Title:
INFORMATION CODE, CODE GENERATION METHOD, AND CODE READING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/062844
Kind Code:
A1
Abstract:
An information code (CQ2) is obtained by combining a public code (Cd1) and a secret code (Cd2). The public code (Cd1) and the secret code (Cd2) record information by using an array of white cells (Cew) and black cells (Ceb). The information code (CQ2) includes an information recording region (60) and a color reference region (70). The information recording region (60) includes a plurality of types of combined cells (CeL) having different modes of the white cells (Cew) and the black cells (Ceb). The information recording region (60), by using the plurality of types of combined cells (CeL), records the public information recorded in the public code (Cd1) and the secret information recorded in the secret code (Cd2). The color reference region (70) is provided at a predetermined position and indicates each mode of the combined cells (CeL).
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Inventors:
NAKAO KOICHI (JP)
OKUMURA MITSUO (JP)
OKABE TATSUYA (JP)
OKUMURA MITSUO (JP)
OKABE TATSUYA (JP)
Application Number:
PCT/JP2023/030948
Publication Date:
March 28, 2024
Filing Date:
August 28, 2023
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
G06K19/06; G06K7/12; G06K7/14
Foreign References:
| JP2021196762A | 2021-12-27 | |||
| JP2010271812A | 2010-12-02 |
Attorney, Agent or Firm:
YAHAGI Kazuyuki et al. (JP)
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