Absolute encoder
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United States of America Patent
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May 26, 1992
Grant Date -
N/A
app pub date -
Mar 7, 1991
filing date -
Jul 7, 1989
priority date (Note) -
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Abstract
A sequence of random numbers of a desired length is produced using an algorithm for shifting a binary code M bits and adding 0 or 1 so that all produced codes are different from each other. An absolute encoder of a desired resolution is provided using such a sequence of random numbers. Where a slit pattern of M-series random number codes is employed, a circuit for generating a pattern comprising a combination of the M-series random number codes and 0s is employed to provide an absolute encoder having a resolution of 2.sup.k.
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