WO1997036385A1 - Mobile communication device - Google Patents

Mobile communication device Download PDF

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Publication number
WO1997036385A1
WO1997036385A1 PCT/JP1997/000981 JP9700981W WO9736385A1 WO 1997036385 A1 WO1997036385 A1 WO 1997036385A1 JP 9700981 W JP9700981 W JP 9700981W WO 9736385 A1 WO9736385 A1 WO 9736385A1
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WIPO (PCT)
Prior art keywords
warning sound
communication device
mobile communication
volume
electric field
Prior art date
Application number
PCT/JP1997/000981
Other languages
French (fr)
Japanese (ja)
Inventor
Takayuki Yuki
Original Assignee
Rohm Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rohm Co., Ltd. filed Critical Rohm Co., Ltd.
Publication of WO1997036385A1 publication Critical patent/WO1997036385A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength

Definitions

  • the present invention relates to a mobile communication device capable of transmitting and receiving sound information while moving, such as a mobile phone and a PHS (Personal Handy Phone System) terminal.
  • a mobile communication device capable of transmitting and receiving sound information while moving, such as a mobile phone and a PHS (Personal Handy Phone System) terminal.
  • PHS Personal Handy Phone System
  • the PHS terminal emits a warning sound when the received radio wave becomes weak. That is, a means for detecting the electric field strength of the received radio wave is provided, and when the detected strength is equal to or less than a predetermined value, a warning sound generating circuit for generating a warning sound is driven, and an audio interface is provided. The warning sound data having a constant volume is superimposed on the received sound data in the receiving sound data. As a result, the speaker emits a warning sound in addition to the received sound.
  • Fig. 7 shows the relationship between the electric field strength E and the alarm sound iA.
  • the warning sound is mixed with the received sound output from the speaker, the user is weak in the electric field strength of the receiving compressive wave below the predetermined value, that is, it is not suitable for communication. Since it can be recognized, it is possible to move in a direction in which there is no warning sound and perform good communication.
  • the movement may be stopped or returned in the opposite direction.However, the warning sound is already mixed with the received sound immediately after the communication starts. If this is the case, the user will have to rely on the quality of the received sound only for the power to change places, and in some cases may move in a direction where the field strength is weaker. However, there is a problem that it is difficult to perform good communication.
  • W indicates the electric field strength range where communication is not possible.
  • the present invention provides a method that allows a user to quickly switch from a place with poor communication to a place with good communication. It is an object of the present invention to provide a mobile communication device that can move to a mobile communication device.
  • the volume of the alarm sound according to the electric field intensity Is made variable.
  • the volume of the warning sound is increased, and if the compressing strength is a predetermined value, the volume of the warning sound is set to zero, so that the electric field strength is equal to or less than the predetermined value.
  • the volume of the warning sound when the communication is close to the predetermined value that is, the communication state is not good but communication can be performed without any problem, is not so large.
  • FIG. 1 is a block diagram of a mobile communication device (PiiS terminal) according to a first embodiment of the present invention.
  • FIG. 2 is a diagram showing details of a connection portion between the audio interface 7 and the alarm sound generation circuit 12 in FIG. 1,
  • FIG. 3 is a block diagram of a mobile communication device (PHS terminal) according to a second embodiment of the present invention.
  • FIG. 4 is a diagram showing details of an audio interface 7 in FIG. 3 and a connection portion of a warning sound generation circuit with a sound adjustment function.
  • FIG. 5 is a diagram showing an example of the relationship between the electric field strength and the volume of the warning sound in the present invention.
  • FIG. 6 is a diagram showing another example of the relationship between the electric field strength and the volume of the warning sound in the present invention.
  • FIG. 7 is a diagram showing the relationship between the electric field strength and the volume of the warning sound in the prior art.
  • FIG. 1 is a block diagram of a mobile communication device according to an embodiment of the present invention, in which a PHS terminal is used as the mobile communication device.
  • 1 is an antenna
  • 2 is an RF section
  • 3 is a modulation section
  • 4 is a demodulation section
  • 5 is a TDMA / TDD processing section
  • 6 is an audio codec
  • 7 is an audio interface
  • 8 is a microphone.
