JPS6226965A - Talking equipment - Google Patents
Talking equipmentInfo
- Publication number
- JPS6226965A JPS6226965A JP16645985A JP16645985A JPS6226965A JP S6226965 A JPS6226965 A JP S6226965A JP 16645985 A JP16645985 A JP 16645985A JP 16645985 A JP16645985 A JP 16645985A JP S6226965 A JPS6226965 A JP S6226965A
- Authority
- JP
- Japan
- Prior art keywords
- receiver
- transmitter
- transmitting
- level
- circuit
- 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
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Abstract
Description
【発明の詳細な説明】
が聞こえてくるのを防止するようにした通話装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a communication device that prevents the user from hearing.
子機を子供部屋に、親機を調理室にそれぞれ設置（２て
、子供部屋の様子を家事なしながら監視する通話装置が
知られており、監視状態において、子供の鳴声等が、充
分に親機に伝わるようにする必要がある。一方、実開昭
５２−２０１０５号公報に示すように、一般の通話装置
にあっては、非線形回路を挿入し、送話器に対する音声
入力が小さい場合にはアンプの利得を下げるようにして
いる。したがって、監視時に低レベルの音声が入力する
場合には、受話器からは殆んど音声が聞きとれない。Install the child unit in the child's room and the parent unit in the kitchen (2) There is a known communication device that monitors the child's room while doing housework, and in the monitoring state, the child's voice, etc. On the other hand, as shown in Japanese Utility Model Application Publication No. 52-20105, a non-linear circuit is inserted in a general communication device so that the voice input to the transmitter is small. Therefore, when low-level audio is input during monitoring, the audio can hardly be heard from the receiver.
監視状態ＶＣおいて、子供の声が小さくても、充分聞き
とれるようにした場合、風切音や物が触れあう音等の高
域成分な含んだ周囲の雑音が一緒に聞えてくるので、う
るさいという問題があった。In the monitoring state VC, if you make the child's voice audible enough even if it is small, you will hear surrounding noise including high-frequency components such as wind noise and the sound of objects touching, making it noisy. There was a problem.
本発明は十ｄ１シ事（＃Ｋｌ鑑みてなきね−だもので、
監視状伸ｅでおいて、周囲雑音に煩わされずに監視でき
る通話装置な提供−ｆ”ること２目的と−４−る。This invention is a tenth thing (in view of #Kl),
The two purposes of the surveillance system are to provide a communication device that can be monitored without being bothered by ambient noise.
本発明は第１の送受話装置ｆ 、’：第２の送受話装置
とを接続１−１第１の受話装置の送話器と第２の送受話
」１１受話器との間に、上記送話器Ｖこ対する音声入力
が一定レベル未満のときに高域成分が減少１−１上記レ
ベル以−ヒのとき全域通過可能となるろ波器な介挿した
ことを特徴とＴるものである。The present invention connects the first transmitter/receiver f,': the second transmitter/receiver 1-1 the transmitter of the first receiver and the second transmitter/receiver; When the voice input to the speaker V is below a certain level, the high-frequency components are reduced, and when the voice input is above the above level, the entire range can be passed.The feature is that a filter is inserted. .
（１）は第１の送受話装置、（２）は上ｇｂ送受ｉｔｌ
！ｉ装置ｉｌ＋に接続された第２の送受話装置である。(1) is the first transmitting/receiving device, (2) is the upper GB transmitting/receiving itl
! This is a second transmitting/receiving device connected to the i-device il+.
（８）はろ波器で、第１の送受話装置の送話器（４）と
、第２の送受話装置ｔ ｔ２＋の受話器（５）との間に
介挿され、上ｍｌ送話器（４）に対する盲−声人が一定
レベル未満のときに高域成分が減少１〜、上記レベル以
上のときしく、全域通過可能となるものである。(8) is a filter, which is inserted between the transmitter (4) of the first transmitter/receiver and the receiver (5) of the second transmitter/receiver tt2+, 4) Blindness - When the voice level is below a certain level, the high frequency component decreases from 1 to 1, and when it is above the above level, the entire range can be passed.
