Video image reading apparatus

Details Video image reading apparatus Video image reading apparatus

1991-04-02

1993-12-21

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358140, H04N 706, H04N 140

Patent

active

052725472

ABSTRACT:
A video image reading apparatus stores video data from a reader of the video image of an original document and outputs the stored video signals as a standard television video signal by successively reading the video signals from the video memory in a timing relationship complying with a given standard television format. The present invention makes it possible to reduce the storage capacity of the video memory by comparing the lower-order bits of the video data from the video image reader with a reference data which cyclically changes and by adding a result of comparison to the higher-order bits to store the sum to the video memory.

REFERENCES:
patent: 4764870 (1988-08-01), Haskin
patent: 5012353 (1991-04-01), Yoshino et al.

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