Noise eliminative circuit employing a coring circuit

Details Noise eliminative circuit employing a coring circuit Noise eliminative circuit employing a coring circuit

1993-03-01

1995-02-14

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

348623, H04N 5213

Patent

active

053899784

ABSTRACT:
A noise eliminative circuit for eliminating noise components contained in an input image signal in which a high-frequency noise component is eliminated through a coring circuit, and a low-frequency noise component is selectively eliminated by horizontal and vertical correlation, without a damage to the input image signal. A coring circuit is employed for a horizontal high-frequency component of an image signal to remove a minute noise component, and an impulse noise elimination method is applied to a remaining component of the image signal to eliminate the noise component which is also removed in accordance with a user's selection of the high-frequency band.

REFERENCES:
patent: 4523230 (1985-06-01), Carlson et al.
patent: 4709269 (1987-11-01), Ozaki
patent: 5214510 (1993-05-01), Kobayashi
patent: 5278638 (1994-01-01), Nakada

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