Patent ID: 8189923
Filing Date: 2012-05-29
Classification: G06K

Abstract:
1. An information input output method using a dot pattern, wherein an arbitrary rectangular area is defined as a block for defining information by a dot on a medium surface of a printed material, and said blocks are concatenated consecutively in an arbitrary direction from top to bottom and from left to right into a series of information chunks, the method comprising: generating a dot pattern in which concatenation information for concatenating the plurality of blocks is defined in a predetermined area inside the block by a dot; imaging said block groups constituting said dot pattern by an optical reading means; and reproducing information from said imaged data, wherein said optical reading means reads a predetermined block containing concatenation information consisting at least of a total number of blocks and a block sequence; generating a read table in which a read flag corresponding to said block sequence is set for the total number of blocks in a storage means of said optical reading means; and recognizing that a block group meaning a series of information chunks have been read when said optical reading means read surrounding blocks centered on said predetermined block and changed a flag of said read table.