WO2009076974A1 - Mode control for an electronic device with touch ui - Google Patents

Mode control for an electronic device with touch ui Download PDF

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Publication number
WO2009076974A1
WO2009076974A1 PCT/EP2007/011001 EP2007011001W WO2009076974A1 WO 2009076974 A1 WO2009076974 A1 WO 2009076974A1 EP 2007011001 W EP2007011001 W EP 2007011001W WO 2009076974 A1 WO2009076974 A1 WO 2009076974A1
Authority
WO
WIPO (PCT)
Prior art keywords
electronic device
touch sensitive
mode
user interface
sensitive component
Prior art date
Application number
PCT/EP2007/011001
Other languages
French (fr)
Inventor
Thomas Bove
Romel Sarkez Amineh
Original Assignee
Nokia Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Corporation filed Critical Nokia Corporation
Priority to PCT/EP2007/011001 priority Critical patent/WO2009076974A1/en
Publication of WO2009076974A1 publication Critical patent/WO2009076974A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3209—Monitoring remote activity, e.g. over telephone lines or network connections
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/4401—Bootstrapping
    • G06F9/4418—Suspend and resume; Hibernate and awake
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/0254—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity detecting a user operation or a tactile contact or a motion of the device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2200/00—Indexing scheme relating to G06F1/04 - G06F1/32
    • G06F2200/16—Indexing scheme relating to G06F1/16 - G06F1/18
    • G06F2200/163—Indexing scheme relating to constructional details of the computer
    • G06F2200/1637—Sensing arrangement for detection of housing movement or orientation, e.g. for controlling scrolling or cursor movement on the display of an handheld computer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/22—Details of telephonic subscriber devices including a touch pad, a touch sensor or a touch detector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to a mobile electronic device provided with a touch sensitive user interface, in particular to enabling and disabling the user interface.
  • US 5,864,765 relates to enabling and automatic disabling of keys on a mobile telephone terminal keypad, wherein the terminal includes a display and key depression sensing means.
  • a time parameter denotes the length of time that has passed since a key was last pressed and is set to zero by means adapted to this end, and counting-up of the value of the time parameter is commenced subsequent to setting the time parameter to zero.
  • the time parameter is compared with a threshold value (Tlock) and automatic inactivation of the keys in the keypad is initiated immediately the time parameter exceeds the threshold value (Tlock) .
  • An appropriately selected key is kept activated for activation during that time in which the keypad is in an inactivated mode, and the terminal is set to a stand-by mode.
  • Touch based user input devices have recently become increasingly popular in portable electronic devices.
  • a problem associated with these devices is their inherent high sensitivity to touch and the thereby increased risk of inadvertent input. Further, it can be irritating for users to experience that the device has automatically disabled input via the touch sensitive input device just before the user is about to use the device.
  • the signaling of the change to the transition mode can be realized by dimming or deactivating the backlighting of the user interface or a portion thereof, such as the backlighting of the touch sensitive component.
  • the electronic device may be configured to return to the active mode from the transition mode when the touch sensitive device is touched. Once the sleep mode has been entered the device may return to the active mode upon detection of the predetermined condition.
  • a condition could be an incoming event, such as a call or a message, the touching of the device on a magic spot that is hard to touch by coincidence, touching two predetermined spots, simultaneously or subsequently in a predetermined order and within a given time interval, depressing a mechanical key, the moving of housing parts of the device relative to one another or the detection of a predetermined movement pattern of the device by an inbuilt movement sensor.
  • the pattern could be any predetermined pattern that will not accidentally occur during normal use but that is on the other hand easy to perform by a user. Examples of such patterns are any typical back and forth shaking movements .
  • the touch of the two predetermined position can be simultaneous or in a predetermined sequence within a given time interval.
  • Fig. 1 is a plane front view of a mobile phone with a touchpad according to an embodiment of the invention
  • Fig. 2 is a block diagram illustrating the general architecture of a mobile phone if Fig. 1 in accordance with the present invention
  • Fig. 3 is a collection of screenshots illustrating the operation of the device shown in Fig. 1 and Fig. 4 is a flow chart of a touchpad operation method according to the invention.
  • Fig. 1 illustrates a first embodiment of a mobile terminal according to the invention in the form of a mobile telephone 1 by a front view.
  • the mobile phone 1 comprises a user interface having a housing 2, a touch screen 3, a mechanical on/off button (not shown) , a speaker 5 (only the opening is shown) , and a microphone 6 (not visible in Fig. 1) .
  • the phone 1 according to the first preferred embodiment is adapted for communication via a cellular network, such as the GSM 900/1800 MHz network, but could just as well be adapted for use with a Code Division Multiple Access (CDMA) network, a 3G network, or a TCP/IP-based network to cover a possible VoIP-network (e.g. via WLAN, WIMAX or similar) or a mix of VoIP and Cellular such as UMA (Universal Mobile Access) .
