Analog to digital video adapter

Details Analog to digital video adapter Analog to digital video adapter

1986-04-28

1988-04-05

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 22, 358 27, H04N 964

Patent

active

047362405

ABSTRACT:
The invention processes a National Television System Committee (NTSC) standard video signal to allow a digital, transistor to transistor logic (TTL), 8 color, separate red, green, and blue (RGB) video, color monitor to be used to display television (TV) images. The infinite colors necessary for TV are produced on an 8 color TTL monitor through pulse width modulation. Thus, the width of the TTL video pulse to each color input of the monitor is proportional to the brightness required that is contained in the NTSC signal.

REFERENCES:
patent: 3812488 (1974-05-01), Yoshino
patent: 4020501 (1977-04-01), Hillberger
patent: 4149184 (1979-04-01), Giddings
patent: 4183046 (1980-01-01), Dalke
patent: 4516118 (1985-05-01), Wahlquist

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