Method and apparatus for reading label bar codes
作者： Nobufumi Tokura , Kazuhiro Suzuki , Sadao Nakanishi , Shinichiro Endo
DOI:
关键词: Speech recognition 、 Bar (music) 、 Signal 、 Code (cryptography) 、 Reading (computer) 、 Engineering
摘要: A method and apparatus for reading label bar codes in which a photoelectric signal representative of an optically scanned code is differentiated. The positive negative peaks the differentiated are detected, time intervals between measured by counter means to produce output signals label. multi-level threshold comparison technique used detect predict occurrence peaks.
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