Color video signal generating device using monochrome and color

Details Color video signal generating device using monochrome and color Color video signal generating device using monochrome and color

1989-02-13

1989-10-24

Coles, Sr., Edward L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 41, H04N 909, H04N 904

Patent

active

048765910

ABSTRACT:
A video signal generating device with which a video signal of high resolution is produced while significantly suppressing the generation of color Moire disturbance. The received optical image is split into two beams and applied to respective color and monochrome image sensors. The optical beam applied to the color sensor is optically filtered to limit it in spatial frequency to a band below that applied to the monochrome sensor. A high frequency luminance signal is produced from an output of the monochrome sensor, a low frequency luminance signal is produced from the output of the color sensor, and a composite luminance signal is formed from the combination of the high and low frequency luminance signals. The overall resolution of the device is determined by the monochrome signals produced by the monochrome sensor.

REFERENCES:
patent: 4746972 (1988-05-01), Takanashi et al.

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