JPS59161193U - Key switch device for electronic musical instruments - Google Patents

Key switch device for electronic musical instruments

Info

Publication number
JPS59161193U
JPS59161193U JP5446683U JP5446683U JPS59161193U JP S59161193 U JPS59161193 U JP S59161193U JP 5446683 U JP5446683 U JP 5446683U JP 5446683 U JP5446683 U JP 5446683U JP S59161193 U JPS59161193 U JP S59161193U
Authority
JP
Japan
Prior art keywords
key
contact circuit
pressed
electronic musical
key switch
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
JP5446683U
Other languages
Japanese (ja)
Other versions
JPS6336393Y2 (en
Inventor
山田　恒雄
Original Assignee
株式会社ケンウッド
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 株式会社ケンウッド filed Critical 株式会社ケンウッド
Priority to JP5446683U priority Critical patent/JPS59161193U/en
Publication of JPS59161193U publication Critical patent/JPS59161193U/en
Application granted granted Critical
Publication of JPS6336393Y2 publication Critical patent/JPS6336393Y2/ja
Granted legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来のキー押さえ速さ検出用回路を示す回路−
１第２図はその動作説明用波形図、第３図は本考案の概
略の説明図、第４図は本考案の−　　　　　・実施例を
示す回路図である。Figure 1 shows a conventional key pressing speed detection circuit.
1. FIG. 2 is a waveform diagram for explaining its operation, FIG. 3 is a schematic explanatory diagram of the present invention, and FIG. 4 is a circuit diagram showing an embodiment of the present invention.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] キーを押している速量で導通する第１の接点回路とキー
を押した状態で導通する第２の接点回路の２つめ接点回
路をそれぞれ有する複数個のキースイッチを備え、前記
第１の接点回路の一方の接点すべてｉ共通に発振器の出
力に接続すると共に、他方の接点すべてを共通にカウン
タのクロック入力に接続し、前記第２の接点回路は各接
点をマトリクス状に接続すると共に、制御部によってい
ずれのキーが押されたかを認識するように構成され、前
記第２の接点回路と制御部によっていずれのキーが押さ
れたかを認識すると同時に、押されたキーの速さによっ
て決まる前記第１の接点回路の導通時間中前記発振器か
らのクロックパルスがカウンタに入力され、該カウンー
タの計数値を認識する　−ことにより押されたキーの速
さを認識するように構成された電子楽器のキースイッチ
装置。a plurality of key switches each having a first contact circuit that conducts when the key is pressed and a second contact circuit that conducts when the key is pressed; All of the contacts of i are commonly connected to the output of the oscillator, and all of the other contacts are commonly connected to the clock input of the counter, and the second contact circuit connects the contacts in a matrix, and is configured to recognize which key has been pressed by the second contact circuit and the control unit, and at the same time recognize which key has been pressed by the second contact circuit and the control unit. A key switch of an electronic musical instrument configured to recognize the speed of a pressed key by inputting a clock pulse from the oscillator to a counter during the conduction time of the contact circuit and recognizing the counted value of the counter. Device.
JP5446683U 1983-04-12 1983-04-12 Key switch device for electronic musical instruments Granted JPS59161193U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5446683U JPS59161193U (en) 1983-04-12 1983-04-12 Key switch device for electronic musical instruments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5446683U JPS59161193U (en) 1983-04-12 1983-04-12 Key switch device for electronic musical instruments

Publications (2)

Publication Number Publication Date
JPS59161193U true JPS59161193U (en) 1984-10-29
JPS6336393Y2 JPS6336393Y2 (en) 1988-09-27

Family

ID=30184807

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5446683U Granted JPS59161193U (en) 1983-04-12 1983-04-12 Key switch device for electronic musical instruments

Country Status (1)

Country Link
JP (1) JPS59161193U (en)

Also Published As

Publication number Publication date
JPS6336393Y2 (en) 1988-09-27

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