Dropout compensation circuit for a video reproducing system

Details Dropout compensation circuit for a video reproducing system Dropout compensation circuit for a video reproducing system

1983-05-17

1986-02-18

Psitos, Aristotelis M.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358328, H04N 9491

Patent

active

045716390

ABSTRACT:
A dropout compensation circuit for a video reproduction system includes a signal generating circuit for generating sum and difference signals corresponding to the sum and difference of the input chrominance and luminance signals, and for adding the difference and sum signals, after delaying the difference signal by one horizontal scanning period, to produce an output signal whose crosstalk component is eliminated, a signal separating circuit adapted to separate the chrominance and luminance signals from the delayed difference signal after delaying the delayed difference signal by one horizontal scanning period, and a signal selecting circuit adapted to supply the chrominance and luminance signals of the signal separating circuit to the signal generating circuit when it is determined that the reproduction signal is dropped out.

REFERENCES:
patent: 4032966 (1977-06-01), Kenney et al.
patent: 4291330 (1981-09-01), Hirai
patent: 4368483 (1983-06-01), Liu

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