Phaseless equalizer

Details Phaseless equalizer Phaseless equalizer

1976-06-28

1978-01-31

Gensler, Paul L.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328164, 333 28R, 358 37, H03K 501

Patent

active

040717828

ABSTRACT:
An equalizer in which an input signal is double differentiated without introducing phase shift. First and second differentiating circuits are provided at the input electrode and one of the output electrodes of a transistor. A further circuit is provided at the other transistor output electrode, the circuit having the same time constant as the time constant of the first differentiating circuit. Low pass filters and noise suppression may be included in embodiments particularly useful in video and audio recording and reproducing systems.

REFERENCES:
patent: 3839598 (1974-10-01), Okada et al.
patent: 3849792 (1974-11-01), Holzrichter
patent: 3873945 (1975-03-01), Muraoka
patent: 3938050 (1976-02-01), Corbett et al.

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