DISPLAY SYSTEM

A display system has, in addition to a display memory for the main storage of display information for a character mode, a separate cache for the temporary storage of the definitions of one or more fonts currently required for display and control logic for updating the font cache from the display mem...

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Bibliographic Details
Main Authors HAIGH, DAVID CHRISTOPHER, WOOD, ROGER, TIMOTHY, HARRISON, ROY BERNARD
Format Patent
LanguageEnglish
French
Published 05.12.1995
Edition6
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CORRECTION OF TYPOGRAPHICAL ERRORS
CRYPTOGRAPHY
DISPLAY
EDUCATION
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PERFORMING OPERATIONS
PHYSICS
PRINTING
SEALS
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:A display system has, in addition to a display memory for the main storage of display information for a character mode, a separate cache for the temporary storage of the definitions of one or more fonts currently required for display and control logic for updating the font cache from the display memory. This enables the efficient support of a character mode on a display system, particularly where the display memory of that system is implemented with dual-ported memory technology. Compatibility with existing display standards is achieved.
Bibliography:Application Number: CA19902021831