The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2016
Filed:
Jul. 26, 2012
Applicant:
Shigeru Morimoto, Osaka, JP;
Inventor:
Shigeru Morimoto, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q 5/22 (2006.01); G08C 19/12 (2006.01); G08B 23/00 (2006.01); G08B 13/26 (2006.01); G06K 5/00 (2006.01); G06K 19/00 (2006.01); H04B 5/00 (2006.01); G06K 7/10 (2006.01); G06K 19/07 (2006.01);
U.S. Cl.
CPC ...
H04B 5/0062 (2013.01); G06K 7/10009 (2013.01); G06K 19/0715 (2013.01); G06K 19/0726 (2013.01); H04B 5/0075 (2013.01);
Abstract
An RFID tag includes an antenna coil configured to transmit and receive a signal through near field communication, a signal processing circuit configured to process the signal transmitted and received by the antenna coil, a capacitive element arranged in series between the antenna coil and the signal processing circuit, and a control unit configured to control the capacity value of the capacitive element. The control unit changes the capacity value of the capacitive element according to whether a voltage is applied from an external power supply.