Patent ID: 9165230
Filing Date: 2015-10-20
Classification: G06K

Abstract:
1. A two-dimensional information code delineated from a background so as to have a code region, comprising: a plurality of light-color modules exhibiting a reflectance property of light color when either light of a first wavelength band or light of a second wavelength band is radiated to the information code, the second wavelength band being different in wavelengths from the first wavelength band; a plurality of dark-color modules exhibiting a reflectance property of dark color when either the light of the first wavelength band or the light of the second wavelength band is radiated to the information code; and a covering formed to cover a specified partial area of the code region, wherein the specified partial area is either a predetermined area that disables decoding of the information code when the predetermined area is shielded from the light of the first wavelength band or a predetermined area that includes at least part of the plurality of light-color modules, and the covering is transmissive to the light of the second wavelength band and exhibits a reflectance property of dark color to the light of the first wavelength band.