  • CDMA Code Division Multiple Access
  • 3G Wireless Fidelity
  • TCP/IP-based network to cover a possible VoIP-network (e.g
  • Non vocal user input is mainly via a graphical user interface (not shown) that is displayed on the touchscreen 3.
  • the graphical user interface may include displaying a numerical keypad for dialing phone numbers, displaying a keyboard for entering text and displaying of icons for selecting functions and programs.
  • a releasable rear cover gives access to the SIM card 20 (Fig. 2), and the battery pack 24 (Fig. 2) in the back of the phone that supplies electrical power for the electronic components of the mobile phone 1.
  • the mobile phone 1 has a flat display 3 that is typically made of an LCD with back lighting, such as a TFT matrix capable of displaying color images.
  • a touch screen is disposed on top of the LCD display.
  • This mechanical key 10 is in some embodiments of the invention used in connection with unlocking the device.
  • the mechanical key 10 may also have other special functions associated therewith, such as a shortcut to the top level menu.
  • Fig. 2 illustrates in block diagram form the general architecture of a mobile phone 1 constructed in accordance with the present invention.
  • the processor 18 controls the operation of the terminal and has an integrated digital signal processor 17 and an integrated RAM 15.
  • the processor 18 controls the communication with the cellular network via the transmitter/receiver circuit 19 and an internal antenna 20.
  • a microphone 6 coupled to the processor 18 via voltage regulators 21 transforms the user's speech into analogue signals, the analogue signals formed thereby are A/D converted in an A/D converter (not shown) before the speech is encoded in the DSP 17 that is included in the processor 18.
  • the encoded speech signal is transferred to the processor 18, which e.g. supports the GSM terminal software.
  • the digital signal-processing unit 17 speech-decodes the signal, which is transferred from the processor 18 to the speaker 5 via a D/A converter (not shown) .
  • the voltage regulators 21 form the interface for the speaker 5, the microphone 6, the LED drivers 65 (for the LEDS backlighting the keypad 7 and the display 3, and in some embodiments below the touchpad) , the SIM card 20, battery 24, the bottom connector 27, the DC jack 31 (for connecting to the charger 33) and the audio amplifier 33 that drives the (hands-free) loudspeaker 25.
  • the processor 18 also forms the interface for some of the peripheral units of the device, including a Flash ROM memory 16, the touch screen 3, the mechanical key 10 and an FM radio 26.
  • Figure 2 also includes a diagrammatic overview of the software architecture, which in an embodiment includes an operating system, a communication module, a graphics module, a touch input lock unlock module and applications .
  • the touchscreen 3 is configured to provide one or more control functions for controlling various applications associated with the mobile phone or other type of mobile electric device.
  • the touch initiated control function may be used to move an object or perform an action on the touchscreen 3 or to make selections or issue commands associated with operating the mobile phone or other mobile electric device.
  • the touchscreen is arranged to receive input from a finger pressing on- or moving over the surface of the touchpad in order to implement the touch initiated control function.
  • the input lock/unlock module includes software code to control the operating mode of the phone 1.
  • the phone 1 may operate in an active mode and, a sleep mode and a transition mode.
  • the active mode is a mode wherein all functions of the electric device 1 are available, e.g. the touch sensitive function to the touch screen is enabled and allows user input and the backlighting of the touch screen is on at a brightness that suits normal use of the display and ensures proper visibility of the information displayed on the screen 3.
  • the touch sensitive function of the touchscreen 3 is disabled for avoiding inadvertent input and the backlighting of the display screen 3 and any other user interface components are switched off to save on the battery 24.
  • the touch input functionality of the touchscreen 3 is enabled, but the user interface signals to the user that an automatic change to the sleep mode is imminent. This may for example be by dimming the backlights or a portion thereof.
  • the transitions between the modes are smooth and in sync, i.e. the change in backlighting level is smooth and not abrupt.
  • the active mode is illustrated by Fig. 3 shows an example of the active mode wherein the user can enter a phone number via a virtual keypad 7 that is displayed on the touch screen 3.
  • the virtual keypad includes the keys that are typically included in a mobile phone dial pad, i.e. the numbers 1-0 and the * and # sign.
  • a number entry box, a call initiate button, a clear button and an options button are also displayed on the touch screen 3.
  • the timer of the input lock/unlock module starts running and is reset upon user input through the user interface, for example when the user presses one of the buttons of the virtual keypad 7, presses the call initiate button or touches the touchscreen 3 in any other way.
  • the timer reaches a first predetermined threshold tl the input lock/unlock module changes the mode to an transition node that is illustrated by the second screenshot of figure 3.
  • the timer keeps running and will also be reset upon activity of the user interface.
  • the input lock/unlock module includes software code that reduces the visibility of the virtual keypad 7 by changing the appearance thereof in the transition mode to indicate to the user that an automatic change to a sleep mode is imminent.
  • the appearance of the virtual keypad is changed by changing from a black line color to a grey line color. It is evident that many other ways could be used to indicate this change, for example by changing to interrupted lines or by reducing the strength/intensity of the back lighting behind the virtual keyboard.
