JPH01241208A - Terminal equipment - Google Patents

Terminal equipment

Info

Publication number
JPH01241208A
JPH01241208A JP6793188A JP6793188A JPH01241208A JP H01241208 A JPH01241208 A JP H01241208A JP 6793188 A JP6793188 A JP 6793188A JP 6793188 A JP6793188 A JP 6793188A JP H01241208 A JPH01241208 A JP H01241208A
Authority
JP
Japan
Prior art keywords
speaker
current
noise
microphone
volume
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
Application number
JP6793188A
Other languages
Japanese (ja)
Inventor
Nobuo Morishita
森下　信男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6793188A priority Critical patent/JPH01241208A/en
Publication of JPH01241208A publication Critical patent/JPH01241208A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To save a trouble of adjusting sound volume and to prevent too large sound output by collecting surrounding noise sequentially by a microphone, detecting every noise and adjusting the sound volume of a speaker depending on the volume of noise. CONSTITUTION:The manual or automatic sound adjustment is selected by a changeover switch 4. In case of the automatic sound volume adjustment, a microphone 6 picks up noise in case of the automatic sound adjustment and the AC signal from the microphone is rectified into a positive current by a rectifier circuit 7. The current is formed into a current nearly equal to a direct current. The current is used as a base current of a transistor(TR) 10, the current flowing to a speaker 1 is varied with a current from the microphone. If no noise is given to the microphone 6, the speaker 1 does not give any sound output. Then a battery 9 is provided to give the base current even in the absence of noise to energize the speaker 1. Thus, the sound volume of the speaker 1 is varied in response to the surround noise.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、端末装置のスピーカーの音量調節に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to volume adjustment of a speaker of a terminal device.

〔従来の技術〕[Conventional technology]

第３図は、従来の端末装置でのスピーカー関連の回路図
である。図において、（１）はスピーカーであり、（２
）は音量を調節するための可変抵抗であり（３）はスピ
ーカーを制御するためのトランンスタである。。FIG. 3 is a circuit diagram related to a speaker in a conventional terminal device. In the figure, (1) is a speaker and (2
) is a variable resistor for adjusting the volume, and (3) is a transistor for controlling the speaker. .

次に動作について説明する。スピーカー（１）の音は、
スピーカー制御イ８号がきたときに鳴る、スピーカー制
御信号がＨ″となると、トラノノスタ（３）のベース’
ＭＫが流れ、それによって、コレクタ電流が流れて、ス
ピーカーが鳴る。ここで、コレクタ電流の大きさが即ス
ピーカーの大きさとなる。Next, the operation will be explained. The sound of speaker (1) is
When the speaker control signal that sounds when No. 8 comes, becomes H'', the bass of Toranosta (3)
MK flows, which causes collector current to flow and the speaker to sound. Here, the magnitude of the collector current immediately becomes the magnitude of the speaker.

そこで、コレクタ電流を制御するため、コレクタ側に可
変抵抗（２）を挿入している。この可変抵抗によって、
コレクタ電流が制御でき、スピーカーの音が調節できる
。この可変抵抗は、手動によって調節する、即ち、スピ
ーカーの音量は手動によって調節されろ。Therefore, in order to control the collector current, a variable resistor (2) is inserted on the collector side. With this variable resistance,
The collector current can be controlled and the speaker sound can be adjusted. This variable resistance is manually adjusted, ie, the volume of the speaker is adjusted manually.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

従来の端末装置のスピーカ一部は、以上のように構成さ
れているので、音量は、手動で調節しなければならず、
また、周囲の音の強弱において、無関係であるので、自
分で音量調節をするオ）ずらわしさがあるなどの問題点
があった。Some of the speakers of conventional terminal devices are configured as described above, so the volume must be adjusted manually.
In addition, since the intensity of surrounding sounds is irrelevant, there are problems such as the difficulty of adjusting the volume by oneself.

