JP3315579B2 - Wireless device squelch control device and wireless device squelch control method - Google Patents
Wireless device squelch control device and wireless device squelch control methodInfo
- Publication number
- JP3315579B2 JP3315579B2 JP07458496A JP7458496A JP3315579B2 JP 3315579 B2 JP3315579 B2 JP 3315579B2 JP 07458496 A JP07458496 A JP 07458496A JP 7458496 A JP7458496 A JP 7458496A JP 3315579 B2 JP3315579 B2 JP 3315579B2
- Authority
- JP
- Japan
- Prior art keywords
- wireless device
- signal
- identification signal
- electric field
- squelch control
- 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.)
- Expired - Fee Related
Links
Landscapes
- Noise Elimination (AREA)
- Transmitters (AREA)
- Circuits Of Receivers In General (AREA)
- Transceivers (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、受信時のノイズ
低減を図ると共に、識別信号を用いて基地局と移動局と
の間で種々の情報を送受信可能な無線機のスケルチ制御
装置及び無線機のスケルチ制御方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a squelch control device and a radio device for a radio device capable of transmitting and receiving various information between a base station and a mobile station using an identification signal while reducing noise at the time of reception. Squelch control method.
【０００２】[0002]
【従来の技術】図７は、例えば、実開昭５８−１６９４
２号公報の“無線機におけるスケルチ回路”に開示され
た従来の装置を示すブロック図である。図において、７
１は無線機の受信信号の入力端子、７２は識別信号（ト
ーン信号）を分離するためのバンドパスフィルター（Ｂ
ＰＦ）、７３はバンドパスフィルター７２からの信号を
さらにＤＣ信号に置き換える検波回路、７４は検波回路
７３からのレベルによりＯＮ／ＯＦＦ判定を行うスイッ
チング回路、７５は受信信号の増幅器であると共にスイ
ッチング回路７４からの制御信号により出力をＯＦＦで
きるオーディオ回路、７６はオーディオ回路７５から送
出された音声信号を出力するスピーカである。2. Description of the Related Art FIG.
FIG. 2 is a block diagram illustrating a conventional device disclosed in “Squelch circuit in a wireless device” of Japanese Patent Publication No. 2 (hereinafter referred to as “No. 2”). In the figure, 7
Reference numeral 1 denotes an input terminal of a reception signal of a radio, and 72 denotes a band-pass filter (B) for separating an identification signal (tone signal).
PF) and 73 are detection circuits for further converting the signal from the band-pass filter 72 into DC signals, 74 is a switching circuit for performing ON / OFF determination based on the level from the detection circuit 73, and 75 is an amplifier for the received signal and a switching circuit An audio circuit whose output can be turned off by a control signal from 74, and a speaker for outputting an audio signal transmitted from the audio circuit 75.
【０００３】つぎに動作について説明する。図７におい
て、無線機の受信信号には識別信号が含まれている。入
力端子７１より入った信号はバンドパスフィルター７２
に送られ、バンドパスフィルター７２により特定の周波
数により成る識別信号が取り出される。つぎに、検波回
路７３により交流成分をＤＣ成分に変換し、スイッチン
グ回路７４により識別信号の有無がＯＮ／ＯＦＦ信号に
変換される。Next, the operation will be described. In FIG. 7, the identification signal is included in the reception signal of the wireless device. The signal input from the input terminal 71 is applied to a bandpass filter 72.
, And an identification signal having a specific frequency is extracted by the band-pass filter 72. Next, the AC component is converted into a DC component by the detection circuit 73, and the presence or absence of the identification signal is converted into an ON / OFF signal by the switching circuit 74.
【０００４】このＯＮ／ＯＦＦ信号をオーディオ回路７
５のスピーカ出力制御に使うことにより受信信号がある
時のみスピーカ出力を出すことが可能となり、不要なノ
イズの出力を防ぐことができる。The ON / OFF signal is transmitted to an audio circuit 7
By using for the speaker output control of No. 5, it is possible to output the speaker only when there is a received signal, and it is possible to prevent unnecessary noise output.
【０００５】また、別の方法として識別信号として音声
信号以外の周波数帯域（３ｋＨｚ以上）を利用してオー
ディオ回路７５のスピーカ出力制御を行うこともでき
る。つまりノイズ音（音声信号以外）を受信したときに
も同様にスピーカＯＮ／ＯＦＦを制御することができ
る。As another method, the speaker output of the audio circuit 75 can be controlled by using a frequency band (3 kHz or more) other than the audio signal as the identification signal. That is, the speaker ON / OFF can be similarly controlled when a noise sound (other than an audio signal) is received.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記従
来の技術によれば、無線機のスケルチ制御レベルが一定
であるため、弱電界あるいは強電界にも拘らずスケルチ
テールを長く取る必要があり、通話終了時の雑音（ノイ
ズ）が聞こえてしまうという問題点があった。However, according to the above prior art, since the squelch control level of the wireless device is constant, it is necessary to take a long squelch tail regardless of a weak electric field or a strong electric field. There was a problem that noise at the end was heard.
【０００７】また、電界強度を測定するＲＳＳＩ回路の
応答速度が遅いことや、瞬時に音声とノイズ音を判別す
る事が困難であるため、同様に通話終了時の雑音（ノイ
ズ）が聞こえてしまうという問題点があった。[0007] Further, since the response speed of the RSSI circuit for measuring the electric field strength is slow and it is difficult to instantaneously distinguish between voice and noise, noise (noise) at the end of a call is also heard. There was a problem.
【０００８】さらに、従来の技術によれば、受信電界の
みでスケルチ制御を行っているため、移動無線機の場
合、サービスエリアを広くすると不要なノイズが多くな
り、不要なノイズが少なくなるようにエリアを設定する
とサービスエリアが狭くなるという問題点があった。Further, according to the prior art, since squelch control is performed only with the received electric field, in the case of a mobile radio, if the service area is widened, unnecessary noise increases and unnecessary noise decreases. There is a problem that the service area becomes narrower when the area is set.
【０００９】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、スケルチ制御の性能を向上させ
て不要なノイズの出力を回避すると共に、移動中に通達
距離の限界点で通話する場合における、基地局からの通
話が確実に受信でき通達距離を長くすることができる無
線機のスケルチ制御装置及びスケルチ制御方法を得るこ
とを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. The present invention has been made to improve the performance of squelch control to avoid unnecessary noise output, and to make a call at the limit of a communication distance while moving. It is an object of the present invention to provide a squelch control device and a squelch control method for a wireless device that can reliably receive a call from a base station and extend the communication distance.
【００１０】[0010]
【課題を解決するための手段】上記の目的を達成するた
めに、この発明の無線機のスケルチ制御装置は、電界強
度がある一定以上のレベルにあって受信信号中に含まれ
る識別信号により、スピーカ、イヤホンまたは増幅器の
出力のＯＮ／ＯＦＦ制御を行う構成とし、送信時、一定
時間のパルス幅から成る「音声信号のＯＮ／ＯＦＦ制御
用の識別信号」を、所定の遅延を与えた音声信号に合成
して送信する識別信号送信手段と、受信時、分離された
識別信号に対して前記遅延を与えたタイミングで、音声
信号のＯＮ／ＯＦＦ制御を行う制御手段と、を備えたも
のである。In order to achieve the above object, a squelch control device for a radio device according to the present invention uses an identification signal included in a received signal when the electric field strength is at a certain level or more. speakers, and configured to perform ON / OFF control of the output of the earphone or amplifier, during transmission, certain
"ON / OFF control of audio signal consisting of time pulse width
Synthesis signal into an audio signal with a predetermined delay
Signal transmitting means for transmitting and receiving
At the time when the delay is given to the identification signal,
And control means for performing ON / OFF control of the signal .