  • Reference numeral 9 denotes a speaker
  • 10 denotes an 11 control unit
  • 11 denotes a controller for controlling the operation of each unit
  • 12 denotes a warning sound generation circuit.
  • the controller 11 is composed of, for example, a microcomputer.
  • the voice (transmitted sound) input from the microphone 8 is transferred to the voice codec 6 via the audio interface-face 7.
  • the audio which is an analog signal
  • the digital signal is subjected to multiplexing processing by a TDMA / TDD processing unit 5, and transferred to a modulation unit 3.
  • the modulation unit 3 changes the carrier (radio wave) based on the transferred signal, amplifies it in the RF unit 2, and transmits it from the antenna 1.
  • the carrier received from antenna 1 is transferred to demodulation section 4 via RF section 2.
  • the demodulation unit 4 detects the original audio signal from the transferred carrier wave, and the multiplex processing applied to the audio signal is decomposed by the TDMA * TDD processing unit 5. Since the audio signal is a digital signal, the audio signal is converted into an analog signal by the audio codec 6, and is output from the speaker 9 via the audio interface 7 as audio (received sound).
  • the RF unit 2 has a function of detecting the electric field intensity of the received radio wave, and transfers the detected electric field intensity to the RF control unit 10 as a voltage value.
  • the RF control unit 10 controls the RF unit 2 and converts the electric field strength (voltage value) transferred from the RF unit 2 into a digital code and transfers the digital code to the controller 11.
  • the controller 11 has a pre-programmed warning sound gain value for the electric field strength, and outputs the audio sound gain value corresponding to the electric field strength transferred from the RF control unit 10 to an audio interface. Output to source 7.
  • FIG. 2 shows the details of the connection state between the audio interface 7 and the alarm sound generating circuit 12.
  • the audio interface 7 has an operational amplifier 71, resistors R1, R2, a variable resistor R3, and a DZA (digital Z analog) converter 72 on the receiving side.
  • the resistor R 1 is a feedback resistor connected between the output terminal and the inverting terminal (1) of the operational amplifier 71, and the resistor R 2 is the input resistance of the sound S received from the audio codec 6.
  • the output of the operational amplifier 71 is provided to the speaker 9 through the line 73.
  • variable resistor R 3 is connected between the inverting terminal (1) of the operational amplifier 71 and the alarm sound generating circuit 12, and its resistance value is output from the controller 11 input from the DZA converter 72. It is controlled by the gain value G of the warning sound. As described above, the warning sound can be superimposed on the received sound, and the volume of the warning sound can be varied according to the electric field strength.
  • FIG. 3 shows a block diagram of a PHS terminal according to a second embodiment of the present invention. Note that the same parts as those in FIG. In the figure, the controller 11 has a pre-programmed warning sound gain value with respect to the electric field strength, and has the function of adjusting the warning sound gain value according to the electric field strength transferred from the RF controller 10. And output it to the alarm sound generating circuit 13.
  • the warning sound generation circuit 13 with volume control function has a function of not only generating a predetermined warning sound (beep sound, white noise, etc.) but also adjusting the volume of the generated warning sound. 1 Generates a warning sound whose volume is adjusted according to the gain value G of the warning sound transmitted from 1.
  • the warning sound output by the warning sound generating circuit 13 with volume control function is superimposed on the received sound at the audio interface X—7 (see FIG. 4). As described above, the warning sound can be superimposed on the received sound, and the volume of the warning sound can be varied in accordance with the Xiaokai intensity.
  • the volume of the warning sound is zero, and the lower the electric field strength, the higher the volume of the warning sound.
  • the compressive strength is less than or equal to the predetermined value, it is close to the predetermined value. That is, when the communication state is not good but communication is possible without any problem, the volume of the warning sound is not so large.
  • W indicates the electric field strength range where communication is not possible.
  • the user is moving to a place suitable for communication, or conversely, to a place not suitable for communication, depending on how the volume of the warning sound changes. Since it is possible to quickly and accurately determine whether or not the user is moving, it is possible to move from a place with poor communication to a place with good communication in a shorter time.
