JPS58164330A - Acoustic device - Google Patents
Acoustic deviceInfo
- Publication number
- JPS58164330A JPS58164330A JP4756982A JP4756982A JPS58164330A JP S58164330 A JPS58164330 A JP S58164330A JP 4756982 A JP4756982 A JP 4756982A JP 4756982 A JP4756982 A JP 4756982A JP S58164330 A JPS58164330 A JP S58164330A
- Authority
- JP
- Japan
- Prior art keywords
- plug
- jack
- power
- audio
- power source
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/20—Circuits for coupling gramophone pick-up, recorder output, or microphone to receiver
Abstract
Description
【発明の詳細な説明】
本発明は極めて小型な音響装置を提供しようとするもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention seeks to provide an extremely compact acoustic device.
以下本発明の一実施例について図面を参照して説明する
。An embodiment of the present invention will be described below with reference to the drawings.
２・
第１図に示すように筐体１内にムＭ／ＦＭチューナおよ
び検波回路２およびこの回路２の音声出力を増幅するプ
リアンプ３を収納する。電力増幅回路、電源回路を設け
ないので、極めて薄い小型のものを作ることができる。2. As shown in FIG. 1, a M/FM tuner and detection circuit 2 and a preamplifier 3 for amplifying the audio output of this circuit 2 are housed in a housing 1. Since no power amplification circuit or power supply circuit is provided, an extremely thin and compact device can be manufactured.
この筐体１に上記回路２およびプリアンプ３に電源電圧
を供給するだめの電源ジャック４および上記プリアンプ
３の音声出力を外部へ取出すための音声ジャック５とを
設ける。回路２の代りにテープレコーダの再生部を設け
てもよい。This housing 1 is provided with a power jack 4 for supplying power supply voltage to the circuit 2 and the preamplifier 3, and an audio jack 5 for taking out the audio output of the preamplifier 3 to the outside. A reproducing section of a tape recorder may be provided in place of the circuit 2.
電源ジャック４に接続される電源プラグ６と音声ジャッ
ク６に接続される信号プラグ７とを有するプラグ８を設
ける。このプラグ８の電源プラグ６にはバッテリーパッ
ク９から直流電圧を供給し、信号プラグ７で得た信号は
バッテリーパック９を終でヘッドホーンクリスタルイヤ
ホン等の電気音響変換器１０に供給される。A plug 8 having a power plug 6 connected to the power jack 4 and a signal plug 7 connected to the audio jack 6 is provided. A DC voltage is supplied from a battery pack 9 to the power plug 6 of this plug 8, and the signal obtained from the signal plug 7 is supplied via the battery pack 9 to an electroacoustic transducer 10 such as a headphone crystal earphone.
筺体１は胸のポケットに収納し、バッテリーパック９は
腰のベルトに取付け、電気音響変換器１゜は耳に取付け
て用いる。このように構成することにより極めて小型の
音響装置が得られる。The housing 1 is stored in the chest pocket, the battery pack 9 is attached to the waist belt, and the electroacoustic transducer 1° is attached to the ear. With this configuration, an extremely compact acoustic device can be obtained.
第２図に示すようにプラグ８の中に電池（単４電池を２
個程度）１１収納すればバラ−テリーパック９を設ける
必要がなくなる、１２は信号取出し用のジャック、１３
は外部電源接続用のジャックである。このジャック１３
と電池１１とはスイッチ１４で切換えられるようになっ
ており、ジャック１３に電源ソース１５のプラグを挿入
すると電池１１が切れてジャック１３とプラグ６が接続
されるよう構成されている。電源ソース１６は商用電源
からの交流電圧を整流平滑し、適切な電圧にドロップさ
せたものを出力するものである。この電源ソース１６に
はＬ電力増幅器１６とＲ電力増幅器１７が設けられてお
り、ジャック１２から取出した音声信号を増幅してスピ
ーカから放音するものである。As shown in Figure 2, insert batteries (2 AAA batteries) into the plug 8.
If 11 is stored, there is no need to provide a battery pack 9. 12 is a jack for signal extraction, 13
is a jack for connecting an external power supply. This jack 13
and the battery 11 can be switched by a switch 14, and when the plug of the power source 15 is inserted into the jack 13, the battery 11 is depleted and the jack 13 and the plug 6 are connected. The power source 16 rectifies and smoothes an alternating current voltage from a commercial power source, drops it to an appropriate voltage, and outputs the resulting voltage. This power source 16 is provided with an L power amplifier 16 and an R power amplifier 17, which amplify the audio signal taken out from the jack 12 and emit the sound from the speaker.
以上のように本発明によれば筐体内には音声信号を増幅
するプリアンプを設ければよく、電力増幅器、電源回路
は不用であるので、きわめて小型ャック、６・・・・・
・信号ジャック、６・・・・・・電源プラグ、７・・・
・・・信号プラグ、８・・・・・・プラグ、９・・・・
・・バッテリーパック、１ｏ・・・・・・電気音響変換
器、１１・・・・・・電池。As described above, according to the present invention, it is only necessary to provide a preamplifier for amplifying the audio signal inside the housing, and a power amplifier and power supply circuit are not required.
・Signal jack, 6...Power plug, 7...
...Signal plug, 8...Plug, 9...
...Battery pack, 1o...Electroacoustic transducer, 11...Battery.
Claims (1)
この筐体に、上記プリアンプに電源電圧を供給するため
の電源ジャックと、上記プリアンプの音声出力を外部に
出すための音声ジャックとを設け、上記電源ジャックに
接続される電源プラグと上記音声ジャックに接続される
信号プラグとを有するプラグを設け、このプラグに電池
を内蔵するか外部電源より電力を供給するよう構成する
とともに信号プラグに入った音声信号を外部に導いて電
気音響変換器に供給することを特徴とする音響装置。The preamplifier that amplifies the input audio signal is housed in the housing (
This housing is provided with a power jack for supplying power voltage to the preamplifier and an audio jack for outputting the audio output of the preamplifier to the outside, and a power plug connected to the power jack and the audio jack are provided. A plug having a signal plug to be connected is provided, and the plug has a built-in battery or is configured to be supplied with power from an external power source, and the audio signal entering the signal plug is guided to the outside and supplied to the electroacoustic transducer. A sound device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4756982A JPS58164330A (en) | 1982-03-24 | 1982-03-24 | Acoustic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4756982A JPS58164330A (en) | 1982-03-24 | 1982-03-24 | Acoustic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58164330A true JPS58164330A (en) | 1983-09-29 |
Family
ID=12778859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4756982A Pending JPS58164330A (en) | 1982-03-24 | 1982-03-24 | Acoustic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58164330A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017500761A (en) * | 2013-10-04 | 2017-01-05 | アクアテラ リミテッド | Power adapter device with integrated input / output interface and portable electronic device with storage recess for multifunctional power adapter |
-
1982
- 1982-03-24 JP JP4756982A patent/JPS58164330A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017500761A (en) * | 2013-10-04 | 2017-01-05 | アクアテラ リミテッド | Power adapter device with integrated input / output interface and portable electronic device with storage recess for multifunctional power adapter |
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