发明名称 |
AMELIORATION OF FREQUENCY ERRORS AND/OR THEIR EFFECTS |
摘要 |
A radio communications device comprising location finding means for determining the device's location based on satellite signals, a crystal oscillator whose output frequency acts as a controlling reference for the location finding means and processing means for intermittently correcting the crystal oscillator such that the output frequency experiences jumps. The location finding means is arranged to take account of the jumps in the determination of the device's location.
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申请公布号 |
US2013113654(A1) |
申请公布日期 |
2013.05.09 |
申请号 |
US201213346439 |
申请日期 |
2012.01.09 |
申请人 |
COLLIER JAMES DIGBY YARLETT;NEWTON TIM;NORMARK PER-LUDVIG;RENSTROM THOMAS |
发明人 |
COLLIER JAMES DIGBY YARLETT;NEWTON TIM;NORMARK PER-LUDVIG;RENSTROM THOMAS |
分类号 |
G01S19/37;G01S19/42 |
主分类号 |
G01S19/37 |
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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