  • the present invention is useful for a mobile communication device such as a mobile phone and a PHS terminal that can transmit and receive sound information while moving, and in particular, the field strength of a received radio wave may decrease with movement. It is suitable for mobile communication equipment with a certainty.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)
  • Transceivers (AREA)

Abstract

A mobile communication device, such as a PHS terminal, etc., having a function which emits sounds through a loudspeaker by superposing an alarming sound upon the sounds of received signals when the field intensity of received radio waves is lower than a prescribed value. The communication device is provided with an alarming sound generating circuit which generates alarming sound data, a detecting means which detects the intensity of received radio waves, and a changing means which changes the volume of the alarming sound in accordance with the intensity of received radio waves. Therefore, the direction in which the intensity of received radio waves becomes stronger is known.

Description

明細書  Specification
移動体通信機 技術分野  Mobile communication technology
本発明は、 携帯電話機、 P H S (パーソナル · ハンディ ホン · システム） 端末 など、 移動しながらの音情報の送受が可能な移動体通信機に関するものである。 背景技術  The present invention relates to a mobile communication device capable of transmitting and receiving sound information while moving, such as a mobile phone and a PHS (Personal Handy Phone System) terminal. Background art
P H S端末では受信電波が弱く なると、 警告音を発するようになつている。 即 ち、 受信電波の電界強度を検出する手段を有しており、 この検出強度が所定の値 以下であると、 警告音を発生させる警告音発生回路を駆動し、 オーディ オイ ンタ ーフ -ースにて受信音データに一定音量である警告音データを重畳している。 そ の結果、 スピーカからは受信音に混ざって警告音が放音される。 第 7図は電界強 度 Eと警告音の音 i Aとの関係を示している。  The PHS terminal emits a warning sound when the received radio wave becomes weak. That is, a means for detecting the electric field strength of the received radio wave is provided, and when the detected strength is equal to or less than a predetermined value, a warning sound generating circuit for generating a warning sound is driven, and an audio interface is provided. The warning sound data having a constant volume is superimposed on the received sound data in the receiving sound data. As a result, the speaker emits a warning sound in addition to the received sound. Fig. 7 shows the relationship between the electric field strength E and the alarm sound iA.
したがって、 使用者はスピーカから出力される受信音に警告音が混ざっている と、 現在通信を行っている場所は受信罨波の電界強度が所定値以下であり弱い、 つまり通信に適していないと認識することができるので、 警告音がなく なる方向 へ移動して良好な通信を行うことができる。  Therefore, if the warning sound is mixed with the received sound output from the speaker, the user is weak in the electric field strength of the receiving compressive wave below the predetermined value, that is, it is not suitable for communication. Since it can be recognized, it is possible to move in a direction in which there is no warning sound and perform good communication.
しかしながら、 移動しながら通信を行っていて受信音に警告音が混ざり始めた 場合は、 移動を止める、 あるいは逆方向へ戻るなどすれば良いが、 通信開始直後 からすでに受信音に警告音が混ざっている場合は、 使用者は場所を変えよう とす る力 そのためには受信音の品質のみを頼りにせねばならないので、 場合によつ てはより一層電界強度が弱い方向へ移動する可能性があり、 なかなか良好な通信 を行うことができないという問題がある。  However, if the warning sound starts to be mixed with the received sound while communicating while moving, the movement may be stopped or returned in the opposite direction.However, the warning sound is already mixed with the received sound immediately after the communication starts. If this is the case, the user will have to rely on the quality of the received sound only for the power to change places, and in some cases may move in a direction where the field strength is weaker. However, there is a problem that it is difficult to perform good communication.
また、 鷺界強度 E oが所定値以下であると必ず受信音に警告音が重畳されるので、 電界強度が所定値以下であっても通信状態は良好ではないが、 問超なく 通信を行 う ことができる場合には、 通信の妨げとなってしまう という問題がある。 第 7図 において、 Wは通信不可の電界強度範囲を示している。  Also, if the heron strength E o is less than a predetermined value, a warning sound is always superimposed on the received sound, so even if the electric field strength is less than the predetermined value, the communication state is not good, but communication is performed without question. If this is possible, there is a problem that communication will be hindered. In FIG. 7, W indicates the electric field strength range where communication is not possible.
