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. 01, 2013
Filed:
Jun. 22, 2010
Applicants:
Toshio Nishizawa, Yokohama, JP;
Go Endo, Yokohama, JP;
Inventors:
Toshio Nishizawa, Yokohama, JP;
Go Endo, Yokohama, JP;
Assignee:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/70 (2006.01); H03H 9/72 (2006.01); H03H 9/54 (2006.01); H03H 9/64 (2006.01);
U.S. Cl.
CPC ...
Abstract
An acoustic wave device includes an input terminal; a balun that is connected to the input terminal, converts a signal input from the input terminal into two anti-phase signals, and outputs the two anti-phase signals; and a filter that is connected to the balun, and outputs the two anti-phase signals input from the balun as balanced output signals. An output impedance of the balun is equal to an input impedance of the filter, and is larger than an output impedance of the filter.