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. 12, 2010
Filed:
Dec. 21, 2007
Applicant:
Seiichi Banba, Ogaki, JP;
Inventor:
Seiichi Banba, Ogaki, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cascade-connected transistor includes a common-source transistor which receives an input signal, and a common-gate transistor which is connected to a drain terminal of the common-source transistor and outputs an output signal. A band-pass filter receives the output signal of the cascade-connected transistors. An adjustment circuit is interposed between the drain terminal and the gate terminal of the common-gate transistor, and adjusts the output impedance of the cascade-connected transistor.