JPS6393228A - Transceiver connected with plural microphones and speakers - Google Patents
Transceiver connected with plural microphones and speakersInfo
- Publication number
- JPS6393228A JPS6393228A JP24007386A JP24007386A JPS6393228A JP S6393228 A JPS6393228 A JP S6393228A JP 24007386 A JP24007386 A JP 24007386A JP 24007386 A JP24007386 A JP 24007386A JP S6393228 A JPS6393228 A JP S6393228A
- Authority
- JP
- Japan
- Prior art keywords
- receiving means
- transmitting
- transceiver
- slave
- transmitter
- 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.)
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- 230000005236 sound signal Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 19
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 10
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 1
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、複数の箇所で使用できるトランシーバ−に間
し、特に、使用箇所に優先順位が設定できるトランシー
バ−に間する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a transceiver that can be used at multiple locations, and particularly to a transceiver that can be prioritized for each location.
［従来の技術並びにその問題点］
第２図に示すように、トランシーバー本体５のマイク回
路１とスピーカー回路２に並列に、複数のマイク３とス
ピーカー４とを接続し、マイク３とスピーカー４を一対
として、これを複数箇所に設け、１台のトランシーバ−
を複数箇所で使用する装置は開発されている。こめ方式
は、１台のトランシーバ−を何箇所でも使用できるので
、システム全体を低コストにできて便利に使用できる特
長がある。[Prior art and its problems] As shown in FIG. 2, a plurality of microphones 3 and speakers 4 are connected in parallel to the microphone circuit 1 and speaker circuit 2 of the transceiver body 5, and These can be installed as a pair in multiple locations to create a single transceiver.
Devices have been developed that use the same at multiple locations. The integrated system has the advantage that one transceiver can be used in any number of locations, making the entire system cost-effective and convenient to use.
ところが、この装置は、並列に接続されたマイクから同
時に喋ると、複数の音声が一緒に送信される為、受信側
で混信したのと同様の状態となって、送信内容を判別で
きない。However, with this device, when multiple speakers speak simultaneously from microphones connected in parallel, multiple voices are transmitted together, resulting in a state similar to interference on the receiving side, making it impossible to discern what is being transmitted.
この欠点は、第３図に示すように、複数のマイク３を切
換回路６を介してトランシーバー本体５のマイク回路ｌ
に接続して解消できる。ところが、この回路は、切換回
路６を、マイク３とスピーカー４とが設けられた箇所で
制御する必要があり、切換回路自体と、切換回路６とマ
イク３との間の制御コード７の配線に著しく手間が掛か
る。This drawback is that, as shown in FIG.
It can be resolved by connecting to. However, in this circuit, it is necessary to control the switching circuit 6 at the location where the microphone 3 and the speaker 4 are installed, and the switching circuit itself and the wiring of the control cord 7 between the switching circuit 6 and the microphone 3 are It is extremely time consuming.
最も簡単な切換回路は、先にトークスイッチが押された
マイクを、トランシーバ−のマイク回路に接続する方式
であるが、この方式では複数のマイクに優先順位が設定
できない。マイクに優先順位が設けられると他のマイク
がどのような状態にあっても、特定のマイクからは常時
送信できる為最も便利に使用できる。The simplest switching circuit is one in which the microphone whose talk switch was pressed first is connected to the microphone circuit of the transceiver, but with this method it is not possible to set priorities for multiple microphones. When microphones are prioritized, a specific microphone can always transmit data regardless of the status of other microphones, making it most convenient to use.
又、切換回路を有するものは、設計時にマイクの接続台
数が決定され、接続されるマイクの数に制約を受ける。Furthermore, in the case of a device having a switching circuit, the number of microphones to be connected is determined at the time of design, and the number of microphones to be connected is limited.
本発明はこれ等の欠点を除去することを目的に開発され
たもので、本発明の重要な目的は、切換回路が不要で、
マイクとトランシーバー本体との接続コードが省略でき
、更に、マイクに簡単に優先順位が設定できる複数のマ
イクとスピーカーとが接続されたトランシーバ−を提供
するにある。The present invention was developed to eliminate these drawbacks, and an important objective of the present invention is to eliminate the need for a switching circuit;
To provide a transceiver connected to a plurality of microphones and speakers, which can omit a connection cord between the microphone and the transceiver body, and furthermore can easily set priorities for the microphones.