【００１１】この発明の無線機のスケルチ制御装置は、
送信時に、識別信号送信手段が、一定時間のパルス幅か
ら成る「音声信号のＯＮ／ＯＦＦ制御用の識別信号」
を、所定の遅延を与えた音声信号に合成して送信し、受
信時に、制御手段が、分離された識別信号に対して前記
遅延を与えたタイミングで、音声信号のＯＮ／ＯＦＦ制
御を行うことにより、受信側であらかじめ音声信号の開
始タイミング及び終了タイミングを予測でき、スピーカ
出力が正確に判定される。また、識別信号（トーン）出
力は一定の周期のため、もし識別信号が受信できない場
合でも終話とみなしてスピーカをＯＦＦすることができ
る。[0011] A squelch control device for a wireless device according to the present invention comprises:
During transmission, the identification signal transmitting means, whether the pulse width for a predetermined time
"Identification signal for ON / OFF control of audio signal"
Is synthesized with an audio signal having a predetermined delay and transmitted, and upon reception, the control means controls the separated identification signal with respect to the separated identification signal.
ON / OFF control of audio signal at timing with delay
By performing the control , the reception side can predict the start timing and the end timing of the audio signal in advance, and the speaker output is accurately determined. Further, since the output of the identification signal (tone) has a fixed period, even if the identification signal cannot be received, the speaker can be regarded as the end of the call and the speaker can be turned off.
【００１２】つぎの発明の無線機のスケルチ制御装置
は、さらに、受信時に、受信信号の電界強度を測定する
電界強度測定手段と、送信時に、前記測定した電界強度
に基づいて送信する識別信号のパルス幅とパルス間隔を
変動させて、受信信号の電界強度情報を送信する電界強
度情報送信手段とを備えたものである。[0012] The squelch control device for a wireless device according to the next invention further comprises an electric field strength measuring means for measuring the electric field strength of the received signal at the time of reception, and an identification signal transmitted at the time of transmission based on the measured electric field strength. Electric field intensity information transmitting means for transmitting the electric field intensity information of the received signal by varying the pulse width and the pulse interval.
【００１３】この発明の無線機のスケルチ制御装置は、
測定した電界強度に基づいて送信する識別信号のパルス
幅とパルス間隔を変動させることにより、パルス幅とパ
ルス間隔に測定した受信信号の電界強度情報を載せて、
相手側に送信する。[0013] A squelch control device for a wireless device according to the present invention comprises:
By varying the pulse width and pulse interval of the identification signal to be transmitted based on the measured electric field strength, the electric field strength information of the measured received signal is placed on the pulse width and the pulse interval,
Send to the other party.
【００１４】つぎの発明の無線機のスケルチ制御装置
は、さらに、受信時に、移動速度及び方位を測定する測
定手段と、送信時に、前記測定した移動速度及び方位に
基づいて送信する識別信号のパルス幅とパルス間隔を変
動させて、受信側の稼働中情報を送信する稼働中情報送
信手段とを備えたものである。[0014] The squelch control device for a wireless device according to the next invention further comprises a measuring means for measuring a moving speed and a direction at the time of reception, and a pulse of an identification signal transmitted at the time of transmission based on the measured moving speed and direction. Operating information transmitting means for transmitting the operating information on the receiving side by changing the width and the pulse interval.
【００１５】この発明の無線機のスケルチ制御装置は、
測定した移動速度及び方位に基づいて送信する識別信号
のパルス幅とパルス間隔を変動させることにより、パル
ス幅とパルス間隔に測定した稼働中情報（移動速度及び
方位）を載せて、相手側に送信する。[0015] The squelch control device for a wireless device according to the present invention comprises:
By varying the pulse width and pulse interval of the identification signal to be transmitted based on the measured moving speed and direction, the in-operation information (moving speed and direction) measured is transmitted in the pulse width and pulse interval and transmitted to the other party. I do.
【００１６】つぎの発明の無線機のスケルチ制御装置
は、前記測定手段がＧＰＳ受信機であるものである。In a squelch control apparatus for a wireless device according to the next invention, the measuring means is a GPS receiver.
【００１７】この発明による無線機のスケルチ制御装置
は、ＧＰＳ受信機を用いることにより、より正確な情報
を送信する。[0017] The squelch control device for a wireless device according to the present invention transmits more accurate information by using a GPS receiver.
【００１８】つぎの発明の無線機のスケルチ制御装置
は、前記識別信号送信手段は、個別の無線機毎や特定の
グループの無線機毎に、前記識別信号のトーン（周波
数）やトーン出力のタイミングを変えるものである。In the squelch control apparatus for a wireless device according to the next invention, the identification signal transmitting means includes a tone (frequency) of the identification signal for each individual wireless device or each wireless device of a specific group.
) And the timing of the tone output .
【００１９】この発明による無線機のスケルチ制御装置
は、個別の無線機毎や特定のグループの無線機毎に、前
記識別信号のトーン（周波数）やトーン出力のタイミン
グを変える。これによって、複数の受信側の無線機のス
ピーカ制御を、同時にかつ多様に行える。The squelch control apparatus of wireless apparatus according to the present invention, for each radio of the individual radio or for each particular group, before
Identification signal tone (frequency) and tone output timing
Change As a result, speaker controls of a plurality of wireless devices on the receiving side can be performed simultaneously and variously.
【００２０】つぎの発明による無線機のスケルチ制御方
法は、電界強度がある一定以上のレベルにあって受信信
号中に含まれる識別信号により、スピーカ、イヤホンま
たは増幅器の出力のＯＮ／ＯＦＦ制御を行うこととし、
送信時、一定時間のパルス幅から成る「音声信号のＯＮ
／ＯＦＦ制御用の識別信号」を、所定の遅延を与えた音
声信号に合成して送信し、受信時、分離された識別信号
に対して前記遅延を与えたタイミングで、音声信号のＯ
Ｎ／ＯＦＦ制御を行うものである。In the squelch control method for a wireless device according to the next invention, ON / OFF control of the output of a speaker, an earphone or an amplifier is performed according to an identification signal included in a received signal when the electric field strength is at a certain level or more. That
At the time of transmission, the "ON of audio signal"
/ OFF control identification signal ”with a predetermined delay
Combined with the voice signal and transmitted, when receiving, the separated identification signal
At the time when the delay is given to the audio signal O
N / OFF control is performed .
【００２１】この発明による無線機のスケルチ制御方法
では、送信側の無線機が、一定時間のパルス幅から成る
「音声信号のＯＮ／ＯＦＦ制御用の識別信号」を、所定
の遅延を与えた音声信号に合成して送信し、受信側の無
線機が、分離された識別信号に対して前記遅延を与えた
タイミングで、音声信号のＯＮ／ＯＦＦ制御を行うこと
により、受信側であらかじめ音声信号の開始タイミング
及び終了タイミングを予測するので、スピーカ出力が正
確に判定される。また、識別信号（トーン）出力は一定
の周期のため、もし識別信号が受信できない場合でも終
話とみなしてスピーカをＯＦＦすることができる。In the squelch control method for a wireless device according to the present invention, the wireless device on the transmitting side has a pulse width of a fixed time.
