JPS5269533A - Double keying prevention circuit - Google Patents

Double keying prevention circuit

Info

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
Application number
JP50146669A
Other languages
Japanese (ja)
Inventor
Sho Sano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP50146669A priority Critical patent/JPS5269533A/en
Publication of JPS5269533A publication Critical patent/JPS5269533A/en
Pending legal-status Critical Current

Links

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  • 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
JP50146669A 1975-12-08 1975-12-08 Double keying prevention circuit Pending JPS5269533A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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

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