发明名称 |
APPARATUS AND METHOD FOR REDUCING POWER CONSUMPTION IN A POSITION-DETERMINATION DEVICE |
摘要 |
A system for optimizing power use in a wireless communication device includes a selectively activated first timer which has a first level of power consumption and which generates a first time signal with a first level of accuracy. A selectively activated second timer has a second level of power consumption, less than the first level of power consumption, generates a second time signal with a second level of accuracy less than the first level of accuracy. A selectively activated position determination receiver has a third level of power consumption, and receives signals that permit position determination using the received signals and either the first or the second time signal. A selection processor selectively activates either the first or the second timer for use with the position determination receiver to optimize power consumption of the wireless communication device. |
申请公布号 |
EP1639839(A4) |
申请公布日期 |
2010.08.04 |
申请号 |
EP20040756385 |
申请日期 |
2004.06.28 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
ROH, MARK;RISTIC, BORISLAV |
分类号 |
H04B7/185;G01S1/00;H04B1/16;H04B1/38;H04M1/00;H04M11/04;H04Q |
主分类号 |
H04B7/185 |
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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