  • the mobile phone may be provided with a touch sensitive keypad or touchpad that is not in the form of a touchscreen. In this embodiment the change to the transition mode may be indicated by dimming the backlighting of this touch sensitive component of the user interface.
  • the touchscreen 3 In the transition mode the touchscreen 3 is not disabled and the user can still continue user input by touch on the touchscreen 3. If the user interface remains inactive in the transition state for a given time interval, which may be defined as a second threshold t2 from the moment in time where the timer started running that is higher than the first threshold tl, the software code in the touch input lock/unlock module changes the operating mode to the sleep mode that is illustrated by the third screenshot of figure 3. In the sleep mode the software code in the input lock/unlock mode disables input via the touchscreen 3.
  • a given time interval which may be defined as a second threshold t2 from the moment in time where the timer started running that is higher than the first threshold tl
  • the software code in the input lock/unlock mode completely removes the visibility of the virtual keypad 7 and reduces the visibility of the other components of the graphical user interface that are shown on the touchscreen 3 for both saving energy and indicating to the user that the mobile phone 1 is in the sleep mode.
  • the reduction of the visibility of the other components of the graphical user interface may be obtained by changing the color in which they are shown on the touchscreen 3 or only by removing or dimming the backlighting.
  • the touch input lock/unlock module only allows the phone 1 to return to the active mode upon fulfillment of a predetermined condition.
  • a predetermined condition There may be various different predetermined conditions that enable the phone to return to the active mode.
  • An example of such a condition is an incoming event, such as an incoming call or an incoming message.
  • Another example of such a condition is when the hard key 10 is pressed.
  • Yet another example of such a condition is when the on/off button 4 is pressed.
  • the predetermined condition is the movement of housing parts relative to one another.
  • the condition is that the touchscreen 3 is touched at two different predetermined positions. These two predetermined positions may according to an embodiment be touched simultaneously or according to another embodiment be touched one after another in a predetermined sequence and within a predetermined time interval.
  • the device is configured to automatically enter into the sleep mode after a predetermined period of inactivity of the user interface and to return to the active mode when the touch sensitive component is touched in a predetermined area followed by a predetermined movement over the touch sensitive component.
  • the predetermined area is small relative to the touch sensitive area of said touch sensitive component, to reduce the chance that the touch in this area is accidental.
  • the predetermined movement can be one of a group of predetermined movement patterns or shapes. An example of such a predetermined movement is an L- shaped sliding movement along the edges of the touch sensitive component (such as a touchscreen) .
  • the mobile phone includes a motion sensor and the condition for returning to the active mode from the sleep mode is the detection of a predetermined movement pattern by the motion sensor.
  • the mobile phone includes a touch sensitive user interface component that is difficult to touch inadvertently.
  • the condition for returning to the active mode from the sleep mode is the touch of this specially placed touch sensitive component.
  • Fig. 4 is a flow chart of a control method in accordance with an embodiment of the invention. The method starts at block 410 in the active mode. Following block 410, the control method proceeds to block 412 where the timer is reset.
  • the timer is started in block 414.
  • the process checks if the user interface has been active, for example by checking if the touch screen 3 has been touched in block 416. If the touchscreen has been touched the process returns to block 412, resets the timer and starts the timer again in block 414.
  • the process moves to block 418 and checks if the first threshold tl is exceeded. If this is not the case, the process returns to block 416. If the first threshold tl is exceeded, the process moves to block 420, changes to the transition mode and signals a mode change to the user, for example by dimming the backlighting.
  • the process moves to block 422 and checks whether the timer exceeds the second threshold t2. If this is not the case, the process moves to block 424 to determine whether the touch sensitive device has been touched.
  • the process moves back to block 410, returns to the active mode and subsequently resets the timer in block 412. If the touch sensitive device has not been touched in block 424 the process returns to block 422.
  • the process moves on to block 426, enters the sleep mode and disables the touch sensitive device. In this step the process may also turn off the backlighting of the touchscreen completely in order to save on the battery.
  • the process moves to block 428 and checks whether an unlock condition is met. If the unlock condition is not met the process remains in block 428 until an unlock condition is met. When an unlock condition is met, the process moves back to block 410, returns to the active mode and subsequently resets the timer in block 412.
  • the various aspects of the invention described above can be used alone or in various combinations.
  • the invention is preferably implemented by a combination of hardware and software, but can also be implemented in hardware or software.
  • the invention can also be embodied as computer readable code on a computer readable medium.
  • a scrolling feature is not the limitation and that the touchpad may be used to manipulate other features.
  • the touchscreen may be used to adjust the volume control in an audio application.
  • the touchscreen may be used to advance to frames in a movie editing application.
  • the touchscreen may also be used in video game applications.
  • the invention has numerous advantages. Different embodiments or implementations may yield one or more of the following advantages. It should be noted that this is not an exhaustive list and there may be other advantages which are not described herein.
  • One advantage of the invention is that a user is alerted of an upcoming change to a sleep mode.
