JPS5250628A - Key input reading system - Google Patents

Key input reading system

Info

Publication number
JPS5250628A
JPS5250628A JP50127065A JP12706575A JPS5250628A JP S5250628 A JPS5250628 A JP S5250628A JP 50127065 A JP50127065 A JP 50127065A JP 12706575 A JP12706575 A JP 12706575A JP S5250628 A JPS5250628 A JP S5250628A
Authority
JP
Japan
Prior art keywords
key input
reading system
input reading
burden
making
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
Application number
JP50127065A
Other languages
Japanese (ja)
Other versions
JPS5541456B2 (en
Inventor
Kunihiko Hakamazuka
Junji Kawahara
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 JP50127065A priority Critical patent/JPS5250628A/en
Publication of JPS5250628A publication Critical patent/JPS5250628A/en
Publication of JPS5541456B2 publication Critical patent/JPS5541456B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE: To reduce the burden of the work for the central processing device, by making to the set logic 1 setting up the latch circuit in the device having the key input arranged like the matrix assembly.
COPYRIGHT: (C)1977,JPO&Japio
JP50127065A 1975-10-22 1975-10-22 Key input reading system Granted JPS5250628A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50127065A JPS5250628A (en) 1975-10-22 1975-10-22 Key input reading system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50127065A JPS5250628A (en) 1975-10-22 1975-10-22 Key input reading system

Publications (2)

Publication Number Publication Date
JPS5250628A true JPS5250628A (en) 1977-04-22
JPS5541456B2 JPS5541456B2 (en) 1980-10-24

Family

ID=14950707

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50127065A Granted JPS5250628A (en) 1975-10-22 1975-10-22 Key input reading system

Country Status (1)

Country Link
JP (1) JPS5250628A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5457832A (en) * 1977-10-17 1979-05-10 Nec Corp Switch sense system
JPS55110328A (en) * 1979-02-19 1980-08-25 Casio Comput Co Ltd Interrupt processing system
JPS56105135U (en) * 1980-12-18 1981-08-17
JPS58159132A (en) * 1982-03-17 1983-09-21 Fujitsu General Ltd Key input discriminating method
JPS5958528A (en) * 1982-09-28 1984-04-04 Fujitsu Ltd Key input device
JPS6056326A (en) * 1983-09-06 1985-04-01 三菱電機株式会社 Operation display unit of equipment
JPS6263330A (en) * 1985-09-13 1987-03-20 Oki Densen Kk Method for detecting input address at high speed
JPS6461813A (en) * 1987-09-01 1989-03-08 Nec Corp Key matrix switching circuit
JPH0520290U (en) * 1991-08-29 1993-03-12 北海道電力株式会社 Lightning arrester with disconnection device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5168132A (en) * 1974-12-10 1976-06-12 Sharp Kk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5168132A (en) * 1974-12-10 1976-06-12 Sharp Kk

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5457832A (en) * 1977-10-17 1979-05-10 Nec Corp Switch sense system
JPS55110328A (en) * 1979-02-19 1980-08-25 Casio Comput Co Ltd Interrupt processing system
JPS56105135U (en) * 1980-12-18 1981-08-17
JPS58159132A (en) * 1982-03-17 1983-09-21 Fujitsu General Ltd Key input discriminating method
JPS5958528A (en) * 1982-09-28 1984-04-04 Fujitsu Ltd Key input device
JPS6056326A (en) * 1983-09-06 1985-04-01 三菱電機株式会社 Operation display unit of equipment
JPH035018B2 (en) * 1983-09-06 1991-01-24 Mitsubishi Electric Corp
JPS6263330A (en) * 1985-09-13 1987-03-20 Oki Densen Kk Method for detecting input address at high speed
JPS6461813A (en) * 1987-09-01 1989-03-08 Nec Corp Key matrix switching circuit
JPH0520290U (en) * 1991-08-29 1993-03-12 北海道電力株式会社 Lightning arrester with disconnection device

Also Published As

Publication number Publication date
JPS5541456B2 (en) 1980-10-24

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