发明名称 |
Digital phase detector for periodically alternating signals |
摘要 |
A method of determining a phase between a first signal and a second signal is provided. The first signal and the second signal correspond to signal transmissions between a first device and a second device. The second device periodically moves along a translational axis with respect to the first device in a first direction or a second direction. The method includes assigning a positive or negative value to each of a plurality of positive and negative zero crossings of the first signal. The method also includes counting a numerator and a denominator counter for a predetermined interval. The method also includes calculating a raw phase between the first signal and the second signal by dividing a value of the numerator by a corresponding value of the denominator after the predetermined interval.
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申请公布号 |
US2005111606(A1) |
申请公布日期 |
2005.05.26 |
申请号 |
US20030721942 |
申请日期 |
2003.11.25 |
申请人 |
JOSSELSON ROBERT H.;MATHESON LESTER G.;CORDRAY DAVID G. |
发明人 |
JOSSELSON ROBERT H.;MATHESON LESTER G.;CORDRAY DAVID G. |
分类号 |
G01B9/02;G01R25/00;H03D13/00;(IPC1-7):H03L7/06 |
主分类号 |
G01B9/02 |
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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