US20030001774A1 - Position privacy in an electronic device - Google Patents
Position privacy in an electronic device Download PDFInfo
- Publication number
- US20030001774A1 US20030001774A1 US10/065,120 US6512002A US2003001774A1 US 20030001774 A1 US20030001774 A1 US 20030001774A1 US 6512002 A US6512002 A US 6512002A US 2003001774 A1 US2003001774 A1 US 2003001774A1
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- United States
- Prior art keywords
- reporting
- electronic device
- prevents
- telephone
- privacy
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/0009—Transmission of position information to remote stations
- G01S5/0018—Transmission from mobile station to base station
- G01S5/0036—Transmission from mobile station to base station of measured values, i.e. measurement on mobile and position calculation on base station
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/0009—Transmission of position information to remote stations
- G01S5/0045—Transmission from base station to mobile station
- G01S5/0054—Transmission from base station to mobile station of actual mobile position, i.e. position calculation on base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/04—Protocols specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
Definitions
- the present invention defines a system for enhancing a privacy in enhancement in an electronic device with automatic position location detection.
- Modern electronic devices often include automatic position location detection technology.
- the modern cellular phone may include a satellite positioning system such as a GPS device.
- Other cellular phones referred to as a WAP phones, also automatically keep track of the users position.
- FIG. 1 shows an electronic device, which can be a wap phone, regular cellular phone, or any other electronic device 100 .
- the device is shown with electronic circuitry including electronic processor 110 which processes signals from both GPS device 115 , and from a codec 120 .
- the processor also controls an RF device 125 .
- the electronic device automatically determines its position. In this embodiment, it does so by communicating with a constellation of global position detecting satellites 130 , for automatic determination of position.
- the electronic device may also communicate with the server 140 , such as to a base station.
- the electronic device may communicate its determined position to the server. This may be done, for example, for emergency purposes. In the case of a WAP device, this may be done simply to monitor the position of the cellular phone.
- the server may output the position, shown as 150 .
- the present application defines a device which enhances privacy in such a system. Specifically, the present application teaches a device which selectively prevents the electronic device from transmitting its position. This hence allows selection of an enhanced privacy mode.
- FIG. 1 shows are block diagram of an electronic device with a built-in automatic position location detection system
- FIG. 2 shows a first embodiment of a privacy enhancing device for an electronic element
- FIGS. 3A and 3B show a passive version of the privacy enhancing device using an RF blocking technique
- FIG. 4 shows an active jammer device which actively produces a signal to prevent the reporting of position.
- the first embodiment is shown in FIG. 2.
- the electronic device is a portable telephone such as a cellular phone.
- a portable phone 200 has a normal user interface 205 , and other structure such as display, etc.
- the device also includes a positioning device 210 .
- a position detection block control 220 is provided. This is an actuation mechanism, such as a button which can be pressed to deactivate the function of the positioning device 210 .
- the unit's normal position forms an enable signal 225 which enables the position detector 210 , allowing the position detector to determine its position, and report that position to a remote source, such as a base station.
- a remote source such as a base station.
- an indicator 225 is illuminated, indicating the privacy mode has been entered.
- the enable signal is removed, thereby preventing position detector 210 from reporting its position.
- a concern is that some users, either hackers or others with more aura of authority, may use this system in a way which determines position surreptitiously, e.g., even when the button is placed on override.
- law-enforcement officials might use this system to keep track of someone without their knowledge.
- One way to do this might be to fake an emergency call or the like. Doing this, however, may have serious privacy implications.
- a manufacturer includes a back door into the system, that back door might be used to determine the position of a person, without their authority or knowledge.
- a test module 250 can be used to test the degree of privacy associated with the electronic device.
- This test module is connectable to the server 260 . It also runs a software layer 255 which can be updated via channel 270 , e.g., over the Internet.
- the test module 250 in operation, communicates with a service over the internet.
- the service employs experts to research and store the latest and most up-to-date way of improperly obtaining position in such a system. This is available via update 270 from the Internet. This may be carried out as a subscription service, in a similar way to the operations currently done to update virus definitions.
- the Internet returns ways of hacking the position detection prevention, which can hence be used by the test module to evaluate the privacy provided by the actuation 220 .
- the test module sends a request for position location to the phone 200 , using the best available techniques.
- the phone returns information, and this information is evaluated by the server 260 .
