JPS63155195U - - Google Patents
Info
- Publication number
- JPS63155195U JPS63155195U JP4761887U JP4761887U JPS63155195U JP S63155195 U JPS63155195 U JP S63155195U JP 4761887 U JP4761887 U JP 4761887U JP 4761887 U JP4761887 U JP 4761887U JP S63155195 U JPS63155195 U JP S63155195U
- Authority
- JP
- Japan
- Prior art keywords
- string
- latch circuit
- trigger switch
- vibration
- state
- 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
Links
Description
第１図はこの考案の一実施例に係る電子弦楽器
本体の全体斜視図、第２図は実施例で使用するフ
レツトスイツチの構成例を示す断面図、第３図は
実施例で使用する弦トリガースイツチの構成例を
示す断面図、第４図は実施例の全体回路構成ブロ
ツク図、第５図は第４図のマイクロコンピユータ
の全体の動作を示すフローチヤート、第６図はこ
の考案の動作の理解に適した波形図、第７図は第
４図に示すラツチ回路の回路構成図、第８図はマ
イクロコンピユータの使用するレジスタの一部を
示す図、第９図は第５図に示す弦トリガー検出の
詳細なフローチヤート、第１０図は第９図に示す
トリガーオン処理の詳細なフローチヤート、第１
１図はラツチ回路のリセツトに関するフローチヤ
ートである。
４…弦、３０…マイクロコンピユータ、４０…
ラツチ回路、ＴＳＷ…弦トリガースイツチ、ＲＳ
ＴＣＴ１〜ＲＳＴＣＴ６…リセツトカウンタ。
Fig. 1 is an overall perspective view of the main body of an electronic stringed instrument according to an embodiment of this invention, Fig. 2 is a sectional view showing an example of the configuration of a frett switch used in the embodiment, and Fig. 3 is a string trigger switch used in the embodiment. 4 is a block diagram of the overall circuit configuration of the embodiment, FIG. 5 is a flowchart showing the overall operation of the microcomputer shown in FIG. 4, and FIG. 6 is an understanding of the operation of this invention. Figure 7 is a diagram showing the circuit configuration of the latch circuit shown in Figure 4, Figure 8 is a diagram showing a part of the register used by the microcomputer, Figure 9 is a diagram showing the string trigger shown in Figure 5. A detailed flowchart of detection, FIG. 10, is a detailed flowchart of trigger-on processing shown in FIG.
FIG. 1 is a flowchart for resetting the latch circuit. 4... string, 30... microcomputer, 40...
Latch circuit, TSW...string trigger switch, RS
TCT1 to RSTCT6...Reset counter.
Claims (1)
、上記弦の振動開始に伴つてオンオフする弦トリ
ガースイツチとを有し、上記弦トリガースイツチ
の状態に基づいて上記弦の振動の開始を検出して
楽音の発音を開始するタイプの電子弦楽器におい
て、 上記弦トリガースイツチのオン出力によりセツ
トされるラツチ回路と、 上記ラツチ回路の状態をサンプルし、その状態
がリセツト状態に変化したことを検知することに
より、上記の弦の振動の開始を検出する弦振動開
始検出手段と、 上記弦振動開始検出手段による弦振動開始の検
出時点から所定の時間が経過した時に、上記ラツ
チ回路をリセツトするリセツト手段と、 を有することを特徴とする電子弦楽器の弦トリ
ガー検出装置。[Claims for Utility Model Registration] A musical instrument comprising a string stretched on the body of the musical instrument, and a string trigger switch that is provided on the string and turns on and off as the string starts to vibrate, based on the state of the string trigger switch. In an electronic stringed instrument of the type that detects the start of vibration of the strings and starts producing musical tones, we sampled the latch circuit that is set by the ON output of the string trigger switch and the state of the latch circuit. a string vibration start detection means for detecting the start of string vibration by detecting a change to the reset state; A string trigger detection device for an electronic stringed instrument, comprising: a reset means for resetting the latch circuit.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987047618U JP2527651Y2 (en) | 1987-03-30 | 1987-03-30 | Pluck detection device |
| US07/171,883 US4919031A (en) | 1987-03-24 | 1988-03-21 | Electronic stringed instrument of the type for controlling musical tones in response to string vibration |
| US07/464,430 US5094137A (en) | 1987-03-24 | 1990-01-12 | Electronic stringed instrument with control of musical tones in response to a string vibration |
| US07/668,968 US5113742A (en) | 1987-03-24 | 1991-03-13 | Electronic stringed instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987047618U JP2527651Y2 (en) | 1987-03-30 | 1987-03-30 | Pluck detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63155195U true JPS63155195U (en) | 1988-10-12 |
| JP2527651Y2 JP2527651Y2 (en) | 1997-03-05 |
Family
ID=30868391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987047618U Expired - Lifetime JP2527651Y2 (en) | 1987-03-24 | 1987-03-30 | Pluck detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2527651Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5474306A (en) * | 1977-11-26 | 1979-06-14 | Roland Corp | High speed envelope detector |
| JPS6266295A (en) * | 1985-09-19 | 1987-03-25 | カシオ計算機株式会社 | electronic musical instruments |
-
1987
- 1987-03-30 JP JP1987047618U patent/JP2527651Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5474306A (en) * | 1977-11-26 | 1979-06-14 | Roland Corp | High speed envelope detector |
| JPS6266295A (en) * | 1985-09-19 | 1987-03-25 | カシオ計算機株式会社 | electronic musical instruments |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2527651Y2 (en) | 1997-03-05 |
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