Optical position sensor and position determination method
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United States of America Patent
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N/A
Issued Date -
Feb 14, 2002
app pub date -
Jul 6, 2001
filing date -
Jul 7, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of position measurement by processing at least two phase displaced signals and by selecting one signal for position measurement at a given position point. Specifically, the two phase displaced signals are quadrature signals and the selected signal has a more linear waveform slope relative to time at a given position point than the non-selected signal.
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