"Identification signal for ON / OFF control of audio signal"
The signal is synthesized with the delayed audio signal and transmitted, and the receiving-side wireless device applies the delay to the separated identification signal.
By performing the ON / OFF control of the audio signal at the timing , the start timing and the end timing of the audio signal are predicted in advance on the receiving side, so that the speaker output is accurately determined. Further, since the output of the identification signal (tone) has a fixed period, even if the identification signal cannot be received, the speaker can be regarded as the end of the call and the speaker can be turned off.
【００２２】つぎの発明による無線機のスケルチ制御方
法は、受信時に、受信信号の電界強度を測定し、送信時
に、前記測定した電界強度に基づいて送信する識別信号
のパルス幅とパルス間隔を変動させて、受信信号の電界
強度情報を送信するものである。In the squelch control method for a wireless device according to the next invention, the electric field strength of a received signal is measured at the time of reception, and the pulse width and pulse interval of the identification signal to be transmitted are changed at the time of transmission based on the measured electric field strength. Then, the electric field strength information of the received signal is transmitted.
【００２３】この発明による無線機のスケルチ制御方法
は、測定した電界強度に基づいて送信する識別信号のパ
ルス幅とパルス間隔を変動させることにより、パルス幅
とパルス間隔に測定した受信信号の電界強度情報を載せ
て、相手側に送信する。In the squelch control method for a wireless device according to the present invention, the pulse width and the pulse interval of the identification signal to be transmitted are varied based on the measured electric field intensity, so that the electric field intensity of the received signal measured at the pulse width and the pulse interval is changed. Put the information and send it to the other party.
【００２４】つぎの発明による無線機のスケルチ制御方
法は、受信時に、移動速度及び方位を測定し、送信時
に、前記測定した移動速度及び方位に基づいて送信する
識別信号のパルス幅とパルス間隔を変動させて、受信側
の稼働中情報を送信するものである。In the squelch control method for a wireless device according to the next invention, a moving speed and a direction are measured at the time of reception, and a pulse width and a pulse interval of an identification signal to be transmitted are determined at the time of transmission based on the measured moving speed and direction. The information on the operation of the receiving side is transmitted while being varied.
【００２５】この発明による無線機のスケルチ制御方法
は、測定した移動速度及び方位に基づいて送信する識別
信号のパルス幅とパルス間隔を変動させることにより、
パルス幅とパルス間隔に測定した稼働中情報（移動速度
及び方位）を載せて、相手側に送信する。According to the squelch control method for a wireless device according to the present invention, the pulse width and the pulse interval of the identification signal to be transmitted are varied based on the measured moving speed and azimuth.
The in-operation information (moving speed and azimuth) measured at the pulse width and the pulse interval is carried and transmitted to the other party.
【００２６】つぎの発明による無線機のスケルチ制御方
法は、前記移動速度及び方位の測定をＧＰＳ受信機を用
いて測定するものである。In a squelch control method for a wireless device according to the next invention, the moving speed and the azimuth are measured using a GPS receiver.
【００２７】この発明による無線機のスケルチ制御方法
は、ＧＰＳ受信機を用いることにより、より正確な情報
を送信する。The squelch control method for a wireless device according to the present invention transmits more accurate information by using a GPS receiver.
【００２８】つぎの発明による無線機のスケルチ制御方
法は、個別の無線機毎や特定のグループの無線機毎に、
前記識別信号のトーン（周波数）やトーン出力のタイミ
ングを変えるものである。A squelch control method for a wireless device according to the next invention is provided for each individual wireless device or each specific group of wireless devices.
Timing of the tone (frequency) and tone output of the identification signal
It changes the language .
【００２９】この発明による無線機のスケルチ制御方法
は、個別の無線機毎や特定のグループの無線機毎に、前
記識別信号のトーン（周波数）やトーン出力のタイミン
グを変える。これによって、複数の受信側の無線機のス
ピーカ制御を、同時にかつ多様に行える。The squelch control method of a wireless device according to the invention, for each radio of the individual radio or for each particular group, before
Identification signal tone (frequency) and tone output timing
Change As a result, speaker controls of a plurality of wireless devices on the receiving side can be performed simultaneously and variously.
【００３０】[0030]
【発明の実施の形態】以下、この発明の無線機のスケル
チ制御装置及びスケルチ制御方法について、〔実施の形
態１〕、〔実施の形態２〕、〔実施の形態３〕、〔実施
の形態４〕、〔実施の形態５〕の順で、図面を参照して
詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a squelch control device and a squelch control method for a wireless device according to the present invention will be described with reference to [Embodiment 1], [Embodiment 2], [Embodiment 3], [Embodiment 4]. ] And [Embodiment 5] will be described in detail with reference to the drawings.
【００３１】〔実施の形態１〕図１（ａ）、（ｂ）は、
この発明を適用した実施の形態１の無線機の送信部及び
受信部のブロック構成図を示す。[Embodiment 1] FIGS. 1 (a) and 1 (b)
FIG. 2 is a block diagram illustrating a transmitting unit and a receiving unit of the wireless device according to the first embodiment to which the present invention is applied.
【００３２】図１（ａ）は無線機の送信部を示し、図に
おいて、１はマイク、２はマイクアンプ、３は音声周波
数を制限するバンドパスフィルター（ＢＰＦ）、４は遅
延回路、５は合成回路、６は変調回路（ＭＯＤ）、７は
電力増幅回路、８は送信起動入力、９は送信検出回路、
１０はコード生成回路、１３は複数の発振器（ＯＳＣ１
〜ＯＳＣｎ）、１４はモデム回路、１５はアンテナを示
す。なお，モデム回路１４には、コード変換回路１１
と、コード変換回路１１の出力と発振器１３の出力を合
成する合成回路１２とが含まれている。FIG. 1A shows a transmission unit of a radio, in which 1 is a microphone, 2 is a microphone amplifier, 3 is a band-pass filter (BPF) for limiting an audio frequency, 4 is a delay circuit, and 5 is a delay circuit. A synthesis circuit, 6 a modulation circuit (MOD), 7 a power amplification circuit, 8 a transmission start input, 9 a transmission detection circuit,
10 is a code generation circuit, 13 is a plurality of oscillators (OSC1
ＯＳOSCn), 14 is a modem circuit, and 15 is an antenna. The modem circuit 14 includes the code conversion circuit 11
And a synthesizing circuit 12 for synthesizing the output of the code conversion circuit 11 and the output of the oscillator 13.
【００３３】図１（ｂ）は無線機の受信部を示し、図に
おいて、２１はアンテナ、２２は周波数変換器、２３は
局部発振器、２４はミキサー回路、２５は検波回路、２
６は音声信号のバンドパスフィルター（ＢＰＦ）、２７
はモデム回路、２８はモデム回路２７を構成するモデム
信号用のバンドパスフィルター、２９はモデム回路２７
を構成するモデム信号のコード変換回路、３０はコード
判別回路、３１はスイッチング回路、３２はオーディオ
アンプ、３３はスピーカである。なお、図示を省略する
が、受信信号の電界強度を検出する電界強度検出回路を
備えているものとする。FIG. 1 (b) shows a receiver of the radio, in which 21 is an antenna, 22 is a frequency converter, 23 is a local oscillator, 24 is a mixer circuit, 25 is a detector circuit,
6 is a band pass filter (BPF) of the audio signal, 27
Is a modem circuit, 28 is a bandpass filter for a modem signal constituting the modem circuit 27, and 29 is a modem circuit 27.
