Title:
RFID TAG COMMUNICATION METHOD AND RFID TAG COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2006/114811
Kind Code:
A1
Abstract:
The intensity of a communication radio wave, which is propagated between antennas housed in reader/writers (11a, 11b) and RFID tags (10a, 10b), at positions of the RFID tags (10a, 10b) is changed. When the intensity of the communication radio wave is changed, communication is performed between the reader/writers (11a, 11b) and the FRID tags (10a, 10b). Thus, unnecessary communication with RFID tags is eliminated and communication with the target RFID tags (10a, 10b) is surely performed.
Inventors:
OBANA HARUO (JP)
MIKI TAKESHI (JP)
ONO ICHIROU (JP)
NAKAMURA TAKAO (JP)
NISHIDA HIROTAKA (JP)
NAKAMURA NORIHIRO (JP)
HIROTA NAOHIRO (JP)
MIKI TAKESHI (JP)
ONO ICHIROU (JP)
NAKAMURA TAKAO (JP)
NISHIDA HIROTAKA (JP)
NAKAMURA NORIHIRO (JP)
HIROTA NAOHIRO (JP)
Application Number:
PCT/JP2005/006376
Publication Date:
November 02, 2006
Filing Date:
March 31, 2005
Export Citation:
Assignee:
AJINOMOTO KK (JP)
FUJITSU LTD (JP)
OBANA HARUO (JP)
MIKI TAKESHI (JP)
ONO ICHIROU (JP)
NAKAMURA TAKAO (JP)
NISHIDA HIROTAKA (JP)
NAKAMURA NORIHIRO (JP)
HIROTA NAOHIRO (JP)
FUJITSU LTD (JP)
OBANA HARUO (JP)
MIKI TAKESHI (JP)
ONO ICHIROU (JP)
NAKAMURA TAKAO (JP)
NISHIDA HIROTAKA (JP)
NAKAMURA NORIHIRO (JP)
HIROTA NAOHIRO (JP)
International Classes:
H04B5/02; G06K17/00; H04B1/59
Foreign References:
| JP2003141464A | 2003-05-16 | |||
| JP2003296666A | 2003-10-17 | |||
| JP2005005876A | 2005-01-06 |
Other References:
ANDO K.: "Musen IC Tag wa Dokomade Yomerunoka", NIKKEI BYTE, no. 253, 22 May 2004 (2004-05-22), pages 72 - 83, XP003006190
Attorney, Agent or Firm:
Sakai, Hiroaki (Kasumigaseki Building 2-5, Kasumigaseki 3-chom, Chiyoda-ku Tokyo, JP)
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