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:
Jan. 22, 2019
Filed:
Feb. 16, 2017
Applicant:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Inventor:
Tetsuo Saji, Tokyo, JP;
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/16 (2006.01); H04B 1/48 (2006.01); H03H 9/54 (2006.01); H03H 9/64 (2006.01); H04L 5/14 (2006.01); H03H 9/60 (2006.01); H04L 5/00 (2006.01); H04W 84/04 (2009.01);
U.S. Cl.
CPC ...
H04B 1/48 (2013.01); H03H 9/542 (2013.01); H03H 9/605 (2013.01); H03H 9/6403 (2013.01); H03H 9/6483 (2013.01); H04L 5/001 (2013.01); H04L 5/14 (2013.01); H03H 2210/012 (2013.01); H03H 2210/025 (2013.01); H04W 84/042 (2013.01);
Abstract
A filter circuit includes: a variable filter that is connected between a common terminal and a node and configured to change a passband thereof; a receive switch connected between a receive terminal, from which a reception signal in a first band is output, and the node; and a transmit switch connected between a transmit terminal, to which a transmission signal in a second band different from the first band is input, and the node.