Graphics display comparator for multiple bit plane graphics controller

A graphic control system under the control of a host processor to display, on a display monitor, high resolution color graphic images. The graphic control system employs a plurality of graphic display controllers each accessing, in parallel, a separate bit map storage area or a plane. When a gray-sc...

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Bibliographic Details
Main Authors SCHRAGE; JAMES R, BLANCH; ROY L, GRUNEWALD; PAUL
Format Patent
LanguageEnglish
Published 07.10.1986
Edition4
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CALCULATING
COMPUTING
COUNTING
CRYPTOGRAPHY
DISPLAY
EDUCATION
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
SEALS
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Summary:A graphic control system under the control of a host processor to display, on a display monitor, high resolution color graphic images. The graphic control system employs a plurality of graphic display controllers each accessing, in parallel, a separate bit map storage area or a plane. When a gray-scale or color display is required, respective planes are read out in parallel and converted for serial transmission with respective outputs being supplied in parallel as a code to a look-up table of color or gray-scale codes that in turn are supplied to a digital-to-analog converter that drives the display monitor. In addition, a compare circuit is provided to receive outputs sent from the respective bit plane stores for comparison with preset outputs from the host computer to determine when the display monitor has reached a boundary of a figure being filled with a particular color or pattern.
Bibliography:Application Number: US19830524904