又、本発明の他の重要な目的は、配線がいたつて簡単で
マイクの接続台数に制約を受けない複数のマイクとスピ
ーカーとが接続されたトランシーバ−を提供するにある
。Another important object of the present invention is to provide a transceiver in which a plurality of microphones and speakers are connected, which allows easy wiring and is not limited by the number of connected microphones.
［従来の問題点を解決する為の手段］
トランシーバ−は、マイク回路とスピーカー回路とに、
電源ラインを介して複数のマイクとスピーカーとが並列
に接続されている。マイクとスピーカーとは、親送受信
手段と、この親送受信手段から離れて配設される複ｖＩ
組の子送受信手段とを介してトランシーバー本体に接続
され、子送受信手段は、マイクから入力された音声信号
で搬送波をＦＭ変調して送信する子送信機と、親送受信
手段から送られて来るＦＭ変調波を検波して音声出力を
スピーカーに加える子送信機とを備えている。[Means for solving conventional problems] The transceiver has a microphone circuit and a speaker circuit.
A plurality of microphones and speakers are connected in parallel via a power line. A microphone and a speaker are a main transmitting/receiving means and a multi-VI which is arranged apart from this main transmitting/receiving means.
The child transmitter/receiver is connected to the transceiver main body via a pair of child transmitter/receivers, and the child transmitter/receiver is connected to a child transmitter that FM modulates a carrier wave using the audio signal input from the microphone and transmits the FM signal, and an FM transmitter sent from the parent transmitter/receiver. It is equipped with a slave transmitter that detects the modulated wave and adds audio output to the speaker.
親送受信手段は子送信機から送られて来るＦＭ変調波を
検波してトランシーバー本体のマイク回路に人力する親
受信機と、トランシーバー本体のスピーカー回路に接続
されて、トランシーバー本体のスピーカー回路の出力信
号で搬送波をＦＭ変調して送信する親送信機とを備えて
いる。複数組の子送受信手段は同一周波数の搬送波を音
声信号でＦＭ変調しており、更に、親送受信手段と子送
信手段のアンテナ端子は、親送受信手段と子送受信手段
とに電力を供給する電源ラインに接続されている。複数
の子送受信手段の信号が、電源ラインと親送受信手段を
介してトランシーバー本体に伝送される。The main transmitting/receiving means includes a main receiver that detects the FM modulated wave sent from the child transmitter and inputs it to the microphone circuit of the transceiver main body, and a main receiver that is connected to the speaker circuit of the transceiver main body and outputs the output signal from the speaker circuit of the transceiver main body. and a main transmitter that FM-modulates a carrier wave and transmits it. The plural sets of child transmitting/receiving means FM modulate carrier waves of the same frequency with audio signals, and the antenna terminals of the parent transmitting/receiving means and the child transmitting/receiving means are connected to power lines that supply power to the parent transmitting/receiving means and the child transmitting/receiving means. It is connected to the. Signals from the plurality of slave transmitting/receiving means are transmitted to the transceiver body via the power supply line and the master transmitting/receiving means.
