Title:
COMMUNICATION SYSTEM, INFORMATION RECORDING MEDIUM, AND INDIRECT COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/155483
Kind Code:
A1
Abstract:
The disclosed communication system, information recording medium, and indirect communication device allow communication via electromagnetic induction, allow the use of low-cost information recording media, improve communication stability when information recording media is misaligned or rotated, and provide high IC-chip tolerance to flexion in information recording media. An information recording medium (3-1) has: an IC chip (32-1) that is capable of communication via electromagnetic induction; and a pair of thin conductive sheets (21-1) connected to the IC chip (32-1). A relay medium (2-1) has thin conductive sheets (31-1) and a loop antenna (22-1), with one of said thin conductive sheets (31-1) connected to one end of the loop antenna (22-1) and the other thin conductive sheet (31-1) connected to the other end of the loop antenna (22-1). A read/write device (1-1) has a loop antenna (12-1).
Inventors:
AKIYAMA, Tomoya (1-1-1, Ichigaya Kagacho, Shinjuku-k, Tokyo 01, 〒1628001, JP)
秋山 知哉 (〒01 東京都新宿区市谷加賀町一丁目１番１号 大日本印刷株式会社内 Tokyo, 〒1628001, JP)
秋山 知哉 (〒01 東京都新宿区市谷加賀町一丁目１番１号 大日本印刷株式会社内 Tokyo, 〒1628001, JP)
Application Number:
JP2011/063025
Publication Date:
December 15, 2011
Filing Date:
June 07, 2011
Export Citation:
Assignee:
DAI NIPPON PRINTING CO., LTD. (1-1-1, Ichigaya Kagacho Shinjuku-k, Tokyo 01, 〒1628001, JP)
大日本印刷株式会社 (〒01 東京都新宿区市谷加賀町一丁目１番１号 Tokyo, 〒1628001, JP)
AKIYAMA, Tomoya (1-1-1, Ichigaya Kagacho, Shinjuku-k, Tokyo 01, 〒1628001, JP)
大日本印刷株式会社 (〒01 東京都新宿区市谷加賀町一丁目１番１号 Tokyo, 〒1628001, JP)
AKIYAMA, Tomoya (1-1-1, Ichigaya Kagacho, Shinjuku-k, Tokyo 01, 〒1628001, JP)
International Classes:
G06K17/00; G06K19/07; G06K19/077; H04B5/02
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki et al. (Sapia Tower, 1-7-12 Marunouchi, Chiyoda-k, Tokyo 05, 〒1000005, JP)
Claims: