JPS6140092U - Audio equipment with microphone jack - Google Patents
Audio equipment with microphone jackInfo
- Publication number
- JPS6140092U JPS6140092U JP12507484U JP12507484U JPS6140092U JP S6140092 U JPS6140092 U JP S6140092U JP 12507484 U JP12507484 U JP 12507484U JP 12507484 U JP12507484 U JP 12507484U JP S6140092 U JPS6140092 U JP S6140092U
- Authority
- JP
- Japan
- Prior art keywords
- microphone jack
- circuit system
- microphone
- terminals
- power
- 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
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の一実施例を示すブロック回路図、第２
図は第１図のエコー回路近傍を取り出して示すブロック
回路図である。
１・・・ステレオマイクジャック、２・・・アース端子
、３・・・左チャンネル用接続端子、４・・・右チャン
ネル用接続端子、６・・・マイクアンプ、７・・・エコ
ー回路、１３・・・スイッチングトランジスタ、１５・
・・電源端子、３３・・・ＢＢＤ （パケット・ブリゲ
ード・デバイス）、３６・・・発振器、４０・・・モノ
ラルマイクプラグ。Fig. 1 is a block circuit diagram showing one embodiment of the present invention;
This figure is a block circuit diagram showing the vicinity of the echo circuit shown in FIG. 1. 1... Stereo microphone jack, 2... Earth terminal, 3... Connection terminal for left channel, 4... Connection terminal for right channel, 6... Microphone amplifier, 7... Echo circuit, 13 ... switching transistor, 15.
...Power terminal, 33...BBD (packet brigade device), 36...oscillator, 40...monaural microphone plug.
Claims (1)
オマイクジャンクと、このステレオマイクジャックの上
記左右各チャンネル用端子の一方の端子からの音響信号
が入力されるモノラルマイオアンプ回路系と、上記左右
各チャンネル用端子の他方の端子の状態に応じてスイッ
チング動作し上記マイクアンプ回路系への電源をＯＮ，
ＯＦＦ制御するスイッチング手段とを少なくとも備え、
上記ステレオマイクジャックにプラグが挿入されないと
きには上記スイッチング手段により上記マイクアンプ回
路系への電源をＯＦＦ状態とし、上記′ステレオマイク
ジャックにプラグが挿入されたときには上記アース端子
と上記他方の端子とが短絡状態となることにより上記ス
イッチング手段がスイッチング動作して上記マイクアン
プ回路系への電源をＯＮ状態とすることを特徴とするマ
イクジャック付音響機器。A stereo microphone jack having a ground terminal and terminals for left and right channels, a monaural myoamp circuit system into which an audio signal is input from one of the terminals for each of the left and right channels of this stereo microphone jack, and the terminals for each of the left and right channels. Switching operation is performed according to the state of the other terminal of the switch to turn on the power to the microphone amplifier circuit system.
At least a switching means for OFF control,
When a plug is not inserted into the stereo microphone jack, the switching means turns off the power to the microphone amplifier circuit system, and when a plug is inserted into the stereo microphone jack, the ground terminal and the other terminal are short-circuited. An audio device with a microphone jack, wherein the switching means performs a switching operation to turn on the power to the microphone amplifier circuit system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12507484U JPS6140092U (en) | 1984-08-17 | 1984-08-17 | Audio equipment with microphone jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12507484U JPS6140092U (en) | 1984-08-17 | 1984-08-17 | Audio equipment with microphone jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6140092U true JPS6140092U (en) | 1986-03-13 |
Family
ID=30683759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12507484U Pending JPS6140092U (en) | 1984-08-17 | 1984-08-17 | Audio equipment with microphone jack |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6140092U (en) |
-
1984
- 1984-08-17 JP JP12507484U patent/JPS6140092U/en active Pending
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