この発明は上記のような問題点を解消するためになされ
たもので、周囲の音の強弱によって自動的に音量が調節
できろとともに、従来通りの手動の音量調節もできろ端
末装置を得ることを目的とする。This invention was made in order to solve the above-mentioned problems, and provides a terminal device that can automatically adjust the volume depending on the intensity of surrounding sounds, and also allows manual volume adjustment as in the past. With the goal.

〔課題を解決するための手段〕[Means to solve the problem]

この発明に係る端末装置は、周囲の雑音を逐一マイクに
よって集め、その音を逐一検知し、その＆ｔに応じてス
ピーカーの音量をかえようと（ツなものである。The terminal device according to the present invention collects surrounding noises one by one using a microphone, detects the sounds one by one, and changes the volume of the speaker according to the &t.

〔作　用〕[For production]

この発明におけろ端末装置は、マイクによって茅ＩＴＥ
音を集音した後、スピーカーの音量を調節しスピーカー
を鳴らず。In this invention, the terminal device uses a microphone to
After collecting the sound, adjust the speaker volume so that the speaker does not play.

〔実施例〕〔Example〕

以下、この発明の一実施例を図について説明する。第１
図において、（４）は音量の変化を手動にするか、自動
にするかを切り換丸ろスイ・？チである。An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, (4) indicates whether the volume change is manual or automatic. It is Chi.

（５）は（４）のスイッチに連動する切り１灸えスイッ
チである。（（５）は周囲の雑音を集めろ集音マイクで
ある。(5) is an off-one moxibustion switch that is linked to the switch (4). ((5) is a microphone that collects surrounding noise.

（７）はマイクからの交流信号を直流信号にかえろ整流
回路である。（８）は整流された電流をより直流に近い
ものにするｔこめのコノデンサである。、　（９１は周
囲の雑音がない場合でも、スピーカーに電流をｉＡＥす
ための電池である。００）（よ集音マイクからの信号に
よってスピーカーに流す電流をか丸る役目をするトラン
ジスタである。(7) is a rectifier circuit that converts the AC signal from the microphone into a DC signal. (8) is a t-shaped conode that makes the rectified current more similar to direct current. , (91 is a battery that supplies current to the speaker even when there is no ambient noise. 00) (Yo) This is a transistor that serves to round the current that flows to the speaker depending on the signal from the sound collection microphone.

次に動作について説明する。上ず、切り換えスイッチ（
４）によって手動音量調節か、自動音量調節かを選択す
る。ｆ−動廿量調節の場合は、従来通りである。自動音
量調節に選択された場合の動作について説明ずろ。まず
、マイク（５）によって周囲の雑音をひろう。これは、
マテクによって第２図の１）の交流信号となる１、この
交流信号を整流回路（７）によって、第２図の２）のよ
うな正の電流とする１゜次いで、その電流は、コンデシ
サ（８）によ、第２図３）のような、直流とほぼ同じ電
流となる。この電流を、トランジスタ００）のベース電
流とすることにより、スピーカー（１）に流れる電流が
・−マイクからの電流によって変化することになる。し
かしこのま圭ではマイクに雑音がいらないとき、スピー
カーがまったくならないことになる。そこで、電池（９
）をいれろことにより、第２図の４）のように雑音がな
いときでも、ベース電流を流すようにし、スピーカーを
鳴らずようにする。これにより、周囲の雑音に応じて、
スピーカーの音量が変化する。Next, the operation will be explained. First, select the switch (
4) Select manual volume adjustment or automatic volume adjustment. The f-dynamic adjustment is the same as before. Please explain what happens when automatic volume adjustment is selected. First, use the microphone (5) to pick up ambient noise. this is,
The alternating current signal (1) in Figure 2 is converted into a positive current by the rectifier circuit (7) as shown in (2) in Figure 2. 8), the current becomes almost the same as direct current, as shown in Figure 2 and 3). By using this current as the base current of the transistor 00), the current flowing through the speaker (1) changes depending on the current from the microphone. However, with Konoma Kei, when the microphone doesn't need noise, the speaker doesn't work at all. Therefore, the battery (9
), even when there is no noise as shown in 4) in Figure 2, the base current flows and the speaker does not ring. This allows, depending on the surrounding noise,
The speaker volume changes.

