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:
Dec. 06, 1994
Filed:
Aug. 05, 1992
Hikaru Ikeda, Takatsuki, JP;
Toshio Ishizaki, Kobe, JP;
Hiroaki Kosugi, Hirakata, JP;
Yoshishige Yoshikawa, Kashihara, JP;
Kunihiko Kanazawa, Muko, JP;
Matsushita Electric Industrial Co. Ltd., Osaka, JP;
Abstract
A linear amplifier has an input signal controller for controlling the level of an input signal to a field-effect transistor (FET) using a DC gate current measured by a gate current detector arranged between a gate bias terminal and a drain bias terminal of the FET and a nonlinear resistor whose resistance can be varied corresponding to an inter-terminal voltage between the gate and the drain of the FET, in which the voltage at the gate of the FET is adjusted to a rate such that a particular drain current which has been determined just before the starting of burst signal transmission corresponding to the level of a power output of the linear amplifier is obtained, and is maintained for a given period of time.