A system, apparatus and corresponding method by which to synchronize to a time reference a main module of a device--a main module such as global positioning system (GPS) receiver--using a cellular communication signal received by a cellular module also included in the device. To synchronize the main module to the reference time, the invention provides a method including the steps of: having the cellular module respond to the cellular communication signal by providing to a clock module of the main module a trigger pulse derived from the data component of the cellular communication signal, and also by providing to the main module information relating the trigger pulse to a universal time. The main module is then able to resolve a value for time based on the information relating the trigger pulse to a universal time and the trigger pulse.

 
Web www.patentalert.com

< Method and system for variable data rate transmission in RTK GPS survey system

< Portable terminal and GPS time keeping method

> Method and system for GPS bit-edge synchronization in the presence of burst-mode interference

> GPS reception method and GPS receiver

~ 00279