06400314 is referenced by 192 patents and cites 16 patents.

A precision carrier frequency signal for calibrating a local oscillator of a GPS receiver which is used to acquire GPS signals. The precision carrier frequency signal is used to calibrate the local oscillator such that the output of the local oscillator, which is used to acquire GPS signals, is modified by a reference signal generated from the precision carrier frequency signal. The GPS receiver locks to this precision carrier frequency signal and generates the reference signal. In another aspect of the invention, satellite almanac data is transmitted to a remote GPS receiver unit from a basestation via a communication link. The remote GPS receiver unit uses this satellite almanac data to determine approximate Doppler data for satellites in view of the remote GPS receiver unit.

Title
GPS receiver utilizing a communication link
Application Number
9/558692
Publication Number
6400314 (B1)
Application Date
April 25, 2000
Publication Date
June 4, 2002
Inventor
Norman F Krasner
San Carlos
CA, US
Agent
Bruce W Greenhaus
US
Charles D Brown
US
Philip R Wadsworth
US
Assignee
Qualcomm Incorporated
CA, US
IPC
H04B 7/185
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