发明名称 |
Vehicle locating system using GPS |
摘要 |
A vehicle locating system for directing a user to a remotely-located vehicle comprises a vehicle-mounted location unit and a personal fob. The vehicle-mounted location unit includes a first global positioning receiver for receiving satellite location signals which operates at a duty cycle sufficient to maintain predetermined aiding data. The vehicle-mounted location unit processes vehicle location data and further includes a first local data transceiver for transmitting the predetermined aiding data. The portable fob includes a second global positioning receiver for receiving the satellite location signals, wherein the second global positioning receiver operates substantially only when the user initiates a request for directions to the vehicle. The portable fob further includes a second local data transceiver for receiving the predetermined aiding data from the first local data transceiver. The portable fob processes fob location data in response to the predetermined aiding data. |
申请公布号 |
US7145507(B2) |
申请公布日期 |
2006.12.05 |
申请号 |
US20030737104 |
申请日期 |
2003.12.16 |
申请人 |
LEAR CORPORATION |
发明人 |
LUO YI;TANG OINGFENG;KING RONALD O.;LEMENSE THOMAS J. |
分类号 |
G01S19/14;B60R25/00;G01S1/00;G01S5/00;G01S19/51 |
主分类号 |
G01S19/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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