JPS6457330A - Multiwindow display system - Google Patents
Multiwindow display systemInfo
- Publication number
- JPS6457330A JPS6457330A JP62213028A JP21302887A JPS6457330A JP S6457330 A JPS6457330 A JP S6457330A JP 62213028 A JP62213028 A JP 62213028A JP 21302887 A JP21302887 A JP 21302887A JP S6457330 A JPS6457330 A JP S6457330A
- Authority
- JP
- Japan
- Prior art keywords
- frame buffer
- window
- display system
- selector
- constituted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To reduce overhead by forming a window selecting table and selecting a window at real time simultaneously with memory reading for refreshing a screen. CONSTITUTION:A multiwindow display system is constituted of a window selecting table 21 to be a control means, frame buffer memories 22, a selector 23, and a CRT display 24. A bit map memory is constituted of n frame buffer memories 22 and said window 21. At the time of displaying data on the CRT display 24, said table 21 corresponds to a pixel address of the frame buffer 22 at the rate of one to one and stores information indicating which frame buffer 22 for a certain pixel is to be used for displaying its contents. The contents of respective buffer memories are sent to the selector 23. Since data can be displayed only by writing them in the frame buffer 22, overhead can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62213028A JPS6457330A (en) | 1987-08-28 | 1987-08-28 | Multiwindow display system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62213028A JPS6457330A (en) | 1987-08-28 | 1987-08-28 | Multiwindow display system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6457330A true JPS6457330A (en) | 1989-03-03 |
Family
ID=16632312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62213028A Pending JPS6457330A (en) | 1987-08-28 | 1987-08-28 | Multiwindow display system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6457330A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02287613A (en) * | 1989-04-28 | 1990-11-27 | Fuji Xerox Co Ltd | Data processor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61238089A (en) * | 1985-04-15 | 1986-10-23 | 三菱電機株式会社 | Multiwindow controller |
-
1987
- 1987-08-28 JP JP62213028A patent/JPS6457330A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61238089A (en) * | 1985-04-15 | 1986-10-23 | 三菱電機株式会社 | Multiwindow controller |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02287613A (en) * | 1989-04-28 | 1990-11-27 | Fuji Xerox Co Ltd | Data processor |
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