  • Another advantage of the invention is that the user has an opportunity to activate the user interface when an automatic entry into sleep mode is imminent for avoiding an automatic entry into the sleep mode.
  • Yet another advantage of the invention is that it allows for the unlocking of a user interface by moving the electronic device in a predetermined movement pattern.
  • Yet another advantage of the invention is that it allows for the unlocking of user interface by touching a touch sensitive user interface component at two separate predetermined positions.
  • the invention has been described in terms of a mobile phone, it should be appreciated that the invention may also be applied to other types of electronic devices, such as cameras, video recorders, music players, palmtop computers and the like. Moreover, certain aspects of the invention are not limited to handheld devices.
  • the touchpad may also be used in other computing devices such as a laptop computer.
  • the touchpad may also be used as a stand-alone input device that connects to a desktop or portable computer.
  • the touchscreen has been described in terms of being actuated by a finger, it should be noted that other objects may be used to actuate in some cases. For example, a stylus or other object may be used in some configurations of the touchpad.

Abstract

An electronic device with a user interface that includes at least one touch sensitive component. The device has a sleep mode in which the touch sensitive component is disabled and an active mode in which the touch sensitive component is enabled. The device also has a transition mode in which the touch sensitive component is enabled. After a period of inactivity of the user interface in the active mode, the device changes to the transition mode and signals this to the user by a change in the look of the user interface, such as by dimming out the backlighting of the touch sensitive component. If the user interface subsequently remains inactive for a given period of time the device automatically changes to the sleep mode and disables the touch sensitive component of the user interface.

Description

MODE CONTROL FOR AN ELECTRONIC DEVICE WITH TOUCH UI
FIELD OF THE INVENTION
The present invention relates to a mobile electronic device provided with a touch sensitive user interface, in particular to enabling and disabling the user interface.
BACKGROUND OF THE INVENTION
US 5,864,765 relates to enabling and automatic disabling of keys on a mobile telephone terminal keypad, wherein the terminal includes a display and key depression sensing means. A time parameter denotes the length of time that has passed since a key was last pressed and is set to zero by means adapted to this end, and counting-up of the value of the time parameter is commenced subsequent to setting the time parameter to zero. The time parameter is compared with a threshold value (Tlock) and automatic inactivation of the keys in the keypad is initiated immediately the time parameter exceeds the threshold value (Tlock) . An appropriately selected key is kept activated for activation during that time in which the keypad is in an inactivated mode, and the terminal is set to a stand-by mode.
Touch based user input devices have recently become increasingly popular in portable electronic devices. A problem associated with these devices is their inherent high sensitivity to touch and the thereby increased risk of inadvertent input. Further, it can be irritating for users to experience that the device has automatically disabled input via the touch sensitive input device just before the user is about to use the device.
DISCLOSURE OF THE INVENTION
On this background, it is an object of the present invention to provide an electronic device with a user interface that overcomes or at least reduces the drawbacks associated with the existing methods for disabling a user interface with a touch sensitive component .
It is another object of the present invention to provide an electronic device having a user interface comprising at least one touch sensitive user input device, the electronic device having at least an active mode wherein the at least one touch sensitive user input device input is enabled, a sleep mode wherein the at least one touch sensitive user input device input is disabled and a transition mode wherein the user interface signals that an automatic change from the active mode to the sleep mode is imminent.
The signaling of the change to the transition mode can be realized by dimming or deactivating the backlighting of the user interface or a portion thereof, such as the backlighting of the touch sensitive component.
The electronic device may be configured to return to the active mode from the transition mode when the touch sensitive device is touched. Once the sleep mode has been entered the device may return to the active mode upon detection of the predetermined condition. Such a condition could be an incoming event, such as a call or a message, the touching of the device on a magic spot that is hard to touch by coincidence, touching two predetermined spots, simultaneously or subsequently in a predetermined order and within a given time interval, depressing a mechanical key, the moving of housing parts of the device relative to one another or the detection of a predetermined movement pattern of the device by an inbuilt movement sensor.
It is another object of the present invention to provide an electronic device having a user interface with at least one touch sensitive component and a motion sensor, the electronic device having at least an active mode and a sleep mode, wherein the device is configured to automatically enter into the sleep mode after a predetermined period of inactivity of the user interface and to return to the active mode when the motion sensor detects that the electronic device is moved in accordance with a predetermined pattern.
The pattern could be any predetermined pattern that will not accidentally occur during normal use but that is on the other hand easy to perform by a user. Examples of such patterns are any typical back and forth shaking movements .
It is another object of the present invention to provide an electronic device having a user interface with at least one touch sensitive component, the electronic device having at least an active mode and a sleep mode, wherein the device is configured to automatically enter into the sleep mode after a predetermined period of inactivity of the user interface and to return to the active mode when the touch sensitive component is touched at two predetermined positions. The touch of the two predetermined position can be simultaneous or in a predetermined sequence within a given time interval.
