QUALCOMM Assigned Patent for FFT Based Acquisition Techniques for Satellite Based Navigation Systems
(Targeted News Service Via Acquire Media NewsEdge) By Targeted News Service
ALEXANDRIA, Va., March 2 -- QUALCOMM, San Diego, has been assigned a patent (8,384,592) developed by Philip Crary, Mission Viejo, Calif., and Qinfang Sun, Cupertino, Calif., for an "FFT based acquisition techniques for satellite based navigation systems."
The abstract of the patent published by the U.S. Patent and Trademark Office states: "A satellite navigation receiver receives a combination of radio frequency signals from satellites in satellite navigation systems and process the radio frequency signals to calculate an approximate current location of the satellite navigation receiver. Satellite acquisition plays an important part in identifying the current location of the satellite navigation receiver. Acquisition involves identifying the satellites in the satellite navigation that can be used to provide navigation information. Fast Fourier transform based acquisition involves using FFT and subsequently inverse FFT (IFFT) to correlate a coarse acquisition (C/A) code transmitted by a satellite with a C/A code locally generated on the GPS receiver to identify and acquire a transmitting satellite."
The patent application was filed on Sept. 30, 2009 (12/570,942). The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8,384,592.PN.&OS=PN/8,384,592&RS=PN/8,384,592
Written by Kusum Sangma; edited by Anand Kumar.
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