发明名称 |
Dithering control of oscillator frequency to reduce cumulative timing error in a clock |
摘要 |
A method for correcting time error in an oscillator operated clock according to one aspect of the invention includes at selected times determining at least one of a time error in the clock and a frequency difference between the oscillator and a reference oscillator by detecting a time reference signal. A change in the at least one of the time error and the frequency difference between a first one and a second one of the detecting the time reference signals is determined. A frequency of the oscillator is adjusted so as to substantially cancel a cumulative time error between the second one of the detecting the time reference signal and a selected detecting the time reference signal. |
申请公布号 |
US2009257321(A1) |
申请公布日期 |
2009.10.15 |
申请号 |
US20080082788 |
申请日期 |
2008.04.14 |
申请人 |
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发明人 |
SCOTT GARY LEE;DRYER JOSEPH ERNEST |
分类号 |
G04B18/00 |
主分类号 |
G04B18/00 |
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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