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:
Apr. 29, 2003
Filed:
Oct. 31, 2001
Applicant:
Inventor:
Hidehiko Norimatsu, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/38 ; H04Q 1/112 ;
U.S. Cl.
CPC ...
H04B 1/38 ; H04Q 1/112 ;
Abstract
In a power amplifier for amplifying power using a transistor, the transistor includes a plurality of transistor units connected in parallel and having different static characteristics or pinch-off voltages. When a bias voltage applied to the plurality of transistor units is lowered, predetermined transistor units of the plurality of transistor units are turned off by pinch-off, and the remaining transistor units are in an ON state.
Norimatsu, Hidehiko. (2003). Power amplifier (U.S. Patent No. 6556848). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6556848
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile