CATV terminal and video apparatus having a noise eliminating cir

Details CATV terminal and video apparatus having a noise eliminating cir CATV terminal and video apparatus having a noise eliminating cir

1990-03-05

1992-05-12

Swann, Tod

Cryptography

Cryptanalysis

380 20, 358 36, H04N 7167

Patent

active

051134390

ABSTRACT:
In a CATV terminal or a video apparatus such as a TV receiver, noises superimposed on a DC part of a horizontal synchronizing signal of a video signal are eliminated by integrating the DC part or replacing the DC part with an appropriate constant voltage. Noises superimposed on a back porch portion of the video signal are eliminated in the similar manner by subjecting a luminance signal which has been separated from the video signal to the noise eliminating operation.

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