- Server 260 returns an evaluation of the operation to the test module 250 . This can provide a user with an indication of the level of privacy they have obtained.
- FIGS. 3A and 3B Another embodiment is shown in FIGS. 3A and 3B.
- This embodiment may be most usable with a satellite positioning system in a telephone.
- a GPS system often requires a separate antenna shown as 300 .
- the separate antenna may be very sensitive to reception. For example, while cellular telephones can often be used indoors, corresponding GPS devices may not be usable in the same situations.
- each separate telephone type will have a GPS antenna 300 placed in a specified location. There are relatively few telephone types in common use, usually less than 50 types. This system finds, for each telephone type, where the GPS antenna will be placed.
- the device 350 is made of an RF absorbing or reflecting material such as metal.
- the device is also made in way which allows it to be temporarily attached to the telephone, e.g., by clipping on to the phone.
- the device may fit on both sides of the telephone 310 and 320 and wrap around the telephone to cover areas adjacent the antenna on both of the surfaces.
- the cover 350 covers both sides of the antenna 300 , and therefore prevents GPS operation while the cover is clamped into place. In this way, privacy can be effectively temporarily enhanced.
- FIGS. 3A and 3B show two different places where the shield could be attached; but it should be understood that the shield could be attached in many different places.
- GPS in a portable phone is for use in an emergency.
- the GPS device allows the emergency authorities to determine the user's precise location.
- the cover can be maintained in place during all operations other than emergencies. During emergencies, the cover can be removed. But once the cover is removed, the position of the electronic device can be automatically detected, as usual.
- FIGS. 3A and 3B may not work with certain phones.
- An alternative system is shown in FIG. 4.
- an active jammer module 400 is provided.
- the jammer module either supplants or fools the system into obtaining false position information.
- the jammer module may provide false satellite information, e.g., indicating a false satellite position.
- Satellite positioning system information is often provided in broad spectrum noise.
- the jammer 400 may produce broad spectrum noise, which includes information indicative of three satellites, but which is transmitted at a sufficiently low power to be receivable only at a very short range.
- the jammer can also be attached using attachment clips 404 . The attachment can place the transmitter of the jammer in close proximity with the satellite positioning system antenna.
- the jammer information can produce outputs that indicate a false location, for example. Similar operations can be carried out with WAP phones. In a WAP phone, for example, the system may override the carrier, or tell the carrier false information about where the phone is located. This may include providing false triangulation information into the system or the like.
Abstract
A privacy enhancement device for electronic device such as a cellular telephone. In one mode, the cellular telephone operates in its normal mode, whereby its position can be detected by either wap techniques or by GPS techniques. In a second mode of operation, the wap/GPS operation is overridden, so that the position cannot be detected.
Description
- This application is a continuation of U.S. patent application Ser. No. 09/690,001 filed Oct. 16, 2000.
- The present invention defines a system for enhancing a privacy in enhancement in an electronic device with automatic position location detection.
- Modern electronic devices often include automatic position location detection technology. For example, the modern cellular phone may include a satellite positioning system such as a GPS device. Other cellular phones, referred to as a WAP phones, also automatically keep track of the users position.
- FIG. 1 shows an electronic device, which can be a wap phone, regular cellular phone, or any other electronic device100. The device is shown with electronic circuitry including
electronic processor 110 which processes signals from bothGPS device 115, and from acodec 120. The processor also controls anRF device 125. - The electronic device automatically determines its position. In this embodiment, it does so by communicating with a constellation of global
position detecting satellites 130, for automatic determination of position. The electronic device may also communicate with theserver 140, such as to a base station. The electronic device may communicate its determined position to the server. This may be done, for example, for emergency purposes. In the case of a WAP device, this may be done simply to monitor the position of the cellular phone. The server may output the position, shown as 150. - The present application defines a device which enhances privacy in such a system. Specifically, the present application teaches a device which selectively prevents the electronic device from transmitting its position. This hence allows selection of an enhanced privacy mode.
- These and other aspects of the invention will be described in detail with reference to the accompanying drawings, wherein:
- FIG. 1 shows are block diagram of an electronic device with a built-in automatic position location detection system;
- FIG. 2 shows a first embodiment of a privacy enhancing device for an electronic element;
- FIGS. 3A and 3B show a passive version of the privacy enhancing device using an RF blocking technique; and
- FIG. 4 shows an active jammer device which actively produces a signal to prevent the reporting of position.
