JPS5464429A - Control circuit for crt display unit - Google Patents
Control circuit for crt display unitInfo
- Publication number
- JPS5464429A JPS5464429A JP13106177A JP13106177A JPS5464429A JP S5464429 A JPS5464429 A JP S5464429A JP 13106177 A JP13106177 A JP 13106177A JP 13106177 A JP13106177 A JP 13106177A JP S5464429 A JPS5464429 A JP S5464429A
- Authority
- JP
- Japan
- Prior art keywords
- counter
- signal
- character
- roll
- character display
- 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 aviod the missing of display caused by the operation, by enabling to follow with visual sense of man for the operation of the roll up or down for the character display position on CRT.
CONSTITUTION: The scanning line counter 7 outputting the scanning line end signal of one character every count of predetermined number of scanning lines, character display position counter 101 counting the value corresponding to the character display lines based on the signal from the counter 7, and FF104 and 105 displaying the operating condition of the roll up/roll down operation with external signal are provided. Further, the same screen repeating number counter 102 counting the number of repetition for the same screen display in response to the final character display signal in CRT screen with the output of FF104, 105 and the signal of the counter 101, correction counter 103 correcting the count of shift for the character line displayed on the CRT screen when not operated in response to the end signal of the repetitive operation from the counter 102, and the addition circuit 209 adding the value of the counter 103 are provided.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13106177A JPS5464429A (en) | 1977-10-31 | 1977-10-31 | Control circuit for crt display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13106177A JPS5464429A (en) | 1977-10-31 | 1977-10-31 | Control circuit for crt display unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5464429A true JPS5464429A (en) | 1979-05-24 |
Family
ID=15049083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13106177A Pending JPS5464429A (en) | 1977-10-31 | 1977-10-31 | Control circuit for crt display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5464429A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6097391A (en) * | 1983-09-30 | 1985-05-31 | イング・チイ・オリベツチ・アンド・チイ・エス・ピー・ア | Display for image prescribed by a plurality of data lines |
JPH0719786U (en) * | 1980-05-16 | 1995-04-07 | アプル・コンピュータ・インコーポレーテッド | Address device |
-
1977
- 1977-10-31 JP JP13106177A patent/JPS5464429A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0719786U (en) * | 1980-05-16 | 1995-04-07 | アプル・コンピュータ・インコーポレーテッド | Address device |
JPS6097391A (en) * | 1983-09-30 | 1985-05-31 | イング・チイ・オリベツチ・アンド・チイ・エス・ピー・ア | Display for image prescribed by a plurality of data lines |
JPH0570832B2 (en) * | 1983-09-30 | 1993-10-05 | Olivetti & Co Spa |
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