EP 0292550 B1 19920701 - APPARATUS FOR CONTROLLING THE DISPLAY OF CHARACTERS WITH VISUAL ATTRIBUTES APPLIED THERETO
Title (en)
APPARATUS FOR CONTROLLING THE DISPLAY OF CHARACTERS WITH VISUAL ATTRIBUTES APPLIED THERETO
Publication
Application
Priority
US 93847486 A 19861205
Abstract (en)
[origin: WO8804461A1] An apparatus for controlling the display of characters on a CRT device (58) includes a memory (18) in which characters to be displayed are stored. Each character is displayed in a predetermined number of scan lines, and the memory (18) stores each character as a set of data bytes each of which represents one scan line of the respective character. One data byte of each set is an attribute byte containing attribute data bits. A display controller (22) includes selecting means for selecting the attribute bytes of a character to be displayed, attribute logic means for applying the attribute bits of each selected attribute byte to the other data bits of the corresponding character, and a video output (50) for outputting data signals representing the character to be displayed with the attribute bits applied.
IPC 1-7
IPC 8 full level
G09G 1/16 (2006.01); G09G 5/30 (2006.01); G09G 5/393 (2006.01)
CPC (source: EP)
G09G 5/30 (2013.01)
Citation (examination)
- IBM Technical Disclosure Bulletin, volume 23, no. 6, November 1980, (New York, US), D.R. Mersel: "Highlighting image data on pel for pel addressabledisplays" pages 2342-2343.
- IBM Technical Dislosure Bulletin, vol. 27, no. 10A, March 1985, (New York, US) "Alphanumeric display buffer", pages 5530-5533.
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 8804461 A1 19880616; DE 3780164 D1 19920806; DE 3780164 T2 19930225; EP 0292550 A1 19881130; EP 0292550 B1 19920701; JP H01501576 A 19890601
DOCDB simple family (application)
US 8703074 W 19871127; DE 3780164 T 19871127; EP 88900291 A 19871127; JP 50065788 A 19871127