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:
Oct. 02, 1990
Filed:
Dec. 23, 1988
Sadao Ibukuro, Tokyo, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An AGC amplifier for compensating a signal loss in a cable through which a signal having a frequency is passed, the signal loss being defined as a function of a square-root of the frequency, having a wide compensation ability and adaptable to the forming of a LSI circuit construction. The AGC amplifier includes a first amplifier (10) amplifying an input signal (IN) to be compensated at a first gain (A.sub.0), a differential circuit (40) having a constant differential coefficient defined by the frequency, and differentiating the input signal at the differential coefficient, a second amplifier (20) amplifying the differentiated signal at a second gain (A.sub.1), and an adding circuit (30) adding the amplified signals therefrom to output an output signal (OUT) in which the signal loss is compensated.