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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.:

US 10236862 B1

PDFFull Text
Date of Patent:
Mar. 19, 2019

Filed:

Nov. 30, 2016

Duplexer device

Applicant:

Wisol Japan Co., Ltd., Kawasaki-shi, Kanagawa, JP;

Inventors:

Takahiro Sato, Kawasaki, JP;

Kensei Uehara, Kawasaki, JP;

Motoyuki Tajima, Kawasaki, JP;

Assignee:

WISOL JAPAN CO, LTD., Kawasaki-Shi, Kanagawa, JP;

Attorney:

LRK Patent Lawfirm

Primary Examiner:

Barbara Summons

Int. Cl.
CPC ...
H03H 9/72 (2006.01); H03H 9/64 (2006.01); H04B 1/10 (2006.01); H04L 5/14 (2006.01); H01P 1/20 (2006.01); H03H 9/02 (2006.01); H01P 5/19 (2006.01);
U.S. Cl.
CPC ...
H03H 9/725 (2013.01); H01P 1/2002 (2013.01); H03H 9/02559 (2013.01); H03H 9/6406 (2013.01); H03H 9/6409 (2013.01); H03H 9/6423 (2013.01); H04B 1/1036 (2013.01); H04L 5/14 (2013.01); H01P 5/19 (2013.01);
Abstract

A problem is improved in which a plurality of duplexers has to be used if at least one of a transmission band and reception band for a handheld terminal partially overlaps a frequency band used in another communication system. A duplexer device includes a duplexer configured to include an antenna terminal, a transmission terminal and a reception terminal and to have a specific transmission band and reception band and a band-stop filter connected to at least one of the antenna terminal, the transmission terminal and the reception terminal via a switch and configured to suppress some of at least one of the specific transmission band and reception band in response to the switching of the switch.

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