Invention Grant
- Patent Title: Two-dimensional code having rectangular region provided with specific patterns to specify cell positions and distinction from background
- Patent Title (中): 具有矩形区域的二维码提供特定图案以指定单元格位置和与背景的区别
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Application No.: US13368614Application Date: 2012-02-08
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Publication No.: US08413909B2Publication Date: 2013-04-09
- Inventor: Hiroaki Mizukoshi , Masami Tanaka , Yuichi Ito , Hayato Kita , Takao Ushijima , Masahiro Hara
- Applicant: Hiroaki Mizukoshi , Masami Tanaka , Yuichi Ito , Hayato Kita , Takao Ushijima , Masahiro Hara
- Applicant Address: JP Tokyo
- Assignee: Denso Wave Incorporated
- Current Assignee: Denso Wave Incorporated
- Current Assignee Address: JP Tokyo
- Agency: Posz Law Group, PLC
- Priority: JP2008-083486 20080327; JP2008-226472 20080903
- Main IPC: G06K19/06
- IPC: G06K19/06

Abstract:
A two-dimensional code having a rectangular region is provided. In the rectangular region, there are code blocks composed of a plurality of cells, a first specific pattern specifying the positions of the cells, and a second specific pattern separating the code blocks from a background of the code. The first specific pattern is located at a specified corner of the rectangular region. The second specific pattern is located along one or more of first borders along which the first specific pattern is located, the first borders being part of the borders of the rectangular region. The code blocks include error-correction code blocks, which are located along second borders which are different from a border of the borders along which the second specific pattern is located. The second borders are part of the borders. Compressed data code blocks are also arranged in the same way as the error-correction code blocks.
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