Digital soft wipe signal generating apparatus

Details Digital soft wipe signal generating apparatus Digital soft wipe signal generating apparatus

1991-06-13

1993-08-31

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358182, H04N 5262

Patent

active

052413900

ABSTRACT:
In a device for producing a composite video picture display by combining digital video signals, a soft wipe signal is produced with an inclination from an input wipe signal, delayed pulses are produced by delay circuits for vertical-wise delays in the picture display and by shift registers for horizontalwise delays in the picture, and digital values of these pulses are normalized by an adder and a multiplier to produce the soft wipe signal.

REFERENCES:
patent: 3821468 (1974-06-01), Busch
patent: 4698666 (1987-10-01), Lake, Jr. et al.
patent: 5008755 (1991-04-01), Brain
patent: 5058189 (1991-10-01), Kanno

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