Method and apparatus for utilizing blanking on both zero setup a

Details Method and apparatus for utilizing blanking on both zero setup a Method and apparatus for utilizing blanking on both zero setup a

1991-07-05

1994-08-02

Weldon, Ulysses

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

348441, 348572, 348691, G09G 300, H04N 516

Patent

active

053349989

ABSTRACT:
In a computer system having a frame buffer, apparatus for providing an overlay for the frame buffer, and a digital-to-analog converter for furnishing analog signals from the frame buffer to a pedestal setup display monitor, the digital-to-analog converter including apparatus for furnishing a blank level substantially below the lowest level of the analog signal desired to be visible on the monitor during retrace periods when used with a pedestal setup display monitor, the improvement including apparatus for allowing the system to utilize zero setup display monitors including apparatus for disabling the apparatus for furnishing a blank level when the computer system is used with a zero setup display monitor, and apparatus for causing the apparatus for providing an overlay for the frame buffer to furnish signals indicating a black level during retrace periods when the computer system is used with a zero setup display monitor.

REFERENCES:
patent: 4194220 (1980-03-01), Frame
patent: 4370674 (1983-01-01), Johnson et al.
patent: 4631589 (1986-12-01), Hongu et al.
patent: 4897801 (1990-01-01), Kazama et al.
patent: 4918534 (1990-04-01), Lam et al.
patent: 4987551 (1991-01-01), Garrett, Jr.
patent: 5043805 (1991-08-01), Citta et al.
patent: 5107189 (1992-04-01), Page
patent: 5111284 (1992-03-01), Tsujihara et al.

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