Digitizing encoded symbol reading device
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United States of America Patent
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-
Jan 4, 2000
Issued Date -
N/A
app pub date -
Feb 10, 1997
filing date -
Mar 25, 1993
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An encoded symbol reading device capable of reading and decoding a tessellated symbol. A detector detects an optical image formed by the encoded symbol and outputs a signal corresponding to the optical image. The signal is compared with threshold values and a 1-bit data value is output. The 1-bit data values are converted into an n-bit data value which is stored in a memory. The threshold values are also stored in memory and are obtained by detecting an optical image formed by a surface having a predetermined color.
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