JPS6040626B2 - acoustic circuit - Google Patents
acoustic circuitInfo
- Publication number
- JPS6040626B2 JPS6040626B2 JP13022179A JP13022179A JPS6040626B2 JP S6040626 B2 JPS6040626 B2 JP S6040626B2 JP 13022179 A JP13022179 A JP 13022179A JP 13022179 A JP13022179 A JP 13022179A JP S6040626 B2 JPS6040626 B2 JP S6040626B2
- Authority
- JP
- Japan
- Prior art keywords
- output
- comparator
- circuit
- repetitive
- sound
- 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
Links
Landscapes
- Oscillators With Electromechanical Resonators (AREA)
Description
【発明の詳細な説明】
本発明は、繰返し減衰音発振回路の出力をコンパレータ
の十入力端子に入力し、前記コンパレ−夕の一入力端子
に入力する基準電圧を変化し、前記コンパレータの出力
に繰返し減衰音発振回路の出力又は繰返し減衰音発振回
路の出力の一部のパルスのみを出力する如くして成るこ
とを特徴とする音響回路に係るものである。Detailed Description of the Invention The present invention inputs the output of a repetitive decay sound oscillator circuit to ten input terminals of a comparator, changes the reference voltage input to one input terminal of the comparator, and changes the output of the comparator to The present invention relates to an acoustic circuit characterized in that it is configured to output only the output of a repetitive decay sound oscillation circuit or a part of the pulses of the output of a repetitive decay sound oscillation circuit.
本発明の目的をするところは、コンパレータの一入力端
子の電位を可変制御して１個の発振回路により異なる音
色を出すようにすることにある。An object of the present invention is to variably control the potential of one input terminal of a comparator so that one oscillation circuit can produce different tones.
従来の音響回路は、第１図のように、繰返し減衰音発振
回路１と間欠音発振回路２とを設け、これらを入力制御
回路３により制御していずれか一方の出力をトランジス
タＴｒを介してスピーカＳＰにより発音するようにして
いた。即ち、ピンポン音が必要な場合には繰返し減衰音
発振回路１を動作させ、カツコッ音が必要な場合は間欠
音発振回路２を動作させてし、た。したがって、２個の
発振回路が必要で、構成が複雑である上、高価になると
いう欠点を有していた。本発明はかかる点に鑑みてなさ
れたもので、以下実施例により詳細に説明する。As shown in FIG. 1, a conventional acoustic circuit is provided with a repetitive decay sound oscillation circuit 1 and an intermittent sound oscillation circuit 2, which are controlled by an input control circuit 3, and the output of either one is transmitted through a transistor Tr. The sound was made to be produced by speaker SP. That is, when a ping-pong sound is required, the repetitive decay sound oscillation circuit 1 is operated, and when a click sound is required, the intermittent sound oscillation circuit 2 is operated. Therefore, two oscillation circuits are required, and the structure is complicated and expensive. The present invention has been made in view of this point, and will be explained in detail below with reference to Examples.
第２図において、１は繰返し減衰音発振回路で、その出
力をコンパレータＣＰの十入力端子に入力しておく、コ
ンパレータＣＰの一入力端子に抵抗Ｒ，，Ｒ２，Ｒ３に
より分圧された基準電圧を入力するようにし、抵抗友３
に並列にトランジスタＴｒ２を接続しておく、コンパレ
ータＣＰの出力はトランジスタＴｒ，を介してスピーカ
ＳＰに接続しておく。In Figure 2, 1 is a repetitive decay sound oscillator circuit whose output is input to the ten input terminals of the comparator CP.The reference voltage divided by the resistors R, R2, and R3 is input to one input terminal of the comparator CP. and enter resistance friend 3
The output of the comparator CP is connected to the speaker SP via the transistor Tr.
今、トランジスタＴｒ２がオンのときのコンパレータＣ
Ｐの一入力端子に入力する基準電圧ＶＲ，を第３図ａの
レベルとし、トランジスタＴｒ２がオフのときの基準鷺
圧ＶＲ２を第３図ａのレベルとすると、トランジスタＴ
ｒ２がオンのときはコンパレータＣＰの出力は第３図ｂ
のようになり、スピーカＳＲからはピンポン音が得られ
る。Comparator C when transistor Tr2 is on now
If the reference voltage VR input to one input terminal of P is set to the level shown in Fig. 3a, and the reference voltage VR2 when the transistor Tr2 is off is set to the level shown in Fig. 3a, then the transistor T
When r2 is on, the output of comparator CP is as shown in Fig. 3b.
