JPH0362398U - - Google Patents

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Publication number
JPH0362398U
JPH0362398U JP12229589U JP12229589U JPH0362398U JP H0362398 U JPH0362398 U JP H0362398U JP 12229589 U JP12229589 U JP 12229589U JP 12229589 U JP12229589 U JP 12229589U JP H0362398 U JPH0362398 U JP H0362398U
Authority
JP
Japan
Prior art keywords
light
key
receives
output signal
generation
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
JP12229589U
Other languages
English (en)
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 JP12229589U priority Critical patent/JPH0362398U/ja
Publication of JPH0362398U publication Critical patent/JPH0362398U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第１図は本考案の１実施例の側面図、第２図は
その要部の平面図、第３図はそのタイムチヤート
である。 １……白鍵、２……黒鍵、４……反射板、５…
…光源、６，６ａ〜６ｄ……受光器。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 鍵の裏面に反射板を設け、鍵盤フレームに
    前記反射板に光を入射させる光源及びその反射光
    を受光する受光器を設け、該受光器は鍵の押下初
    期に順次受光する一対の受光素子から成り、該一
    対の受光素子の受光時における出力信号の発生の
    時間間隔から鍵のイニシヤルタツチを検出するこ
    とを特徴とする電子楽器の鍵盤装置。 (2) 前記受光器は、鍵の押下後期に受光する受
    光素子を具備し、該受光素子の受光時の出力信号
    の発生からアフタタツチを検出することを特徴と
    する請求項１記載の電子楽器の鍵盤装置。
JP12229589U 1989-10-20 1989-10-20 Pending JPH0362398U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12229589U JPH0362398U (ja) 1989-10-20 1989-10-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12229589U JPH0362398U (ja) 1989-10-20 1989-10-20

Publications (1)

Publication Number Publication Date
JPH0362398U true JPH0362398U (ja) 1991-06-18

Family

ID=31670301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12229589U Pending JPH0362398U (ja) 1989-10-20 1989-10-20

Country Status (1)

Country Link
JP (1) JPH0362398U (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5737076A (en) * 1980-08-16 1982-03-01 Diehl Device for elastically supporting wheel for travelling device of track car
JPS6017795A (ja) * 1983-07-12 1985-01-29 日本電気株式会社 鍵盤装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5737076A (en) * 1980-08-16 1982-03-01 Diehl Device for elastically supporting wheel for travelling device of track car
JPS6017795A (ja) * 1983-07-12 1985-01-29 日本電気株式会社 鍵盤装置

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