第２図により、さらに詳細に説明イーると、第１の送受
話装置＋１１は、子機でル）っ−Ｃ１送話器（４）、こ
の送話器（４）に接続されたアンプ（５）および受話１
：＋（６）夕、＋４１−．、被モニター側である。また
、第２の送話装置（２）は親機であって、この送受話装
置（２）は、プリアンプ（７ａ） 、スピーカアンプ（
７ｂ）を介挿して受話器（５）を上記第１の送受話装置
の送話器（４）に接続しているとともに、上記各アンプ
（６）、（７）の間に上記ろ波′＃ｒｔ８）を介挿して
いる。このろ波器（３）は、伝送ラインに旧刊に介挿し
た抵抗（８）およびこの抵抗の一端と大地間に接続した
コンデンサ（９）を有シ２、コンデンサ（９）に直夕１
ｊに設けたトランジスタ０（薯およびこのトランジスタ
０１のベースに接続さｔた制（財）用の他のトランジス
タ（ＩＩＩＹ設け′Ｃいる。また、Ｃ３は受話器（５）
の出力検出回路であり、伝送ラインと大地間に接続され
、コンデンサＣ１３，ダイオードＱ４およびこの夕“イ
オードと逆り向の他のダイオード（＋５）に並列［７／
ζコンアンサ（１６）を壱し、このコンデンサとダイオ
ード０（ト）との接続点ゲトラン７スタ（＋１）のベー
スに＋９ 続Ｌ−でいる。なお、ダイオード（１ψ、（
１５）およびコンデンサα３、（１→は受話器（５）の
検出信号を整流１（７て取り出”１゛整流回路で）〕る
。ぞ１．で、この第２の送受話装置（２）はモニター側
である。To explain in more detail with reference to FIG. 2, the first transmitting/receiving device +11 includes a handset, a C1 transmitter (4), and an amplifier connected to this transmitter (4). 5) and reception 1
:+(6) Evening, +41-. , is the monitored side. Further, the second transmitting device (2) is a base unit, and this transmitting and receiving device (2) includes a preamplifier (7a), a speaker amplifier (
7b) to connect the receiver (5) to the transmitter (4) of the first transmitting/receiving device, and the filter'## is inserted between each of the amplifiers (6) and (7). rt8) is inserted. This filter (3) has a resistor (8) inserted into the transmission line and a capacitor (9) connected between one end of this resistor and the ground.
There is a transistor 0 connected to the base of the transistor 0 and another transistor connected to the base of the transistor 01.
This output detection circuit is connected between the transmission line and the ground, and is connected in parallel with capacitor C13, diode Q4, and another diode (+5) in the opposite direction to this diode.
A ζ capacitor (16) is connected to the base of the gettran 7 star (+1) at the connection point between this capacitor and the diode 0 (g). In addition, the diode (1ψ, (
15) and a capacitor α3, (1 → takes out the detection signal of the handset (5) with a rectifier circuit). is on the monitor side.
つぎに、本発明の詳細な説明イる。非Ｓ話状態Ｖ（おい
ては、第１の送受話装置の送話器（４）ｖこ対する音用
入力は低レベルでル〕って、周囲の音が送話器（４）に
入力されるだけである。この状態で、第２の送受話装置
（２）の出力検出回路αのは、検出レベルが小さいので
、トランジスタａυはオフしている。このため、トラン
ジスタ時は抵抗（ｔηを介してバイアスされてオンする
。したがって、抵抗（８）、コンデンサ（９）からなる
高域ろ波回路（８）が作動ｊ７、このＩＥＪＪ路（８）
によって、高域成分が減少し、そｎ、以外の帯域成分が
スピーカアンプ（７）に入力する。非通話時の雑音の種
類に注目すると、主に周囲の風切音や、物の触れあう音
は、高域成分（ＩＫｋｉｚ以上）が多く、非常に耳障り
な音である。−万人間の音声の基本波成分は数百Ｈｚで
ある。したがって、通話な行ってなく、送話器（４）に
対して不音に時には、稠埋室等の監視側に設けた受話器
（５）からは、人間の音声はそのまま聞えるから、子供
部屋等の被監視側の様子な監視できる。周囲の庁″′４
−なゎち、高域成分はろ波器回路（８１＆ｃよって高域
成分が減衰するため、−１＋−〇な音が除去さ７１．る
。この場合、高域成分が減少−［ることで入間の音声を
こつぃて多少音菫が低“卜「るが、監視Ｖこは差し支え
ない。Next, a detailed explanation of the present invention will be given. In the non-speech state V (in which the sound input to the transmitter (4) of the first transmitting/receiving device is at a low level), ambient sounds are input to the transmitter (4). In this state, the detection level of the output detection circuit α of the second transmitter/receiver (2) is small, so the transistor aυ is off. Therefore, when it is a transistor, the resistor (tη Therefore, the high-pass filter circuit (8) consisting of a resistor (8) and a capacitor (9) is activated, and this IEJJ path (8)
