JPS5452928A - Crt display unit - Google Patents
Crt display unitInfo
- Publication number
- JPS5452928A JPS5452928A JP11937477A JP11937477A JPS5452928A JP S5452928 A JPS5452928 A JP S5452928A JP 11937477 A JP11937477 A JP 11937477A JP 11937477 A JP11937477 A JP 11937477A JP S5452928 A JPS5452928 A JP S5452928A
- Authority
- JP
- Japan
- Prior art keywords
- output
- counter
- roll
- line
- circuit
- 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 secure a simple line shift of the screen for the display unit which rolls up or down the data to be displayed, by selecting optionally the output of the line counter based on the external information and then applying the output as the vertical synchronous signal.
CONSTITUTION: In the CRT display control unit which contains memory unint 9 to store the CRT display information of one or more than one screen which is given from outside, line counter 5 counting line number 9 corresponding to display line number N and the vertical flyback time is installed along with display character number counter 4. In addition, the following units are added: line shift indication information register 7 which stores the roll-up or roll-down information given from outside; comparison coincidence circuit 10 which compares the output between register 7 and counter 5; and pulse duration adjusting circuit 14 which adjusts the output time of circuit 10. When a coincidence is obtained between the contents of register 7 which is set based on the external information and the contents of counter 5, the output of circuit 14 is applied to CRT12 in the form of the vertical synchronous signal. Then the picture read out from unit 9 is displayed in the form of the roll-up or roll-down
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11937477A JPS5452928A (en) | 1977-10-04 | 1977-10-04 | Crt display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11937477A JPS5452928A (en) | 1977-10-04 | 1977-10-04 | Crt display unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5452928A true JPS5452928A (en) | 1979-04-25 |
Family
ID=14759918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11937477A Pending JPS5452928A (en) | 1977-10-04 | 1977-10-04 | Crt display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5452928A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6050592A (en) * | 1983-08-30 | 1985-03-20 | シャープ株式会社 | Driving circuit for dot matrix liquid crystal display unit |
-
1977
- 1977-10-04 JP JP11937477A patent/JPS5452928A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6050592A (en) * | 1983-08-30 | 1985-03-20 | シャープ株式会社 | Driving circuit for dot matrix liquid crystal display unit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR850004672A (en) | Display control device | |
ES433910A1 (en) | Frame grabbing system | |
JPS54112122A (en) | Picture display unit | |
JPS5454531A (en) | Crt display unti | |
JPS5452928A (en) | Crt display unit | |
JPS54142935A (en) | Picture display system | |
JPS52125235A (en) | Process condition display unit | |
JPS5459030A (en) | Color picture emphasizing display unit | |
JPS5486324A (en) | Display device for camera | |
JPS5432223A (en) | Level display unit | |
JPS5441011A (en) | Display system of television receiver of program reservation system | |
JPS55142470A (en) | Video track display unit | |
JPS53148233A (en) | Image-data scrolling system | |
JPS5463621A (en) | Crt display system | |
JPS54100780A (en) | Waveform checking circuit | |
JPS5444442A (en) | Character display system | |
JPS54137943A (en) | Electronic cash register | |
SU1179424A1 (en) | Graphic information output device | |
JPS54104244A (en) | Picture memory unit | |
JPS53118938A (en) | Luminance control unit | |
JPS5446431A (en) | Display unit with dark bright function | |
JPS54139431A (en) | Crt display unit | |
JPS5463622A (en) | Crt display system | |
SU1043730A1 (en) | Device for displaying information on television receiver screen | |
JPS54109331A (en) | Character display unit |