Variable emphasis circuit

Details Variable emphasis circuit Variable emphasis circuit

1985-10-02

1986-12-16

Mullins, James B.

Amplifiers

Hum or noise or distortion bucking introduced into signal...

330151, 330305, 330306, 333 14, H03F 126

Patent

active

046299955

ABSTRACT:
A variable emphasis circuit comprises an operational amplifier for receiving an input signal, a modified integrator for receiving a first signal provided from the operational amplifier, and a dividing circuit for dividing the first signal to k times and 1-k times according to a control voltage. The 1-k times the first signal and a second signal provided from the modified integrator are fed back to the operational amplifier, and an output signal is formed from the second signal and the k times the first signal.

REFERENCES:
patent: 4055818 (1977-10-01), Gay

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