Apparatus for processing video signal

Details Apparatus for processing video signal Apparatus for processing video signal

1989-07-19

1991-02-26

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, H04N 5262

Patent

active

049965980

ABSTRACT:
An apparatus for processing a video signal related to signal processing for use in superimposing a graphic image such as characters and patterns on a video signal, in which two buses being conventionally necessary for controlling displaying contents are decreased to a single bus over which the graphic image data and process control command are transmitted by time-division multiplexing at the timings in synchronism with the video signal, whereby its hardware structure is simplified and, in addition, it is made possible to perform smooth switching over between different display contents.

REFERENCES:
patent: 4636858 (1987-01-01), Hague et al.
patent: 4729022 (1988-03-01), Shibuya et al.
patent: 4839728 (1989-06-01), Casey
patent: 4905077 (1990-02-01), Ishii
patent: 4908700 (1990-03-01), Ishii et al.
patent: 4930014 (1990-05-01), Maeda et al.

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