そこで、 本発明は、 使用者がより短時間で通信不良の場所から通信良好な場所 へ移動することができる移動体通信機を提供することを目的とする。 Therefore, the present invention provides a method that allows a user to quickly switch from a place with poor communication to a place with good communication. It is an object of the present invention to provide a mobile communication device that can move to a mobile communication device.
また、 通信不良な場所であることを使用者に知らせるに際して、 通信の妨げ度 合を低減した移動体通信機を提供することを他の目的とする。 発明の開示  It is another object of the present invention to provide a mobile communication device in which the degree of communication interruption is reduced when notifying a user of a place with poor communication. Disclosure of the invention
本発明の移動体通信摟では、 受信 ¾波の電界強度が所定値以下であると受信音 に所定の警告音を重畳する移動体通信機において、 前記電界強度に応じて前記警 告音の音量を可変させることを特徴としている。  In the mobile communication device according to the present invention, in a mobile communication device that superimposes a predetermined warning sound on a received sound when the electric field intensity of a received wave is equal to or lower than a predetermined value, the volume of the alarm sound according to the electric field intensity Is made variable.
このような特徴の移動体通信機において、 例えば、 霄界強度が弱くなればなる ほど警告音の音！:を大きくするようにしておけば、 使用者は受信音に含まれる警 告音の音 fiが大きくなると通信に適さない方向へ移動していると認識することが でき、 逆に受信音に含まれる警告音の音量が小さくなると通信に適した方向へ移 動していると認識することができるというように、 警告音の音 fiの変化具合によ つてどの方向へ移動すれば良好な通信を行うことができるかを素早く、 正確に判 断することができる。  In a mobile communication device with such characteristics, for example, the lower the Xiaokai intensity, the more the warning sound! If the value of: is increased, the user can recognize that the alarm sound included in the received sound is moving in a direction unsuitable for communication when the sound fi increases, and conversely, the If the sound volume of the warning sound decreases, it can be recognized that the communication is moving in a direction suitable for communication. You can quickly and accurately determine what you can do.
また、 同じく電界強度が弱くなればなるほど警告音の音量を大きく し、 さらに 罨界強度が所定値であるときは警告音の音量がゼロであるようにしておけば、 電 界強度が所定値以下であっても所定値の近傍である、 つまり通信状態は良好では ないが問題なく通信できる場合の警告音の音量はそれほど大きくないものとなる。 図面の簡単な説明  Similarly, if the electric field strength is weakened, the volume of the warning sound is increased, and if the compressing strength is a predetermined value, the volume of the warning sound is set to zero, so that the electric field strength is equal to or less than the predetermined value. However, the volume of the warning sound when the communication is close to the predetermined value, that is, the communication state is not good but communication can be performed without any problem, is not so large. BRIEF DESCRIPTION OF THE FIGURES
第 1図は 1は本発明の第 1実施形態である移動通信機 （P ii S端末） のブロッ ク図であり、  FIG. 1 is a block diagram of a mobile communication device (PiiS terminal) according to a first embodiment of the present invention.
第 2図は第 1図におけるオーディオインターフェース 7と警告音発生回路 1 2 の接続部の詳細を示す図、  FIG. 2 is a diagram showing details of a connection portion between the audio interface 7 and the alarm sound generation circuit 12 in FIG. 1,
第 3図は本発明の第 2実施形態である移動通信機 （P H S端末） のブロック図。 第 4図は第 3図におけるオーディオインターフ —ス 7と音声調整機能付き警 告音発生回路の接統部の詳細を示す図。  FIG. 3 is a block diagram of a mobile communication device (PHS terminal) according to a second embodiment of the present invention. FIG. 4 is a diagram showing details of an audio interface 7 in FIG. 3 and a connection portion of a warning sound generation circuit with a sound adjustment function.
