JPS54128225A - Crt multiple screen display system - Google Patents
Crt multiple screen display systemInfo
- Publication number
- JPS54128225A JPS54128225A JP3554778A JP3554778A JPS54128225A JP S54128225 A JPS54128225 A JP S54128225A JP 3554778 A JP3554778 A JP 3554778A JP 3554778 A JP3554778 A JP 3554778A JP S54128225 A JPS54128225 A JP S54128225A
- Authority
- JP
- Japan
- Prior art keywords
- crt
- input
- display
- overlap
- refresh
- 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
Abstract
PURPOSE: To obtain the overlap screen through a simple constitution by switching the reading actions given through the refresh memory alternately and then densing them to the pattern generator circuit.
CONSTITUTION: The refresh address selector (AS) selects the address information at both the input and output sides. For the selection at the input side, the adress from the CRT display control circuit (CRTC) or MPU; while transmission of the address information is decided to refresh memory 3a or 3b for the selection at the output side. The reading for display of memory 3a and 3b is carried out in synchronization with the scanning from CRY to CRT. To secure the overlap display for the contents of 3a and 3b, switch circuit SW is provided to control AS and the input is applied by switching 3a and 3b alternately with overlap display order OV.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3554778A JPS54128225A (en) | 1978-03-29 | 1978-03-29 | Crt multiple screen display system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3554778A JPS54128225A (en) | 1978-03-29 | 1978-03-29 | Crt multiple screen display system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54128225A true JPS54128225A (en) | 1979-10-04 |
JPS6228473B2 JPS6228473B2 (en) | 1987-06-20 |
Family
ID=12444744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3554778A Granted JPS54128225A (en) | 1978-03-29 | 1978-03-29 | Crt multiple screen display system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54128225A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6051891A (en) * | 1983-08-31 | 1985-03-23 | ソニー株式会社 | Display unit |
JPS60208794A (en) * | 1984-04-02 | 1985-10-21 | 株式会社アドバンテスト | Display unit |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0426524U (en) * | 1990-06-26 | 1992-03-03 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS511375A (en) * | 1974-06-24 | 1976-01-08 | Sumitomo Chemical Co | Maikurokapuseruno seizoho |
-
1978
- 1978-03-29 JP JP3554778A patent/JPS54128225A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS511375A (en) * | 1974-06-24 | 1976-01-08 | Sumitomo Chemical Co | Maikurokapuseruno seizoho |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6051891A (en) * | 1983-08-31 | 1985-03-23 | ソニー株式会社 | Display unit |
JPH0568713B2 (en) * | 1983-08-31 | 1993-09-29 | Sony Corp | |
JPS60208794A (en) * | 1984-04-02 | 1985-10-21 | 株式会社アドバンテスト | Display unit |
Also Published As
Publication number | Publication date |
---|---|
JPS6228473B2 (en) | 1987-06-20 |
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