［作用効果コ
複数組のマイクとスピーカーとが、親送受信手段と子送
受信手段とを介してトランシーバー本体に接続されてい
る。トランシーバ−から離れて設けられるマイクからの
人力信号は、子送受信手段から親送受信手段に送られ、
親送受信手段からトランシーバー本体のマイク回路に送
られる。子送受信手段は、マイクの人力信号で搬送波を
ＦＭ変調して親送受信手段に電送する。この為、複数の
子送受信手段から同時にＦＭ変調波が電送されると、最
も強い電波のみが親送受信手段に受信され、弱いＦＭ電
波は受信されない。ＦＭ変調された電波は、強さが異な
る複数の電波が人力されると、強い電波のみが受信され
て、弱い電波は受信されない独得の特性がある。この特
性は、ＦＭ受信機が、周波数の変化のみを検出して音声
信号を取り出し、振幅の変化をリミッタ−で完全に除く
ことが出来る為である。従って、ＡＭ変調波のように、
複数の電波が同時に入力された時に発生するビートによ
る妨害も発生しない。この為、本発明のトランシーバ−
は、切換回路を使用せずに、各々のマイクに簡単に優先
順位をつけることが出来、接続回路が簡単でしかも便利
に使用できる。マイクの優先順位は、親送受信手段の入
力信号レベルで決定される。従って、マイクの優先順位
は、子送受信手段と親送受信手段との距離、あるいは、
子送受信手段の送信出力で簡単に調整できる。[Operations and Effects] A plurality of sets of microphones and speakers are connected to the transceiver body via the parent transmitting/receiving means and the slave transmitting/receiving means. A human input signal from a microphone provided apart from the transceiver is sent from the slave transmitting/receiving means to the parent transmitting/receiving means,
The signal is sent from the main transmitting/receiving means to the microphone circuit of the transceiver body. The secondary transmitting/receiving means FM-modulates the carrier wave using a human input signal from a microphone and transmits it to the master transmitting/receiving means. For this reason, when FM modulated waves are simultaneously transmitted from a plurality of child transmitting/receiving means, only the strongest radio waves are received by the master transmitting/receiving means, and weaker FM radio waves are not received. FM modulated radio waves have a unique characteristic that when multiple radio waves of different strengths are manually applied, only the strong radio waves are received and the weak radio waves are not received. This characteristic is due to the fact that the FM receiver extracts the audio signal by detecting only changes in frequency, and can completely eliminate changes in amplitude using a limiter. Therefore, like an AM modulated wave,
There is no interference caused by beats that occur when multiple radio waves are input at the same time. For this reason, the transceiver of the present invention
With this, it is possible to easily prioritize each microphone without using a switching circuit, the connection circuit is simple, and it is convenient to use. The priority of the microphones is determined by the input signal level of the main transmitting/receiving means. Therefore, the microphone priority is determined by the distance between the child transmitting/receiving means and the parent transmitting/receiving means, or
It can be easily adjusted by adjusting the transmission output of the slave transmitting/receiving means.
また、本発明のトランシーバ−は、電源ラインをＦＭ電
波の伝送線路に併用するので、マイク並びにスピーカー
とトランシーバー本体との接続が不用で、配線工事がい
たって簡単に出来、しかも、設＠場所を簡単に変更でき
る特徴も実現される。In addition, since the transceiver of the present invention uses the power line as a transmission line for FM radio waves, there is no need to connect the microphone or speaker to the transceiver body, making wiring work very simple and easy to install. Features that can be changed are also realized.
更に又、切換回路を必要としないので、子送受信手段の
接続台数に制約を受けず、装置の設計が簡単で、しかも
単一機種で多用途に使用できる。Furthermore, since no switching circuit is required, there is no restriction on the number of slave transmitting/receiving means to be connected, the device is simple to design, and a single model can be used for a variety of purposes.
［好ましい実施例］ 以下、本発明の実施例を図面に基づいて説明する。[Preferred embodiment] Embodiments of the present invention will be described below based on the drawings.
第１図に示す複数のマイク８とスピーカー９とが接続さ
れたトランシーバ−は、トランシーバ本体ｌＯと、この
トランシーバー本体ｌＯのマイク回路１１とスピーカー
回路】２とに接続されている親送受信手段１３と、この
親送受信手段１３から離れた箇所に配設されてマイク８
とスピーカー９とが接続されている複数台の子送受信手
段１４とを備えている。The transceiver to which a plurality of microphones 8 and speakers 9 are connected as shown in FIG. , the microphone 8 is arranged at a location away from this main transmitting/receiving means 13.
and a plurality of child transmitting/receiving means 14 to which the speaker 9 is connected.
親送受信手段１３は、トランシーバー本体１０のスピー
カー回路１２から出力される信号を、ＦＭ変調して送信
する親送信６１５と、子送受信手段１４から送られてく
るＦＭ変調波を受信して検波した後、トランシーバー本
体ｌＯのマイク回路１１に人力する親受信機１６と、ト
ランシーバー本体を切り換える送受切換回路１７とを備
える。The master transmitter/receiver 13 receives and detects the FM modulated wave sent from the master transmitter 615 that modulates and transmits the signal output from the speaker circuit 12 of the transceiver body 10 and the child transmitter/receiver 14. , a main receiver 16 that is manually connected to the microphone circuit 11 of the transceiver main body 10, and a transmission/reception switching circuit 17 that switches the transceiver main body.