なお、」−記実施例では、切り換えスイッチにより、自
動と手動に切り換左ろことができるようにしたが、切り
換えスイッチ（４）をなくし自動のみにしても、装置が
簡略化できろということもあり又る。In addition, in the embodiment mentioned above, it was possible to switch between automatic and manual mode using a changeover switch, but it is also possible to simplify the device even if the changeover switch (4) is eliminated and only automatic operation is performed. There are many.

また、上記実施例では、整流回路（７）を用いて交流を
直流にしたが、熱電対を利用してもよく、上記実施例と
同様の効果を秦する。。Further, in the above embodiment, the rectifier circuit (7) is used to convert alternating current to direct current, but a thermocouple may also be used, and the same effect as in the above embodiment can be obtained. .

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によれば、スピーカーの音量を
自動的に変化するように構成したので、’ｆＴｆｌを調
節する手間が省け、大きい音の出しすぎということもな
いという効果がある。As described above, according to the present invention, since the volume of the speaker is configured to change automatically, the effort of adjusting 'fTfl can be saved, and there is no possibility that the sound will be too loud.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの発明の一実施例による端末装置のスピーカ
ー関連の回路図である。第２図は、マイクからの電流の
変造図である。第３図は、従来の端末装置のスピーカー
関連の回路図である。 代理人　　大　　岩　　増　　雄 第２図FIG. 1 is a speaker-related circuit diagram of a terminal device according to an embodiment of the present invention. FIG. 2 is a modified diagram of the current from the microphone. FIG. 3 is a circuit diagram related to a speaker of a conventional terminal device. Agent Masuo Oiwa Figure 2

Claims (1)

【特許請求の範囲】[Claims] スピーカーとそのスピーカーを駆動する回路を備えた端
末装置において、周囲の雑音を集音する手段と集音され
た雑音の音量を検知しスピーカーの音量の強弱を制御す
る信号を生成する手段とその制御信号によりスピーカー
駆動回路からスピーカーに流れる電流を変化させる手段
を備え、周囲の雑音に応じて、スピーカーの音量が変化
するようにしたことを特徴とする端末装置。In a terminal device equipped with a speaker and a circuit for driving the speaker, a means for collecting ambient noise, a means for detecting the volume of the collected noise, and a means for generating a signal to control the intensity of the speaker's volume, and the control thereof A terminal device comprising means for changing the current flowing from a speaker drive circuit to the speaker according to a signal, and the volume of the speaker changes in accordance with surrounding noise.
JP6793188A 1988-03-22 1988-03-22 Terminal equipment Pending JPH01241208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6793188A JPH01241208A (en) 1988-03-22 1988-03-22 Terminal equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6793188A JPH01241208A (en) 1988-03-22 1988-03-22 Terminal equipment

Publications (1)

Publication Number Publication Date
JPH01241208A true JPH01241208A (en) 1989-09-26

Family

ID=13359160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6793188A Pending JPH01241208A (en) 1988-03-22 1988-03-22 Terminal equipment

Country Status (1)

Country Link
JP (1) JPH01241208A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010015426A (en) * 2008-07-04 2010-01-21 Toshiba Tec Corp Merchandise sales data processor
US8345885B2 (en) 2009-01-16 2013-01-01 Oki Electric Industry Co., Ltd. Sound signal adjustment apparatus and method, and telephone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010015426A (en) * 2008-07-04 2010-01-21 Toshiba Tec Corp Merchandise sales data processor
US8345885B2 (en) 2009-01-16 2013-01-01 Oki Electric Industry Co., Ltd. Sound signal adjustment apparatus and method, and telephone

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