JPS5223323A - Key switch operation detecting method - Google Patents

Key switch operation detecting method

Info

Publication number
JPS5223323A
JPS5223323A JP50099151A JP9915175A JPS5223323A JP S5223323 A JPS5223323 A JP S5223323A JP 50099151 A JP50099151 A JP 50099151A JP 9915175 A JP9915175 A JP 9915175A JP S5223323 A JPS5223323 A JP S5223323A
Authority
JP
Japan
Prior art keywords
key switch
detecting method
switch operation
operation detecting
closing
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
JP50099151A
Other languages
Japanese (ja)
Other versions
JPS5941197B2 (en
Inventor
Toshio Tomizawa
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.)
Nippon Gakki Co Ltd
Original Assignee
Nippon Gakki 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 Nippon Gakki Co Ltd filed Critical Nippon Gakki Co Ltd
Priority to JP50099151A priority Critical patent/JPS5941197B2/en
Priority to GB32940/76A priority patent/GB1555979A/en
Priority to US05/712,815 priority patent/US4148017A/en
Priority to CA258,932A priority patent/CA1086539A/en
Priority to DE2636281A priority patent/DE2636281C2/en
Priority to NL7609031A priority patent/NL7609031A/en
Priority to IT26291/76A priority patent/IT1083954B/en
Publication of JPS5223323A publication Critical patent/JPS5223323A/en
Priority to US06/076,319 priority patent/USRE32069E/en
Priority to CA358,207A priority patent/CA1098740A/en
Publication of JPS5941197B2 publication Critical patent/JPS5941197B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Input From Keyboards Or The Like (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

PURPOSE: Detect opening and closing of many switches installed in parallel efficiently.
COPYRIGHT: (C)1977,JPO&Japio
JP50099151A 1975-08-15 1975-08-15 Key switch operation detection method Expired JPS5941197B2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP50099151A JPS5941197B2 (en) 1975-08-15 1975-08-15 Key switch operation detection method
GB32940/76A GB1555979A (en) 1975-08-15 1976-08-06 Device for detecting a key switch operation
US05/712,815 US4148017A (en) 1975-08-15 1976-08-09 Device for detecting a key switch operation
CA258,932A CA1086539A (en) 1975-08-15 1976-08-12 Device for detecting a key switch operation
DE2636281A DE2636281C2 (en) 1975-08-15 1976-08-12 Device for identifying actuated key switches from a large number of key switches
NL7609031A NL7609031A (en) 1975-08-15 1976-08-13 DEVICE FOR DETECTING THE OPERATION OF BUTTON SWITCHES.
IT26291/76A IT1083954B (en) 1975-08-15 1976-08-13 DEVICE TO DETECT THE OPERATION OF KEY SWITCHES
US06/076,319 USRE32069E (en) 1975-08-15 1979-09-17 Device for detecting a key switch operation
CA358,207A CA1098740A (en) 1975-08-15 1980-08-13 Device for detecting a key switch operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50099151A JPS5941197B2 (en) 1975-08-15 1975-08-15 Key switch operation detection method

Publications (2)

Publication Number Publication Date
JPS5223323A true JPS5223323A (en) 1977-02-22
JPS5941197B2 JPS5941197B2 (en) 1984-10-05

Family

ID=14239677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50099151A Expired JPS5941197B2 (en) 1975-08-15 1975-08-15 Key switch operation detection method

Country Status (1)

Country Link
JP (1) JPS5941197B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5050230A (en) * 1973-08-16 1975-05-06
JPS63106818A (en) * 1986-10-24 1988-05-11 Nippon Mektron Ltd Input detecting method
US5833491A (en) * 1995-04-21 1998-11-10 Sony Corporation Electronic equipment having a miniaturized cell container having a securely locked cover with switch

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63128890U (en) * 1987-02-14 1988-08-23

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871624A (en) * 1971-12-28 1973-09-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871624A (en) * 1971-12-28 1973-09-27

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5050230A (en) * 1973-08-16 1975-05-06
JPS5236938B2 (en) * 1973-08-16 1977-09-19
JPS63106818A (en) * 1986-10-24 1988-05-11 Nippon Mektron Ltd Input detecting method
US5833491A (en) * 1995-04-21 1998-11-10 Sony Corporation Electronic equipment having a miniaturized cell container having a securely locked cover with switch

Also Published As

Publication number Publication date
JPS5941197B2 (en) 1984-10-05

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