Ghost canceler with adaptive transversal filter

Details Ghost canceler with adaptive transversal filter Ghost canceler with adaptive transversal filter

1990-12-18

1993-08-17

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358905, H04N 521

Patent

active

052374157

ABSTRACT:
A transversal filter filters an input video signal with a variable filtering characteristic. A waveform of a ghost cancel reference signal is periodically extracted from the input signal. An average of the successively-extracted waveforms is calculated. The filtering characteristic is determined on the basis of the calculated average of the extracted waveforms. An extracted waveform which is contaminated by an error or a jitter is rejected and is prevented from being used in the calculation of the average of the extracted waveforms.

REFERENCES:
patent: 4303895 (1981-12-01), Ohnishi et al.
patent: 4314277 (1982-02-01), Pritchard et al.
patent: 4389623 (1983-06-01), Onishi et al.
patent: 4502077 (1985-02-01), Morotomi et al.
patent: 4559560 (1985-12-01), Murata et al.
patent: 4564952 (1986-01-01), Karabinis et al.
patent: 4575857 (1986-03-01), Murakami
patent: 4583120 (1986-04-01), Murakami et al.
patent: 4686569 (1987-08-01), Campbell, III et al.
patent: 4912557 (1990-03-01), Faroudja
patent: 5053870 (1991-10-01), Ito et al.
patent: 5144414 (1992-09-01), Nishi et al.

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