Further objects, features, advantages and properties of the touchpad, method and computer readable medium according to the invention will become apparent from the detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following detailed portion of the present description, the invention will be explained in more detail with reference to the exemplary embodiments shown in the drawings, in which:
Fig. 1 is a plane front view of a mobile phone with a touchpad according to an embodiment of the invention, Fig. 2 is a block diagram illustrating the general architecture of a mobile phone if Fig. 1 in accordance with the present invention,
Fig. 3 is a collection of screenshots illustrating the operation of the device shown in Fig. 1 and Fig. 4 is a flow chart of a touchpad operation method according to the invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
In the following detailed description, the touchpad, the mobile electronic device, the method and the software product according to the invention in the form of a cellular/mobile phone will be described by the preferred embodiments .
Fig. 1 illustrates a first embodiment of a mobile terminal according to the invention in the form of a mobile telephone 1 by a front view. The mobile phone 1 comprises a user interface having a housing 2, a touch screen 3, a mechanical on/off button (not shown) , a speaker 5 (only the opening is shown) , and a microphone 6 (not visible in Fig. 1) . The phone 1 according to the first preferred embodiment is adapted for communication via a cellular network, such as the GSM 900/1800 MHz network, but could just as well be adapted for use with a Code Division Multiple Access (CDMA) network, a 3G network, or a TCP/IP-based network to cover a possible VoIP-network (e.g. via WLAN, WIMAX or similar) or a mix of VoIP and Cellular such as UMA (Universal Mobile Access) .
Non vocal user input is mainly via a graphical user interface (not shown) that is displayed on the touchscreen 3. The graphical user interface may include displaying a numerical keypad for dialing phone numbers, displaying a keyboard for entering text and displaying of icons for selecting functions and programs.
A releasable rear cover (not shown) gives access to the SIM card 20 (Fig. 2), and the battery pack 24 (Fig. 2) in the back of the phone that supplies electrical power for the electronic components of the mobile phone 1.
The mobile phone 1 has a flat display 3 that is typically made of an LCD with back lighting, such as a TFT matrix capable of displaying color images. A touch screen is disposed on top of the LCD display.
Below the touch screen 3 there is a mechanical key 10. This mechanical key 10 is in some embodiments of the invention used in connection with unlocking the device. The mechanical key 10 may also have other special functions associated therewith, such as a shortcut to the top level menu.
Fig. 2 illustrates in block diagram form the general architecture of a mobile phone 1 constructed in accordance with the present invention. The processor 18 controls the operation of the terminal and has an integrated digital signal processor 17 and an integrated RAM 15. The processor 18 controls the communication with the cellular network via the transmitter/receiver circuit 19 and an internal antenna 20. A microphone 6 coupled to the processor 18 via voltage regulators 21 transforms the user's speech into analogue signals, the analogue signals formed thereby are A/D converted in an A/D converter (not shown) before the speech is encoded in the DSP 17 that is included in the processor 18. The encoded speech signal is transferred to the processor 18, which e.g. supports the GSM terminal software. The digital signal-processing unit 17 speech-decodes the signal, which is transferred from the processor 18 to the speaker 5 via a D/A converter (not shown) .
The voltage regulators 21 form the interface for the speaker 5, the microphone 6, the LED drivers 65 (for the LEDS backlighting the keypad 7 and the display 3, and in some embodiments below the touchpad) , the SIM card 20, battery 24, the bottom connector 27, the DC jack 31 (for connecting to the charger 33) and the audio amplifier 33 that drives the (hands-free) loudspeaker 25.
The processor 18 also forms the interface for some of the peripheral units of the device, including a Flash ROM memory 16, the touch screen 3, the mechanical key 10 and an FM radio 26.
Figure 2 also includes a diagrammatic overview of the software architecture, which in an embodiment includes an operating system, a communication module, a graphics module, a touch input lock unlock module and applications .
The touchscreen 3 is configured to provide one or more control functions for controlling various applications associated with the mobile phone or other type of mobile electric device. For example, the touch initiated control function may be used to move an object or perform an action on the touchscreen 3 or to make selections or issue commands associated with operating the mobile phone or other mobile electric device. Normally, the touchscreen is arranged to receive input from a finger pressing on- or moving over the surface of the touchpad in order to implement the touch initiated control function.
The input lock/unlock module includes software code to control the operating mode of the phone 1. The phone 1 may operate in an active mode and, a sleep mode and a transition mode. The active mode is a mode wherein all functions of the electric device 1 are available, e.g. the touch sensitive function to the touch screen is enabled and allows user input and the backlighting of the touch screen is on at a brightness that suits normal use of the display and ensures proper visibility of the information displayed on the screen 3. In the sleep mode the touch sensitive function of the touchscreen 3 is disabled for avoiding inadvertent input and the backlighting of the display screen 3 and any other user interface components are switched off to save on the battery 24. In the transition mode the touch input functionality of the touchscreen 3 is enabled, but the user interface signals to the user that an automatic change to the sleep mode is imminent. This may for example be by dimming the backlights or a portion thereof. According to an embodiment the transitions between the modes are smooth and in sync, i.e. the change in backlighting level is smooth and not abrupt.
