JPS6421492A - Character generator - Google Patents
Character generatorInfo
- Publication number
- JPS6421492A JPS6421492A JP62180234A JP18023487A JPS6421492A JP S6421492 A JPS6421492 A JP S6421492A JP 62180234 A JP62180234 A JP 62180234A JP 18023487 A JP18023487 A JP 18023487A JP S6421492 A JPS6421492 A JP S6421492A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- character
- buffer
- read
- information
- 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 decrease the frequency of access to a memory by transferring information regarding the addresses of plural characters in blocks and storing it in a buffer for serial transfer, and reading it out at each time when a raster of a scanning type display unit crosses one character. CONSTITUTION: A block transfer means 13 transfers the information regarding the addresses of plural characters, arrayed along a scanning line, in blocks and stores it in the buffer 12 for serial transfer. This information after being stored temporarily in a buffer 14 is read out by a read means 16 each time a raster of the scanning type display unit crosses one character and then supplied to the address terminal of the memory 11 together with a scan address, so that graphic information is read out of the memory 11. Therefore, it is not necessary to read the address information of a character out of the memory 11 each time one character is scanned. Consequently, the frequency of access to the memory 11 can be decreased.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62180234A JPS6421492A (en) | 1987-07-16 | 1987-07-16 | Character generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62180234A JPS6421492A (en) | 1987-07-16 | 1987-07-16 | Character generator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6421492A true JPS6421492A (en) | 1989-01-24 |
Family
ID=16079717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62180234A Pending JPS6421492A (en) | 1987-07-16 | 1987-07-16 | Character generator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6421492A (en) |
-
1987
- 1987-07-16 JP JP62180234A patent/JPS6421492A/en active Pending
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