EP 0150453 A3 19870916 - INTER-LOGICAL-AREA DATA TRANSFER CONTROL SYSTEM
Title (en)
INTER-LOGICAL-AREA DATA TRANSFER CONTROL SYSTEM
Publication
Application
Priority
JP 271084 A 19840112
Abstract (en)
[origin: EP0150453A2] An improved inter-area-data transfer control system is disclosed which includes a display control device provided with an area movement function and is capable of providing the logical transverse widths of source (SW) and destination (DW) areas (registers 72 and 74) in a logical memory space separately from each other so as to reduce time required to execute the transfer of data from the source area to the destination area. The system comprises: means (71) for specifying a transfer start point of a source area (S); means (73) for specifying a transfer start point of a destination area (D); means (61) for holding amounts of data to be transferred in a horizontal direction; means (63) for holding amounts of data to be transferred in a vertical direction; and, means (72, 74) for providing the logical transverse width of said source area (S) and the logical transverse width of said destination area (D) separately, characterized in that a plurality of data of said source area specified by said means are read out from said memory unit (4) and are sequentially written into said destination area (D) so as to achieve transfer of said data between said source and destination areas (S, D).
IPC 1-7
IPC 8 full level
G09G 5/38 (2006.01); G06F 3/153 (2006.01); G06F 12/00 (2006.01); G06F 12/02 (2006.01); G09G 5/14 (2006.01); G09G 5/393 (2006.01)
CPC (source: EP)
G09G 5/393 (2013.01)
Citation (search report)
- [A] HEWLETT-PACKARD JOURNAL, vol. 31, no. 12, December 1980, pages 25-32, Amstelveen, NL; H.L. BAEVERSTAD et al.: "Display system designed for color graphics"
- [A] IBM TECHNICAL DISCLOSURE BULLETIN, vol. 25, no. 3A, August 1982, pages 1270-1273, New York, US; C.J. EVANGELISTI et al.: "Generalized pattern transfer from storage to storage bit buffer"
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0150453 A2 19850807; EP 0150453 A3 19870916; CA 1224574 A 19870721; JP S60147785 A 19850803
DOCDB simple family (application)
EP 84115899 A 19841220; CA 471916 A 19850111; JP 271084 A 19840112