Digitizing encoded symbol reading device

Details Digitizing encoded symbol reading device Digitizing encoded symbol reading device

1997-02-10

2000-01-04

Au, Amelia

Image analysis

Image sensing

358474, 382274, G06K 936

Patent

active

060118806

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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JP Provisional Publication No. SHO 58-202662 together with English translation.

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