JPS529324A - Light pen malfunction preventing method - Google Patents
Light pen malfunction preventing methodInfo
- Publication number
- JPS529324A JPS529324A JP50084933A JP8493375A JPS529324A JP S529324 A JPS529324 A JP S529324A JP 50084933 A JP50084933 A JP 50084933A JP 8493375 A JP8493375 A JP 8493375A JP S529324 A JPS529324 A JP S529324A
- Authority
- JP
- Japan
- Prior art keywords
- light pen
- preventing method
- malfunction preventing
- light
- malfunction
- 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
- Digital Computer Display Output (AREA)
Abstract
PURPOSE: To eliminate light noises with a simple constitution and prevent malfunction of a light pen by generating a trigger pulse with a light pen input and by producing a light pen output with a logical product of the trigger pulses.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50084933A JPS529324A (en) | 1975-07-12 | 1975-07-12 | Light pen malfunction preventing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50084933A JPS529324A (en) | 1975-07-12 | 1975-07-12 | Light pen malfunction preventing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS529324A true JPS529324A (en) | 1977-01-24 |
JPS5415734B2 JPS5415734B2 (en) | 1979-06-16 |
Family
ID=13844473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50084933A Granted JPS529324A (en) | 1975-07-12 | 1975-07-12 | Light pen malfunction preventing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS529324A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5628550A (en) * | 1979-08-17 | 1981-03-20 | Nec Corp | Direct telephone connection system |
JPS5980053A (en) * | 1982-10-29 | 1984-05-09 | Nec Corp | Mutual connecting method of extension |
-
1975
- 1975-07-12 JP JP50084933A patent/JPS529324A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5628550A (en) * | 1979-08-17 | 1981-03-20 | Nec Corp | Direct telephone connection system |
JPS5980053A (en) * | 1982-10-29 | 1984-05-09 | Nec Corp | Mutual connecting method of extension |
Also Published As
Publication number | Publication date |
---|---|
JPS5415734B2 (en) | 1979-06-16 |
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