, 30 is a code discriminating circuit, 31 is a switching circuit, 32 is an audio amplifier, and 33 is a speaker. Although not shown, an electric field strength detection circuit for detecting the electric field strength of the received signal is provided.
【００３４】以上の構成において、（１）送信部の動
作、（２）受信部の動作の順でその動作を説明する。In the above configuration, the operation will be described in the order of (1) the operation of the transmission unit and (2) the operation of the reception unit.
【００３５】（１）送信部の動作 図１（ａ）及び図２を参照して、送信部の動作について
説明する。なお、図２は送信部の各部の波形を示してい
る。マイク１より入った入力（音声信号）は、図２の
音声入力で示すようなアナログ信号（波形）になる。こ
のマイク１からの音声入力が、オーディオアンプ２、バ
ンドパスフィルター３を通ったのち遅延回路４を通る
と、図２の遅延回路出力で示すような出力波形とな
る。ここで、ａは送信開始時の遅延時間を示し、ｂは送
信終了時の遅延時間を示す。(1) Operation of Transmitting Unit The operation of the transmitting unit will be described with reference to FIGS. FIG. 2 shows the waveform of each part of the transmission unit. The input (audio signal) input from the microphone 1 becomes an analog signal (waveform) as shown by the audio input in FIG. When the audio input from the microphone 1 passes through the audio amplifier 2 and the band-pass filter 3 and then through the delay circuit 4, an output waveform as shown by the delay circuit output in FIG. 2 is obtained. Here, a indicates a delay time at the start of transmission, and b indicates a delay time at the end of transmission.
【００３６】また、送信起動入力８があると送信検出回
路９を介して図２の送信起動入力で示す波形が得られ
る。コード生成回路１０は、図２の送信起動入力を入
力すると、表１に示すような、入力条件とコード生成回
路出力の対応テーブル（コード生成テーブル）に基づい
て、一定周期、一定パルス幅のコード（トーン１〜トー
ン４）をモデム回路１４へ出力する。モデム回路１４
は、入力したコードをモデム内（すなわち、コード変換
回路１１及びＭＩＸ１２）でさらに変換して、図２の
モデム回路出力を出力する。ここで、ｃはモデムスピー
カＯＮ信号、ｄはモデムスピーカＯＦＦ信号を示す。When the transmission start input 8 is present, the waveform shown by the transmission start input in FIG. When the transmission start input shown in FIG. 2 is input, the code generation circuit 10 generates a code having a constant period and a constant pulse width based on a correspondence table (code generation table) between the input conditions and the code generation circuit output as shown in Table 1. (Tone 1 to Tone 4) are output to the modem circuit 14. Modem circuit 14
Converts the input code further in the modem (that is, the code conversion circuit 11 and the MIX 12) and outputs the output of the modem circuit of FIG. Here, c indicates a modem speaker ON signal, and d indicates a modem speaker OFF signal.
【００３７】[0037]
【表１】 [Table 1]
【００３８】合成回路５は、モデム回路１４の出力と音
声信号とを合成し、図２の合成回路出力を出力する。
この信号が、変調回路６、電力増幅回路７を通ってアン
テナ１５から出力される。The synthesizing circuit 5 synthesizes the output of the modem circuit 14 and the audio signal, and outputs the output of the synthesizing circuit shown in FIG.
This signal is output from the antenna 15 through the modulation circuit 6 and the power amplification circuit 7.
【００３９】このように送信部は、一定時間のパルス幅
から成り、かつ、表１を用いて制御内容に応じて設定さ
れた数種の識別信号（トーン１〜トーン４）を任意の間
隔で送信する。As described above, the transmitting unit transmits several kinds of identification signals (tone 1 to tone 4) having a pulse width of a fixed time and set according to the control contents using Table 1 at arbitrary intervals. Send.
【００４０】（２）受信部の動作 つぎに、図１（ｂ）及び図３を参照して、受信部の動作
について説明する。なお、図３は受信部の各部の波形を
示している。アンテナ２２より入った受信信号は、周波
数変換器２２、ミキサー回路２４、検波回路２５を介し
て復調されて、図３の受信回路出力で示すような受信
信号となる。ここで、ｅで示す部分は受信ノイズ音を示
している。(2) Operation of the Receiving Unit Next, the operation of the receiving unit will be described with reference to FIGS. FIG. 3 shows the waveform of each part of the receiving unit. The received signal input from the antenna 22 is demodulated through the frequency converter 22, the mixer circuit 24, and the detection circuit 25, and becomes a received signal as shown by the output of the receiving circuit in FIG. Here, the portion indicated by e indicates the reception noise sound.
【００４１】つぎに、図３の受信回路出力は、バンド
パスフィルター２６とモデム回路２７のそれぞれに送ら
れ、バンドパスフィルター２６によって音声信号が分離
されて、図３の音声バンドパスフィルター出力が得ら
れる。一方、モデム回路２７は、図３の受信回路出力
をモデム信号として入力し、各周波数ごとにバンドパス
フィルター２８により分離して図３の、モデムバン
ドスフィルター出力を得る。続いて、コード変換回路２
９でコードに変換する。コード変換回路２９の出力は、
コード判別回路３０に送られて、送信時に、コードに変
換した内容（表１）を逆変換する。Next, the output of the receiving circuit of FIG. 3 is sent to each of the band-pass filter 26 and the modem circuit 27, and the audio signal is separated by the band-pass filter 26 to obtain the audio band-pass filter output of FIG. Can be On the other hand, the modem circuit 27 receives the output of the receiving circuit shown in FIG. 3 as a modem signal and separates it by a band pass filter 28 for each frequency to obtain the output of the modem band filter shown in FIG. Subsequently, the code conversion circuit 2
At 9 the code is converted. The output of the code conversion circuit 29 is
It is sent to the code discriminating circuit 30 and, at the time of transmission, reversely converts the contents converted into codes (Table 1).
【００４２】スイッチング回路３１はコード判別回路３
０より出るスピーカＯＮ，ＯＦＦ信号及び電界強度入力
により図３ののスピーカ出力を得る。なお，図３の
電界強度は、図示しない電界強度検出回路によって検出
される。The switching circuit 31 is a code discriminating circuit 3
The speaker output shown in FIG. 3 is obtained by the speaker ON / OFF signal and the electric field strength input from 0. The electric field strength shown in FIG. 3 is detected by a not-shown electric field strength detection circuit.
【００４３】この方法の特徴の一つとして、送信起動信
号が音声信号より先に出る点にある。これにより、受信
側はあらかじめ音声の出始め、終わりを予測し、スピー
カ出力を正確に決定できる。また、トーン出力は一定の
周期のため、もし受信できなくても終話とみなしてスピ
ーカをＯＦＦすることができる。One of the features of this method is that the transmission start signal is output earlier than the voice signal. As a result, the receiving side can predict the start and end of the sound in advance and accurately determine the speaker output. Further, since the tone output has a fixed period, even if the tone cannot be received, the speaker can be regarded as the end of the call and the speaker can be turned off.
