Method and apparatus for locating position of a GPS device
First Claim
1. A method of locating position of a Global Positioning System (GPS) device, comprising:
- generating a position request at a web portal;
receiving, in response to the position request, an approximate position of the GPS device at the web portal from a wireless carrier;
transmitting an initialization packet request for the approximate position to a server;
receiving an initialization packet at the web portal from the server, the initialization packet including a satellite orbit model configured for the approximate position;
forwarding the initialization packet to the GPS device via the wireless carrier;
determining pseudo-noise code phase information at the GPS device using the satellite orbit model in the initialization packet;
receiving the pseudo-noise code phase information at the web portal from the GPS device via the wireless carrier;
forwarding the pseudo-noise code phase information to the server;
computing position of the GPS device at the server using the pseudo-noise code phase information; and
receiving the position at the web portal from the server.
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Accused Products
Abstract
A method and apparatus for locating position of a GPS device is described. In one example, a wireless carrier is provided in communication with the GPS device. The wireless carrier is configured to provide an approximate position of the GPS device. A server is provided for generating an initialization packet having a satellite orbit model configured for the approximate position. The GPS device is configured to compute pseudo-noise code phase information using the satellite orbit model of the initialization packet. The server is configured to compute position of the GPS device using the pseudo-noise code phase information. A web portal is provided to facilitate communication among the GPS device, the wireless carrier, and the server. In one example, a position request is generated at the web portal. In another example, the position request is generated at the GPS device.
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Citations
24 Claims
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1. A method of locating position of a Global Positioning System (GPS) device, comprising:
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generating a position request at a web portal; receiving, in response to the position request, an approximate position of the GPS device at the web portal from a wireless carrier; transmitting an initialization packet request for the approximate position to a server; receiving an initialization packet at the web portal from the server, the initialization packet including a satellite orbit model configured for the approximate position; forwarding the initialization packet to the GPS device via the wireless carrier; determining pseudo-noise code phase information at the GPS device using the satellite orbit model in the initialization packet; receiving the pseudo-noise code phase information at the web portal from the GPS device via the wireless carrier; forwarding the pseudo-noise code phase information to the server; computing position of the GPS device at the server using the pseudo-noise code phase information; and receiving the position at the web portal from the server. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of locating position of a Global Positioning System (GPS) device, comprising:
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receiving a position request at a web portal from the GPS device via a wireless carrier; transmitting, in response to the position request, an initialization packet request to a server; receiving an initialization packet at the web portal from the server, the initialization packet including a satellite orbit model; forwarding the initialization packet to the GPS device via the wireless carrier; determining pseudo-noise code phase information at the GPS device using the satellite orbit model in the initialization packet; receiving the pseudo-noise code phase information at the web portal from the GPS device via the wireless carrier; forwarding the pseudo-noise code phase information to the server; computing position of the GPS device at the server using the pseudo-noise code phase information; receiving the position at the web portal from the server; and forwarding data comprising the position from the web portal to the GPS device via the wireless carrier. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A position location system, comprising:
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a Global Positioning System (GPS) device configured to determine pseudo-noise code phase information using a satellite orbit model of an initialization packet; a wireless carrier in wireless communication with the GPS device, the wireless carrier configured to provide an approximate position of the GPS device, forward the initialization packet to the GPS device, and receive the pseudo-noise code phase information from the GPS device; server configured to generate the initialization packet, the satellite orbit model therein being configured for the approximate position, the server further configured to compute a position of the GPS device using the pseudo-noise code phase information; and a web portal in communication with the wireless carrier and the server via the Internet, the web portal configured to generate a position request, receive the approximate position from the wireless carrier, forward an initialization packet request to the server along with the approximate position, receive the initialization packet from the server, forward the initialization packet to the wireless carrier, receive the pseudo-noise code phase information from the wireless carrier, forward the pseudo-noise code phase information to the server, and receive the position from the server. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A position location system, comprising:
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a Global Positioning System (GPS) device configured to generate a position request and determine pseudo-noise code phase information using a satellite orbit model of an initialization packet; a wireless carrier in wireless communication with the GPS device, the wireless carrier configured to receive the position request, forward the initialization packet to the GPS device, receive the pseudo-noise code phase information from the GPS device, and forward data comprising a position of the GPS device to the GPS device; server configured to generate the initialization packet having the satellite orbit model and compute the position of the GPS device using the pseudo-noise code phase information; and a web portal in communication with the wireless carrier and the server via the Internet, the web portal configured to forward an initialization packet request to the server, receive the initialization packet from the server, forward the initialization packet to the wireless carrier, receive the pseudo-noise code phase information from the wireless carrier, forward the pseudo-noise code phase information to the server, receive the position from the server, and forward the data comprising the position to the wireless carrier. - View Dependent Claims (21, 22, 23, 24)
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Specification