JPS5269533A - Double keying prevention circuit - Google Patents
Double keying prevention circuitInfo
- Publication number
- JPS5269533A JPS5269533A JP50146669A JP14666975A JPS5269533A JP S5269533 A JPS5269533 A JP S5269533A JP 50146669 A JP50146669 A JP 50146669A JP 14666975 A JP14666975 A JP 14666975A JP S5269533 A JPS5269533 A JP S5269533A
- Authority
- JP
- Japan
- Prior art keywords
- prevention circuit
- double keying
- keying prevention
- double
- 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
Landscapes
- Input From Keyboards Or The Like (AREA)
Abstract
PURPOSE: To secure stabilized circuit operation as well as to decrease the parts number by giving only the output corresponding to 2n to OR circuit and then by utilizing the output as the strobe signal.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50146669A JPS5269533A (en) | 1975-12-08 | 1975-12-08 | Double keying prevention circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50146669A JPS5269533A (en) | 1975-12-08 | 1975-12-08 | Double keying prevention circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5269533A true JPS5269533A (en) | 1977-06-09 |
Family
ID=15412925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50146669A Pending JPS5269533A (en) | 1975-12-08 | 1975-12-08 | Double keying prevention circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5269533A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52116128U (en) * | 1976-03-01 | 1977-09-03 | ||
JPS59175172A (en) * | 1983-03-23 | 1984-10-03 | Nichicon Capacitor Ltd | Photocoupler device |
JPS60251420A (en) * | 1984-05-28 | 1985-12-12 | Tamura Electric Works Ltd | Key operation monitoring system |
-
1975
- 1975-12-08 JP JP50146669A patent/JPS5269533A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52116128U (en) * | 1976-03-01 | 1977-09-03 | ||
JPS5625078Y2 (en) * | 1976-03-01 | 1981-06-12 | ||
JPS59175172A (en) * | 1983-03-23 | 1984-10-03 | Nichicon Capacitor Ltd | Photocoupler device |
JPS60251420A (en) * | 1984-05-28 | 1985-12-12 | Tamura Electric Works Ltd | Key operation monitoring system |
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