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. 24, 2006
Filed:
Apr. 08, 2004
Applicants:
Hiroki Watanabe, Ishikawa-ken, JP;
Masaru Yata, Ishikawa-ken, JP;
Inventors:
Hiroki Watanabe, Ishikawa-ken, JP;
Masaru Yata, Ishikawa-ken, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/64 (2006.01); H03H 9/72 (2006.01);
U.S. Cl.
CPC ...
Abstract
A surface acoustic wave apparatus include at least two surface acoustic wave filter devices, each of which includes two or more IDTs. One of the at least two surface acoustic wave filter devices is connected to one of balanced signal terminals, and another of the at least two surface acoustic wave filter devices is connected to the other balanced signal terminal, so as to have a balance-unbalance conversion function. The at least two surface acoustic wave devices are configured to produce a difference in the intensity of the excited SSBW therebetween.