Wipe generator having start position and width controller

Details Wipe generator having start position and width controller Wipe generator having start position and width controller

1991-01-02

1993-02-02

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 5262

Patent

active

051842220

ABSTRACT:
A wipe waveform signal generating apparatus includes a wipe width generator generating a wipe width. A wipe waveform extended width holding device outputs a horizontal extended width and a vertical extended width. A wipe waveform calculator receives the wipe width, the horizontal extended width, and the vertical extended width, and outputs a rectangular-area horizontal width, a rectangular-area vertical width, a rectangular-area horizontal starting position, and a rectangular-area vertical starting position. A change signal generator receives the rectangular-area horizontal width, the rectangular-area vertical width, the rectangular-area horizontal starting position, and the rectangular-area vertical starting position, and outputs a wipe waveform signal.

REFERENCES:
patent: 3757041 (1973-09-01), Thorpe et al.
patent: 4520398 (1985-05-01), Takahashi
patent: 4591913 (1986-05-01), Pohl
patent: 4809072 (1989-02-01), Pohl
patent: 4831447 (1989-05-01), Lake, Jr.
patent: 4954898 (1990-09-01), Nakata
patent: 4974083 (1990-11-01), Bloomfield et al.
Television Technics & Electronics; '89/vol. 37; pp. 15-21.

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