【００４４】すなわち、音声を遅延して送出し、かつ終
話タイミングを明確にスケルチ信号により受信側に正確
に送ることができるので終話時のノイズがなくなる。That is, since the voice can be transmitted with a delay and the end time of the call can be clearly sent to the receiving side accurately by the squelch signal, noise at the end of the call can be eliminated.
【００４５】〔実施の形態２〕実施の形態２は、実施の
形態１の無線機のスケルチ制御装置に加えて、さらに受
信時に、受信信号の電界強度を測定し、送信時に、前記
測定した電界強度に基づいて送信する識別信号（トー
ン）のパルス幅とパルス間隔を変動させて、受信信号の
電界強度情報を送信するようにしたものである。[Second Embodiment] In a second embodiment, in addition to the squelch control device of the wireless device of the first embodiment, the electric field strength of a received signal is measured at the time of reception, and the measured electric field strength is measured at the time of transmission. The pulse width and the pulse interval of the identification signal (tone) to be transmitted are changed based on the intensity, and the electric field intensity information of the received signal is transmitted.
【００４６】図４は、実施の形態２の無線機の送信部及
び受信部のブロック構成図を示し、図１で示した実施の
形態１の構成に、電界強度検出回路（ＲＳＳＩ）４１
と、比較回路４２とを追加したものである。なお、基本
的な構成及び動作は実施の形態１と共通であるため、こ
こでは異なる部分のみを説明する。FIG. 4 is a block diagram showing a transmitting unit and a receiving unit of a radio apparatus according to the second embodiment. The configuration of the first embodiment shown in FIG.
And a comparison circuit 42 are added. Since the basic configuration and operation are common to the first embodiment, only different parts will be described here.
【００４７】受信部において、電界強度検出回路４１
は、検波回路２５から受信信号を入力すると、電界強度
を測定して、比較回路４２へ出力する。比較回路４２
は，入力した電界強度と基準電界を比較して比較結果
（例えば、比較結果１〜２）を送信部のコード生成回路
１０へ出力する。In the receiving section, the electric field strength detection circuit 41
Receives the received signal from the detection circuit 25, measures the electric field strength, and outputs it to the comparison circuit. Comparison circuit 42
Compares the input electric field strength with the reference electric field and outputs a comparison result (for example, comparison results 1 and 2) to the code generation circuit 10 of the transmission unit.
【００４８】コード生成回路１０は、比較回路４２から
比較結果を入力し、これを表２に示すコードにして、モ
デム回路１４に出力する。モデム回路１４は、コード生
成回路１０からのコードに基づいて、トーン出力間隔ま
たはトーン出力幅を変動させる。これによって相手側の
無線機へ電界強度情報を送ることができる。The code generation circuit 10 receives the comparison result from the comparison circuit 42, converts the result into a code shown in Table 2, and outputs the code to the modem circuit 14. The modem circuit 14 varies the tone output interval or tone output width based on the code from the code generation circuit 10. As a result, the electric field strength information can be sent to the wireless device of the other party.
【００４９】これは基地局において移動を行う子局に対
し受信情報を知らせるのに有効である。This is effective in informing the mobile station moving in the base station of the received information.
【００５０】[0050]
【表２】 [Table 2]
【００５１】〔実施の形態３〕実施の形態３は、実施の
形態２の無線機のスケルチ制御装置に加えて、さらに受
信時に、移動速度及び方位を測定し、送信時に、前記測
定した移動速度及び方位に基づいて送信する識別信号
（トーン）のパルス幅とパルス間隔を変動させて、受信
側の稼働中情報を送信するようにしたものである。ここ
では、無線機が車載無線機（移動局）であるものとして
説明する。[Third Embodiment] In a third embodiment, in addition to the squelch control device of the wireless device of the second embodiment, the moving speed and the direction are further measured at the time of reception, and the measured moving speed is measured at the time of transmission. The operating information on the receiving side is transmitted by varying the pulse width and pulse interval of the identification signal (tone) to be transmitted based on the direction and the direction. Here, a description will be given on the assumption that the wireless device is a vehicle-mounted wireless device (mobile station).
【００５２】図５は、実施の形態３の無線機の送信部及
び受信部のブロック構成図を示し、図３で示した実施の
形態２の構成に、車速センサー４３と、方位センサー４
４と、演算回路４５とを追加したものである。なお、基
本的な構成及び動作は実施の形態２と共通であるため、
ここでは異なる部分のみを説明する。FIG. 5 is a block diagram showing a transmitting unit and a receiving unit of a radio device according to the third embodiment. The vehicle speed sensor 43 and the direction sensor 4 are added to the configuration of the second embodiment shown in FIG.
4 and an arithmetic circuit 45 are added. Since the basic configuration and operation are common to the second embodiment,
Here, only different portions will be described.
【００５３】図５において、車速センサー４３及び方位
センサー４４は移動局（または車載無線機）へ演算回路
４５を介して取り付けられており、これらの情報（移動
速度及び方位）は演算回路４５を介して送信部のコード
生成回路１０へ送られる。In FIG. 5, a vehicle speed sensor 43 and a direction sensor 44 are attached to a mobile station (or an on-vehicle radio) via an arithmetic circuit 45, and the information (moving speed and direction) is provided via the arithmetic circuit 45. To the code generation circuit 10 of the transmission unit.
【００５４】コード生成回路１０は、入力した移動速度
及び方位の情報に基づいて、コードを生成し、モデム回
路１４に出力する。モデム回路１４は、コード生成回路
１０からのコードに基づいて、トーン出力間隔またはト
ーン出力幅を変動させる。これによって相手側の無線機
へ受信側の稼働中情報を送ることができる。The code generation circuit 10 generates a code based on the input information on the moving speed and the direction, and outputs the generated code to the modem circuit 14. The modem circuit 14 varies the tone output interval or tone output width based on the code from the code generation circuit 10. Thus, the operating information of the receiving side can be sent to the wireless device of the other side.
【００５５】〔実施の形態４〕 図６は実施の形態４の無線機の送信部及び受信部のブロ
ック構成図を示し、図５で示した実施の形態３の車速セ
ンサー４３、方位センサー４４及び演算回路４５をＧＰ
Ｓ受信機４６、座標演算回路４７に置き換えたものであ
る。Fourth Embodiment FIG. 6 shows a block diagram of a transmitting unit and a receiving unit of a wireless device according to a fourth embodiment. The vehicle speed sensor 43 , the direction sensor 44, and the direction sensor 44 according to the third embodiment shown in FIG. Operation circuit 45 is GP
The S receiver 46 and the coordinate calculation circuit 47 are replaced.
【００５６】実施の形態４では、ＧＰＳ受信機４６の使
用により、より正確な情報を送ることができる。In the fourth embodiment, more accurate information can be transmitted by using the GPS receiver 46.
【００５７】〔実施の形態５〕実施の形態５は、前述し
た実施の形態１〜実施の形態４において、コード生成回
路１０で使用する入力条件とコード生成回路出力の対応
テーブル（コード生成テーブル）として、表３で示すよ
うにテーブルを使用し、個別の無線機毎や特定のグルー
プの無線機毎に、識別信号の全体のトーンを変えたり、
トーン出力のタイミングを変えたりするようにしたもの
である。[Fifth Embodiment] In the fifth embodiment, the correspondence table (code generation table) between the input conditions used in the code generation circuit 10 and the output of the code generation circuit in the first to fourth embodiments described above. As shown in Table 3, a table is used to change the overall tone of the identification signal for each individual wireless device or each specific group of wireless devices,
It changes the timing of tone output.
