Length Measurement Device And System
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Mar 12, 2020
app pub date -
Jul 23, 2018
filing date -
Jul 23, 2018
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Abstract
A length measurement device comprises: a tape which is wound on a reel received in a case, one end of which is pulled out of the case so as to measure the length of an object, and which has a barcode formed on one surface thereof; a first measurement unit for recognizing the barcode on the tape so as to generate a first measurement value of the length along which the tape is pulled out of the case; a second measurement unit for sensing a rotation angle of the reel so as to generate a second measurement value of the length along which the tape is pulled out of the case; and a control unit for making the first measurement value and the second measurement value mutually compensate for each other so as to convert same into the pulled-out length information of the tape.
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