親送信機１５は、スピーカー回路１２の出力信号（音声
信号）で搬送波をＦＭ変調するＦＭ変調回路１日と、Ｆ
Ｍ変調波を電力増幅して電源ラインに送信する高周波の
電力増幅回路１９とを備えている。The main transmitter 15 includes an FM modulation circuit that FM modulates a carrier wave using the output signal (audio signal) of the speaker circuit 12;
It also includes a high frequency power amplification circuit 19 that amplifies the power of the M modulated wave and transmits it to the power supply line.
親受信機１６は、電源ラインを介して子通信機２０から
送られてくるＦＭ変調波を受信してアンプ２３で増幅し
た後、振幅を制限するリミッタ−２１と、リミッタ−２
１の出力波をＦＭ検波して音声信号を取り出すＦＭ検波
回路２２とを備え、ＦＭ検波回路２２の出力がマイク回
路に人力される。The main receiver 16 receives the FM modulated wave sent from the child communication device 20 via the power line, amplifies it with an amplifier 23, and then connects a limiter 21 that limits the amplitude, and a limiter 2
The FM detection circuit 22 extracts an audio signal by performing FM detection on the output wave of the FM detection circuit 22, and the output of the FM detection circuit 22 is inputted to a microphone circuit.
送受切換回路１７は、親受信機１６のリミッタ−２１の
出力信号に含まれる搬送波を検出して、子通信４１！２
０の送信状態を調べ、子通信６２０が送信状態にあると
きにだけ、トランシーバー本体１０を送信状態に切り換
える。即ち、トランシーバー本体ｌＯは、常時受信状態
にセットされ、子通信８１２０から送信されたときにだ
け送信状態に切り換えられる。The transmission/reception switching circuit 17 detects the carrier wave included in the output signal of the limiter 21 of the main receiver 16 and switches the child communication 41!2.
0 is checked, and the transceiver body 10 is switched to the transmitting state only when the child communication 620 is in the transmitting state. That is, the transceiver body IO is always set in the receiving state and is switched to the transmitting state only when a transmission is received from the child communication 8120.
送受切換回路１７は、子通信機２０のＦＭＩＩＩ送波を
検出せず、例えば子通信機２０が特定周波数のトーン信
号を変調して送信し、これを受信してトランシーバー本
体１０を送信状態に切り喚えることも可能である。この
場合送受切換回路１７は、ＦＭ検波回路２２の出力信号
を検出する。The transmission/reception switching circuit 17 does not detect the FMIII transmission from the child communication device 20, but, for example, the child communication device 20 modulates and transmits a tone signal of a specific frequency, receives this, and switches the transceiver main body 10 to the transmission state. It is also possible to call. In this case, the transmission/reception switching circuit 17 detects the output signal of the FM detection circuit 22.
子送受信手段１４は、マイク８から人力される信号を電
源ライン２４を介して親受信機１６に伝送する子通信８
１２０と、電源ライン２４を通って親送信機１５から送
られてくる信号を受信する子受信ｎ２５と、子通信機２
０と子受信機２５とを切り換えていずれか一方を動作さ
せる送受切換回路とを備える。The child transmitting/receiving means 14 is a child communication unit 8 that transmits a signal manually inputted from the microphone 8 to the main receiver 16 via the power line 24.
120, a child receiver n25 that receives signals sent from the parent transmitter 15 through the power line 24, and a child communication device 2.
0 and the child receiver 25 to operate either one.
子通信６２０は、接続されたマイク８からの人力信号を
増幅するマイクアンプ２７と、マイクアンプ２７の出力
信号で搬送波をＦＭ変調するＦＭ変調回路２８と、ＦＭ
変調された信号を電力増幅する電力増幅回路２９とを備
えている。The child communication 620 includes a microphone amplifier 27 that amplifies the human power signal from the connected microphone 8, an FM modulation circuit 28 that modulates the carrier wave with the output signal of the microphone amplifier 27, and an FM
It also includes a power amplification circuit 29 that amplifies the power of the modulated signal.
子受信機２５は、電源ライン２４から人力されるＦＭ変
調波を増幅するアンプ３０と、アンプ３０の出力波を振
幅制限して雑音を除去するりミツター３１と、リミッタ
−３１の出力をＦＭ検波するＦＭ検波回路３２と、ＦＭ
検波回路の出力を電力増幅してスピーカーに送る電力増
幅回路３３とを備える。The slave receiver 25 includes an amplifier 30 that amplifies the FM modulated wave input from the power line 24, a limiter 31 that limits the amplitude of the output wave of the amplifier 30 to remove noise, and performs FM detection on the output of the limiter 31. The FM detection circuit 32 and the FM
It includes a power amplification circuit 33 that amplifies the power of the output of the detection circuit and sends it to the speaker.
