Mosaic effect generating apparatus

Details Mosaic effect generating apparatus Mosaic effect generating apparatus

1990-10-03

1992-09-15

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, 358183, H04N 974, H04N 5262, H04N 5272

Patent

active

051482770

ABSTRACT:
A mosaic effect generating apparatus having at least a single-line memory supplied with an incoming video signal, and supplying as its output a mosaic effect signal a clock signal generating circuit that determines the mosaic width by generating a clock signal of a predetermined frequency and supplying the clock signal to the single-line memory as a write clock signal and a read clock signal and a write control circuit that determines the mosaic height by enabling the incoming video signal to be writtenn in the single-line memory only during selected portions of each horizontal interval of a selected plurality of said successive horizontal intervals of the incoming video signal.

REFERENCES:
patent: 4782388 (1988-11-01), Lake
patent: 4888643 (1989-12-01), Kusakabe
patent: 4907072 (1990-03-01), Narusawa
"Digital Video Effects", by Masao Inaba, NEC Research & Development, No. 56 Jan. 1980.

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