Information code and information code reading apparatus

Information code and information code reading apparatus

An information code (10) includes a code region (20) composed of a plurality of light-color modules and a plurality of dark-color modules. The code region includes a specified area (24) which is preset and disables decoding of the information code by shielding light. The specified area is covered by...

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Hauptverfasser: Morimoto, Toshio, Itakura, Kazumi
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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creator Morimoto, Toshio
Itakura, Kazumi
description An information code (10) includes a code region (20) composed of a plurality of light-color modules and a plurality of dark-color modules. The code region includes a specified area (24) which is preset and disables decoding of the information code by shielding light. The specified area is covered by a covering (11) which exhibits a dark-color reflectance property when light of a first wavelength band is radiated thereto and which is transmissive to light of a second wavelength band. The first and second wavelength bands differ from each other. The light of the first wavelength band is visible light for example. Comparison between information code images imaged respectively on the light of the first and second wavelength bands makes it possible to determine whether the information code or an object with the information code is authentic.
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language eng ; fre ; ger
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subjects CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
title Information code and information code reading apparatus
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