Patent ID: 7490779
Filing Date: 2009-02-17
Classification: G06K

Abstract:
1. A reading apparatus comprising: an exposure system that applies light to a code printed on a medium, the light having an infrared wavelength and a visible wavelength; a light receiving system that receives infrared light and visible light, which are the light reflected on the medium, to capture the code image with the infrared light and capture the code image with the visible light; a decoding section that reads a code from the code image captured with the infrared light and reads a code from the code image captured with the visible light; and a determination section, wherein when an authentic medium of the medium has a code image printed with an invisible and infrared-light absorbing material and a visible image is overlapped with the code image, if the decoding section can read the code by decoding the overlapped visible image captured with the visible light, then the determination section recognizes that the decoding section was able to read and decode the overlapped visible image captured with visible light and determines that the medium is counterfeit.