Impulse noise detector for a video signal receiver

Details Impulse noise detector for a video signal receiver Impulse noise detector for a video signal receiver

1992-06-29

1993-10-19

Kostak, Victor R.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358167, H04N 5213

Patent

active

052550788

ABSTRACT:
An impulse noise detector for detecting impulse noise in video signal includes a band pass filter for passing a band of video signal frequencies centered in the spectral region of video signals which exhibit a relative energy minimum. The band pass filtered signal is applied to a vertical comb filter. A threshold detector is coupled to the output connection of the comb filter for detecting the occurrences of impulse noise.

REFERENCES:
patent: 4398210 (1983-08-01), Liu et al.
patent: 4514763 (1984-04-01), Rindal
patent: 4926261 (1990-05-01), Matsumoto et al.

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