The active mode is illustrated by Fig. 3 shows an example of the active mode wherein the user can enter a phone number via a virtual keypad 7 that is displayed on the touch screen 3. The virtual keypad includes the keys that are typically included in a mobile phone dial pad, i.e. the numbers 1-0 and the * and # sign. A number entry box, a call initiate button, a clear button and an options button are also displayed on the touch screen 3.
As soon as the mobile phone 1 is in the active mode the timer of the input lock/unlock module starts running and is reset upon user input through the user interface, for example when the user presses one of the buttons of the virtual keypad 7, presses the call initiate button or touches the touchscreen 3 in any other way. When the timer reaches a first predetermined threshold tl the input lock/unlock module changes the mode to an transition node that is illustrated by the second screenshot of figure 3. In the transitional mode the timer keeps running and will also be reset upon activity of the user interface. The input lock/unlock module includes software code that reduces the visibility of the virtual keypad 7 by changing the appearance thereof in the transition mode to indicate to the user that an automatic change to a sleep mode is imminent. In the present embodiment the appearance of the virtual keypad is changed by changing from a black line color to a grey line color. It is evident that many other ways could be used to indicate this change, for example by changing to interrupted lines or by reducing the strength/intensity of the back lighting behind the virtual keyboard. In another embodiment (not shown) , the mobile phone may be provided with a touch sensitive keypad or touchpad that is not in the form of a touchscreen. In this embodiment the change to the transition mode may be indicated by dimming the backlighting of this touch sensitive component of the user interface.
In the transition mode the touchscreen 3 is not disabled and the user can still continue user input by touch on the touchscreen 3. If the user interface remains inactive in the transition state for a given time interval, which may be defined as a second threshold t2 from the moment in time where the timer started running that is higher than the first threshold tl, the software code in the touch input lock/unlock module changes the operating mode to the sleep mode that is illustrated by the third screenshot of figure 3. In the sleep mode the software code in the input lock/unlock mode disables input via the touchscreen 3. In the shown embodiment the software code in the input lock/unlock mode completely removes the visibility of the virtual keypad 7 and reduces the visibility of the other components of the graphical user interface that are shown on the touchscreen 3 for both saving energy and indicating to the user that the mobile phone 1 is in the sleep mode. The reduction of the visibility of the other components of the graphical user interface may be obtained by changing the color in which they are shown on the touchscreen 3 or only by removing or dimming the backlighting.
Once the mobile phone 1 is in the sleep mode the touch input lock/unlock module only allows the phone 1 to return to the active mode upon fulfillment of a predetermined condition. There may be various different predetermined conditions that enable the phone to return to the active mode. An example of such a condition is an incoming event, such as an incoming call or an incoming message. Another example of such a condition is when the hard key 10 is pressed. Yet another example of such a condition is when the on/off button 4 is pressed. According to an embodiment (not shown) in which the phone has more than one housing part that can be moved relative to one another, the predetermined condition is the movement of housing parts relative to one another. In another embodiment the condition is that the touchscreen 3 is touched at two different predetermined positions. These two predetermined positions may according to an embodiment be touched simultaneously or according to another embodiment be touched one after another in a predetermined sequence and within a predetermined time interval.
According to an embodiment, the device is configured to automatically enter into the sleep mode after a predetermined period of inactivity of the user interface and to return to the active mode when the touch sensitive component is touched in a predetermined area followed by a predetermined movement over the touch sensitive component. The predetermined area is small relative to the touch sensitive area of said touch sensitive component, to reduce the chance that the touch in this area is accidental. The predetermined movement can be one of a group of predetermined movement patterns or shapes. An example of such a predetermined movement is an L- shaped sliding movement along the edges of the touch sensitive component (such as a touchscreen) .
According to another embodiment (not shown) the mobile phone includes a motion sensor and the condition for returning to the active mode from the sleep mode is the detection of a predetermined movement pattern by the motion sensor.
According to another embodiment (not shown) the mobile phone includes a touch sensitive user interface component that is difficult to touch inadvertently. In this embodiment the condition for returning to the active mode from the sleep mode is the touch of this specially placed touch sensitive component.
Fig. 4 is a flow chart of a control method in accordance with an embodiment of the invention. The method starts at block 410 in the active mode. Following block 410, the control method proceeds to block 412 where the timer is reset.
Subsequently, the timer is started in block 414. After the start of the timer the process checks if the user interface has been active, for example by checking if the touch screen 3 has been touched in block 416. If the touchscreen has been touched the process returns to block 412, resets the timer and starts the timer again in block 414.
If the touch sensitive device is not touched, the process moves to block 418 and checks if the first threshold tl is exceeded. If this is not the case, the process returns to block 416. If the first threshold tl is exceeded, the process moves to block 420, changes to the transition mode and signals a mode change to the user, for example by dimming the backlighting.
Subsequently, the process moves to block 422 and checks whether the timer exceeds the second threshold t2. If this is not the case, the process moves to block 424 to determine whether the touch sensitive device has been touched.
