EP 0159851 A3 19900307 - ADVANCED VIDEO PROCESSOR WITH HARDWARE SCROLLING

Title (en)

ADVANCED VIDEO PROCESSOR WITH HARDWARE SCROLLING

Publication

EP 0159851 A3 19900307 (EN)

Application

EP 85302465 A 19850409

Priority

US 60067284 A 19840416
US 60073784 A 19840416
US 60092184 A 19840416

Abstract (en)

[origin: EP0159851A2] A video system with hardware scrolling includes the combination (1) of a video processor including a color palette for processing of data, a memory (31) for storing of data to be processed, a monitor (33) and (35) for displaying of the processed data, a processor (30) for controlling the transfer of data from the memory (30) to the monitor (33) and (35). The video processor (1) includes a control logic (65) for controlling the transfer of data and instructions between the processor (30) and the video processor (1); a memory control logic (67) for controlling, in response to the instructions from the processor (1), the transfer of data from the memory (31); registers and counters (63) for arranging data from the memory (31) in a predetermined order, to provide scrolling data for changing a display on the monitor (33) and (35) pixel by pixel and to apply the scrolling data according to the prearranged order to the sprite processor (10); and video output logic (57) for converting the scrolling data to a video signal to which the monitor (33) and (35) will respond to provide a display of a plurality of rows and characters of pixels.

IPC 1-7

G09G 1/16

IPC 8 full level

G06F 3/0485 (2013.01); G06F 3/048 (2013.01); G06F 3/14 (2006.01); G09G 1/06 (2006.01); G09G 1/16 (2006.01); G09G 1/28 (2006.01); G09G 5/02 (2006.01); G09G 5/06 (2006.01); G09G 5/34 (2006.01); G09G 5/377 (2006.01); G09G 5/38 (2006.01)

CPC (source: EP)

G09G 5/346 (2013.01)

Citation (search report)

[X] GB 2070399 A 19810903 - XTRAK CORP
[A] FR 2473206 A1 19810710 - DORNIER SYSTEM GMBH [DE]
[AD] US 4296476 A 19811020 - MAYER STEVEN T, et al
[XP] ELECTRONICS INTERNATIONAL, vol. 57, no. 13, June 1984, pages 121-124, New York, US; M. KISNER et al.: "A new-generation video processor boosts resolution"

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0159851 A2 19851030; EP 0159851 A3 19900307; EP 0159851 B1 19930113; DE 3586969 D1 19930225; DE 3586969 T2 19930506; JP 2887236 B2 19990426; JP S6122394 A 19860130

DOCDB simple family (application)

EP 85302465 A 19850409; DE 3586969 T 19850409; JP 8120885 A 19850416