JPS51145218A - Key matrix scanning circuit - Google Patents
Key matrix scanning circuitInfo
- Publication number
- JPS51145218A JPS51145218A JP50069800A JP6980075A JPS51145218A JP S51145218 A JPS51145218 A JP S51145218A JP 50069800 A JP50069800 A JP 50069800A JP 6980075 A JP6980075 A JP 6980075A JP S51145218 A JPS51145218 A JP S51145218A
- Authority
- JP
- Japan
- Prior art keywords
- key matrix
- scanning circuit
- matrix scanning
- scan signal
- signal
- 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
- Input From Keyboards Or The Like (AREA)
Abstract
PURPOSE: In use of the digit scan signal of indicating tube as the scan signal of key matrix, a few number of terminals can be realized by means of common connection between signal line and output line.
COPYRIGHT: (C)1976,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50069800A JPS51145218A (en) | 1975-06-09 | 1975-06-09 | Key matrix scanning circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50069800A JPS51145218A (en) | 1975-06-09 | 1975-06-09 | Key matrix scanning circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS51145218A true JPS51145218A (en) | 1976-12-14 |
JPS5518391B2 JPS5518391B2 (en) | 1980-05-19 |
Family
ID=13413166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50069800A Granted JPS51145218A (en) | 1975-06-09 | 1975-06-09 | Key matrix scanning circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS51145218A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61101826A (en) * | 1984-10-25 | 1986-05-20 | Fujitsu Ten Ltd | Matrix structure |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5036031A (en) * | 1973-07-18 | 1975-04-04 | ||
JPS5193126U (en) * | 1975-08-12 | 1976-07-26 | ||
JPS5193126A (en) * | 1975-02-12 | 1976-08-16 |
-
1975
- 1975-06-09 JP JP50069800A patent/JPS51145218A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5036031A (en) * | 1973-07-18 | 1975-04-04 | ||
JPS5193126A (en) * | 1975-02-12 | 1976-08-16 | ||
JPS5193126U (en) * | 1975-08-12 | 1976-07-26 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61101826A (en) * | 1984-10-25 | 1986-05-20 | Fujitsu Ten Ltd | Matrix structure |
Also Published As
Publication number | Publication date |
---|---|
JPS5518391B2 (en) | 1980-05-19 |
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