送受切換回路２６は、トークスイッチ３４に制御されて
子送信機２０と子受信機２５とを切り換える。即ち、ト
ークスイッチ３４が押されてマイク８に音声信号を人力
するときにだけ、子送信機２０を動作させ、通常は子受
信８！２５のみを動作させる。The transmission/reception switching circuit 26 is controlled by the talk switch 34 to switch between the child transmitter 20 and the child receiver 25. That is, only when the talk switch 34 is pressed and an audio signal is input to the microphone 8, the slave transmitter 20 is operated, and normally only the slave receivers 8!25 are operated.
ところで、複数の子送受信手段の子送信８１２０は、全
て同一周波数の搬送波を使用する。搬送波の周波数は、
１０ＫＨｚ 〜５００ＭＨｚ、好ましくは、１５〜１０
００ＫＨｚの範囲に調整される。By the way, the child transmissions 8120 of the plurality of child transmitting/receiving means all use carrier waves of the same frequency. The frequency of the carrier wave is
10KHz to 500MHz, preferably 15 to 10
00KHz range.
子送信機２０の搬送波と親送信機１５の搬送波とは異な
る周波数に決定するのが良い。親送信機１５と子送信機
２０の搬送波の周波数が異なるものは、親送信機１５を
待機状態に切り換える必要がなく、これを常時送信状態
にできる。It is preferable that the carrier waves of the child transmitter 20 and the carrier wave of the parent transmitter 15 are determined to have different frequencies. If the carrier waves of the parent transmitter 15 and the child transmitter 20 have different frequencies, there is no need to switch the parent transmitter 15 to the standby state, and it can be kept in the transmitting state at all times.
子送信機２０の送出出力は、電源ラインの減衰量、子送
受信手段１４と親送受信手段１３との距離、子送受信手
段１４の優先順位等を考慮して決定されるが、通常数ミ
リワラトル数ワット、好ましくは１０ミリワツト〜５０
０ミリワツトの範囲に調整される。The output power of the child transmitter 20 is determined by taking into consideration the amount of attenuation of the power line, the distance between the child transmitting/receiving means 14 and the parent transmitting/receiving means 13, the priority of the child transmitting/receiving means 14, etc., but is usually several milliwatts. , preferably 10 milliwatts to 50 milliwatts
It is adjusted to a range of 0 milliwatts.
親送信機１５の送信出力も子送信８１２０の送信出力と
ほぼ同レベルに調整される。The transmission output of the parent transmitter 15 is also adjusted to approximately the same level as the transmission output of the child transmitter 8120.
［動作］
子送信機２０が送信しない通常の状態に於ては、トラン
シーバー本体１０の受信機３５と親送信機１５と子受信
機２５とが動作状態にある。この状態で、トランシーバ
ー本体ＩＯが電波を受信すると電波が増幅検波されて音
声信号が、親送信機１５から電源ラインによって全ての
子受信機２５に送られる。[Operation] In a normal state in which the slave transmitter 20 is not transmitting, the receiver 35 of the transceiver body 10, the master transmitter 15, and the slave receiver 25 are in an operating state. In this state, when the transceiver main body IO receives a radio wave, the radio wave is amplified and detected, and an audio signal is sent from the main transmitter 15 to all child receivers 25 via the power line.
いずれかの子送受信手段１４のトークスイッチ３４が押
されると、その子送受信手段の子送信機２０が送信状態
になり、マイク８に人力される音声は、ＦＭ変調されて
電源ライン２４から親送受信手段１３に送られる。親送
受信手段１３は、ＦＭ変調波の搬送波を送受切換回路が
検出し、トランシーバー本体ｌＯの送信機を動作させ、
親受信４１６が受信した音声信号をトランシーバー本体
の送信機３６に入力し、送信機が音声信号を送信する。When the talk switch 34 of any slave transmitting/receiving means 14 is pressed, the slave transmitter 20 of the slave transmitting/receiving means 14 enters the transmitting state, and the voice input to the microphone 8 is FM modulated and sent from the power line 24 to the master transmitting/receiving means 13. Sent. In the main transmitting/receiving means 13, the transmitting/receiving switching circuit detects the carrier wave of the FM modulated wave, and operates the transmitter of the transceiver body lO.
