Patent EP0150453A2 successfully refreshed from Google Patents.
EP0150453A2
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EP
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Inter-logical-area data transfer control system
Assignee: ASCII Corp
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Filing: 1984-12-20
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Granted: —
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Expires: 2004-12-20
Abstract
Abstract 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).
Inventors
- 👤 Takatoshi Ishii
- 👤 Ryozo Yamashita
- 👤 Kazuhiko Nishi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 05:20
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/36; G09G5/39; G09G5/393
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
145 words
An inter-logical-area data transfer control system for a memory unit (4) and comprising display plane logic comprising: means (7) for specifying a transfer start point of 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).
Claim 2
Dependent Claim
145 words
An inter-logical-area data transfer control system for a memory unit (4) and comprising display plane logic comprising: means (7) for specifying a transfer start point of 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).
Claim 3
Dependent Claim
21 words
An inter-logical-area data transfer control system as defined in claim 1, characterized in that said'memory unit is a display memory (4).
Claim 4
Dependent Claim
34 words
An inter-logical-area data transfer control system as defined in claim 1, characterized in that said source area (S) or said destination area (D) is a main memory via a single data register (34, 52).
Claim 5
Dependent Claim
29 words
An inter-logical-area data transfer control system as defined in claim 1, characterized in that said source area is a data register (52) included in said data transfer control system.
Claim 6
Dependent Claim
35 words
An inter-logical-area data transfer control system as defined in claim 1, characterized in that a register pointer (44) for setting up command parameters is provided with a count function and is capable of successive settings.
Claim 7
Dependent Claim
77 words
An inter-logical-area data transfer control system as defined in claim 1, characterized in that there is provided means (60, 62) for holding each of horizontal and vertical transfer directions of transfer points, and that said transfer directions comprise directions in which, when said destination and source areas are superposed on each other, said data is to be transferred in the order that said data within said source area is not rewritten before the transfer of said data.
Claim 8
Dependent Claim
45 words
An inter-logical-area data transfer control system as defined in claim 1, characterized in that said inter-area data transfer is performed by means of logical operation means'(51) which logically operates on said data of said source area (S) and said data of said destination area (D).
Claim 9
Dependent Claim
110 words
An inter-logical-area data transfer control system for a memory unit comprising display plane logic, comprising: means (71) for specifying a transfer start point of a source area (8); means (73) for specifying a transfer start point of a destination area (D); means (62) for holding amounts of data to be transferred in a horizontal direction; and, means (63) for holding amounts of data to be transferred in a vertical direction, characterized in that a plurality of data of said source area (S) specified by said means are read out of said memory unit (4) and are sequentially written into said destination area (D) so as to achieve inter-area data transfer.
Claim 10
Dependent Claim
110 words
An inter-logical-area data transfer control system for a memory unit comprising display plane logic, comprising: means (71) for specifying a transfer start point of a source area (8); means (73) for specifying a transfer start point of a destination area (D); means (62) for holding amounts of data to be transferred in a horizontal direction; and, means (63) for holding amounts of data to be transferred in a vertical direction, characterized in that a plurality of data of said source area (S) specified by said means are read out of said memory unit (4) and are sequentially written into said destination area (D) so as to achieve inter-area data transfer.
References Cited (Backward Citations)
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