Signal-dropout correction circuit for correcting video signals d

Details Signal-dropout correction circuit for correcting video signals d Signal-dropout correction circuit for correcting video signals d

1984-02-03

1986-05-27

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358336, 358327, 358314, 360 381, H04N 988, H04N 594, H04N 578, H04N 979

Patent

active

045918988

ABSTRACT:
A dropout correction circuit is described. It comprises a dropout detector which compares a signal with a reference level and controls a switch which connects an output of the circuit to a line memory, in order to insert a corresponding part of a preceding line during such a dropout. In order to enable the reference level to be selected as high as possible the color carrier is extracted before the video signal is applied to the dropout detector.

REFERENCES:
patent: 4509078 (1985-04-01), Kuroda

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