JPS6459384A - Raster control - Google Patents
Raster controlInfo
- Publication number
- JPS6459384A JPS6459384A JP62217198A JP21719887A JPS6459384A JP S6459384 A JPS6459384 A JP S6459384A JP 62217198 A JP62217198 A JP 62217198A JP 21719887 A JP21719887 A JP 21719887A JP S6459384 A JPS6459384 A JP S6459384A
- Authority
- JP
- Japan
- Prior art keywords
- crt
- dual
- port ram
- display data
- bit map
- 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
Landscapes
- Controls And Circuits For Display Device (AREA)
Abstract
PURPOSE: To optionally perform bit map processing for data displayed on a CRT screen by inputting display data to a dual-port RAM while sending them out to a CRT, and processing a bit map for the display data in this dual-port RAM. CONSTITUTION: When the display data outputted in synchronism with a synchronizing signal are sent out to the CRT 6 and displayed, the display data are inputted to the dual-port RAM 9 at the same time. Therefore, the bit map of one screen displayed on the CRT 6 is exploded on the dual-port RAM 9. Then character data in bit map form are processed by a host or dedicated CRT controller 7 as required through a dual-port RAM controller 8. The processed display data are sent out of the dual-port RAM 9 to the CRT 6 according to display timing to make a display according to the display data after the bit-map processing. Consequently, the data displayed on the CRT screen can optionally be processed into the bit map.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62217198A JPS6459384A (en) | 1987-08-31 | 1987-08-31 | Raster control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62217198A JPS6459384A (en) | 1987-08-31 | 1987-08-31 | Raster control |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6459384A true JPS6459384A (en) | 1989-03-07 |
Family
ID=16700398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62217198A Pending JPS6459384A (en) | 1987-08-31 | 1987-08-31 | Raster control |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6459384A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7458236B2 (en) | 2005-02-25 | 2008-12-02 | Karl Mayer Malimo Textilmaschinenfabrik Gmbh | Device for feeding fiber bands to a knitting machine |
-
1987
- 1987-08-31 JP JP62217198A patent/JPS6459384A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7458236B2 (en) | 2005-02-25 | 2008-12-02 | Karl Mayer Malimo Textilmaschinenfabrik Gmbh | Device for feeding fiber bands to a knitting machine |
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