JPH0260377U - - Google Patents
Info
- Publication number
- JPH0260377U JPH0260377U JP1988140224U JP14022488U JPH0260377U JP H0260377 U JPH0260377 U JP H0260377U JP 1988140224 U JP1988140224 U JP 1988140224U JP 14022488 U JP14022488 U JP 14022488U JP H0260377 U JPH0260377 U JP H0260377U
- Authority
- JP
- Japan
- Prior art keywords
- audio
- circuit
- control circuit
- audio control
- signal
- 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
- 230000005236 sound signal Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案を実施した音声ミユート回路の
ブロツク図である。第２図は従来例のブロツク図
である。
１……判別回路、２……マイクロコンピユータ
、３……音声コントロール回路、４……音声出力
回路、５……スピーカ。
FIG. 1 is a block diagram of an audio mute circuit embodying the present invention. FIG. 2 is a block diagram of a conventional example. 1...Discrimination circuit, 2...Microcomputer, 3...Audio control circuit, 4...Audio output circuit, 5...Speaker.
Claims (1)
判別回路と、音声コントロール回路と該音声コン
トロール回路で制御を受けた音声信号によりスピ
ーカや駆動する音声出力回路と、前記音声コント
ロール回路に音量制御のための制御信号を与える
と共に前記判別回路が同期信号なしと判別したと
き前記音声コントロール回路及び前記音声出力回
路の少くとも一方にミユートをかけるマイクロコ
ンピユータと、から成る音声ミユート回路。 a discrimination circuit for determining the presence or absence of a synchronization signal included in a video signal; an audio control circuit; an audio output circuit for driving a speaker or the like by the audio signal controlled by the audio control circuit; and the audio control circuit for volume control. a microcomputer that applies a mute to at least one of the audio control circuit and the audio output circuit when the discrimination circuit determines that there is no synchronizing signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988140224U JPH0260377U (en) | 1988-10-27 | 1988-10-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988140224U JPH0260377U (en) | 1988-10-27 | 1988-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0260377U true JPH0260377U (en) | 1990-05-02 |
Family
ID=31404202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988140224U Pending JPH0260377U (en) | 1988-10-27 | 1988-10-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0260377U (en) |
-
1988
- 1988-10-27 JP JP1988140224U patent/JPH0260377U/ja active Pending
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