Video signal conversion system with a vertical enhancement circu

Details Video signal conversion system with a vertical enhancement circu Video signal conversion system with a vertical enhancement circu

1993-05-21

1994-11-08

Kostak, Victor R.

Television

Format conversion

Conversion between standards with different aspect ratios

348458, 348628, H04N 701

Patent

active

053631404

ABSTRACT:
A picture signal processing circuit is composed of a picture memory, such as a field memory, having one input port for receiving an input picture signal and two distinct and independent output ports; a timing control circuit is designed to control the respective reading operations through the first and second output ports in such a manner that one output signal is shifted by one horizontal line period with respect to the other output signal, both output signals being supplied to an operating circuit, such as a vertical enhancer, for processing picture signals of a plurality of horizontal lines.

REFERENCES:
patent: 4602275 (1986-06-01), Smith et al.
patent: 4802010 (1989-01-01), Skinner et al.
patent: 4864402 (1989-09-01), Ebihara et al.

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