Method for adjusting a pseudo-range model
November 21, 2021. 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 References 3715758 Method and apparatus for transmitting messages to and from remote locations Method and circuitry for symbol timing and frequency offset estimation in time division multiple access radio systems GPS tracking system Wide area differential GPS reference system and method GPS receiver using a radio signal for improving time to first fix GPS receiver and method for processing GPS signals Method and apparatus for satellite positioning system based time measurement GPS receivers and garments containing GPS receivers and methods for using these GPS receivers Robust real-time wide-area differential GPS navigation InventorsApplicationNo. 990479 filed on 11/21/2001US Classes:701/213, Using Global Positioning System (GPS)342/358, With satellite signal correction701/214Means to improve accuracy of position or locationExaminersPrimary: Nguyen, Tan T.Assistant: Tran, Dalena Attorney, Agent or FirmForeign Patent References
International ClassesH04Q 007/20G01S 005/02 G06F 165/00 AbstractA method and apparatus for locating mobile device over a broad coverage area using a wireless communications link that may have large and unknown latency. The apparatus comprises at least one mobile device, a reference network, a position server, a wireless carrier, and a location requester. The mobile device is in communication with the wireless carrier and receives global positioning system (GPS) signals from a plurality of satellites in the GPS satellite constellation. The reference network is coupled to the position server and provides GPS data. The mobile receiver receives GPS signals, performs rudimentary signal processing and transmits the processed signals to the wireless carrier. The wireless carrier passes the signals on to the position server. The position server processes the mobile receiver's GPS data and the reference network ephemeris data to identify the location of the mobile receiver. The location is sent to the location requester.Field of SearchUsing Global Positioning System (GPS)Means to improve accuracy of position or location NAVIGATION Determining range without range measurement Space orbits or paths Using Global Positioning Satellite (GPS or Glonass) With satellite signal correction With transmission of location-indicative information to or from a remote station With position indicating Using differential correction Position indicating (e.g., triangulation) Synchronous satellite Location display Multiple base stations VEHICLE POSITION INDICATION | |
