JPS6172940U - - Google Patents
Info
- Publication number
- JPS6172940U JPS6172940U JP15862384U JP15862384U JPS6172940U JP S6172940 U JPS6172940 U JP S6172940U JP 15862384 U JP15862384 U JP 15862384U JP 15862384 U JP15862384 U JP 15862384U JP S6172940 U JPS6172940 U JP S6172940U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- output
- trigger pulse
- rise
- time constant
- 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
Links
- 238000001514 detection method Methods 0.000 claims 3
- 230000005236 sound signal Effects 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Television Receiver Circuits (AREA)
- Noise Elimination (AREA)
Description
第１図は本実施例回路の回路図、第２図は第１
図の要部波形図である。
３……パルス作成回路、４，５……第１、第２
トリガパルス作成回路、６……モノマルチ、７…
…時定数回路、Ｄ３……第３ダイオード（スイツ
チ素子）。
Figure 1 is a circuit diagram of this example circuit, and Figure 2 is a circuit diagram of the circuit of this embodiment.
FIG. 3...Pulse creation circuit, 4, 5...1st, 2nd
Trigger pulse creation circuit, 6...mono multi, 7...
...Time constant circuit, D3 ...Third diode (switch element).
Claims (1)
と、該検出回路出力の立上りに基づいて第１トリ
ガパルスを作成する第１リガパルス作成回路と、
前記検出回路出力の立上りに基づいて第２トリガ
パルスを作成する第２トリガパルス作成回路と、
前記第１及び第２トリガパルスによりトリガされ
る単安定マルチバイブレータと、該単安定マルチ
バイブレータの準安定期間を決定する時定数回路
と、前記検出回路出力により制御され、前記時定
数回路の時定数を切換えるスイツチ素子とからな
り、前記単安定マルチバイブレータ出力により音
声信号をミユートすることを特徴とする音声ミユ
ート回路。 a circuit that detects the rise and fall of a power supply voltage; a first trigger pulse creation circuit that creates a first trigger pulse based on the rise of the output of the detection circuit;
a second trigger pulse creation circuit that creates a second trigger pulse based on the rise of the detection circuit output;
a monostable multivibrator triggered by the first and second trigger pulses; a time constant circuit that determines a metastable period of the monostable multivibrator; and a time constant of the time constant circuit that is controlled by the output of the detection circuit. 1. An audio mute circuit comprising a switch element for switching an audio mute circuit, and muting an audio signal using the output of the monostable multivibrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15862384U JPS6172940U (en) | 1984-10-19 | 1984-10-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15862384U JPS6172940U (en) | 1984-10-19 | 1984-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6172940U true JPS6172940U (en) | 1986-05-17 |
Family
ID=30716602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15862384U Pending JPS6172940U (en) | 1984-10-19 | 1984-10-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6172940U (en) |
-
1984
- 1984-10-19 JP JP15862384U patent/JPS6172940U/ja active Pending