【００５８】[0058]
【表３】 [Table 3]
【００５９】したがって、個別の無線機やグループごと
に全体のトーンを変えたりトーン出力のタイミングをず
らすことにより、受信機のスピーカの制御が多様に可能
となる。すなわち、スケルチ情報を、異なる無線機のス
ピーカのＯＮ／ＯＦＦ制御や電界強度及び移動局の速
度、位置、方位等の多目的に利用できて様々なデータの
リアルタイムな伝送に応用できる。Therefore, for each individual radio or group
By shifting the timing of changing or tone outputs the whole tone, the control of the receiver speaker is variously possible. That is, the squelch information can be used for various purposes such as ON / OFF control of speakers of different wireless devices, electric field strength, and speed, position, and direction of a mobile station, and can be applied to real-time transmission of various data.
【００６０】[0060]
【発明の効果】以上の説明より明らかなように、この発
明の無線機のスケルチ制御装置は、送信時に、一定時間
のパルス幅から成る「音声信号のＯＮ／ＯＦＦ制御用の
識別信号」を、所定の遅延を与えた音声信号に合成して
送信する識別信号送信手段と、受信時に、分離された識
別信号に対して前記遅延を与えたタイミングで、音声信
号のＯＮ／ＯＦＦ制御を行う制御手段と、を備えたた
め、スケルチ制御の性能を向上させて不要なノイズの出
力を回避すると共に、移動中に通達距離の限界点で通話
する場合における、基地局からの通話が確実に受信でき
通達距離を長くすることができる。As is apparent from the above description, the squelch control apparatus for a radio device according to the present invention has a certain time during transmission.
For the ON / OFF control of the audio signal
Synthesis of the “identification signal” with the audio signal with a predetermined delay
The identification signal transmitting means to be transmitted and the separated
At the timing when the delay is given to another signal, the audio signal
And control means for performing ON / OFF control of the signal, thereby improving the performance of the squelch control to avoid output of unnecessary noise, and a base station in a case where a call is made at a limit point of a communication distance while moving. Can reliably receive the call from the user, and can increase the notification distance.
【００６１】つぎの発明の無線機のスケルチ制御装置
は、さらに、受信時に、受信信号の電界強度を測定する
電界強度測定手段と、送信時に、前記測定した電界強度
に基づいて送信する識別信号のパルス幅とパルス間隔を
変動させて、受信信号の電界強度情報を送信する電界強
度情報送信手段とを備えたため、パルス幅とパルス間隔
に測定した受信信号の電界強度情報を載せて、相手側に
送信することができ、スケルチ情報を多目的に利用でき
る。The squelch control device for a wireless device according to the next invention further includes an electric field intensity measuring means for measuring the electric field intensity of the received signal at the time of reception, and an identification signal transmitted at the time of transmission based on the measured electric field intensity. Since there is provided an electric field intensity information transmitting means for transmitting the electric field intensity information of the received signal by changing the pulse width and the pulse interval, the electric field intensity information of the received signal measured at the pulse width and the pulse interval is placed on the partner side. It can be transmitted and squelch information can be used for multiple purposes.
【００６２】つぎの発明の無線機のスケルチ制御装置
は、さらに、受信時に、移動速度及び方位を測定する測
定手段と、送信時に、前記測定した移動速度及び方位に
基づいて送信する識別信号のパルス幅とパルス間隔を変
動させて、受信側の稼働中情報を送信する稼働中情報送
信手段とを備えたため、パルス幅とパルス間隔に測定し
た稼働中情報（移動速度及び方位）を載せて、相手側に
送信することができ、スケルチ情報を多目的に利用でき
る。The squelch control device for a radio device according to the next invention further comprises a measuring means for measuring a moving speed and a direction during reception, and a pulse of an identification signal to be transmitted based on the measured moving speed and direction during transmission. An operating information transmitting means for transmitting the operating information on the receiving side by varying the width and the pulse interval is provided, so that the measured operating information (moving speed and direction) is placed on the pulse width and the pulse interval, and Side, and the squelch information can be used for multiple purposes.
【００６３】つぎの発明の無線機のスケルチ制御装置
は、前記測定手段がＧＰＳ受信機であるため、稼働中情
報としてより正確な情報を送信することができる。In the squelch control device for a wireless device according to the next invention, since the measuring means is a GPS receiver, more accurate information can be transmitted as the operating information.
【００６４】つぎの発明の無線機のスケルチ制御装置
は、前記識別信号送信手段が、個別の無線機毎や特定の
グループの無線機毎に、前記識別信号のトーン（周波
数）やトーン出力のタイミングを変えるため、複数の受
信側の無線機のスピーカ制御を、同時にかつ多様に行え
る。In the squelch control device for a wireless device according to the next invention, the identification signal transmitting means may include a tone (frequency) of the identification signal for each individual wireless device or each specific group of wireless devices.
) And the timing of tone output, the speaker control of a plurality of receiving-side radios can be performed simultaneously and in various ways.
【００６５】つぎの発明による無線機のスケルチ制御方
法においては、送信側の無線機が、一定時間のパルス幅
から成る「音声信号のＯＮ／ＯＦＦ制御用の識別信号」
を、所定の遅延を与えた音声信号に合成して送信し、受
信側の無線機が、分離された識別信号に対して前記遅延
を与えたタイミングで、音声信号のＯＮ／ＯＦＦ制御を
行うため、受信側であらかじめ音声信号の開始タイミン
グ及び終了タイミングを予測でき、スピーカ出力を正確
に判定できる。また、識別信号（トーン）出力は一定の
周期のため、もし識別信号が受信できない場合でも終話
とみなしてスピーカをＯＦＦすることができる。換言す
れば、スケルチ制御の性能を向上させて不要なノイズの
出力を回避すると共に、移動中に通達距離の限界点で通
話する場合における、基地局からの通話が確実に受信で
き通達距離を長くすることができる。In the squelch control method for a wireless device according to the next invention, the wireless device on the transmitting side has a pulse width of a predetermined time.
"Identification signal for ON / OFF control of audio signal"
Is synthesized with an audio signal with a predetermined delay and transmitted, and the receiving-side radio sets the delay with respect to the separated identification signal.
ON / OFF control of the audio signal at the timing given
Therefore , the receiving side can predict the start timing and the end timing of the audio signal in advance, and can accurately determine the speaker output. Further, since the output of the identification signal (tone) has a fixed period, even if the identification signal cannot be received, the speaker can be regarded as the end of the call and the speaker can be turned off. In other words, while improving the performance of the squelch control to avoid unnecessary noise output, when a call is made at the limit of the communication distance while moving, the communication from the base station can be reliably received and the communication distance can be increased. can do.