The voice signal received by the master receiver 416 is input to the transmitter 36 of the transceiver body, and the transmitter transmits the voice signal.
いずれかの子送受信手段１４が送信状態にあるとき、別
の子送受信手段のトークスイッチ３４が押されて、複数
の子送受信手段１４が同時に送信状態になると、親送受
信手段１３の近くに接続され、あるいは送信出力の強い
子送受信手段１４ｂ）らの強いＦＭ変調波で、弱い子送
受信手段１４からＦＭ変調波がマスクされ、親送受信手
段１３には、強いＦＭ変調波のみが受信されてその信号
がトランシーバー本体１０から送信される。即ち、強い
ＦＭ変調波が弱いＦＭ変調に混合されて、強いＦＭ波の
振幅が変動されても、振幅変動はリミッタ−で均一に揃
えられて除去される。この為、複数の子送受信手段１４
が同時に送信状態となっても、親送受信手段１３に強く
人感する子送受信手段１４からの信号が優先してトラン
シーバー本体に伝送される。When one of the child transmitting/receiving means 14 is in the transmitting state, if the talk switch 34 of another child transmitting/receiving means is pressed and a plurality of child transmitting/receiving means 14 enter the transmitting state at the same time, the child transmitting/receiving means 14 is connected near the parent transmitting/receiving means 13, or The strong FM modulated waves from the child transmitting/receiving means 14b) with strong transmission output mask the FM modulated waves from the weak child transmitting/receiving means 14, and the main transmitting/receiving means 13 receives only the strong FM modulated waves and transmits the signal to the transceiver. It is transmitted from the main body 10. That is, even if a strong FM modulation wave is mixed with a weak FM modulation wave and the amplitude of the strong FM wave fluctuates, the amplitude fluctuations are uniformly equalized and removed by the limiter. For this reason, multiple child transmitting/receiving means 14
Even if both are in the transmitting state at the same time, the signal from the slave transmitting/receiving means 14 that is strongly sensitive to the parent transmitting/receiving means 13 is preferentially transmitted to the transceiver body.
第１図は本発明の一実施例を示すトランシーバ−のブロ
ック線図、第２図および第３図は従来のトランシーバ−
のマイクとスピーカーの接続例を示すブロック線図であ
る。
ｌ・・マイク回路、 ２・・スピーカー回路、３・
φマイク、 ４・・スピーカー、５・・トラン
シーバー本体、
６・・切換回路、 ７・・制御コード、８・・マ
イク、 ９・命スピーカー、ｌＯ・・トランシ
ーバー本体、
１１・・マイク回路、 １２・・スピーカー回路、１
３・・親送受信手段、１４・・子送受信手段、１５・・
親送信機、 １６・・親受信機、１７・・送受切換
回路、１８・・ＦＭ変調回路、１９・・電力増幅回路、
２０・・子送信機、２１・・リミッタ−１２２・・ＦＭ
検波回路、２３・・アンプ、 ２４・・電源ライ
ン、２５・・子受信機、 ２６・・送受切換回路、
２７・・マイクアンプ、２８・・ＦＭ変調回路、２９・
・電力増幅回路、３０・・アンプ、３１・・リミッタ−
１３２・・ＦＭ検波回路、３３・・電力増幅回路、３４
・・トークスイッチ、３５・・受信機、 ３６・・
送信機。FIG. 1 is a block diagram of a transceiver showing an embodiment of the present invention, and FIGS. 2 and 3 are block diagrams of a conventional transceiver.
FIG. 2 is a block diagram showing an example of a connection between a microphone and a speaker. l...Microphone circuit, 2...Speaker circuit, 3...
φ Microphone, 4... Speaker, 5... Transceiver body, 6... Switching circuit, 7... Control code, 8... Microphone, 9... Life speaker, lO... Transceiver body, 11... Microphone circuit, 12...・Speaker circuit, 1
3... Parent transmitting/receiving means, 14... Child transmitting/receiving means, 15...
Main transmitter, 16.. Main receiver, 17.. Transmission/reception switching circuit, 18.. FM modulation circuit, 19.. Power amplification circuit.