As a result, a ping-pong sound is obtained from speaker SR.
又、トランジスタＴｒ２をオフにすると、コンパレータ
ＣＰの出力は第３図Ｃのようになり、スピーカＳＰから
カツコッ音が得られる。第４図はコンパレータＣＰの−
入力端子に抵抗Ｒ，，Ｒ２の接続点を接続し、基準電圧
入力端子Ｔに第５図ａのような矩形波電圧を印加するよ
うにしたもので、矩形波電圧がＨレベルのきカッコッ音
を発生し、Ｌレベルのときピンポン音を発することがで
きる。Further, when the transistor Tr2 is turned off, the output of the comparator CP becomes as shown in FIG. 3C, and a clicking sound is obtained from the speaker SP. Figure 4 shows the − of comparator CP.
The connecting point of resistors R, R2 is connected to the input terminal, and a rectangular wave voltage as shown in Figure 5a is applied to the reference voltage input terminal T. When the rectangular wave voltage reaches H level, a cracking sound occurs. It can generate a ping-pong sound when it is at L level.
基準電圧入力端子Ｔに印加する電圧を第５図ｂ〜ｄの波
形としても同様に異なる音が得られる。叙上のように本
発明は、繰返し減衰音発振回路の出力をコンパレータの
十入力端子に入力し、前記コンパレータの一入力端子に
入力する基準電圧を変化し、前記コンパレータの出力又
は繰返し減衰音発振回路の出力又は繰返し減衰音発振回
路の出力の一部のパルスのみを出力する如くしたから、
１個の発振回路により異なる音色を出すことができ、構
成簡単で安価にできるという効果を奏するものである。Similarly, different sounds can be obtained even if the voltage applied to the reference voltage input terminal T has the waveforms shown in FIGS. 5b to 5d. As described above, the present invention inputs the output of a repetitive decay sound oscillation circuit to ten input terminals of a comparator, changes the reference voltage input to one input terminal of the comparator, and controls the output of the comparator or the repetitive decay sound oscillation circuit. Since only a part of the pulses of the output of the circuit or the output of the repetitive decay sound oscillation circuit are output,
Different tones can be produced with one oscillation circuit, and the structure is simple and inexpensive.
第１図は従来の音響回路の回路図、第２図は本発明の一
実施例の回路図、第３図ａ〜ｃは同上の要部信号波形図
、第４図は本発明の他の実施例の回路図、第５図ａ〜ｄ
はそれぞれ同上の基準電圧入力端子に印加する電圧波形
図である。
１．．・．．・繰返し減衰音発振回路、ＣＰ・・・・・
・コンパレータ。
第１図
第２図
第３図
第４図
第５図Fig. 1 is a circuit diagram of a conventional acoustic circuit, Fig. 2 is a circuit diagram of an embodiment of the present invention, Figs. Circuit diagram of the embodiment, Fig. 5 a to d
are voltage waveform diagrams respectively applied to the reference voltage input terminal same as above. 1. ．．・．． ．．・Repetitive decay sound oscillation circuit, CP...
·comparator. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5
Claims (1)
力端子に入力し、前記コンパレータの−入力端子に入力
する基準電圧を変化し、前記コンパレータの出力に繰返
し減衰音発振回路の出力又は繰返し減衰音発振回路の出
力の一部のパルスのみを出力する如くして成ることを特
徴とする音響回路。1. Input the output of the repetitive decay sound oscillation circuit to the + input terminal of the comparator, change the reference voltage input to the - input terminal of the comparator, and input the output of the repetitive decay sound oscillation circuit or the repetitive decay sound oscillation to the output of the comparator. An acoustic circuit characterized in that it is configured to output only a part of the pulses of the output of the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13022179A JPS6040626B2 (en) | 1979-10-09 | 1979-10-09 | acoustic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13022179A JPS6040626B2 (en) | 1979-10-09 | 1979-10-09 | acoustic circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5654495A JPS5654495A (en) | 1981-05-14 |
| JPS6040626B2 true JPS6040626B2 (en) | 1985-09-11 |
Family
ID=15028975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13022179A Expired JPS6040626B2 (en) | 1979-10-09 | 1979-10-09 | acoustic circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6040626B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2680834B2 (en) * | 1988-06-02 | 1997-11-19 | 本田技研工業株式会社 | Friction pad for disc brake |
-
1979
- 1979-10-09 JP JP13022179A patent/JPS6040626B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5654495A (en) | 1981-05-14 |
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