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Patent Searching and Data


Title:
DISCRIMINATION SYSTEM
Document Type and Number:
Japanese Patent JP2000275336
Kind Code:
A
Abstract:

To obtain a discrimination system in which a transmission-reception part can surely discriminate the existence of a specific resonance sheet without disconnecting the resonance circuit of a resonance sheet.

This discrimination system is constituted by providing a resonance tag (a means to be detected) 1 which resonates so as to generate radio waves when it exists in a field in which radio waves at a resonant frequency are emitted. In addition, the discrimination system is constituted by providing a transmission-reception part which transmits transmission radio waves at a prescribed frequency to the field which receives radio waves generated from the means 1, to be detected, existing in the field and which discriminates that the specific resonance target 1 exists in the field. In this case, the resonance tag 1 which is mounted on footwear is constituted by providing a resonance sheet 11 in which a resonace circuit is installed at an insulator. In addition, the resonance tag 1 is constituted by providing a pair of elastic sheets 12a, 12b whose faces 12c on one side are arranged so as to come into close contact with one face 11a and the other face 11b of the resonance sheet 11 and which relax the concentration of a stress on the resonace sheet 11.


Inventors:
NAKAO TOSHIAKI
WANAKA TAKESHI
OKI KAZUFUMI
AKIBA YASUSHI
OWAKU KUMI
Application Number:
JP8274999A
Publication Date:
October 06, 2000
Filing Date:
March 26, 1999
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
G08B13/24; G01S13/74; G07C9/00; (IPC1-7): G01S13/74; G07C9/00; G08B13/24
Attorney, Agent or Firm:
Junji Ando (3 others)