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Title:
WIRELESS TAG COMMUNICATION SYSTEM, WIRELESS TAG COMMUNICATION EQUIPMENT AND WIRELESS TAG DETECTING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2006/070563
Kind Code:
A1
Abstract:
A wireless tag communication system by which an accurate position of a wireless tag, which is a communication target, can be easily detected. The wireless tag communication system includes a first wireless tag (14) provided at a position fixed to a prescribed reference position; a second wireless tag (16) movable from the reference position; and wireless tag communication equipment (12) for communicating information between the first wireless tag (14) and the second wireless tag (16). The wireless tag communication equipment (12) judges the position of the first wireless tag (14) to the reference position by communicating the information between the first wireless tag (14) and the second wireless tag (16), and judges the position of the wireless tag (16) to the reference position, based on the position of the first wireless tag (14). Therefore, even when the wireless tag communication equipment (12) moves from the reference position, the position of the second wireless tag (16) can be correctly detected from the relative positional relationship with first wireless tag (14).

Inventors:
OHASHI TSUYOSHI (JP)
NAGAI TAKUYA (JP)
FUKUI TOMOYASU (JP)
HIRATA HIRONORI (JP)
YAMADA SHIRO (JP)
TAKI KAZUNARI (JP)
MAEDA YOSHINORI (JP)
Application Number:
PCT/JP2005/022305
Publication Date:
July 06, 2006
Filing Date:
December 05, 2005
Export Citation:
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Assignee:
BROTHER IND LTD (JP)
OHASHI TSUYOSHI (JP)
NAGAI TAKUYA (JP)
FUKUI TOMOYASU (JP)
HIRATA HIRONORI (JP)
YAMADA SHIRO (JP)
TAKI KAZUNARI (JP)
MAEDA YOSHINORI (JP)
International Classes:
G01S13/74; G01V3/00; G01V15/00; G06K17/00; H04B1/59; H04B5/02
Domestic Patent References:
WO2002103645A22002-12-27
Foreign References:
JP2003185730A2003-07-03
JP2004007523A2004-01-08
JP2004120690A2004-04-15
JPH05281346A1993-10-29
JPH0244929A1990-02-14
Attorney, Agent or Firm:
Ikeda, Haruyuki (15-1 Meieki 3-chome Nakamura-k, Nagoya-shi Aichi 02, JP)
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