Clamping circuit for an adaptive filter

Details Clamping circuit for an adaptive filter Clamping circuit for an adaptive filter

1980-03-10

1982-03-30

Gruber, Felix D.

Boots, shoes, and leggings

307556, 330278, 375 14, H03H 2100, H03G 1100

Patent

active

043228119

ABSTRACT:
In an adaptive filter having a delay cicuit wherein amplitude control circuits are comprised in taps of that delay circuit, which control circuits are controlled by means of an error signal which indicates the difference between an output signal of the filter and an output signal which has been brought into a desired waveform by a threshold circuit of the filter, a clamping control circuit is used which utilizes the integrated error signal as the control signal for matching the level of the output signal to a threshold level of the threshold circuit so that unwanted direct currents do not affect the amplitude control circuits.

REFERENCES:
patent: 3715670 (1973-02-01), Hirsch et al.
patent: 3814952 (1974-06-01), Lynn
patent: 3895305 (1975-07-01), Longman, Jr.
patent: 3921072 (1975-11-01), Sato
patent: 4013980 (1977-03-01), Schollmeier
patent: 4044381 (1977-08-01), Schimano et al.
patent: 4114179 (1978-09-01), Ilieve
patent: 4184129 (1980-01-01), Macchi et al.
Arnon: An Adaptive Equalizer for Television Channels, IEEE Transactions on Communication, vol. Con-17, No. 6, Dec. 1969.

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