VGA signal converter for converting VGA color signals to VGA mon

Details VGA signal converter for converting VGA color signals to VGA mon VGA signal converter for converting VGA color signals to VGA mon

1994-03-29

1996-11-19

Saras, Steven

Computer graphics processing and selective visual display system

Plural display systems

Remotely located

345153, G09G 500

Patent

active

055767230

ABSTRACT:
A converter for converting VGA color signals to gray scale monochrome signals wherein each of the color signals, red, green, and blue, are processed through a circuit consisting of an emitter-follower, a selected value resistor, and a diode and wherein the outputs of the three circuits are connected together and across a load impedance for an analog monochrome monitor.

REFERENCES:
patent: 3715470 (1973-02-01), Craig
patent: 4727414 (1988-02-01), Ranf
patent: 4739312 (1988-04-01), Oudshoorn
patent: 4929933 (1990-05-01), McBeath
patent: 5091718 (1992-02-01), Beatty
patent: 5130702 (1992-07-01), Lee
patent: 5227768 (1993-07-01), Beckett et al.
patent: 5245327 (1993-09-01), Pleva
patent: 5268676 (1993-12-01), Asprey
patent: 5299306 (1994-03-01), Asprey

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