Computing network path delays so accurate absolute time can be forwarded from a server to a client
Patent 6941109 Issued on September 6, 2005. Estimated Expiration Date: 
February 19, 2022. 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.
February 19, 2022. 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 ReferencesClient-server based remote locator device Distributed satellite position system processing and application network Satellite navigation receiver and method Patent #: 6437734 InventorsAssigneeApplicationNo. 10079251 filed on 02/19/2002US Classes:455/13.2, With synchronizing of satellites or system455/13.1, With plural repeater or relay systems455/9, Monitoring342/357.02, With accuracy enhancing342/357.06, Using Global Positioning Satellite (GPS or Glonass)342/357.09, With transmission of location-indicative information to or from a remote station370/400Having a plurality of nodes performing distributed switchingExaminersPrimary: Trinh, SonnyAssistant: Doan, Phuoc International ClassH04B007/19AbstractA navigation-satellite receiver support data network comprises a server connected to the Internet to provide initialization information to clients for faster cold starts. The server includes a GPS receiver that provides for tracking of a constellation of navigation satellites. When a client is started cold, time and frequency are initially unknown to it. Test messages are sent back and forth over the Internet and a path delay time is computed from the average of the quickest transit times. This yields the offset time between the server's time system and the client's time system. The server sends current time information to the client, and the computed path delay is added. The client can then compute correct time from the server and path delay information, and thereby select much sooner which satellites are correct to search.Field of SearchWith plural repeater or relay systemsWith synchronizing of satellites or system Monitoring Space satellite Space satellite Synchronized stations With transmission of location-indicative information to or from a remote station Using Global Positioning Satellite (GPS or Glonass) GPS receiver signal processing Having a plurality of nodes performing distributed switching Processing of address header for routing, per se Contention resolution for output With priority resolution | |