20...Slave transmitter, 21...Limiter-122...FM
Detection circuit, 23...Amplifier, 24...Power line, 25...Slave receiver, 26...Transmission/reception switching circuit,
27...Microphone amplifier, 28...FM modulation circuit, 29...
・Power amplification circuit, 30...Amplifier, 31...Limiter
132...FM detection circuit, 33...Power amplifier circuit, 34
...Talk switch, 35...Receiver, 36...
transmitter.
Claims (2)
とスピーカーとが並列に接続されたトランシーバーに於
て、マイクとスピーカーとが、親送受信手段と、この親
送受信手段から離れて配設される複数組の子送受信手段
とを介してトランシーバー本体に接続されており、子送
受信手段は、マイクから入力された音声信号で搬送波を
変調して送信する子送信機と、親送受信手段から送られ
て来る変調波を検波して音声出力をスピーカーに加える
子受信機とを備えており、一方親送受信手段は子送信機
から送られて来る変調波を検波してトランシーバー本体
のマイク回路に入力する親受信機と、トランシーバー本
体のスピーカー回路に接続されて、トランシーバ−本体
のスピーカー回路の出力信号で搬送波を変調して送信す
る親送信機とを備えており、複数組の子送受信手段の子
送信機は同一周波数の搬送波を音声信号でＦＭ変調して
おり、更に、親送受信手段と子送受信手段のアンテナは
、親送受信手段と子送受信手段とに電力を供給する電源
ラインに接続されており、複数の子送受信手段の信号が
、電源ラインと親送受信手段を介してトランシーバー本
体に伝送されるように構成されたことを特徴とする複数
のマイクとスピーカーとが接続されたトランシーバー。(1) In a transceiver in which a plurality of microphones and speakers are connected in parallel to a microphone circuit and a speaker circuit, the microphones and speakers are arranged separately from the main transmitting/receiving means and the main transmitting/receiving means. It is connected to the transceiver main body via multiple sets of child transmitting/receiving means. The transceiver is equipped with a slave receiver that detects the modulated wave coming from the slave transmitter and outputs audio output to the speaker, while the parent transmitter/receiver detects the modulated wave sent from the slave transmitter and inputs it to the microphone circuit of the transceiver body. It is equipped with a receiver and a parent transmitter that is connected to the speaker circuit of the transceiver body and that modulates and transmits a carrier wave with the output signal of the speaker circuit of the transceiver body, and the slave transmitter of the plurality of sets of slave transmitting and receiving means. FM modulates a carrier wave of the same frequency with an audio signal, and furthermore, the antennas of the master transmitting/receiving means and the slave transmitting/receiving means are connected to a power line that supplies power to the master transmitting/receiving means and the slave transmitting/receiving means. A transceiver connected to a plurality of microphones and speakers, characterized in that a signal from a child transmitting/receiving means is transmitted to the transceiver body via a power line and a parent transmitting/receiving means.
００ＭＨｚの範囲に決定される特許請求の範囲第１項記
載の複数のマイクとスピーカーとが接続されたトランシ
ーバー。(2) The frequency of the carrier wave to be FM modulated is 10KHz to 5KHz.
A transceiver to which a plurality of microphones and speakers are connected, as set forth in claim 1, wherein the range is determined to be 0.00 MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24007386A JPS6393228A (en) | 1986-10-07 | 1986-10-07 | Transceiver connected with plural microphones and speakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24007386A JPS6393228A (en) | 1986-10-07 | 1986-10-07 | Transceiver connected with plural microphones and speakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6393228A true JPS6393228A (en) | 1988-04-23 |
Family
ID=17054088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24007386A Pending JPS6393228A (en) | 1986-10-07 | 1986-10-07 | Transceiver connected with plural microphones and speakers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6393228A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952960A (en) * | 1982-09-20 | 1984-03-27 | Sharp Corp | Interphone |
| JPS5995761A (en) * | 1982-11-24 | 1984-06-01 | Sony Corp | Carrier system interphone |
-
1986
- 1986-10-07 JP JP24007386A patent/JPS6393228A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5952960A (en) * | 1982-09-20 | 1984-03-27 | Sharp Corp | Interphone |
| JPS5995761A (en) * | 1982-11-24 | 1984-06-01 | Sony Corp | Carrier system interphone |
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