Method of timing calibration

Details Method of timing calibration Method of timing calibration

2006-11-28

2006-11-28

Beamer, Temica (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S456600, C455S456200, C455S012100, C455S013200, C455S423000, C455S427000, C342S357490

Reexamination Certificate

active

07142878

ABSTRACT:
Disclosed is a method for deriving accurate global positioning satellite (GPS) timing by calibrating frame boundaries to GPS timing. Time calibration is achieved by determining a time difference Δt between a reference GPS time (or pulse) and an nth frame boundary. The time difference Δt and a frame boundary identifier specifying the nth frame boundary are provided to a device equipped with a full or partial GPS receiver so that the GPS equipped device may synchronize itself to GPS timing. Upon synchronizing itself to GPS timing, the GPS equipped device may search for GPS signals using information provided by a geographical location server, e.g., WAG server.

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European Search Report, no date listed.

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