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. 22, 2021
Filed:
Jan. 23, 2018
Beijing Bigcode Technology Co., Ltd., Beijing, CN;
Beijing Sigone Investment Co., Ltd., Beijing, CN;
Wei Shen, Beijing, CN;
Siping Wang, Beijing, CN;
BEIJING BIGCODE TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
Disclosed is an apparatus for generating a composite two-dimensional code, comprising: a two-dimensional code encoding module, a two-dimensional code pattern generating module, a hidden information encoding module, a hidden information pattern generating module, a recoding region setting module, an pattern compositing module, and an output module. The two-dimensional code encoding moduleconverts the inputted two-dimensional code information into a binary codeword sequence to generate two-dimensional code coding information; the two-dimensional code pattern generating modulegenerates a two-dimensional code pattern based on the two-dimensional code coding information; the hidden information encoding moduleconverts the hidden information into a binary codeword sequence to generate recoding information; the recoding region setting modulesets, in the two-dimensional code pattern, a recoding region for encoding the hidden information; the hidden information pattern generating modulegenerates a hidden information coding pattern formed by dark-colored blocks and light-colored blocks based on the recoding information; and the pattern composing moduleadjusts a block distribution in the recoding region of the two-dimensional code pattern based on the hidden information coding pattern so as to encode the hidden information.