JPS5877397A - Detachable sound device - Google Patents
Detachable sound deviceInfo
- Publication number
- JPS5877397A JPS5877397A JP56176096A JP17609681A JPS5877397A JP S5877397 A JPS5877397 A JP S5877397A JP 56176096 A JP56176096 A JP 56176096A JP 17609681 A JP17609681 A JP 17609681A JP S5877397 A JPS5877397 A JP S5877397A
- Authority
- JP
- Japan
- Prior art keywords
- main body
- small
- audio device
- ground
- amplifier
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Details Of Audible-Bandwidth Transducers (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
【発明の詳細な説明】
本発明はヘッドホン受聴専用の小型音響機器とスピーカ
を主体とする機器本体とを着脱自在に構成した着脱式音
響装置に関するものでありごその目的とするところは上
記小型音響機器と上記機器本体との合体時に小型音響機
器のヘッドホン出力やＨ記機器本体のスピーカ出力にノ
イズが発生することを防止することができる着脱式音響
装置を提供することにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a detachable audio device in which a compact audio device exclusively for headphone listening and a device body mainly consisting of a speaker are detachably configured. It is an object of the present invention to provide a detachable audio device capable of preventing noise from being generated in the headphone output of a small audio device or the speaker output of the device main body when the device and the device main body are combined.
一般に、ヘッドホン受聴専用のテープメカニズムを主体
とする小型音響機器と、スピーカを主体とする機器本体
とを着脱自在に構成する場合、上記小型音響機器にはテ
ープメカニズムによる再生信号をヘッドホン受聴するた
めに増幅する増幅器が設けられ、上記機器本体には上記
小型音響機器からのテープメカニズムによる再生信号を
スピーカ又はヘッドホンで受聴するために増幅する増幅
器が設けられる。そして、上記小型音響機器は上記機器
本体から分離されて携帯して使用し得るように電源とし
ての電池が設けられ、上品ピ機器本体は上記小型音響機
器から分離されて七牡自体がアンフ”付のスピーカシス
テムとして機能するよう電源が設けられる。しかしなが
ら、上述した着脱式音響装置では上記機器本体と一ヒ記
小型音響機器を合体した時、上記小型音響ｍｈの電源と
しての電池を切り離して上記機器本体の電源を上記小型
音響機器の電源として共用化しようとすると、信号の流
れおよび電源電流の流扛の関係で異常現象、たとえばモ
ータノイズ、ムＣハム、電源のオン−オフ時の異常音等
がヘッドホン出力やスピーカ出力に発生するという問題
がめった。In general, when a small audio device mainly has a tape mechanism for listening to headphones and a main body of the device mainly consists of speakers, which are configured to be detachable, the small audio device has a tape mechanism that allows playback signals to be received by headphones. An amplifier for amplifying the audio signal is provided in the main body of the device, and an amplifier for amplifying the reproduced signal from the small audio device by the tape mechanism is installed in order to listen to the signal through a speaker or headphones. The small audio device is separated from the main body of the device and is equipped with a battery as a power source so that it can be carried and used. However, in the above-mentioned detachable audio device, when the main body of the device and the small-sized audio device described in 1-1 are combined, the battery as the power source of the small-sized acoustic mh is disconnected and the device is powered on. If you try to share the main unit's power supply as a power supply for the above-mentioned small audio equipment, abnormal phenomena may occur due to the relationship between signal flow and power supply current flow, such as motor noise, hum, abnormal noise when turning the power on and off, etc. I often had a problem where this occurred on the headphone output or speaker output.
本発明はこのような従来の欠点を解消するものであり、
小型音響機器と機器本俸の着脱状況を検出する着脱検出
機構を設け、この着脱検出機構に連動するスイッチで上
記小型音響機器および機器本体に設けた電源のいずれか
一万を切り罐して他方の電源を共用するように切換える
と共に一ヒ記機滞本体のアース回路を電源部と増幅器部
で公離し、その分屋した」二記機器本体の増幅器側の“
アース回路を上記小型音響機器のアース回路で共用する
ように構成したものである。The present invention solves these conventional drawbacks,
A detachment detection mechanism is provided to detect the attachment/disconnection status of the small audio equipment and the device itself, and a switch linked to this attachment/detachment detection mechanism is used to turn off either the power supply installed in the small audio equipment or the device itself, and turn off the power to the other. In addition to switching to share the power supply, the grounding circuit of the main body of the device described in 1. was separated between the power supply section and the amplifier section, and the amplifier side of the main body of the device described in 2.
