Length measuring instrument, code, and code conversion method
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United States of America Patent
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Oct 13, 2020
Grant Date -
May 23, 2019
app pub date -
Nov 1, 2018
filing date -
Nov 20, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A length measuring instrument for measuring length with a measure includes: a measure on which a code is printed, a plurality of patterns each allotted to a different number being arranged, each of the patterns having digits to which an N-notation number (N being 3 or greater) is allotted, each of the digits having a different color corresponding to the allotted numerical value, the patterns being arranged in ascending order or descending order, a Hamming distance between patterns adjacent to each other in an array direction being 1, an amount of change in numerical value at the same digit between the adjacent patterns being 1 in the code; a reading unit that optically reads patterns printed on the measure; and a measuring unit that measures a length of a measurement target from a result of the reading by the reading unit.
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