Location scale and optical reading sensor for reading the location scale
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United States of America Patent
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-
Jul 30, 1996
Grant Date -
N/A
app pub date -
Oct 7, 1994
filing date -
Apr 7, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A location scale and an optical reading sensor for reading the location scale. The location scale comprises bars with a first edge and a second edge, wherein either the first edges or the second edges are located at regular intervals to form an incremental scale. To provide both incremental data and absolute data on the same scale, the bars are of at least two different widths, and any n successive bars on the scale form a unique individual code indicating the absolute location of those n bars on the scale.
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