- The first embodiment is shown in FIG. 2. In this embodiment, the electronic device is a portable telephone such as a cellular phone. However, it should be understood that other electronic devices, such as computers, personal digital assistants, or any other device which is capable of communicating in any way, may use similar techniques to those disclosed herein. A
portable phone 200 has anormal user interface 205, and other structure such as display, etc. The device also includes apositioning device 210. In this embodiment, a positiondetection block control 220 is provided. This is an actuation mechanism, such as a button which can be pressed to deactivate the function of thepositioning device 210. The unit's normal position forms an enablesignal 225 which enables theposition detector 210, allowing the position detector to determine its position, and report that position to a remote source, such as a base station. When the button is in its override position, anindicator 225 is illuminated, indicating the privacy mode has been entered. In this privacy-enhanced state, the enable signal is removed, thereby preventingposition detector 210 from reporting its position. - A concern, however, is that some users, either hackers or others with more aura of authority, may use this system in a way which determines position surreptitiously, e.g., even when the button is placed on override. For example, law-enforcement officials might use this system to keep track of someone without their knowledge. One way to do this might be to fake an emergency call or the like. Doing this, however, may have serious privacy implications.
- If a manufacturer includes a back door into the system, that back door might be used to determine the position of a person, without their authority or knowledge.
- A
test module 250 can be used to test the degree of privacy associated with the electronic device. This test module is connectable to theserver 260. It also runs asoftware layer 255 which can be updated viachannel 270, e.g., over the Internet. Thetest module 250, in operation, communicates with a service over the internet. The service employs experts to research and store the latest and most up-to-date way of improperly obtaining position in such a system. This is available viaupdate 270 from the Internet. This may be carried out as a subscription service, in a similar way to the operations currently done to update virus definitions. The Internet returns ways of hacking the position detection prevention, which can hence be used by the test module to evaluate the privacy provided by theactuation 220. - The test module sends a request for position location to the
phone 200, using the best available techniques. The phone returns information, and this information is evaluated by theserver 260.Server 260 returns an evaluation of the operation to thetest module 250. This can provide a user with an indication of the level of privacy they have obtained. - Another embodiment is shown in FIGS. 3A and 3B. This embodiment may be most usable with a satellite positioning system in a telephone. In this kind of phone, both sets of electronics—the GPS and the codec—may use a common processor. However, a GPS system often requires a separate antenna shown as300. The separate antenna may be very sensitive to reception. For example, while cellular telephones can often be used indoors, corresponding GPS devices may not be usable in the same situations. Moreover, each separate telephone type will have a GPS antenna 300 placed in a specified location. There are relatively few telephone types in common use, usually less than 50 types. This system finds, for each telephone type, where the GPS antenna will be placed. The
device 350 is made of an RF absorbing or reflecting material such as metal. The device is also made in way which allows it to be temporarily attached to the telephone, e.g., by clipping on to the phone. For example, the device may fit on both sides of thetelephone cover 350 covers both sides of the antenna 300, and therefore prevents GPS operation while the cover is clamped into place. In this way, privacy can be effectively temporarily enhanced. FIGS. 3A and 3B show two different places where the shield could be attached; but it should be understood that the shield could be attached in many different places. - One of the stated uses of GPS in a portable phone is for use in an emergency. When the user dials 911, the GPS device allows the emergency authorities to determine the user's precise location. In order to allow this, the cover can be maintained in place during all operations other than emergencies. During emergencies, the cover can be removed. But once the cover is removed, the position of the electronic device can be automatically detected, as usual.
- The system of FIGS. 3A and 3B may not work with certain phones. An alternative system is shown in FIG. 4. In this phone, an
active jammer module 400 is provided. The jammer module either supplants or fools the system into obtaining false position information. For example, the jammer module may provide false satellite information, e.g., indicating a false satellite position. - Satellite positioning system information is often provided in broad spectrum noise. The
jammer 400 may produce broad spectrum noise, which includes information indicative of three satellites, but which is transmitted at a sufficiently low power to be receivable only at a very short range. In the system of FIG. 4, the jammer can also be attached using attachment clips 404. The attachment can place the transmitter of the jammer in close proximity with the satellite positioning system antenna. - The jammer information can produce outputs that indicate a false location, for example. Similar operations can be carried out with WAP phones. In a WAP phone, for example, the system may override the carrier, or tell the carrier false information about where the phone is located. This may include providing false triangulation information into the system or the like.
