EP 0059349 A2 19820908 - Display system with multiple scrolling regions.
Title (en)
Display system with multiple scrolling regions.
Title (de)
Anzeigesystem mit mehreren Bereichen zur Zeilenverschiebung des Bildschirminhalts.
Title (fr)
Système d'affichage divisé en plusieurs zÔnes avec décalage de texte par zÔne.
Publication
Application
Priority
- US 23731681 A 19810223
- US 23731881 A 19810223
Abstract (en)
A data display and management system includes a microprocessor (10) whose functions are implemented by instructions in data from a directly connected main memory (48). A mass data storage memory (52) is connected to the main memory (48) and has permanently stored instructions set therein for the microprocessor (10). A display control system which operates asynchronously with the microprocessor includes a display controller (16), display memory (96, 104), character memory means, and a visual character attribute generator (94). By linking one or more row attribute bytes, or pointers, to each row of characters stored in the display memory (96) the display controller (16) performs character and row manipulation on a display device without transferring whole blocks of data in the display memory (96). Multi-region display segmentation into horizontal and vertical split regions, smooth or discrete scrolling of individual regions, and various editing functions are achieved by modifying the associated display memory pointers.
IPC 1-7
IPC 8 full level
G06F 3/14 (2006.01); G06F 3/153 (2006.01); G06F 17/24 (2006.01); G09G 1/00 (2006.01); G09G 5/00 (2006.01); G09G 5/14 (2006.01); G09G 5/34 (2006.01)
CPC (source: EP)
G09G 1/007 (2013.01); G09G 5/14 (2013.01)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0059349 A2 19820908; EP 0059349 A3 19821013; EP 0059349 B1 19860806; DE 3272407 D1 19860911; JP 2697800 B2 19980114; JP H05134652 A 19930528; JP H0740179 B2 19950501; JP S57158878 A 19820930
DOCDB simple family (application)
EP 82101013 A 19820211; DE 3272407 T 19820211; JP 20431891 A 19910814; JP 2726382 A 19820222