JPS5467337A - Video memory unit - Google Patents
Video memory unitInfo
- Publication number
- JPS5467337A JPS5467337A JP13449377A JP13449377A JPS5467337A JP S5467337 A JPS5467337 A JP S5467337A JP 13449377 A JP13449377 A JP 13449377A JP 13449377 A JP13449377 A JP 13449377A JP S5467337 A JPS5467337 A JP S5467337A
- Authority
- JP
- Japan
- Prior art keywords
- data
- memory
- signal
- address
- readout
- 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.)
- Granted
Links
Landscapes
- Image Input (AREA)
- Digital Computer Display Output (AREA)
- Memory System (AREA)
Abstract
PURPOSE: To perform write-in and readout of the video memory in high speed and with a simple circuit constitution, by locating the memory card so that the card address is different each other and reading out the data output and outputting it to the data bus with the readoud data register.
CONSTITUTION: The AND circuit 20 receives the signal of the card address bus 200 and generates the card selection signal with the card address signal corresponded. Further, the memory 10 memorizes the output signal 204 of the write-in data register to the address designated with the signal 201 of the address bus and sets the memory data designated and read out with the address signal of the memory 10 with the readout data set signal 104 of the control bus 206. Then, the memory cards are located so that the card address is different each other, and the readout data reigster 12 outputs the data output to the readout data bus. Accordingly, the write-in and readout of the video memory can be made with a simple circuit constitution and in high speed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52134493A JPS6040053B2 (en) | 1977-11-08 | 1977-11-08 | image storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52134493A JPS6040053B2 (en) | 1977-11-08 | 1977-11-08 | image storage device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5467337A true JPS5467337A (en) | 1979-05-30 |
| JPS6040053B2 JPS6040053B2 (en) | 1985-09-09 |
Family
ID=15129600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52134493A Expired JPS6040053B2 (en) | 1977-11-08 | 1977-11-08 | image storage device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6040053B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574670A (en) * | 1980-06-11 | 1982-01-11 | Chubu Nippon Hoso Kk | Picture memory control system |
| JPS5880737A (en) * | 1981-10-20 | 1983-05-14 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Interactive text processing system |
| JPH05205477A (en) * | 1991-05-20 | 1993-08-13 | Motorola Inc | Randomly accessible memory having time overlap memory-access |
| JP2009531742A (en) * | 2006-03-29 | 2009-09-03 | テクトロニクス・インコーポレイテッド | High speed rasterizer |
-
1977
- 1977-11-08 JP JP52134493A patent/JPS6040053B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574670A (en) * | 1980-06-11 | 1982-01-11 | Chubu Nippon Hoso Kk | Picture memory control system |
| JPS5880737A (en) * | 1981-10-20 | 1983-05-14 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Interactive text processing system |
| JPH05205477A (en) * | 1991-05-20 | 1993-08-13 | Motorola Inc | Randomly accessible memory having time overlap memory-access |
| JP2009531742A (en) * | 2006-03-29 | 2009-09-03 | テクトロニクス・インコーポレイテッド | High speed rasterizer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6040053B2 (en) | 1985-09-09 |
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