【００６６】つぎの発明による無線機のスケルチ制御方
法では、受信時に、受信信号の電界強度を測定し、送信
時に、前記測定した電界強度に基づいて送信する識別信
号のパルス幅とパルス間隔を変動させて、受信信号の電
界強度情報を送信するため、パルス幅とパルス間隔に測
定した受信信号の電界強度情報を載せて、相手側に送信
することができ、スケルチ情報を多目的に利用できる。In the squelch control method for a wireless device according to the next invention, the electric field strength of the received signal is measured at the time of reception, and the pulse width and pulse interval of the identification signal to be transmitted are changed based on the measured electric field strength at the time of transmission. Then, since the electric field strength information of the received signal is transmitted, the measured electric field strength information of the received signal can be carried on the pulse width and the pulse interval and transmitted to the other party, and the squelch information can be used for multiple purposes.
【００６７】つぎの発明による無線機のスケルチ制御方
法では、受信時に、移動速度及び方位を測定し、送信時
に、前記測定した移動速度及び方位に基づいて送信する
識別信号のパルス幅とパルス間隔を変動させて、受信側
の稼働中情報を送信するため、パルス幅とパルス間隔に
測定した稼働中情報（移動速度及び方位）を載せて、相
手側に送信することができ、スケルチ情報を多目的に利
用できる。In the squelch control method for a wireless device according to the next invention, the moving speed and the direction are measured at the time of reception, and the pulse width and pulse interval of the identification signal to be transmitted are determined at the time of transmission based on the measured moving speed and direction. In order to transmit the operating information of the receiving side by fluctuating, the operating information (moving speed and direction) measured on the pulse width and pulse interval can be transmitted to the other party, and the squelch information can be used for multiple purposes. Available.
【００６８】つぎの発明による無線機のスケルチ制御方
法では、移動速度及び方位の測定をＧＰＳ受信機を用い
て測定するため、より正確な情報を送信することができ
る。In the squelch control method for a wireless device according to the next invention, more accurate information can be transmitted because the measurement of the moving speed and the azimuth is performed using the GPS receiver.
【００６９】つぎの発明による無線機のスケルチ制御方
法は、個別の無線機毎や特定のグループの無線機毎に、
前記識別信号のトーン（周波数）やトーン出力のタイミ
ングを変えるため、複数の受信側の無線機のスピーカ制
御を、同時にかつ多様に行える。A squelch control method for a wireless device according to the next invention is provided for each individual wireless device or each specific group of wireless devices.
Timing of the tone (frequency) and tone output of the identification signal
Therefore, speaker control of a plurality of receiving-side radios can be performed simultaneously and in various ways.
【図１】 実施の形態１の無線機の送信部及び受信部の
構成を示すブロック図である。FIG. 1 is a block diagram illustrating a configuration of a transmission unit and a reception unit of a wireless device according to a first embodiment.
【図２】 実施の形態１の送信部の各部の波形を示す説
明図である。FIG. 2 is an explanatory diagram illustrating waveforms of respective units of a transmission unit according to the first embodiment.
【図３】 実施の形態１の受信部の各部の波形を示す説
明図である。FIG. 3 is an explanatory diagram showing waveforms of respective units of the receiving unit according to the first embodiment.
【図４】 実施の形態２の無線機の送信部及び受信部の
構成を示すブロック図である。FIG. 4 is a block diagram illustrating a configuration of a transmission unit and a reception unit of the wireless device according to the second embodiment.
【図５】 実施の形態３の無線機の送信部及び受信部の
構成を示すブロック図である。FIG. 5 is a block diagram illustrating a configuration of a transmission unit and a reception unit of the wireless device according to the third embodiment.
【図６】 実施の形態４の無線機の送信部及び受信部の
構成を示すブロック図である。FIG. 6 is a block diagram illustrating a configuration of a transmission unit and a reception unit of a wireless device according to a fourth embodiment.
【図７】 従来における装置の構成を示すブロック図で
ある。FIG. 7 is a block diagram showing a configuration of a conventional device.
１ マイク，２ マイクアンプ，３ バンドパスフィル
ター（ＢＰＦ），４遅延回路，５ 合成回路，６ 変調
回路（ＭＯＤ），７ 電力増幅回路，８ 送信起動入
力，９ 送信検出回路，１０ コード生成回路，１１
コード変換回路，１２ 合成回路，１３ 複数の発振器
（ＯＳＣ１〜ＯＳＣｎ），１４ モデム回路，１５ ア
ンテナ，２１ アンテナ，２２ 周波数変換器，２３
局部発振器，２４ ミキサー回路，２５ 検波回路，２
６ バンドパスフィルター（ＢＰＦ），２７ モデム回
路，２８ バンドパスフィルター，２９ コード変換回
路，３０ コード判別回路，３１ スイッチング回路，
３２ オーディオアンプ，３３ スピーカ，４１ 電界
強度検出回路（ＲＳＳＩ），４２ 比較回路，４３車速
センサー，４４ 方位センサー，４５ 演算回路，４６
ＧＰＳ受信機，４７ 座標演算回路1 microphone, 2 microphone amplifier, 3 band pass filter (BPF), 4 delay circuit, 5 synthesis circuit, 6 modulation circuit (MOD), 7 power amplification circuit, 8 transmission start input, 9 transmission detection circuit, 10 code generation circuit, 11
Code conversion circuit, 12 synthesis circuit, 13 multiple oscillators (OSC1 to OSCn), 14 modem circuit, 15 antennas, 21 antennas, 22 frequency converter, 23
Local oscillator, 24 mixer circuit, 25 detection circuit, 2
6 band pass filter (BPF), 27 modem circuit, 28 band pass filter, 29 code conversion circuit, 30 code discrimination circuit, 31 switching circuit,
32 audio amplifier, 33 speaker, 41 electric field strength detection circuit (RSSI), 42 comparison circuit, 43 vehicle speed sensor, 44 direction sensor, 45 operation circuit, 46
GPS receiver, 47 coordinate operation circuit
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H04B 1/10 H04B 1/04 H04B 1/16 H04B 1/40 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H04B 1/10 H04B 1/04 H04B 1/16 H04B 1/40
Claims (10)
て受信信号中に含まれる識別信号により、スピーカ、イ
ヤホンまたは増幅器の出力のＯＮ／ＯＦＦ制御を行う無
線機のスケルチ制御装置において、送信時、一定時間のパルス幅から成る「音声信号のＯＮ
／ＯＦＦ制御用の識別信号」を、所定の遅延を与えた音
声信号に合成して送信する識別信号送信手段と、 受信時、分離された識別信号に対して前記遅延を与えた
タイミングで、音声信号のＯＮ／ＯＦＦ制御を行う制御
手段と、 を備えたことを特徴とする無線機のスケルチ制御装置。The method according to claim 1 identification signal contained in the received signal be in level above a certain field strength is, the speaker, the squelch control apparatus radios performing ON / OFF control of the output of the earphone or amplifier, when transmitting , Consisting of a pulse width for a certain time
/ OFF control identification signal ”with a predetermined delay
An identification signal transmitting means for synthesizing a voice signal and transmitting the same, and upon reception, the delay is applied to the separated identification signal.
Control to perform ON / OFF control of audio signal at timing
Means, and a squelch control device for a wireless device.
