Global Patent Index - EP 0059349 A3

EP 0059349 A3 19821013 - DISPLAY SYSTEM WITH MULTIPLE SCROLLING REGIONS

Title (en)

DISPLAY SYSTEM WITH MULTIPLE SCROLLING REGIONS

Publication

EP 0059349 A3 19821013 (EN)

Application

EP 82101013 A 19820211

Priority

  • US 23731681 A 19810223
  • US 23731881 A 19810223

Abstract (en)

[origin: EP0059349A2] 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

G09G 1/16

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)

Citation (search report)

  • [Y] US 4075620 A 19780221 - PASSAVANT FRANCIS C, et al
  • [Y] US 4126814 A 19781121 - MARLOWE FRANK J
  • [A] EP 0004554 A2 19791017 - IBM [US]
  • [X] BUSH, HE; LEIMER, JJ: "Data Display Terminal Buffer Addressing for Scrolling Operations", IP.COM JOURNAL, IP.COM INC., WEST HENRIETTA, NY, US, 1 November 1980 (1980-11-01), US, XP013045843, ISSN: 1533-0001
  • [Y] DEMKE, KR; DWIRE, JD; KO, MA: "Line Attribute Control", IP.COM JOURNAL, IP.COM INC., WEST HENRIETTA, NY, US, 1 April 1980 (1980-04-01), US, XP013044317, ISSN: 1533-0001
  • [A] STOCKWELL D A: "Display with partitioned slow scroll", IBM TECHNICAL DISCLOSURE BULLETIN, INTERNATIONAL BUSINESS MACHINES CORP. (THORNWOOD), US, vol. 23, no. 4, 1 September 1980 (1980-09-01), US, pages 1512 - 1513, XP002146254, ISSN: 0018-8689

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