The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2020
Filed:
Oct. 17, 2018
Optoelectronics Co., Ltd., Warabi-shi, JP;
Takashi Ushiki, Warabi, JP;
OPTOELECTRONICS CO., LTD., Warabi-Shi, JP;
Abstract
A two-dimensional code includes: a first code symbol coding first information being a first valid information according to a first standard; a terminator pattern indicating an end of the valid information according to the first standard; and a second code symbol arranged after the terminator pattern in a region in which valid information can be arranged according to the first standard, and coding, according to a second standard different from the first standard, verification data encrypted using a private key, the verification data being for verifying correctness of the first valid information. The verification data may be signature data included in non-output data.