Computer display apparatus for simultaneous display of data of d

Details Computer display apparatus for simultaneous display of data of d Computer display apparatus for simultaneous display of data of d

1990-06-13

1993-01-12

Harkcom, Gary V.

395133, 395135, 395161, 395164, G06F 1562

Patent

active

051796392

ABSTRACT:
A multiple memory display controller provides simultaneous display of overlaid image and graphic data in a computer display system. A video random access memory (RAM) in the display controller stores display data corresponding to graphics to be displayed on the computer display monitor. And a series of dynamic RAMS in the display controller stores display data corresponding to images to be displayed on the computer display monitor. A data mixer receives and mixes signals from the video RAM and one of the dynamic RAMs to form signals which are used to drive the display monitor. The signals provide graphics displayed at one resolution overlaid on images displayed at a different resolution on the monitor. A first-in first-out (FIFO) buffer and rectangle loader provide efficient loading of blocks of display data in the display controller memories.

REFERENCES:
patent: 4642794 (1987-02-01), Lavelle et al.
patent: 4672683 (1987-06-01), Matsueda
"Overview of PACS Activity at MGH" by R. A. Bauman et al. in the proceedings of the 10th Conference on Computer Applications in Radiology, Anaheim, Calif., Jun. 13-16, 1990 at pp. 235-241.
"Q-RSTAR Workstations & System--Technical Overview" by J. L. Taaffe et al., in the proceedings of the 10th Conference on Computer Applications in Radiology, at Anaheim, Calif. Jun. 13-16, 1990 at pp. 317-323.
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"Ultra-High Resolution Displays for Diagnostic Imaging" brochure by MegaScan Technology, Hopkinton, Mass. Apr. 1990.
"Video System With Real-Time Multi-Image Capability and Transparency", IBM Technical Disclosure Bulletin, vol. 32, No. 4B, Sep., 1989, pp. 192-193.

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