H - Electricity – 04 – B
Patent
H - Electricity
04
B
330/39
H04B 3/04 (2006.01)
Patent
CA 1296397
AUTOMATIC GAIN CONTROL AMPLIFIER FOR COMPENSATING CABLE LOSS ABSTRACT OF THE DISCLOSURE 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 (A0), 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 (Al), and an adding circuit (30) adding the amplified signals therefrom to output an output signal (OUT) in which the signal loss is compensated.
586998
Fujitsu Limited
Mcfadden Fincham
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