Dynamic coring circuit

Details Dynamic coring circuit Dynamic coring circuit

1982-04-30

1984-03-13

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 39, H04N 514

Patent

active

044371241

ABSTRACT:
In a television receiver, a horizontal peaking signal is formed for addition to a luminance signal to enhance its horizontal detail by relatively boosting high frequency components of the luminance signal. The peaking signal is subject to a coring action with the depth of coring subject to dynamic control in accordance with level variations of low frequency content of the luminance signals. The sense of control is such that a greater coring depth is associated with dark portions of a scene to be reproduced than is associated with bright portions thereof.

REFERENCES:
patent: 4167749 (1979-09-01), Burrus
patent: 4350995 (1982-09-01), Harlan
patent: 4399460 (1983-08-01), Harwood

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