JPS5925597U

JPS5925597U - electronic musical instruments

Info

Publication number: JPS5925597U
Application number: JP11935382U
Authority: JP
Inventors: 潔市川
Original assignee: ヤマハ株式会社
Priority date: 1982-08-05
Filing date: 1982-08-05
Publication date: 1984-02-17

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

[Brief explanation of drawings]

第１図はこの考案が適用された電子楽器の一例を示す斜
視図、第２図はこの考案による電子楽器の一実施例を示
すブロック図、第３図は第２図のデータ多重化回路から
時分割的に出力されるデータの内容の一例を各タイムス
ロット毎に示す図、第４図は第２図における移調用キー
コード変換器の詳細構成例を示す回路図、第５図は第２
図における楽音形成回路の詳細構成例を示す回路図であ
る。１・・・・・・シャープスイッチ、２・・・・・・フラ
ットスイッチ、３・・−・・・表示器、５・・・・・・
スピーカ、１０・・・・・・鍵盤、１２・・・・・・発
音割当て回路、１３・・・・・・データ多重化回路、１
４・・・・・・楽音形成回路、１５・・・・・・移調用
キーコード変換器、２１・・・・・・アップダウンカウ
ンタ。Fig. 1 is a perspective view showing an example of an electronic musical instrument to which this invention is applied, Fig. 2 is a block diagram showing an embodiment of an electronic musical instrument to which this invention is applied, and Fig. 3 is a diagram showing the data multiplexing circuit of Fig. 2. A diagram showing an example of the content of data output in a time-division manner for each time slot, FIG. 4 is a circuit diagram showing a detailed configuration example of the transposing key code converter in FIG.
FIG. 2 is a circuit diagram showing a detailed configuration example of the musical tone forming circuit shown in the figure. 1... Sharp switch, 2... Flat switch, 3... Display, 5...
Speaker, 10... Keyboard, 12... Sound generation assignment circuit, 13... Data multiplexing circuit, 1
4...Tone forming circuit, 15...Key code converter for transposition, 21...Up/down counter.

Claims

[Scope of utility model registration request]

(1) A key information generating means for generating key information representing a key selected by a key press, etc., a musical tone generating means for generating a musical tone based on the key information generated from the key information generating means, and a transposing switch. counting means for counting the number of switch operations in the transposition switch means; and transposition control means for changing the pitch of the musical tone generated by the musical tone generation means in accordance with the count value of the counting means. electronic musical instrument.

(2) The electronic musical instrument according to claim 1, wherein the transposition switch means is two self-resetting switches that cause the counting means to count up and count down.

(3) The transposition control means changes the key information generated by the key information generation means based on the count value of the transposition switch means and adds the changed key information to the musical tone generation means (Claim 1) Electronic musical instruments listed in section.