The ground circuit is configured to be shared by the ground circuit of the above-mentioned small audio equipment.
以「、本発明の着脱式音響装置の実施例について説明す
る。第１図および第２図は本発明の一笑施例を示してお
り、図中、１はヘッドホン受聴専用のテーアメカニズム
を主体とする小型音響機器で、あり、その上面部に電源
スィッチの操作釦２、アース”メカニズムの操作釦３群
、およびヘッドホンジャック４が設けられている。５は
スピーカ６゜７を主体とする機器本体であり、その上面
部に電源スィッチの操作釦８が設けられている。上記機
器本体６はその中央部に上記小型音響機ｖｉｇｉを収納
するための凹部１０が設けられており、その凹部１０内
に電源および信号接続用のコネクタ１１−１．１１−２
．１１−３．１１−４が設けられると共に着脱検出片１
２が設けらｔている。上記機器本体５の凹部に着脱自在
な小型音響機器１には、上記コネクタ１１−１．１１−
２．１１−３ 。Hereinafter, an embodiment of the detachable audio device of the present invention will be described. Figs. 1 and 2 show a simple embodiment of the present invention, and in the figure, 1 is mainly composed of a tear mechanism exclusively for headphone listening. This is a small audio device with a power switch operation button 2, a group of three earth mechanism operation buttons, and a headphone jack 4 provided on its top surface. Reference numeral 5 denotes a main body of the device mainly including a speaker 6.7, and an operation button 8 for a power switch is provided on the top surface thereof. The device main body 6 is provided with a recess 10 in its center for housing the small acoustic device vigi, and within the recess 10 are connectors 11-1, 11-2 for power and signal connections.
．． 11-3.11-4 is provided and the attachment/detachment detection piece 1
2 is provided. The small audio equipment 1, which can be attached to and detached from the recess of the equipment body 5, includes the connector 11-1, 11-
2.11-3.
１１−４にそれぞれ対応するようにコネクタ１３−１．
１３−２．１３−３．１３−４が設けられており、上記
着脱検出片１２に対応してスイッチＳＷＩが設けられて
いる。上記小型音響機器１は第２図に示すように再生ヘ
ッド２１で検出した信号が前置アンフ゛２２で増幅され
てバッファアンプ２３に加えられ、このバッファアンプ
２３を構成するトランジスタのコネクタ倶ｊに取り出し
たイ占号が結合コンデンサＣ１およびポリウム２４を介
してパワーアンプ２６で増幅されてヘッドホンジャック
４に取り出されるようになっている。そして、上記スイ
ッチＳＷｉの一万の固定端子ｄに接続した電源電池２６
によって動作電圧が与えら扛るようになっている。上記
小型音響機＠１に設けたコネクタのうち、コネクタ１３
−１は結合コンデンサＣ２を介して上記バッファアンプ
２３を構成するトランジスタのエミッタに、上記コネク
タ１３−２ｒｉ−ヒ記スイッ≠ＳＷ１の他方の固定端子
すに、上記コネクタ１３−３は上記電源電池２６のアー
ス側（小型音響機器１の全体アース回路）に、Ｆ記コネ
クタ１３−４１６上記バンフアアンフ゛２３のアース側
にそれぞれ接続されている。尚、ＳＷ２はフ”レイスイ
ッチ、２７はモーター’ｌる。上記機器本体６は増幅Ｗ
Ｐｒ３１．ボリウム３２．ノくワーアンブ３３を備えて
おシ、上記パワーアンプ”３３で増幅された信号はヘッ
ドホンスピーカ６（ア）に取り出されるようになってい
る。そして、上記増幅器３１．パワーアンプ”３３のそ
れぞれに電源３６か−ら動作電圧が与えられるようにな
っている。Connectors 13-1.11-4 respectively correspond to connectors 13-1.