- Other modifications are possible and are within the disclosed invention.
Claims (50)
1.An apparatus, comprising:
an electronic device having a position detection module therein which determines a position of said electronic device and reports information indicative of said position of said electronic device to a remote object; and an override control, which includes a manual actuating mechanism and which, in response to manual actuation of said actuating mechanism produces a signal state that prevents said position detection module from determining its position, but which allows other parts of said electronic device to operate.
2.An apparatus as in claim 1, wherein said position detection module is a satellite positioning system receiver.
3.A method, comprising:
operating a cellular phone in a first mode in which its position can be detected by an automatic position sensing device and automatically reported to a remote location; and
responsive to an action by a user of a specific type, operating said cellular phone in a second, privacy enhanced mode, in which cellular phone functions can be used to place and/or receive calls, but its position can not be automatically detected by said automatic position sensing device.
4.A method as in claim 3 , further comprising testing said cellular phone while operating in said second, privacy enhanced mode, to determine whether privacy is actually enhanced.
5.A method as in claim 4 , wherein said testing comprises using a network based service to test whether privacy is enhanced.
6. A method as in claim 5 , wherein said network based service updates software that carries out said testing.
7.A method as in claim 3 , wherein said action by said user of the specified type comprises actuating an actuation element on the cellular telephone.
8.A method as in claim 7 , further comprising, responsive to actuating said actuating element, interfering with said position being reported to said remote location.
9.An apparatus, comprising:
an electronic device having a position detection module therein which determines a position of said electronic device and reports information indicative of said position of said electronic device to a remote object; and an override control, which includes a manual actuating mechanism and which, in response to manual actuation of said actuating mechanism produces a signal state that prevents said position detection module from reporting said information about its position, but which allows other parts of said electronic device to operate, wherein said override control operates in response to said manual actuation to produce a signal that prevents said position detection module from reporting any information, in any mode of said electronic device, until said manually deactuated.
10.An apparatus, comprising:
a portable telephone, including:
(1)telephone electronics enabling telephone communication;
(2) a position detection module therein which enables determining a position of said portable telephone as a determined position; and
(3) a reporting device which reports information indicative of said determined position of said portable telephone to a remote object; and
a manually operable override control, associated with said portable telephone, operating in response to a manual operation, to prevent said reporting device from reporting any information indicative of the determined position, but allowing said telephone electronics to continue to operate.
11.An apparatus as in claim 10, wherein said override control prevents said position detection module from determining said determined position.
12.An apparatus as in claim 1 0, wherein said operating said override control allows said position detection module to determine said determined position, but prevents said reporting device from reporting said information indicative of said determined position.
13.An apparatus as in claim 10, wherein said position detection module includes a satellite positioning system device.
14.An apparatus as in claim 10, wherein said override control includes a button.
15.An apparatus as in claim 14, wherein said override control produces an enable signal state which enables the position detector to determine its position and report that position to said remote object.
16.An apparatus as in claim 30 , wherein said remote object includes a base station associated with a telephone system.
17.An apparatus as in claim 10, further comprising an indicator which indicates whether the override control is in a state which prevents said reporting device from reporting.
18.An apparatus as in claim 17, wherein said indicator includes an optical indicator.
19.An apparatus as in claim 18, wherein said optical indicator includes an indicator which can be selectively illuminated.
20.An apparatus, comprising:
an electronic device having a first electronics module, and a position detection module therein which determines a position of said electronic device and produces a signal for reporting information indicative of said position of said electronic device to a remote object; and
a position reporting control, which includes a manual control, which is manually actuatable by a user, and which, in response to a first specified actuation by a user, prevents any reporting of said information about position until a second specified actuation by a user, but which allows said first electronics module to continue to operate after said first specified actuation and before said second specified actuation.
21.An apparatus as in claim 20, wherein said manual control includes a button which commands circuitry in said telephone to stop performing certain operations when in a first state produced by said first specified actuation.
22.An apparatus as in claim 20, wherein said first specified actuation prevents said position detection module from determining said determined position.
23.An apparatus as in claim 20, wherein said first specified actuation prevents said position reporting device from reporting information indicative of the determined position.
24.An apparatus as in claim 20, wherein said first electronics module includes communication circuitry, which continues to operate after said first specified actuation.
25.An apparatus as in claim 24, wherein said apparatus includes a portable telephone, and said first electronics module includes circuitry associated with said portable telephone, including circuitry for communicating with a base station associated with the telephone.