第 5図は本発明における電界強度と警告音の音量との関係の一例を示す図。 第 6図は本発明における電界強度と警告音の音量との関係の別の一例を示す図。 第 7図は従来技術における電界強度と警告音の音量との関係を示す図。 発明を実施するための最良の形態 FIG. 5 is a diagram showing an example of the relationship between the electric field strength and the volume of the warning sound in the present invention. FIG. 6 is a diagram showing another example of the relationship between the electric field strength and the volume of the warning sound in the present invention. FIG. 7 is a diagram showing the relationship between the electric field strength and the volume of the warning sound in the prior art. BEST MODE FOR CARRYING OUT THE INVENTION
以下に本発明の実施形態を図面を参照しながら説明する。 第 1 図は本発明の一 実施形態である移動体通信機のプロ ッ ク図であって、 移動体通信機と して P H S 端末を用いている。 同図において、 1 はアンテナ、 2は R F部、 3は変調部、 4 は復調部、 5は T D M A · T D D処理部、 6は音声コーデッ ク、 7はオーディ オ イ ンタ一フヱース、 8はマイ ク、 9はスピーカ、 1 0は11 ?制御部、 1 1 は各部 の動作を制御するコン トローラ、 1 2は警告音発生回路である。 前記コン トロー ラ 1 1 は例えばマイ クロコンピュータで構成される。  An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a mobile communication device according to an embodiment of the present invention, in which a PHS terminal is used as the mobile communication device. In the figure, 1 is an antenna, 2 is an RF section, 3 is a modulation section, 4 is a demodulation section, 5 is a TDMA / TDD processing section, 6 is an audio codec, 7 is an audio interface, and 8 is a microphone. Reference numeral 9 denotes a speaker, 10 denotes an 11 control unit, 11 denotes a controller for controlling the operation of each unit, and 12 denotes a warning sound generation circuit. The controller 11 is composed of, for example, a microcomputer.
送信時は、 まず、 マイ ク 8より入力された音声 （送信音） をオーディ オイ ンタ —フェース 7を介して音声コーデッ ク 6へ転送する。 次に、 アナログ信号である 音声を音声コーデッ ク 6でデジタル化し、 そのデジタル信号に T D M A · T D D 処理部 5で多重化処理を施し、 変調部 3へ転送する。 そして、 変調部 3では転送 されてきた信号に基づいて搬送波 （電波） を変化させ、 それを R F部 2で増幅し た後、 アンテナ 1 より送信する。  At the time of transmission, first, the voice (transmitted sound) input from the microphone 8 is transferred to the voice codec 6 via the audio interface-face 7. Next, the audio, which is an analog signal, is digitized by an audio codec 6, the digital signal is subjected to multiplexing processing by a TDMA / TDD processing unit 5, and transferred to a modulation unit 3. Then, the modulation unit 3 changes the carrier (radio wave) based on the transferred signal, amplifies it in the RF unit 2, and transmits it from the antenna 1.
受信時は、 まず、 アンテナ 1 より受信した搬送波を R F部 2を介して復調部 4 へ転送する。 次に、 復調部 4では転送されてきた搬送波からもとの音声信号を検 出し、 その音声信号に施されている多重化処理を T D M A * T D D処理部 5で解 く。 そして、 その音声信号はデジタル信号であるので、 音声コーデッ ク 6でアナ ログ化し、 オーディ オイ ンターフェース 7 を介してスピーカ 9から音声 （受信音） と して出力する。  At the time of reception, first, the carrier received from antenna 1 is transferred to demodulation section 4 via RF section 2. Next, the demodulation unit 4 detects the original audio signal from the transferred carrier wave, and the multiplex processing applied to the audio signal is decomposed by the TDMA * TDD processing unit 5. Since the audio signal is a digital signal, the audio signal is converted into an analog signal by the audio codec 6, and is output from the speaker 9 via the audio interface 7 as audio (received sound).
