a radio base station, and a combination of a radio base station and a cordless handset |
WO1997027697A1 (en) * | 1996-01-25 | 1997-07-31 | Oki Telecom | Portable telephone with terminal mode facility |
US5983100A (en) * | 1996-03-14 | 1999-11-09 | Telefonaktiebolaget Lm Ericsson | Circuit assembly for effectuating communication between a first and a second locally-positioned communication device |
USD391953S (en) * | 1996-05-10 | 1998-03-10 | Gn Netcom, Inc. | Wireless telephone headset transceiver |
US6130602A (en) * | 1996-05-13 | 2000-10-10 | Micron Technology, Inc. | Radio frequency data communications device |
US5832075A (en) * | 1996-09-20 | 1998-11-03 | Mitel Corporation | Off-hook detector for headset |
JPH10136100A (en) | 1996-10-28 | 1998-05-22 | Nec Telecom Syst Ltd | Conference telephone system |
USD387758S (en) | 1996-11-05 | 1997-12-16 | Motorola, Inc. | Portable communications device |
US6026082A (en) * | 1996-11-27 | 2000-02-15 | Telergy, Inc. | Wireless communication system |
USD389158S (en) * | 1996-12-17 | 1998-01-13 | Motorola, Inc. | Battery cover for a portable radio |
JP2928181B2 (en) | 1997-01-24 | 1999-08-03 | 日本電気テレコムシステム株式会社 | Audio conference equipment |
US5787180A (en) * | 1997-03-24 | 1998-07-28 | Transcrypt International, Inc. | Method of connecting a scrambler or encryption device to a hand-held portable cellular telephone |
US5978689A (en) * | 1997-07-09 | 1999-11-02 | Tuoriniemi; Veijo M. | Personal portable communication and audio system |
US6470197B1 (en) * | 1997-08-29 | 2002-10-22 | Veijo Matias Tuoriniemi | Headset control system for operating a microcontroller based device |
USD410228S (en) * | 1997-09-25 | 1999-05-25 | Garrick S Jones | Portable language translator |
USD417465S (en) * | 1997-11-06 | 1999-12-07 | Keith Kreitz | Medical training aid for discriminating auscultory sounds |
US6594366B1 (en) * | 1997-12-02 | 2003-07-15 | Siemens Information & Communication Networks, Inc. | Headset/radio auto sensing jack |
US5959929A (en) * | 1997-12-29 | 1999-09-28 | Micron Technology, Inc. | Method for writing to multiple banks of a memory device |
US6078825A (en) * | 1998-02-20 | 2000-06-20 | Advanced Mobile Solutions, Inc. | Modular wireless headset system for hands free talking |
US5951317A (en) * | 1998-04-13 | 1999-09-14 | Motorola, Inc. | Accessory connector assembly |
US5991398A (en) * | 1998-04-17 | 1999-11-23 | Ameritech Corporation | Telephone terminal apparatus and method |
JPH11355450A (en) | 1998-06-11 | 1999-12-24 | Sony Corp | Voice detecting device and speech communication device |
USD415131S (en) * | 1998-06-19 | 1999-10-12 | Clarinet Systems Inc. | Infrared adapter for bidirectional infrared communication between a portable computer and a network computer |
USD412501S (en) * | 1998-07-14 | 1999-08-03 | Motorola, Inc. | Portable communications device |
AU142923S (en) * | 1998-11-26 | 2001-02-12 | Ericsson Telefon Ab L M | A plug |
US6615059B1 (en) * | 1999-01-27 | 2003-09-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Mobile terminal interface |
US6321080B1 (en) * | 1999-03-15 | 2001-11-20 | Lucent Technologies, Inc. | Conference telephone utilizing base and handset transducers |
USD430052S (en) * | 1999-04-16 | 2000-08-29 | The First Years Inc. | Monitor |
USD444779S1 (en) * | 1999-10-04 | 2001-07-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio unit for a mobile phone |
US6650871B1 (en) * | 1999-10-14 | 2003-11-18 | Agere Systems Inc. | Cordless RF range extension for wireless piconets |
US6434402B1 (en) * | 1999-11-04 | 2002-08-13 | Ericsson Inc. | Accessory device for handling multiple calls on multiple mobile stations |
USD452684S1 (en) * | 1999-11-09 | 2002-01-01 | Cobra Electronics Corporation | Radio transceiver |
US6405027B1 (en) * | 1999-12-08 | 2002-06-11 | Philips Electronics N.A. Corporation | Group call for a wireless mobile communication device using bluetooth |
USD446207S1 (en) * | 2000-03-20 | 2001-08-07 | Marconi Communications, Inc. | Wall-mounted home network unit |
USD438856S1 (en) * | 2000-06-28 | 2001-03-13 | Sony Corporation | Audio visual recorder/player |
USD453154S1 (en) * | 2000-07-31 | 2002-01-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio unit for mobile phone |
US7339605B2 (en) * | 2004-04-16 | 2008-03-04 | Polycom, Inc. | Conference link between a speakerphone and a video conference unit |
USD454556S1 (en) * | 2001-03-07 | 2002-03-19 | Hello Direct, Inc. | Remote telephone transceiver |
FI114264B (en) * | 2001-04-19 | 2004-09-15 | Bluegiga Technologies Oy | Wireless conference telephone system control |
US6801611B2 (en) * | 2001-06-29 | 2004-10-05 | Callpod, Inc. | Call pod for having conference calls in a portable environment |
JP2003140985A (en) | 2001-10-30 | 2003-05-16 | Supreme Magic:Kk | Bluetooth unit |
US7539486B2 (en) * | 2002-05-06 | 2009-05-26 | Avaya Inc. | Wireless teleconferencing system |
US20040086093A1 (en) * | 2002-10-29 | 2004-05-06 | Schranz Paul Steven | VoIP security monitoring & alarm system |
JP4025254B2 (en) * | 2003-06-30 | 2007-12-19 | 株式会社東芝 | Wireless communication connection method and electronic device |
US20050122389A1 (en) * | 2003-11-26 | 2005-06-09 | Kai Miao | Multi-conference stream mixing |
US7742758B2 (en) | 2005-08-19 | 2010-06-22 | Callpod, Inc. | Mobile conferencing and audio sharing technology |
US7707250B2 (en) | 2006-05-02 | 2010-04-27 | Callpod, Inc. | Wireless communications connection device |
-
2006
- 2006-05-02 US US11/381,210 patent/US7707250B2/en active Active
-
2007
- 2007-05-02 WO PCT/US2007/068054 patent/WO2007131049A2/en active Application Filing
-
2010
- 2010-03-11 US US12/722,006 patent/US7945624B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070186002A1 (en) * | 2002-03-27 | 2007-08-09 | Marconi Communications, Inc. | Videophone and method for a video call |
US20060251115A1 (en) * | 2004-12-03 | 2006-11-09 | Haque Samudra E | Broadband multi-service, switching, transmission and distribution architecture for low-cost telecommunications networks |
US20070294263A1 (en) * | 2006-06-16 | 2007-12-20 | Ericsson, Inc. | Associating independent multimedia sources into a conference call |
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US7707250B2 (en) | 2010-04-27 |
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US20070260682A1 (en) | 2007-11-08 |
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