Title:
RFID SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/084821
Kind Code:
A1
Abstract:
An RFID system (2) comprising: an RFID tag (10) having a first magnetic antenna (30); an article (4) that houses the RFID tag (10) in a random orientation; a transfer path (60) that transfers the article (4); and a reader/writer (8) that communicates with the first magnetic antenna (30) via magnetic coupling, and has a second magnetic antenna (8a) disposed along the transfer path (60). The second magnetic antenna (8a) emits a magnetic flux while the transfer path (60) is transferring the RFID tag (10) in such a manner that the opening plane (8ba) of the second magnetic antenna (8a) and the RFID tag (10) face each other; and the distance between the RFID tag (10) and the second magnetic antenna (8a) in a direction tangential to the second magnetic antenna (8a) is less than the opening diameter (Lr) of the second magnetic antenna (8a).
Inventors:
OCHI TATSUYA (JP)
Application Number:
PCT/JP2019/021781
Publication Date:
April 30, 2020
Filing Date:
May 31, 2019
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G06K7/10; G06K19/077; H01Q7/00
Domestic Patent References:
| WO2011118379A1 | 2011-09-29 |
Foreign References:
| JP2014048861A | 2014-03-17 | |||
| JPH11203423A | 1999-07-30 | |||
| JP2005020360A | 2005-01-20 | |||
| JP2002057608A | 2002-02-22 |
Other References:
See also references of EP 3722988A4
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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