ONE-DIMENSIONAL OR TWO-DIMENSIONAL INFORMATION CODE

摘要

PROBLEM TO BE SOLVED: To provide an optical one-dimensional or optical two-dimensional information code allowing a plurality of different physical property information signals to coexist on the same code, and the respective physical property information signals to be decoded as individual data.;SOLUTION: An information code according to the present invention is an information code having a composition structure, which is made virtually three-dimensional as an element of information display. The composition structure has information signal elements of two or more physical properties different in physical characteristic, and is formed of areas displaying different physical properties in one-dimensional or two-dimensional arrangement. In a physical property signal characteristic of a display area in this arrangement, the same code simultaneously incorporates, in a manner allowing decryption, two different physical property information signals including signal information of reflectance characteristic and signal information of wavelength characteristic, by combining: a lower layer information part being an information signal element multi-valued, at least binarized or larger; and an upper layer information part being an information signal element having wavelength signal characteristic of binarization or larger.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT