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:
Jul. 16, 2013
Filed:
Dec. 05, 2008
Nobukazu Fudaba, Kawasaki, JP;
Hiroyoshi Ishikawa, Kawasaki, JP;
Hajime Hamada, Kawasaki, JP;
Yuichi Utsunomiya, Kawasaki, JP;
Kazuo Nagatani, Kawasaki, JP;
Nobukazu Fudaba, Kawasaki, JP;
Hiroyoshi Ishikawa, Kawasaki, JP;
Hajime Hamada, Kawasaki, JP;
Yuichi Utsunomiya, Kawasaki, JP;
Kazuo Nagatani, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A power amplifying apparatus has a bandwidth limitation process circuit to which an envelope signal included in a transmission signal is inputted, and which performs a bandwidth limitation process on the envelope signal, a variable power supply circuit for generating a power amplifier supply voltage based on a voltage control signal generated by the bandwidth limitation process circuit, and a power amplifier which is fed an input signal, and which is driven in accordance with the supply voltage from the variable power supply circuit.