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:
Jan. 07, 1986
Filed:
Aug. 14, 1984
Shigeru Yokosuka, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In transmission output power control apparatus of the type comprising a voltage variable attenuator inputted with a transmission signal, a power amplifier amplifying the output of the attenuator, a circuit detecting a portion of the output of the power amplifier, a reference voltage generator, a comparator for comparing with each other the outputs of the detector and the reference voltage generator and producing an error signal, a DC amplifier for amplifying the error signal, the output of the DC amplifier being supplied to the voltage variable attenuator for controlling either one or both of the input level and output gain of the power amplifier, there is provided a control voltage generator for producing a gain control voltage which is used to control the gain of the DC amplifier in response to the output of the detector.