13-2, 13-3, 13-4 are provided, and a switch SWI is provided corresponding to the attachment/detachment detection piece 12. As shown in FIG. 2, in the small audio equipment 1, a signal detected by a playback head 21 is amplified by a preamplifier 22, applied to a buffer amplifier 23, and taken out to a connector j of a transistor constituting this buffer amplifier 23. The tai horoscope is amplified by a power amplifier 26 via a coupling capacitor C1 and a polyurethane 24, and then outputted to a headphone jack 4. The power supply battery 26 is connected to the fixed terminal d of the switch SWi.
The operating voltage is given by Connector 13 among the connectors installed in the above small acoustic machine @1
-1 is connected to the emitter of the transistor constituting the buffer amplifier 23 through a coupling capacitor C2, and the connector 13-3 is connected to the other fixed terminal of the switch ≠ SW1. The connector F connector 13-416 is connected to the ground side of the amplifier 23 (the entire ground circuit of the small audio equipment 1). In addition, SW2 is a fly switch, and 27 is a motor.The device main body 6 is an amplification switch.
Pr31. Volume 32. A power amplifier 33 is provided, and the signal amplified by the power amplifier 33 is output to the headphone speaker 6 (A).The amplifier 31 and the power amplifier 33 are each powered by a power source. The operating voltage is supplied from 36.
上記機器本体６に設けたコネクタのうち、上記コネクタ
１１−１は上記増幅器３１の入力端に、上記コネクタ１
１−２は抵抗Ｒ１を通して上記電源３６のホット側に、
上記コネクタ１１−３は上記電源３６のアース側に、上
記コネクタ１１−４は、■−記増幅器３１のアースにそ
れぞれ接続さｔている。Ｆ記機器本体６は上記小型音響
機器１からの電気信号をスピーカ受聴のために増幅する
増幅系のうち、上記増幅器３１のアースのみが他の回路
および電源３６のアースと分離されておシ、合体時に上
記小型音響機器１のアース回路で共用化さ扛る。Among the connectors provided on the device main body 6, the connector 11-1 is connected to the input end of the amplifier 31.
1-2 is connected to the hot side of the power supply 36 through the resistor R1,
The connector 11-3 is connected to the ground side of the power source 36, and the connector 11-4 is connected to the ground of the amplifier 31 (2). In the equipment body 6 described in F, among the amplification systems that amplify the electric signal from the small audio equipment 1 for listening to the speaker, only the ground of the amplifier 31 is separated from the ground of other circuits and the power supply 36, When combined, the ground circuit of the small audio equipment 1 is shared.
このような構成の着脱式音響装置において、いま、第１
図に示すように上記機器本体６に対して上記小型音響機
器１を分離した時、上記コネクタ ・１１−１〜１１
−４と１３−１〜１３−４による結合が解除され、上記
機器本体５に設けた着脱検出片１２により上記小型音響
機器１に設は泥スイッチＳＷ１を操作できない。そのた
め、１記スイツチＳＷ１は一方の固定端子ａ側にあって
上記小型音響機器１は第２図に示すようにそれ自体に設
けた電源電池２６にて動作電圧が与えられて作動する。In the removable audio device with such a configuration, the first
As shown in the figure, when the small audio equipment 1 is separated from the equipment main body 6, the connectors 11-1 to 11
-4 and 13-1 to 13-4 are released, and the attachment/detachment detection piece 12 provided on the device main body 5 makes it impossible to operate the switch SW1 installed in the small audio device 1. Therefore, the first switch SW1 is located on the side of one of the fixed terminals a, and the small-sized audio device 1 is operated by being supplied with an operating voltage from a power source battery 26 provided within itself, as shown in FIG.
そして、上記機器本体６は第２図に示すようにそれ自体
に設けた電源３６にて動作電圧が与えら扛て作動する。As shown in FIG. 2, the device main body 6 is operated by being supplied with an operating voltage from a power source 36 provided within itself.
