Reporting of Last Acquired Position During Gap of Satellite Reception for GNSS Systems
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United States of America Patent
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Issued Date -
Aug 30, 2012
app pub date -
Aug 26, 2011
filing date -
Aug 26, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A GNSS receiver includes a radio frequency module and an antenna for acquiring and tracking signals from various satellites and demodulating them to an intermediate frequency or a baseband signal. The receiver also includes a processing unit for processing the demodulated signals to obtain a first position, velocity, and time (PVT fix) data and displays the data to a user. The receiver may include a memory unit for storing the obtained PVT fix. The receiver may further include one or more sensors for detecting a motion of the receiver and provide an index to the processing unit that determines a next position of the receiver based on the index during a coverage gap. The one or more sensors may include an accelerometer, a compass, or a combination thereof.
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