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JPS53117933A - Double keying preventing circuit - Google Patents

Double keying preventing circuit

Info

Publication number
JPS53117933A
JPS53117933A JP3271577A JP3271577A JPS53117933A JP S53117933 A JPS53117933 A JP S53117933A JP 3271577 A JP3271577 A JP 3271577A JP 3271577 A JP3271577 A JP 3271577A JP S53117933 A JPS53117933 A JP S53117933A
Authority
JP
Japan
Prior art keywords
preventing circuit
double keying
keying
double
preventing
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
JP3271577A
Other languages
Japanese (ja)
Inventor
Toshihiko Oba
Tadao Katazuki
Keiji Tsuchida
Toshiro Sugawara
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP3271577A priority Critical patent/JPS53117933A/en
Publication of JPS53117933A publication Critical patent/JPS53117933A/en
Pending legal-status Critical Current

Links

Landscapes

  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE: To obtain a very economical double keying preventing circuit which can prevent completely the double keying of the keyboard through a simple constitution.
COPYRIGHT: (C)1978,JPO&Japio
JP3271577A 1977-03-24 1977-03-24 Double keying preventing circuit Pending JPS53117933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3271577A JPS53117933A (en) 1977-03-24 1977-03-24 Double keying preventing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3271577A JPS53117933A (en) 1977-03-24 1977-03-24 Double keying preventing circuit

Publications (1)

Publication Number Publication Date
JPS53117933A true JPS53117933A (en) 1978-10-14

Family

ID=12366522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3271577A Pending JPS53117933A (en) 1977-03-24 1977-03-24 Double keying preventing circuit

Country Status (1)

Country Link
JP (1) JPS53117933A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4941026A (en) * 1972-08-26 1974-04-17
JPS4966154A (en) * 1972-10-25 1974-06-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4941026A (en) * 1972-08-26 1974-04-17
JPS4966154A (en) * 1972-10-25 1974-06-26

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