このように分離時は上記機器本体６および上記小型台−
機器１のそれぞれがそれ自体の電源で独自に動作する、
一方、Ｌ記機器本体５の四部１ｏに上記小型音響機器１
を嵌入して合体したとき、上記コネクタ１１−１〜１１
−４と上記コネクタ１３−１〜１３−４がそれぞれ結合
され、上記機器本体６に設けた着脱検出片１２によって
上記小型音響機器１に設けたスイッチＳＷ１ を操作す
るので、上記スイッチＳＷ１は他方の固定端子す側に切
換えられて電池２６を上記小型音響機器１から１７１シ
離すことになる。そのため、上記小型音響機器１は上記
コネクタ１３−２．１１−２および抵抗Ｒ％を介して上
記機器本体６の電源３６に接続され、この電源３６によ
って動作電圧が与えられて作動する。そして、上記機器
本体５はそれ自体の電池３５で動作電圧が与えられて動
作する。この時、上記小型音響機器１から上記機器本体
６に上記コネクタ１３−１．１３−２を介して電気信号
が供給されるが、上記機器本体６のアース回路は電源３
５と増幅器３１で分離され、上記電源３５のアースは上
記コネクタ１３−３．１１−３を介して上記小型音響機
器１のアース回路に接続し、上記増幅器３１のアースは
上記コネクタ１３−４．１１−４を介して上記小型音響
機器１のアース回路に接続されているため、モータノイ
ズ、ムＣハム、電源のオン−オフ時の異常音等のノイズ
成分で出力信号が影響され゛ることを抑えることができ
る。In this way, when separated, the above-mentioned device main body 6 and the above-mentioned small stand -
Each of the devices 1 operates independently with its own power supply,
On the other hand, the above-mentioned small audio equipment 1 is attached to the fourth part 1o of the L equipment main body 5.
When the connectors 11-1 to 11 are inserted and combined, the connectors 11-1 to 11
-4 and the connectors 13-1 to 13-4 are respectively coupled, and the switch SW1 provided on the small audio equipment 1 is operated by the attachment/detachment detection piece 12 provided on the equipment main body 6, so that the switch SW1 is connected to the other connector. By switching to the fixed terminal side, the battery 26 is separated from the small audio device 1 by 171 cm. Therefore, the small audio device 1 is connected to the power source 36 of the device main body 6 via the connector 13-2, 11-2 and the resistor R%, and is operated by being supplied with an operating voltage by the power source 36. The device main body 5 is supplied with an operating voltage by its own battery 35 and operates. At this time, an electrical signal is supplied from the small audio device 1 to the device main body 6 via the connector 13-1, 13-2, but the ground circuit of the device main body 6 is connected to the power source 3.
5 and an amplifier 31, the ground of the power supply 35 is connected to the ground circuit of the small audio equipment 1 via the connector 13-3. Since it is connected to the ground circuit of the small audio equipment 1 through the cable 11-4, the output signal is not affected by noise components such as motor noise, hum, and abnormal sounds when turning the power on and off. can be suppressed.
尚、上記の実施例では増幅器３１のアースのみを電源３
６のアースと分離したが、こ扛は増幅系のすべてのアー
スを電源３６から分離してもよい。In the above embodiment, only the ground of the amplifier 31 is connected to the power supply 3.
However, all the grounds of the amplification system may be separated from the power supply 36.
以上のように本発明によれば、ヘッドホン受聴専用の小
型音響機器が着脱される機器本体の増幅器のアースを上
記機器本体の電源のアースと分離し、上記小型音響機器
と上記機器本体の合体時に上記機器本体の増幅器アース
を上記小型音響機器のアース回路で共用するようにした
ので、合体時にノイズ成分の出力信号への影響を小さく
抑えることができる利点を有するものである。As described above, according to the present invention, the ground of the amplifier of the device main body to which a small audio device dedicated for headphone listening is attached/detached is separated from the ground of the power supply of the device main body, and when the small audio device and the device main body are combined, Since the amplifier ground of the device main body is shared by the ground circuit of the small audio device, there is an advantage that the influence of noise components on the output signal can be suppressed when combined.
第１図は本発明の着脱式音響装置の一実施例を示す分離
状態での構成斜視図、第２図は同装置の要部の回路結線
図でろる。
１・・・°°°小型音響機器、５・・・・・・機器本体
、１ｏ・・・・・・凹部、１１−１〜１１−４．１３−
１〜１３−４・・・・・・コネクタ、１２・・・・・・
着脱検出片、ＳＷｌ・・・・・・スイッチ、３１ ．３
３・・・・・・増幅器。FIG. 1 is a perspective view showing an embodiment of the removable audio device of the present invention in a separated state, and FIG. 2 is a circuit diagram of the main parts of the device. 1...°°° Small audio equipment, 5... Equipment body, 1o... Recessed portion, 11-1 to 11-4.13-
1 to 13-4... Connector, 12...