As a result, high-frequency components are reduced, and band components other than that are input to the speaker amplifier (7). Looking at the types of noise when not talking, the main sounds are wind noise in the surroundings and the sound of objects touching each other, which have many high frequency components (IKkiz or higher) and are very harsh to the ears. -The fundamental wave component of human speech is several hundred Hz. Therefore, when no one is talking on the phone and there is no sound on the transmitter (4), the human voice can still be heard from the receiver (5) installed on the monitoring side of the burial room, etc. The status of the monitored side can be monitored. Surrounding offices'''4
- Since the high-frequency components are attenuated by the filter circuit (81&c), the -1+-〇 sound is removed.71. In this case, the high-frequency components are reduced - [by The sound may be a little low when you get the hang of the voice, but it's fine for monitoring.
一定レベル以上、すなわち、通常の通話時の音声入力が
送話器（４）に加え約４１、プリアンプ（６ン出力がダ
イオードＵ・ν、（１９を１膣バイアス−［るレベルに
達すると（約ｖｐ〜０．６Ｖ）、出力検出回路０３は作
動し、トランジスタａｐｒ−オンジ、コれνてよって、
トランジスタ時はすノになりコンデンサ（９）のトラン
ジスタａω側は開放状、轢［なり、ろ波回路（８）は伝
送ラインから除かル、この結果、全域通過状態となり、
明瞭な通話がｒテえる。Above a certain level, that is, when the voice input during normal calls reaches a level of about 41 in addition to the transmitter (4), the output of the preamplifier (6) is the diode U. (approximately vp ~ 0.6V), the output detection circuit 03 is activated, and the transistor apr-ON, this is ν, and therefore,
When it is a transistor, the transistor aω side of the capacitor (9) is open and crossed, and the filter circuit (8) is removed from the transmission line, resulting in an all-pass state.
You can make clear calls.
なお、第３図は音菫変化に対する通過帯域の変化を示す
特性図である。Incidentally, FIG. 3 is a characteristic diagram showing changes in the passband with respect to changes in the tone.
また、上記実施例ではモニター用であったが、必らすし
もモニター用でなくてもよく、たとえば呼出された相手
側が送話器に向って声を発す６迄、呼出ｌｌ１１１が受
話器の前で侍−）Ｃいイ）間、ｋとλ短時間でも雑音か
に４’、 ｐｒ入っ−ｒ゛こ々い方／バ、Ｊいことは当
然−（，拓り、また、西話時−ｅも人聞の音声が小きい
場合Ｖこ、雑音ｒじ十斗き／Ｌ々いので、開へとり？イ
ク、１．たがって、モニター用でない場骨でも、本発明
を虐用°「ることは自効でル）る。手だ、秘話式の場合
にも鳩用］２でよい。In addition, in the above embodiment, the monitor is used, but it does not have to be for the monitor. For example, the calling party 111 is in front of the receiver until 6 when the called party speaks into the receiver. Samurai-) C I) between k and λ even for a short time there is noise 4', PR enters-r゛ Kokoi-kata/Ba, J-of course-(, Opening, also during Western talk- If the human voice is too low, there will be a lot of noise, so open it up. It is self-effecting to do so.In the case of the secret method, 2 is sufficient.
