Method and apparatus for determining time for GPS receivers
April 24, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesNavigation system and method Method and apparatus for measuring elapsed time between an initiating event and a dependent event Null processing receiver apparatus and method 5117232 Vehicle location system Vehicle tracking system employing global positioning system (GPS) satellites Null processing and beam steering receiver apparatus and method Passive high accuracy geolocation system and method Precise universal time for vehicles Hybrid GPS/data line unit for rapid, precise, and robust position determination InventorAssigneeApplicationNo. 845545 filed on 04/24/1997US Classes:342/357.06, Using Global Positioning Satellite (GPS or Glonass)342/357.1Combined with telecommunicationExaminersPrimary: Blum, Theodore M.Attorney, Agent or FirmForeign Patent References
International ClassesH04B 007/185G01S 005/02 AbstractA method and apparatus of determining the time for a global positioning system receiver is disclosed. Timing signals derived from a communication system, such as cellular phone transmission signals, are received by a GPS receiver and decoded to provide accurate time information. The timing signals may be in the form of synchronized events marked by timing indicators, or as system time information. The timing signals in combination with satellite position signals received by the GPS receiver are used to determine the position of the GPS receiver.Other References
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