Wipe pattern generator

Details Wipe pattern generator Wipe pattern generator

1989-05-01

1990-09-04

Peng, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 22, 358140, H04N 5272, H04N 701, H04N 964

Patent

active

049548980

ABSTRACT:
In a wipe pattern generator for generating a wipe pattern signal on the basis of wipe pattern data stored in a memory, data indicating a contour of a wipe pattern expressed by polar coordinates is stored in the memory, angle data and distance data indicating a position of each pixel on a monitor apparatus in a polar coordinate system is generated, data indicating the contour of the wipe pattern is read out from the memory on the basis of the angle data and a wipe pattern signal is formed on the basis of the read angle data and the distance data.

REFERENCES:
patent: 4580164 (1986-04-01), Andrieu et al.
patent: 4660043 (1987-04-01), Lachaize et al.
patent: 4729029 (1988-03-01), Henri et al.
patent: 4811102 (1989-03-01), Chaplin
patent: 4823183 (1989-04-01), Jackson et al.
patent: 4855834 (1989-08-01), Cawley et al.

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