Video noise detector

Details Video noise detector Video noise detector

1984-10-18

1986-04-08

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358166, 358155, 358 36, H04N 5213, H04N 514, H04N 508, H04N 964

Patent

active

045816417

ABSTRACT:
Noise in a composite video signal is detected by looking for the presence of excessive pulses resembling broad pulses or insufficient horizontal sync pulses. The output of the detector is averaged by a low pass filter, the output of which is, in turn, applied to a comparator for comparison with a reference DC level in generating a signal representing the noise level in the composite video signal.

REFERENCES:
patent: 3814855 (1974-06-01), Kokado

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