ここで、 R F部 2は受信電波の電界強度を検出する機能を有しており、 検出し た電界強度を電圧値と して R F制御部 1 0へ転送する。 R F制御部 1 0は R F部 2の制御をするとともに、 R F部 2から転送されてく る電界強度 （電圧値） をデ ジタルコー ドに変換し、 コン トローラ 1 1 へ転送する。 コン トローラ 1 1 は電界 強度に対する警告音のゲイ ン値が予めプログラムされており、 R F制御部 1 0か ら転送されてく る電界強度に応じた警告音のゲイ ン値をオーディ オイ ンターフエ ース 7に出力する。 Here, the RF unit 2 has a function of detecting the electric field intensity of the received radio wave, and transfers the detected electric field intensity to the RF control unit 10 as a voltage value. The RF control unit 10 controls the RF unit 2 and converts the electric field strength (voltage value) transferred from the RF unit 2 into a digital code and transfers the digital code to the controller 11. The controller 11 has a pre-programmed warning sound gain value for the electric field strength, and outputs the audio sound gain value corresponding to the electric field strength transferred from the RF control unit 10 to an audio interface. Output to source 7.
オーディ オイ ンターフェース 7 と警告音発生回路 1 2 との接铳状態の詳細を第 2図に示す。 同図において、 オーディ オイ ンタ一フェース 7はその受信側に演算 増幅器 7 1、 抵抗 R l、 R 2、 可変抵抗 R 3、 D Z A (ディ ジタル Zアナログ） 変換器 7 2を有している。 抵抗 R 1 は演算増幅器 7 1 の出力端子と反転端子 （一） との間に接铳された帰還抵抗であり、 抵抗 R 2は音声コーデッ ク 6からの受信音 Sの入力抵抗である。 演算増幅器 7 1 の出力は線路 7 3を通してスピーカ 9へ与 えられる。  FIG. 2 shows the details of the connection state between the audio interface 7 and the alarm sound generating circuit 12. In FIG. 1, the audio interface 7 has an operational amplifier 71, resistors R1, R2, a variable resistor R3, and a DZA (digital Z analog) converter 72 on the receiving side. The resistor R 1 is a feedback resistor connected between the output terminal and the inverting terminal (1) of the operational amplifier 71, and the resistor R 2 is the input resistance of the sound S received from the audio codec 6. The output of the operational amplifier 71 is provided to the speaker 9 through the line 73.
可変抵抗 R 3は演算増幅器 7 1 の反転端子 （一） と警告音発生回路 1 2 との間 に接続されており、 その抵抗値が D Z A変換器 7 2から入力されるコン トローラ 1 1 が出力する警告音のゲイ ン値 Gにより制御される。 以上のようにして、 受信 音に警告音を重畳するとともに、 その警告音の音量を電界強度に応じて可変させ ることができる。  The variable resistor R 3 is connected between the inverting terminal (1) of the operational amplifier 71 and the alarm sound generating circuit 12, and its resistance value is output from the controller 11 input from the DZA converter 72. It is controlled by the gain value G of the warning sound. As described above, the warning sound can be superimposed on the received sound, and the volume of the warning sound can be varied according to the electric field strength.
次に、 第 3図に本発明の第 2実施形態である P H S端末のブロ ッ ク図を示す。 尚、 第 1図と同じ部分には同一の符号を付して説明を省略する。 同図において、 コン トローラ 1 1 は電界強度に対する警告音のゲイ ン値が予めプログラムされて おり、 R F制御部 1 0から転送されてく る電界強度に応じて警告音のゲイ ン値を 音量調整機能付き警告音発生回路 1 3に出力する。  Next, FIG. 3 shows a block diagram of a PHS terminal according to a second embodiment of the present invention. Note that the same parts as those in FIG. In the figure, the controller 11 has a pre-programmed warning sound gain value with respect to the electric field strength, and has the function of adjusting the warning sound gain value according to the electric field strength transferred from the RF controller 10. And output it to the alarm sound generating circuit 13.
