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:
Feb. 04, 2003
Filed:
May. 17, 2001
Applicant:
Inventors:
Assignee:
NTT DoCoMo, Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/00 ;
U.S. Cl.
CPC ...
H03F 1/00 ;
Abstract
A feed-forward amplifier configuration having a distortion detector circuit and a distortion canceller circuit is formed between an input port Ip and an output port OP of a multi-terminal power-combining power amplifier with a main amplifier M provided for each channel between an input-side multi-terminal power combiner and an output-side multi-terminal power combiner