If the touch sensitive device is touched, the process moves back to block 410, returns to the active mode and subsequently resets the timer in block 412. If the touch sensitive device has not been touched in block 424 the process returns to block 422.
If the timer exceeds the second threshold t2 in block 422 the process moves on to block 426, enters the sleep mode and disables the touch sensitive device. In this step the process may also turn off the backlighting of the touchscreen completely in order to save on the battery.
Subsequently, the process moves to block 428 and checks whether an unlock condition is met. If the unlock condition is not met the process remains in block 428 until an unlock condition is met. When an unlock condition is met, the process moves back to block 410, returns to the active mode and subsequently resets the timer in block 412.
The various aspects of the invention described above can be used alone or in various combinations. The invention is preferably implemented by a combination of hardware and software, but can also be implemented in hardware or software. The invention can also be embodied as computer readable code on a computer readable medium. Furthermore, although a scrolling feature is described, it should be noted that a number entry feature is not the limitation and that the touchpad may be used to manipulate other features. For example, the touchscreen may be used to adjust the volume control in an audio application. In addition, the touchscreen may be used to advance to frames in a movie editing application. The touchscreen may also be used in video game applications.
The invention has numerous advantages. Different embodiments or implementations may yield one or more of the following advantages. It should be noted that this is not an exhaustive list and there may be other advantages which are not described herein. One advantage of the invention is that a user is alerted of an upcoming change to a sleep mode. Another advantage of the invention is that the user has an opportunity to activate the user interface when an automatic entry into sleep mode is imminent for avoiding an automatic entry into the sleep mode. Yet another advantage of the invention is that it allows for the unlocking of a user interface by moving the electronic device in a predetermined movement pattern. Yet another advantage of the invention is that it allows for the unlocking of user interface by touching a touch sensitive user interface component at two separate predetermined positions.
Although the present invention has been described in detail for purpose of illustration, it is understood that such detail is solely for that purpose, and variations can be made therein by those skilled in the art without departing from the scope of the invention.
For example, although the invention has been described in terms of a mobile phone, it should be appreciated that the invention may also be applied to other types of electronic devices, such as cameras, video recorders, music players, palmtop computers and the like. Moreover, certain aspects of the invention are not limited to handheld devices. For example, the touchpad may also be used in other computing devices such as a laptop computer. The touchpad may also be used as a stand-alone input device that connects to a desktop or portable computer. It should also be noted that there are many alternative ways of implementing the methods and apparatuses of the present invention. For example, although the touchscreen has been described in terms of being actuated by a finger, it should be noted that other objects may be used to actuate in some cases. For example, a stylus or other object may be used in some configurations of the touchpad.
The term "comprising" as used in the claims does not exclude other elements or steps. The term "a" or "an" as used in the claims does not exclude a plurality. The single processor or other unit may fulfill the functions of several means recited in the claims.

Claims

CLAIMS :
1. An electronic device having a user interface comprising at least one touch sensitive user input device, said electronic device having at least an active mode wherein said at least one touch sensitive user input device input is enabled, a sleep mode wherein said at least one touch sensitive user input device input is disabled and a transition mode wherein the user interface signals that an automatic change from the active mode to the sleep mode is imminent.
2. An electronic device according to claim 1, wherein said sleep mode is automatically entered after a first predetermined period of inactivity of the user interface.
3. An electronic device according to claim 2, wherein the transitional mode is automatically entered from the active mode after a second predetermined period of inactivity of the user interface that is shorter than said first predetermined period of inactivity of the user interface, said electronic device indicates the entry into said transitional mode via the user interface.
4. An electronic device according to claim 2, wherein said at least one touch sensitive input device has normal backlighting in said active mode and dimmed backlighting in said transitional mode.
5. An electronic device according to claim 4, wherein said at least one touch sensitive user input device is enabled in said transitional mode.
6. An electronic device according to claim 4 or 5, wherein said backlighting is deactivated in the sleep mode .
7. An electronic device according to any of claims 1 to 4, further comprising a display screen with display screen backlighting, said display screen backlighting being active in said active mode and said display screen backlighting being inactive in said sleep mode.
8. An electronic device according to claim 7, wherein said display screen backlighting is dimmed or deactivated in said transitional mode.
9. An electronic device according to any of claims 3 to
8, wherein said electronic device is configured to return to the active mode from said transition mode when said touch sensitive device is touched.
10. An electronic device according to any of claims 1 to
9, wherein said electronic device is configured to return to the active mode from said sleep mode when a predetermined condition is met.
11. An electronic device according to claim 10, wherein said electronic device is a communication terminal and wherein said predetermined condition is an incoming communication event.
12. An electronic device according to claim 10, wherein said electronic device has a mechanical key and wherein said predetermined condition is fulfilled when said mechanical key is pressed.
13. An electronic device according to claim 10, wherein said electronic device has a motion sensor and wherein said predetermined condition is fulfilled when said electronic device is moved in accordance with a predetermined pattern.