音量調整機能付き警告音発生回路 1 3は所定の警告音 （ビープ音ゃホワイ トノ ィズなど） を発生するだけでなく、 発生する警告音の音量を調整する機能を有し ており、 コン トローラ 1 1 から転送されてく る警告音のゲイ ン値 Gにしたがって 音量を調整した警告音を発生する。 音量調整機能付き警告音発生回路 1 3が出力 する警告音はオーディ オイ ンタ一フ X—ス 7において受信音に重畳される （第 4 図参照） 。 以上のようにして、 受信音に警告音を重畳するとともに、 その警告音 の音量を霄界強度に応じて可変させることができる。  The warning sound generation circuit 13 with volume control function has a function of not only generating a predetermined warning sound (beep sound, white noise, etc.) but also adjusting the volume of the generated warning sound. 1 Generates a warning sound whose volume is adjusted according to the gain value G of the warning sound transmitted from 1. The warning sound output by the warning sound generating circuit 13 with volume control function is superimposed on the received sound at the audio interface X—7 (see FIG. 4). As described above, the warning sound can be superimposed on the received sound, and the volume of the warning sound can be varied in accordance with the Xiaokai intensity.
ここで、 電界強度に応じて警告音の音量をどのように可変させるかについて例 を挙げておく。 まず、 第 5図に示すように、 電界強度が所定値 E oであるときは従 来の警告音の音; ftレベルよりも低いレベルの所定音量の警告音を発生するととも に、 電界強度が弱く なればなるほど警告音の音量を大きくするという ことが考え られる。 このようにすれば、 使用者は受信音に含まれる警告音の音量が大きく な ると通信に適さない方向へ移動していると認識することができ、 逆に受信音に含 まれる警告音の音量が小さ く なると通信に適した方向へ移動していると認識する こ とができる。 Here, an example will be given on how to change the volume of the warning sound according to the electric field strength. First, as shown in FIG. 5, when the electric field strength is the predetermined value Eo, the conventional warning sound is generated; a warning sound of a predetermined volume lower than the ft level is generated, and the electric field strength is reduced. It is thought that the lower the volume, the louder the warning sound Can be In this way, if the volume of the warning sound included in the received sound increases, the user can recognize that the user is moving in a direction unsuitable for communication, and conversely, the warning sound included in the received sound. When the volume of is decreased, it can be recognized that it is moving in a direction suitable for communication.
さらに、 第 6図に示すように、 電界強度が所定値 E o以上であるときは警告音の 音量がゼロで、 電界強度が弱く なればなるほど警告音の音量を大きくするように しておけば、 罨界強度が所定値以下であっても所定値の近傍である、 つまり通信 状態は良好ではないが問題なく通信できる場合の警告音の音量はそれほど大き く ないものとなる。 第 5図、 第 6図において、 Wは通信不可の電界強度範囲を示し ている。  Furthermore, as shown in FIG. 6, when the electric field strength is equal to or higher than the predetermined value Eo, the volume of the warning sound is zero, and the lower the electric field strength, the higher the volume of the warning sound. However, even if the compressive strength is less than or equal to the predetermined value, it is close to the predetermined value. That is, when the communication state is not good but communication is possible without any problem, the volume of the warning sound is not so large. In FIGS. 5 and 6, W indicates the electric field strength range where communication is not possible.
以上説明したように、 本発明の移動体通信機によれば、 使用者は警告音の音量 の変化具合によって、 通信に適した場所へ移動しているのか、 あるいは逆に通信 に適さない場所へ移動しているのかを素早く、 正確に判断することができるので、 よ り短時間で通信不良の場所から通信良好な場所へ移動することができる。  As described above, according to the mobile communication device of the present invention, the user is moving to a place suitable for communication, or conversely, to a place not suitable for communication, depending on how the volume of the warning sound changes. Since it is possible to quickly and accurately determine whether or not the user is moving, it is possible to move from a place with poor communication to a place with good communication in a shorter time.
