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Title:
TWO-DIMENSIONAL CODE PATTERN, TWO-DIMENSIONAL CODE PATTERN DISPLAY DEVICE, AND ITS READING DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/145317
Kind Code:
A1
Abstract:
It is possible to provide a two-dimensional code pattern which can perform accurate and rapid read, and a two-dimensional code pattern display device, and its reading device. The two-dimensional code pattern includes: a boundary pattern for turning ON or OFF all the pixels arranged in the end columns and the all the pixels arranged in the end rows among blocks of pixels arranged in the N columns and M rows; a rotation detection pattern in which the pixels belonging to a predetermined second pixel group in each of the blocks are turned ON or OFF according to a lighting pattern capable of detecting a rotation angle during a block read; and an information pattern in which the pixels belonging to the first quadrant and the third quadrant of the block are turned ON or OFF according to first information data and the pixels belonging to the second quadrant and the fourth quadrant of the block are turned ON or OFF according to second information data.

Inventors:
NOGUCHI, Ryoji (Pioneer Corporation 6-1-2, Fujimi, Tsurugashima-sh, Saitama 88, 3502288, JP)
野口 良司 (〒88 埼玉県鶴ヶ島市富士見6丁目1番2号 パイオニア株式会社 総合研究所内 Saitama, 3502288, JP)
NOHARA, Manabu (Pioneer Corporation 6-1-2, Fujimi, Tsurugashima-sh, Saitama 88, 3502288, JP)
野原 学 (〒88 埼玉県鶴ヶ島市富士見6丁目1番2号 パイオニア株式会社 総合研究所内 Saitama, 3502288, JP)
AKIMOTO, Takayuki (Pioneer Corporation 6-1-2, Fujimi, Tsurugashima-sh, Saitama 88, 3502288, JP)
Application Number:
JP2007/062116
Publication Date:
December 21, 2007
Filing Date:
June 15, 2007
Export Citation:
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Assignee:
Pioneer Corporation (4-1 Meguro 1-chome, Meguro-ku Tokyo, 54, 1538654, JP)
パイオニア株式会社 (〒54 東京都目黒区目黒1丁目4番1号 Tokyo, 1538654, JP)
NOGUCHI, Ryoji (Pioneer Corporation 6-1-2, Fujimi, Tsurugashima-sh, Saitama 88, 3502288, JP)
野口 良司 (〒88 埼玉県鶴ヶ島市富士見6丁目1番2号 パイオニア株式会社 総合研究所内 Saitama, 3502288, JP)
NOHARA, Manabu (Pioneer Corporation 6-1-2, Fujimi, Tsurugashima-sh, Saitama 88, 3502288, JP)
野原 学 (〒88 埼玉県鶴ヶ島市富士見6丁目1番2号 パイオニア株式会社 総合研究所内 Saitama, 3502288, JP)
International Classes:
G06K19/06; G06F3/042; G06K7/10; G06K19/07
Foreign References:
JP2002082763A2002-03-22
JPH10187912A1998-07-21
JPH11201797A1999-07-30
JP2002082763A2002-03-22
Other References:
See also references of EP 2040200A1
Attorney, Agent or Firm:
FUJIMURA, Motohiko (FUJIMURA PATENT BUREAU, Togeki-Bldg. 1-1, Tsukiji 4-chom, Chuo-ku Tokyo 45, 1040045, JP)
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