Encoder and method of outputting measurement value of position or angle
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United States of America Patent
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Sep 11, 2018
Grant Date -
Oct 9, 2014
app pub date -
Mar 31, 2014
filing date -
Apr 3, 2013
priority date (Note) -
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Abstract
An encoder for outputting a measurement value of a position or angle of a scale in accordance with a command signal transmitted with a cycle, includes: a detector configured to perform detection of a signal from the scale and output a detection signal; and a processor configured to perform generation of data representing a position or angle of the scale based on the detection signal, perform correction of the data based on a change amount of the position or angle along with movement of the scale in a delay time till receiving of a subsequent command signal after the detection, and perform outputting of the corrected data. The processor is configured to perform processing including the generation and correction in accordance with receiving of the command signal, and perform a plurality of the processing in parallel.
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