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:
Nov. 06, 2007
Filed:
Jun. 21, 2005
Applicant:
Eiichiro Otobe, Yokohama, JP;
Inventor:
Eiichiro Otobe, Yokohama, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 1/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A high power amplifier having high efficiency, compact and low cost characteristics based on the simple circuit structure effectively used over a wide range of the output power. A control circuit controls power supply operations of the power supply unit such that a high power amplifying unit can act as a low loss resistor that does not amplify the input signal during low power operation of the amplifier, but the high power amplifying unit amplifies the input signal during high power operation.