| US 7,554,487 B2 | ||
| Method and system for determining time in a satellite positioning system | ||
| Charles Abraham, Los Gatos, Calif. (US); Sergi Podshivalov, San Jose, Calif. (US); and Frank van Diggelen, San Jose, Calif. (US) | ||
| Assigned to Broadcom Corporation, Irvine, Calif. (US) | ||
| Filed on Mar. 26, 2007, as Appl. No. 11/728,391. | ||
| Application 11/728391 is a continuation of application No. 10/265090, filed on Oct. 04, 2002, granted, now 7,196,660. | ||
| Application 10/265090 is a continuation in part of application No. 10/190745, filed on Jul. 08, 2002, granted, now 6,734,821, filed on May 11, 2004. | ||
| Application 10/190745 is a continuation in part of application No. 09/715860, filed on Nov. 17, 2000, granted, now 6,417,801, filed on Jul. 09, 2002. | ||
| Prior Publication US 2007/0171125 A1, Jul. 26, 2007 | ||
| Int. Cl. G01S 5/14 (2006.01) | ||
| U.S. Cl. 342—357.02 [342/357.09] | 13 Claims |
| 1. A method of receiving an estimate of time in a satellite signal receiver comprising:
receiving a broadcast of an estimate of time from a server at the satellite signal receiver;
compensating for error of a clock in the satellite signal receiver using the estimate of time;
designating the output of the compensated clock as an a-priori estimate of absolute time; and
employing the a-priori estimate of absolute time in a mathematical model that updates the a-priori estimate of absolute time
to compute a position of the satellite signal receiver and an absolute time.
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