Attachment/detachment detection piece, SWl...Switch, 31. 3
3...Amplifier.
Claims (1)
器が着脱自在であって上記小型音響機器からの電気信号
をスピーカ受聴するための機器本体と、上記小型音響機
器の上記機器本体への着脱状況を検出する着脱検出機構
と、この着脱検出機構に応動するスイッチ回路を備えて
なり、上記小型音響機器と上記機器本体の合体時に上記
スイッチ回路で上記小型音響機器の電池を切り離すも上
記小型音響機器に上記機器本体の電源から動作電圧を供
給するようになし、かつ上記機器本体の電源アースから
分離した上記機器本体の増幅器のアースを上記小型音響
機器のアースに接続するように構成してなる着脱式音響
装置。A small audio device exclusively for listening to headphones, a device main body to which the small audio device is detachable and for listening to electrical signals from the small audio device through a speaker, and a state of attachment and detachment of the small audio device to the device main body. It is equipped with an attachment/detachment detection mechanism to detect the attachment/detachment, and a switch circuit responsive to the attachment/detachment detection mechanism, and when the small-sized audio device and the main body of the device are combined, the switch circuit disconnects the battery of the small-sized audio device. A removable type configured to supply operating voltage from the power source of the device main body, and to connect the ground of the amplifier of the device main body, which is separated from the power supply ground of the device main body, to the ground of the small audio device. sound equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56176096A JPS5877397A (en) | 1981-11-02 | 1981-11-02 | Detachable sound device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56176096A JPS5877397A (en) | 1981-11-02 | 1981-11-02 | Detachable sound device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5877397A true JPS5877397A (en) | 1983-05-10 |
| JPS6326477B2 JPS6326477B2 (en) | 1988-05-30 |
Family
ID=16007621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56176096A Granted JPS5877397A (en) | 1981-11-02 | 1981-11-02 | Detachable sound device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5877397A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50149304A (en) * | 1974-05-18 | 1975-11-29 | ||
| JPS5136912A (en) * | 1975-07-31 | 1976-03-29 | Olympus Optical Co | RAJIOBUTOTEEPUREKOODABUTOOJUSURU ONKYOKIKI |
-
1981
- 1981-11-02 JP JP56176096A patent/JPS5877397A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50149304A (en) * | 1974-05-18 | 1975-11-29 | ||
| JPS5136912A (en) * | 1975-07-31 | 1976-03-29 | Olympus Optical Co | RAJIOBUTOTEEPUREKOODABUTOOJUSURU ONKYOKIKI |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6326477B2 (en) | 1988-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR0129758B1 (en) | Recording and playback switching device of tape recorder | |
| JPS5877397A (en) | Detachable sound device | |
| JPS5877396A (en) | Detachable sound device | |
| JP3154148B2 (en) | Microphone device | |
| GB2387979A (en) | A connector interface for a mobile phone | |
| JPS599450Y2 (en) | Amplifier | |
| JP3365558B2 (en) | Recording and playback device | |
| JPS6047521A (en) | Acoustic device | |
| JPS6020171Y2 (en) | Microphone input switching circuit for stereo tape recorder | |
| JPS6333438Y2 (en) | ||
| JPH0323725Y2 (en) | ||
| JP2521653Y2 (en) | Headphone switching circuit for multi-amplifier audio equipment | |
| JP2601211B2 (en) | Plug device with cord for speaker connection | |
| JPH0734532Y2 (en) | Audio equipment | |
| JPS6240881B2 (en) | ||
| JPH03123199A (en) | Power supply control device for acoustic device | |
| JPH03171895A (en) | Sound signal input device | |
| JP2619010B2 (en) | Loudspeaker | |
| JPS5928502Y2 (en) | tape recorder | |
| KR200233581Y1 (en) | Portable multi-channel amplifier | |
| JPS6072094U (en) | Audio equipment output circuit | |
| JPH0244163B2 (en) | ||
| JPH0713112Y2 (en) | External power supply type electronic device | |
| JPS6115671Y2 (en) | ||
| JPS6222483B2 (en) |