Patent
Position location using broadcast television signals and mobile telephone signals
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TLDR
In this paper, a method, apparatus, and computer-readable media for determining the position of a user terminal comprises receiving at the user terminal a broadcast television signal from a television signal transmitter.Abstract:Â
A method, apparatus, and computer-readable media for determining the position of a user terminal comprises receiving at the user terminal a broadcast television signal from a television signal transmitter; determining a first pseudo-range between the user terminal and the television signal transmitter based on a known component of the broadcast television signal; receiving at the user terminal a mobile telephone signal from a mobile telephone base station; determining a second pseudo-range between the user terminal and the mobile telephone base station based on a known component of the mobile telephone signal; and determining a position of the user terminal based on the first and second pseudo-ranges, a location of the television signal transmitter, and a location of the mobile telephone base station; wherein the mobile telephone signal is selected from the group consisting of a EDGE (Enhanced Data Rates for Global System for Mobile Communications (GSM) Evolution) signal; a Code-Division Multiple Access 2000 (cdma2000) signal; and a Wideband Code-Division Multiple Access (WCDMA) signal.read more
Citations
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Patent
Client-server-based remote locator device
TL;DR: In this article, the location information of a remote sensor is transmitted from the server to the client and displayed at the client so that the user can identify the location of the remote sensor.
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Autonomous GPS Integrity Monitoring Using the Pseudorange Residual
TL;DR: This paper describes a method for autonomous GPS satellite failure detection and isolation (D/I) and presents results of applying the algorithm to measurement sets containing a biased measurement.
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TL;DR: In this paper, a worldwide network of differential GPS reference stations (NDGPS) continuously track the entire GPS satellite constellation and provide interpolations of reference station corrections tailored for particular user locations between the reference stations.
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Method and apparatus for providing navigational services in a wireless communication device
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