Color video printer which enables a pattern generation process w

Details Color video printer which enables a pattern generation process w Color video printer which enables a pattern generation process w

1992-12-18

1996-01-30

Powell, Mark R.

395115, 395116, G03G 1501

Patent

active

054886902

ABSTRACT:
A color video printer comprising a first signal processing circuit for processing a video signal inputted therein to be storable and detecting synchronizing signals from the inputted video signal, a memory control unit for outputting read and write signals as memory control signals and generating a predetermined color test signal and predetermined data valid interval signals upon receiving no synchronizing signals from the first signal processing circuit, a pattern generating circuit being enabled by the color test signal for outputting a video pattern signal determined in data valid intervals, a video memory for storing the video signal from the first signal processing circuit or the video pattern signal from the pattern generating circuit in response to the write signal from the memory control unit and outputting the stored video signal or video pattern signal in response to the read signal from the memory control unit, a second signal processing circuit for processing the video signal or the video pattern signal read from the video memory to be displayable, a third signal processing circuit for processing the video signal or the video pattern signal read from the video memory to be printable, and a printing unit for printing a desired video based on an output signal from the third signal processing circuit.

REFERENCES:
patent: 5168292 (1992-12-01), Kadowaki et al.
patent: 5175804 (1992-12-01), Wittman
patent: 5179635 (1993-01-01), Yamazaki et al.
patent: 5265196 (1993-11-01), Haneda
patent: 5271096 (1993-12-01), Cook
patent: 5276779 (1994-01-01), Statt
patent: 5285296 (1994-02-01), Komooka et al.
patent: 5313291 (1994-05-01), Appel et al.

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