26.An apparatus as in claim 20, further comprising an indicator, which indicates a state of said first specified actuation.
27.An apparatus as in claim 26, wherein said indicator is an optical indicator.
28.An apparatus, comprising:
a cellular telephone, having a cellular electronics module, and a position detection module which determines a position of said cellular telephone and produces a signal for reporting information indicative of said position of said cellular telephone to a remote object;
a position reporting control, which includes a manual control, which is manually actuable by a user, and which, in response to a first specified actuation by a user, prevents any reporting of said information about position until a second specified actuation by a user, but which allows said cellular electronics module to continue to operate; and
an optical indicator, which produces an optical indication which indicates that said first specified actuation has been carried out, and that a privacy enhanced mode has been entered.
29.An apparatus as in claim 28, wherein said first specified actuation prevents said position detection module from determining said determined position.
30.An apparatus as in claim 28, wherein said first specified actuation prevents a reporting device from reporting information indicative of the determined position.
31.A method of operating a cellular telephone, comprising:
allowing, in a first mode of operation, automatic reporting of a position of said cellular telephone, and allowing communication between said cellular telephone and a cellular telephone base station; and
responsive to a manual actuation, allowing a second mode of operation which prevents any automatic reporting of said position of said cellular telephone, but which still allows communications between said cellular telephone and said cellular telephone base station.
32.A method as in claim 31 , wherein said automatic reporting in said first mode of operation comprises automatic detection of a position of said electronic device via satellite positioning.
33.A method as in claim 32 , wherein said second mode of operation prevents said position module from detecting the position via satellite positioning.
34.A method as in claim 32 , wherein said second mode of operation allows said position module to detect a position via satellite positioning, but prevents reporting of the detected position.
35.A method as in claim 31 , further comprising indicating that said reporting is blocked, using an optical indicator.
36.A method, comprising:
operating a cellular phone in a first mode in which its position can be automatically reported to a remote location; and
responsive to an action by a user of a specific type, operating said cellular phone in a second, privacy enhanced mode, in which cellular phone functions can be used to place and/or receive calls, but its position can not be automatically reported to said remote location; and
wherein said action by said user comprises attaching an external blocking device to said cellular phone.
37.A system, comprising:
a test module, associated with an electronic device, and operable to test an amount of privacy for the electronic device.
38.A system as in claim 37 , wherein said tested module tests whether said electronic device is currently reporting a position.
39.A system as in claim 37 , wherein said electronic device includes a wireless communication element.
40.A system as in claim 37 , wherein said electronic device includes a cellular telephone.
41.A system as in claims 39, wherein said electronic device communicates using said wireless communication element to obtain updates to test said amount of privacy.
42.A system as in claim 41 , wherein said updates include information about latest ways to improperly obtain a position of the wireless communication element.
43.A system as in claim 37 , wherein said test module attempts to obtain certain information, and evaluates a success at obtaining said information to test said amount of privacy.
44.A system as in claim 43 , wherein said certain information includes position information of the electronic device.
45.A method, comprising:
testing an electronic device to determine its privacy, and reporting a result of said testing.
46.A method as in claim 45 , wherein said determine privacy comprises determining if said electronic device is automatically reporting its position.
47.A system as in claim 37 , further comprising using said electronic device for wireless communication.
48.A system as in claim 47 , who further comprising updating a way that testing is carried out using said wireless communication medium.
49.A system as in claim 48 , wherein said testing is carried out using requests that attempt to violates the users privacy, and evaluating whether the electronic device responds to said requests.
50.A system as in claim 49 , wherein said updating comprises updating new attempts to violate the users privacy.
Priority Applications (1)
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US10/065,120 US20030001774A1 (en) | 2000-10-16 | 2002-09-18 | Position privacy in an electronic device |
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US09/690,001 US6473031B1 (en) | 2000-10-16 | 2000-10-16 | Position privacy in an electronic device |
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US8717231B1 (en) | 2000-10-16 | 2014-05-06 | Platt Technology Investments Llc | Position privacy in an electronic device |
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US20110212703A1 (en) * | 2002-10-24 | 2011-09-01 | Motorola, Inc. | System and method for e911 location privacy protection |
US8774828B2 (en) | 2002-10-24 | 2014-07-08 | Motorola Mobility Llc | System and method for E911 location privacy protection |
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