Apparatus for selecting mode of output in a computer system

Details Apparatus for selecting mode of output in a computer system Apparatus for selecting mode of output in a computer system

1989-05-01

1992-02-25

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

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

340721, G09G 128

Patent

active

050917170

ABSTRACT:
A computer system comprising a display memory, a window indentification memory, logic circuitry for ascertaining that information to be stored at each position of the display memory is in the correct window by comparing the window number in the window identification memory with the window number of information to be sent to the display memory, and a window identification look-up table activated by window identification signals for providing an output to select the number of bits of color information to be output from the display memory to provide color information for an output device.

REFERENCES:
patent: 4550315 (1985-10-01), Bass
patent: 4769762 (1988-09-01), Tsujido
patent: 4772881 (1988-09-01), Hannah
patent: 4862154 (1989-08-01), Gonzalez-Lopez

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