Patent
Location systems for handheld electronic devices
Ruben Caballero,Robert J. Hill +1 more
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TLDR
In this paper, a portable electronic device is used to measure the Earth's magnetic field and how the device is being moved to estimate the position of the device, which can be used to compute a current geographic location.Abstract:
An electronic device such as a portable electronic device is provided. The device may have wireless circuitry such as a global satellite navigation system receiver for receiving global satellite navigation system signals and for producing corresponding global satellite navigation system data. The global satellite navigation system data may include information on the current position of the portable electronic device. The portable electronic device may also have one or more sensors that are used to gather data in addition to the global satellite navigation system data. The sensors may include accelerometers and other devices capable of determining how the portable electronic device is oriented with respect to the Earth's magnetic field and how the device is being moved. When the device is moved, the movement and resulting change in orientation may be used in conjunction with the global satellite navigation system data to compute a current geographic location.read more
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Patent
Computational systems and methods for locating a mobile device
Paramvir Bahl,Douglas C. Burger,Ranveer Chandra,Matthew G. Dyor,William H. Gates,Roderick A. Hyde,Pablos Holman,Muriel Y. Ishikawa,Jordin T. Kare,Royce A. Levien,Richard T. Lord,Robert W. Lord,Mark A. Malamud,Craig J. Mundie,Nathan P. Myhrvold,Tim Paek,John D. Rinaldo,Desney S. Tan,Clarence T. Tegreene,Charles Whitmer,Lowell L. Wood,Victoria Y.H. Wood,Lin Zhong +22 more
TL;DR: In this article, the authors described systems and methods relating to means for detecting an indication of a person within a specified proximity to at least one mobile device; and means for presenting a location of the at least mobile device at least partially based on the indication of the person within the specified proximity.
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TL;DR: In this paper, a method of improving position determination of a device using locally measured movement is proposed, where a first position fix of a Global Navigation Satellite System (GNSS) receiver system of the device is accessed.
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Concurrent dual processing of pseudoranges with corrections
Richard Rudow,Robert Wold,Venkateswaran Kasirajan,Nicholas C. Talbot,Peter Van Wyck Loomis,Shawn D. Weisenburger,James M. Janky +6 more
TL;DR: In this article, a first process and a second process are executed concurrently by one or more hardware processors located in the cellular device and outside of a Global Navigation Satellite System (GNSS) chipset embedded in a cellular device.
References
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