Using digital television broadcast signals to provide GPS aiding information
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United States of America Patent
Stats
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Apr 27, 2004
Grant Date -
Oct 30, 2003
app pub date -
Nov 12, 2002
filing date -
Apr 3, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A method, apparatus, and computer-readable media for providing satellite positioning system aiding information to a satellite positioning system receiver configured to determine the position of the satellite positioning system receiver using the satellite positioning system aiding information and the propagation time of a signal transmitted by a satellite in the satellite positioning system comprises providing the satellite positioning system aiding information; providing a digital television signal comprising a plurality of frames, each frame comprising a plurality of data segments; encoding the satellite positioning system aiding information as codewords; replacing data segments within the digital television signal with the codewords; and transmitting the digital television signal; wherein the satellite positioning system receiver receives the digital television signal and recovers the satellite positioning system aiding information.
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