High resolution graphics system

Details High resolution graphics system High resolution graphics system

1987-07-21

1990-04-17

Yusko, Donald J.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340703, 340744, G09G 128

Patent

active

049184369

ABSTRACT:
A video graphics controller circuit for a personal computers includes a standard, EGA-compatible graphics adapter and a high-resolution companion module. A method is disclosed for configuring the graphics adapter is to generate 2 pixels in parallel in each clock cycle. The companion module serializes the pixels to generate a serial stream of pixels at twice the frequency of the graphics adapter. The companion module can also be configured as a video line driver so that the graphics controller circuit can also run software in standard video modes.

REFERENCES:
patent: 4250502 (1981-02-01), Klauch et al.
patent: 4673929 (1987-06-01), Nelson et al.
Stewart Alsop; The Enhanced Graphics Standard Comes of Age; PC Magazine; pp. 141-143; Aug., 1986.
Charles Petzold; Achieving the Standard: 12 EGA Boards; PC Magazine; pp. 145-182; Aug., 1986.
Charles Petzold; Exploring the EGA, Part 1; PC Magazine; pp. 367-384; Sep. 16, 1986.
Charles Petzold; Exploring the EGA, Part 2; PC Magazine; pp. 287-313; Aug., 1986.
"IBM Enhanced Graphics Adapter", IBM, Aug. 2, 1984, pp. 1-75.
"82C435 Enhanced Graphics Controller, 82A436 Bus Interface", Chips and Technologies, Jan. 1987, pp. 1-30.
Stewart Alsop, "The Enhanced Graphics Standard Comes of Age", PC Magazine, pp. 141-143, Aug. 1980.
Petzold, "Achieving the Standard: 12 EGA Boards"; PC Magazine, pp. 145-182, Aug. 1986.
Petzold, "Exploring the EGA, Part 1"; PC Magazine, Sep. 1986.
Petzold, "Exploring the EGA, Part 2"; PC Magazine, p. 3, Aug. 1988.

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