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:
Feb. 13, 2018
Filed:
Sep. 14, 2012
Applicant:
Hiroshi Bando, Tokyo, JP;
Inventor:
Hiroshi Bando, Tokyo, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/38 (2015.01); H04B 1/18 (2006.01); H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
H04B 1/18 (2013.01); H04B 1/0458 (2013.01);
Abstract
An antenna circuit which includes, a resonant circuit which is configured by at least first and second capacitors, and antenna coils; a transmitter-receiver circuit which has a transmission terminal and a reception terminal; and an adjustment circuit which adjusts an impedance between the resonant circuit and the transmitter-receiver circuit, in which a combination of capacitances of the first and second capacitors is set in a predetermined range of a composite capacitance of the first and second capacitors, and a signal from a terminal which is provided between the first and second capacitors is input to the reception terminal.