Code symbol reading apparatus, code symbol reading method and medium

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United States of America Patent

PATENT NO 9158955
APP PUB NO 20140034733A1
SERIAL NO

13940633

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Abstract

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A code symbol reading apparatus, that reads a code symbol on an object to be read by scanning the object, repeats trial to read the code symbol until the apparatus succeeds in reading, while changing a transmission frequency of a filter that processes a signal representing a light intensity variation obtained through the scan and in which transmittance depends on a frequency of the signal.

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Patent Owner(s)

Patent OwnerAddress
OPTOELECTRONICS CO LTDWARABI-SHI SAITAMA 335-0002

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duan, Zhihui Saitama, JP 21 151
Kimura, Kazuto Saitama, JP 11 188

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