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:
Oct. 04, 2016
Filed:
Dec. 04, 2014
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Inventor:
Syuji Yamato, Nagaokakyo, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/72 (2006.01); H03H 9/00 (2006.01); H03H 9/05 (2006.01); H03H 9/64 (2006.01);
U.S. Cl.
CPC ...
H03H 9/725 (2013.01); H03H 9/0028 (2013.01); H03H 9/0576 (2013.01); H03H 9/0085 (2013.01); H03H 9/6459 (2013.01);
Abstract
A first filter channel with superior attenuation characteristics for transmission signals and is less susceptible to influence of transmission signals inputted to a transmission SAW filter device, is disposed closer to a transmission terminal, whereas a second filter channel with poor attenuation characteristics in a transmission band and is more susceptible to the influence of transmission signals inputted to the transmission SAW filter device, is disposed farther from a transmission terminal to improve isolation characteristics in a differential mode of a duplexer.