さらに、親機１ｌｌｌＩを第１の送受貼装（ｄと１２、
子機側４′第２の！λ受詰装酋と〔２、前者の送話器と
後者の受話器との間に本発明におけるろ波器を介挿［７
てもよい。さらに、委すれば、ろ波器の介挿さｎだ糸し
τおいて、ろ波器かＣ）見で、いすね。Furthermore, attach the base unit 1llllI to the first transmitter/receiver sticker (d and 12,
Handset side 4' 2nd! The filter according to the present invention is inserted between the transmitter of the former and the receiver of the latter [7]
It's okay. Furthermore, if you leave it to me to insert a filter, I'll see if it's a filter or not.
か−力を第１の送受話装置と−Ｃれば他ノＪは第２の送
受話装置でル）るか１）、各通話系統毎の送話器および
受話器間そバーぞ／Ｌに本発明にｊ、Ｓけるろ波器を設
けてもよいことは勿論で、１ｉ、る。If the power is connected to the first transmitter/receiver, the other device is connected to the second transmitter/receiver. Of course, the present invention may be provided with filters 1i, 1i, and 1i.
本発明は以ト詳述１．たまうに、第１の送受話装置の送
話器と第２の送受話装置の受話器との間Ｖこ、上記送話
器に対する音声入力が一定レベル未満のときに高域成分
が減少し、上記レベル１ヅトのときに全域通過ｉ］゛能
となるろ波器を介挿ｌ、たイ）の１゛１シ、右か「）、
通話を行っていない状態では、周囲の雑音が低減きｎｌ
その一方低域成分は跪少しないので、人間の音声＠ｊ
Ｉｉキｊ ＜ことができ、たとえば、子供部屋の様子ケ
監視するのThe present invention will be described in detail below. In fact, when the voice input to the transmitter is below a certain level, the high frequency component decreases between the transmitter of the first transmitter and receiver and the receiver of the second transmitter and receiver. When the level is 1, a filter is inserted that allows the entire range to pass i].
When not on a call, ambient noise is reduced.
On the other hand, the low-frequency components are not very low-frequency, so the human voice @j
For example, you can monitor the child's room.
図は本発明の−・実施例な示［７、第１図は系統図、第
２図は回路図、第３図は本発明ンこおけるろ波器の特性
図である。
（１１・・・・・第１の送受話装置、
（２）・・・・・・第２の送受話装置、（８）・・・・
・ろ波器。The figures show embodiments of the present invention [7] Fig. 1 is a system diagram, Fig. 2 is a circuit diagram, and Fig. 3 is a characteristic diagram of a filter according to the present invention. (11...First transmitting/receiving device, (2)...Second transmitting/receiving device, (8)...
・Filter.
Claims (1)
、 上記第１の送受話装置の送話器と上記第２の送受話装置
の受話器との間に介挿され、上記送話器に対する音声入
力が一定レベル未満のときに高域成分が減少し、上記レ
ベル以上のときに全域通過可能となるろ波器と； を具備したことを特徴とする通話装置。[Scope of Claims] A first transmitting/receiving device; a second transmitting/receiving device connected to the first transmitting/receiving device; a transmitter of the first transmitting/receiving device; a filter that is inserted between a receiver of a receiver and a filter that reduces high-frequency components when the audio input to the transmitter is below a certain level, and allows the entire range to pass when the audio input is above the above-described level; A communication device characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16645985A JPS6226965A (en) | 1985-07-27 | 1985-07-27 | Talking equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16645985A JPS6226965A (en) | 1985-07-27 | 1985-07-27 | Talking equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6226965A true JPS6226965A (en) | 1987-02-04 |
Family
ID=15831792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16645985A Pending JPS6226965A (en) | 1985-07-27 | 1985-07-27 | Talking equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6226965A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0421403U (en) * | 1990-06-11 | 1992-02-24 | ||
| GB2391673A (en) * | 2002-08-06 | 2004-02-11 | Motorola Inc | Wireless Audio Voice Monitor using Variable Bandwidth |
-
1985
- 1985-07-27 JP JP16645985A patent/JPS6226965A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0421403U (en) * | 1990-06-11 | 1992-02-24 | ||
| GB2391673A (en) * | 2002-08-06 | 2004-02-11 | Motorola Inc | Wireless Audio Voice Monitor using Variable Bandwidth |
| GB2391673B (en) * | 2002-08-06 | 2005-01-19 | Motorola Inc | Wireless audio monitor |
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