14. An electronic device according to claim 10, wherein said electronic device wherein said electronic device is provided with a difficult to reach touch sensitive user input device in a location that is difficult to touch inadvertently, said difficult to reach touch sensitive user input device being enabled in the sleep mode and said predetermined condition being fulfilled when said difficult to reach touch sensitive user input device is touched.
15. An electronic device according to claim 10, wherein said electronic device comprises at least two housing parts that are moveable relative to one another, and wherein said predetermined condition is fulfilled when said housing parts change position in a predetermined way.
16. An electronic device having a user interface with at least one touch sensitive component and a motion sensor, said electronic device having at least an active mode and a sleep mode, wherein said device is configured to automatically enter into the sleep mode after a predetermined period of inactivity of the user interface and to return to the active mode when the motion sensor detects that the electronic device is moved in accordance with a predetermined pattern.
17. An electronic device according to claim 16, wherein the electronic device is ready to receive user input in the active mode and wherein touch input is disabled in the sleep mode.
18. An electronic device having a user interface with at least one touch sensitive component, said electronic device having at least an active mode and a sleep mode, wherein said device is configured to automatically enter into the sleep mode after a predetermined period of inactivity of the user interface and to return to the active mode when the touch sensitive component is touched at two predetermined positions.
19. An electronic device according to claim 18, wherein said two predetermined positions need to be touched simultaneously in order to return to the active mode.
20. An electronic device according to claim 18, wherein said two predetermined positions need to be touched in a predetermined sequence within a given time interval.
21. An electronic device having a user interface with at least one touch sensitive component, said electronic device having at least an active mode and a sleep mode, wherein said device is configured to automatically enter into the sleep mode after a predetermined period of inactivity of the user interface and to return to the active mode when the touch sensitive component is touched in a predetermined area followed by a predetermined movement over the touch sensitive component.
22. An electronic device according to claim 21, wherein the predetermined area is small relative to the touch sensitive area of said touch sensitive component.
23. An electronic device according to claim 21 or 22, wherein said predetermined movement is one of a group of predetermined movement patterns or shapes.
24. A method for controlling the operating status of an electronic device that is provided with a user interface that includes a touch sensitive component, said method comprising:
running a timer in an active mode in which the touch sensitive component is enabled,
resetting said timer upon activity of the user interface,
changing to a transition mode with said touch sensitive component still being active and said user interface signaling the change to the transition mode when said timer reaches a first threshold,
keeping said timer running in said transition mode and resetting said timer upon activity of the user interface, and
changing to a sleep mode in which said touch sensitive component is disabled when said timer reaches a second threshold that is higher than said first threshold.
25. A method for controlling an electronic device having a user interface with at least one touch sensitive component and a motion sensor, said electronic device having at least an active mode wherein the touch sensitive component is enabled and a sleep mode wherein the touch sensitive component is disabled, said method comprising:
automatically entering into the sleep mode after a predetermined period of inactivity of the user interface, and
returning to the active mode when the motion sensor detects that the electronic device is moved in accordance with a predetermined pattern.
26. A method for controlling an electronic device having a user interface with at least one touch sensitive component, said electronic device having at least an active mode wherein the touch sensitive component is enabled and a sleep mode wherein the touch sensitive component is disabled, said method comprising:
automatically entering into the sleep mode after a predetermined period of inactivity of the user interface, and
returning to the active mode when the touch sensitive component is touched at two predetermined positions.
27. A computer readable medium including at least computer program code for use in a mobile electronic apparatus that is provided with a user interface that includes a touch sensitive component, said computer readable medium comprising:
computer program code for running a timer in an active mode in which the touch sensitive component is enabled,
computer program code for resetting said timer upon activity of the user interface,
computer program code for changing to a transition mode with said touch sensitive component still being active and said user interface signaling the change to the transition mode when said timer reaches a first threshold,
computer program code for keeping said timer running in said transition mode and resetting said timer upon activity of the user interface, and
computer program code for changing to a sleep mode in which said touch sensitive component is disabled when said timer reaches a second threshold that is higher than said first threshold.
28. A computer readable medium including at least computer program code for controlling an electronic device having a user interface with at least one touch sensitive component and a motion sensor, said electronic device having at least an active mode wherein the touch sensitive component is enabled and a sleep mode wherein the touch sensitive component is disabled, said computer readable medium comprising: software code for automatically entering into the sleep mode after a predetermined period of inactivity of the user interface, and
software code for returning to the active mode when the motion sensor detects that the electronic device is moved in accordance with a predetermined pattern.
29. A computer readable medium including at least computer program code for controlling an electronic device having an user interface with at least one touch sensitive component, said electronic device having at least an active mode wherein the touch sensitive component is enabled and a sleep mode wherein the touch sensitive component is disabled, said computer readable medium comprising:
software code for automatically entering into the sleep mode after a predetermined period of inactivity of the user interface, and
software code for returning to the active mode when the touch sensitive component is touched at two predetermined positions.
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