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Patent Searching and Data


Title:
WIRELESS COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/172186
Kind Code:
A1
Abstract:
This wireless communication device is provided with: an antenna which transmits/receives radio waves; a rectifying circuit which is connected to the antenna, and rectifies the radio waves received by the antenna to generate a voltage; an internal circuit which operates by means of the voltage generated by the rectifying circuit; and a switch circuit which is disposed so as not to contact the antenna, and operates on the basis of an output signal from the internal circuit, wherein the switch circuit includes a coupling wire and a switch element, and communication is performed by changing the impedance of the antenna through the operation of the switch element.

Inventors:
KARIYA, Yoshihiro (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
NOGUCHI, Kenta (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
SHIMIZU, Hiroji (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
MURASE, Seiichiro (Toray Industries Inc., 1-1, Sonoyama 1-chome, Otsu-sh, Shiga 58, 〒5208558, JP)
NISHIKAWA, Hisashi (9-8, Kitayamadai 2-chome, Konan-sh, Shiga 41, 〒5203241, JP)
Application Number:
JP2019/008406
Publication Date:
September 12, 2019
Filing Date:
March 04, 2019
Export Citation:
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Assignee:
TORAY INDUSTRIES, INC. (1-1 Nihonbashi-Muromachi 2-chome, Chuo-ku Tokyo, 66, 〒1038666, JP)
International Classes:
H04B5/02; H04B1/59
Domestic Patent References:
WO2017038319A12017-03-09
Foreign References:
JP2007074139A2007-03-22
JP2007104325A2007-04-19
JP2007058381A2007-03-08
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (Toranomon Mitsui Building, 8-1 Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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