を測定する電界強度測定手段と、送信時に、前記測定し
た電界強度に基づいて送信する識別信号のパルス幅とパ
ルス間隔を変動させて、受信信号の電界強度情報を送信
する電界強度情報送信手段とを備えたことを特徴とする
請求項１に記載の無線機のスケルチ制御装置。2. An electric field intensity measuring means for measuring an electric field intensity of a received signal at the time of reception, and a pulse width and a pulse interval of an identification signal to be transmitted based on the measured electric field intensity are varied at the time of transmission. 2. The squelch control device for a wireless device according to claim 1, further comprising electric field intensity information transmitting means for transmitting electric field intensity information of a received signal.
測定する測定手段と、送信時に、前記測定した移動速度
及び方位に基づいて送信する識別信号のパルス幅とパル
ス間隔を変動させて、受信側の稼働中情報を送信する稼
働中情報送信手段とを備えたことを特徴とする請求項１
または２に記載の無線機のスケルチ制御装置。3. A measuring means for measuring a moving speed and an azimuth at the time of reception, and a pulse width and a pulse interval of an identification signal to be transmitted at the time of transmission based on the measured moving speed and azimuth are varied. 2. An operating information transmitting means for transmitting operating information on the side.
Or the squelch control device for a wireless device according to 2.
を特徴とする請求項３に記載の無線機のスケルチ制御装
置。4. The squelch control device for a wireless device according to claim 3, wherein said measuring means is a GPS receiver.
毎や特定のグループの無線機毎に、前記識別信号のトー
ン（周波数）やトーン出力のタイミングを変えることを
特徴とする請求項１〜４のいずれか一つに記載の無線機
のスケルチ制御装置。Wherein said identification signal transmitting means, for each radio of the individual radio or for each particular group, toe of the identification signal
5. The squelch control device for a wireless device according to claim 1, wherein the timing of the tone (frequency) and the tone output is changed .
て受信信号中に含まれる識別信号により、スピーカ、イ
ヤホンまたは増幅器の出力のＯＮ／ＯＦＦ制御を行う無
線機のスケルチ制御方法において、送信時、一定時間の
パルス幅から成る「音声信号のＯＮ／ＯＦＦ制御用の識
別信号」を、所定の遅延を与えた音声信号に合成して送
信し、受信時、分離された識別信号に対して前記遅延を
与えたタイミングで、音声信号のＯＮ／ＯＦＦ制御を行
うことを特徴とする無線機のスケルチ制御方法。By 6. identification signal included in the received signal In the above a certain level the field strength is, the speaker, the squelch control method for radio to perform ON / OFF control of the output of the earphone or amplifier, when transmitting For a certain time
It consists of a pulse width "
Another signal '' and synthesize it with the audio signal with a predetermined delay.
, And upon reception, the delay is applied to the separated identification signal.
ON / OFF control of the audio signal is performed at the given timing.
Squelch control method for radio, characterized in that the Hare.
し、送信時に、前記測定した電界強度に基づいて送信す
る識別信号のパルス幅とパルス間隔を変動させて、受信
信号の電界強度情報を送信することを特徴とする請求項
６に記載の無線機のスケルチ制御方法。7. When receiving, the electric field strength of the received signal is measured, and at the time of transmission, the pulse width and the pulse interval of the identification signal to be transmitted are varied based on the measured electric field strength, and the electric field strength information of the received signal is obtained. The squelch control method for a wireless device according to claim 6, wherein the transmission is performed.
送信時に、前記測定した移動速度及び方位に基づいて送
信する識別信号のパルス幅とパルス間隔を変動させて、
受信側の稼働中情報を送信することを特徴とする請求項
６または７に記載の無線機のスケルチ制御方法。8. When receiving, a moving speed and a direction are measured,
At the time of transmission, by varying the pulse width and pulse interval of the identification signal to be transmitted based on the measured moving speed and direction,
8. The squelch control method for a wireless device according to claim 6, wherein operating information on the receiving side is transmitted.
信機を用いて測定することを特徴とする請求項８に記載
の無線機のスケルチ制御方法。9. The squelch control method for a wireless device according to claim 8, wherein the measurement of the moving speed and the azimuth is performed using a GPS receiver.
線機毎に、前記識別信号のトーン（周波数）やトーン出
力のタイミングを変えることを特徴とする請求項６〜９
のいずれか一つに記載の無線機のスケルチ制御方法。 10. A tone (frequency) or tone output of the identification signal for each individual wireless device or each specific group of wireless devices.
10. The timing of force is changed.
The squelch control method for a wireless device according to any one of the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07458496A JP3315579B2 (en) | 1996-03-28 | 1996-03-28 | Wireless device squelch control device and wireless device squelch control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07458496A JP3315579B2 (en) | 1996-03-28 | 1996-03-28 | Wireless device squelch control device and wireless device squelch control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09266449A JPH09266449A (en) | 1997-10-07 |
| JP3315579B2 true JP3315579B2 (en) | 2002-08-19 |
Family
ID=13551367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07458496A Expired - Fee Related JP3315579B2 (en) | 1996-03-28 | 1996-03-28 | Wireless device squelch control device and wireless device squelch control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3315579B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007267011A (en) * | 2006-03-28 | 2007-10-11 | Kenwood Corp | Signaling system of mobile wireless machine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4493467B2 (en) * | 2004-10-29 | 2010-06-30 | アイコム株式会社 | Transmitter and method for generating communication frame |
| JP2008148018A (en) * | 2006-12-11 | 2008-06-26 | Sharp Corp | Radio communication system and radio equipment |
-
1996
- 1996-03-28 JP JP07458496A patent/JP3315579B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007267011A (en) * | 2006-03-28 | 2007-10-11 | Kenwood Corp | Signaling system of mobile wireless machine |
| JP4736891B2 (en) * | 2006-03-28 | 2011-07-27 | 株式会社ケンウッド | Mobile radio |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09266449A (en) | 1997-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1530834B1 (en) | Dynamic frequency selection and radar detection with a wireless lan | |
| US6671503B1 (en) | Wireless microphone system | |
| JP3315579B2 (en) | Wireless device squelch control device and wireless device squelch control method | |
| JPS6326129A (en) | Control method for plural base stations | |
| JP4736891B2 (en) | Mobile radio | |
| JP3025934B2 (en) | Specified low power transceiver | |
| JP2751455B2 (en) | Receive electric field strength judgment method | |
| JP3019423B2 (en) | Receiver | |
| KR200180979Y1 (en) | auto search device for audio frequency of vehicle | |
| KR980007087A (en) | Radio broadcasting auto tuning device and method using cell phone | |
| KR920007370A (en) | Recognition of Callable and Non-callable Areas of Car Phone | |
| JP2564975Y2 (en) | Receiving machine | |
| JP4383214B2 (en) | Radio system identification method and identification apparatus | |
| JP3154914B2 (en) | Communication device | |
| JPH03114339A (en) | Cordless telephone set | |
| JPWO2014024278A1 (en) | Broadcast receiver | |
| JP2019110478A (en) | Communication device and volume control method | |
| JP2859230B2 (en) | Communication monitoring and control device | |
| JPH04119147U (en) | Out-of-range alarm sound generator for cordless telephones | |
| JPS5869142A (en) | Selecting system for radio base station | |
| JPS63164540A (en) | Deciding method for transmission range of cordless telephone set | |
| JPH0637656A (en) | Tone squelch circuit | |
| JP2001168753A (en) | Receiver | |
| JPH04267660A (en) | Idle channel discrimination method | |
| JPH06252796A (en) | Cordless telephone set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080607 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080607 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090607 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100607 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100607 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110607 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |