| US 7,577,526 B2 | ||
| Method for determining an initial position in a navigation system | ||
| Jin-Won Kim, Gyeonggi-do (Korea, Republic of); Moon-Pil Hyun, Suwon-si (Korea, Republic of); and Sung-Chul Yang, Suwon-si (Korea, Republic of) | ||
| Assigned to Samsung Electronics Co., Ltd, (Korea, Republic of) | ||
| Filed on Feb. 14, 2006, as Appl. No. 11/353,460. | ||
| Claims priority of application No. 10-2005-0012732 (KR), filed on Feb. 16, 2005. | ||
| Prior Publication US 2006/0184324 A1, Aug. 17, 2006 | ||
| Int. Cl. G01C 21/00 (2006.01); G01C 21/26 (2006.01) | ||
| U.S. Cl. 701—214 [701/213; 701/216] | 8 Claims |
| 1. A method for determining an initial position in a navigation system, comprising the steps of:
computing a total number of global positioning system (GPS) satellites from which a received GPS signal has intensity greater
than a threshold value;
computing respective numbers of GPS satellites located in each of two regions from the total number of the GPS satellites,
wherein the two regions are determined by dividing an area with respect to a road's centerline; and
determining an initial position of the navigation system according to a comparison result based on the respective numbers
of GPS satellites in each of the two regions.
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