JPH0432719Y2 - - Google Patents

Info

Publication number
JPH0432719Y2
JPH0432719Y2 JP1983090093U JP9009383U JPH0432719Y2 JP H0432719 Y2 JPH0432719 Y2 JP H0432719Y2 JP 1983090093 U JP1983090093 U JP 1983090093U JP 9009383 U JP9009383 U JP 9009383U JP H0432719 Y2 JPH0432719 Y2 JP H0432719Y2
Authority
JP
Japan
Prior art keywords
key
matrix
optical signal
optical
shutter
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.)
Expired
Application number
JP1983090093U
Other languages
English (en)
Japanese (ja)
Other versions
JPS59194796U (ja
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 filed Critical
Priority to JP9009383U priority Critical patent/JPS59194796U/ja
Publication of JPS59194796U publication Critical patent/JPS59194796U/ja
Application granted granted Critical
Publication of JPH0432719Y2 publication Critical patent/JPH0432719Y2/ja
Granted legal-status Critical Current

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Landscapes

  • Electronic Switches (AREA)
JP9009383U 1983-06-13 1983-06-13 キ−アサイナの押鍵検出装置 Granted JPS59194796U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9009383U JPS59194796U (ja) 1983-06-13 1983-06-13 キ−アサイナの押鍵検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9009383U JPS59194796U (ja) 1983-06-13 1983-06-13 キ−アサイナの押鍵検出装置

Publications (2)

Publication Number Publication Date
JPS59194796U JPS59194796U (ja) 1984-12-25
JPH0432719Y2 true JPH0432719Y2 (ru) 1992-08-06

Family

ID=30219996

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9009383U Granted JPS59194796U (ja) 1983-06-13 1983-06-13 キ−アサイナの押鍵検出装置

Country Status (1)

Country Link
JP (1) JPS59194796U (ru)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3979168B2 (ja) * 2002-04-26 2007-09-19 ヤマハ株式会社 鍵盤楽器の押鍵検出装置における発光部構造
JP2016086239A (ja) * 2014-10-23 2016-05-19 ファナック株式会社 キーボード

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897520A (ru) * 1972-02-22 1973-12-12
JPS5150477A (ru) * 1974-10-30 1976-05-04 Oki Electric Ind Co Ltd
JPS55111991A (en) * 1979-02-21 1980-08-29 Nippon Musical Instruments Mfg Detector for key in electronic musical instrument

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4897520A (ru) * 1972-02-22 1973-12-12
JPS5150477A (ru) * 1974-10-30 1976-05-04 Oki Electric Ind Co Ltd
JPS55111991A (en) * 1979-02-21 1980-08-29 Nippon Musical Instruments Mfg Detector for key in electronic musical instrument

Also Published As

Publication number Publication date
JPS59194796U (ja) 1984-12-25

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