また、 電界強度が所定値以下であっても所定値の近傍である、 つまり通信状態は 良好ではないが問題なく通信できる場合の警告音の音量はそれほど大きく ないも のとなるので、 通信不良な場所であることを使用者に知らせるに際して、 通信の 妨げ度合を低下させることができる。 産業上の利用可能性 In addition, even if the electric field strength is below the predetermined value, it is close to the predetermined value.In other words, the communication state is not good, but the volume of the warning sound when communication is possible without any problem is not so large. When notifying the user of the location, the degree of communication interruption can be reduced. Industrial applicability
以上のように本発明は、 携帯電話機、 P H S端末など、 移動しながらの音情報 の送受が可能な移動体通信機に有用であり、 特に受信電波の鼋界強度が移動に伴 つて低下する可能性のある移動体通信機に適している。  INDUSTRIAL APPLICABILITY As described above, the present invention is useful for a mobile communication device such as a mobile phone and a PHS terminal that can transmit and receive sound information while moving, and in particular, the field strength of a received radio wave may decrease with movement. It is suitable for mobile communication equipment with a certainty.

Claims

請求の範囲 The scope of the claims
1 . 受信電波の電界強度が所定値以下であると受信音に所定の警告音を重畳す る移動体通信機において、 前記電界強度に応じて前記警告音の音量を可変させる こ とを特徴とする移動体通信機。  1. In a mobile communication device that superimposes a predetermined warning sound on a received sound when the electric field strength of a received radio wave is equal to or lower than a predetermined value, the volume of the warning sound is varied according to the electric field strength. Mobile communicator.
2. 前記電界強度が弱く なればなるほど前記警告音の音量を大きくすることを 特徴とする請求項 1 に記載の移動体通信機。 2. The mobile communication device according to claim 1, wherein the volume of the warning sound is increased as the electric field intensity decreases.
3. 前記電界強度が所定値以上であるときは前記警告音の音量がゼロであるこ とを特徴とする請求項 2に記載の移動体通信機。 3. The mobile communication device according to claim 2, wherein the volume of the warning sound is zero when the electric field strength is equal to or higher than a predetermined value.
4 . 以下のものから成る移動体通信機 4. Mobile communications equipment comprising:
電波を受信する受信手段、  Receiving means for receiving radio waves,
警告音を発生する警告音発生手段、  Warning sound generating means for generating a warning sound,
受信した電波の強度を検出する検出手段、  Detecting means for detecting the intensity of the received radio wave,
受信電波の強度に応じて警告音の音量を可変する可変手段。  Variable means for varying the volume of the warning sound according to the intensity of the received radio wave.
5 . 警告音発生手段は警告音信号発生回路と、 警告音信号によって動作するス ピー力とを備えていることを特徴とする請求項 4 に記載の移動体通信機。 5. The mobile communication device according to claim 4, wherein the warning sound generating means includes a warning sound signal generating circuit and a speed power operated by the warning sound signal.
6. 前記可変手段は警告音信号が伝送される経路に設けられた可変抵抗手段を 有しており、 この可変抵抗手段の抵抗値を検出手段の出力に基いて変えることを 特徴とする請求項 5に記載の移動体通信機。 6. The variable means has variable resistance means provided on a path through which a warning signal is transmitted, and changes the resistance value of the variable resistance means based on the output of the detection means. 5. The mobile communication device according to 5.
7. 前記移動体通信機がパーソナル · ハンディ ホン · システム端末であること を特徴とする請求項 1 又は請求項 4 に記載の移動体通信機。 7. The mobile communication device according to claim 1, wherein the mobile communication device is a personal handy phone system terminal.
PCT/JP1997/000981 1996-03-28 1997-03-24 Mobile communication device WO1997036385A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8/74295 1996-03-28
JP8074295A JPH09266454A (en) 1996-03-28 1996-03-28 Mobile communication equipment

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WO1997036385A1 true WO1997036385A1 (en) 1997-10-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1137971A2 (en) * 1998-11-16 2001-10-04 Quartex, a division of Primex Radio-controlled clock movement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003051863A (en) * 2001-08-06 2003-02-21 Yamaha Corp Mobile communication terminal and server device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04119147U (en) * 1991-04-03 1992-10-26 シヤープ株式会社 Out-of-range alarm sound generator for cordless telephones
JPH0677891A (en) * 1992-08-25 1994-03-18 Matsushita Electric Ind Co Ltd Digital radio telephone set

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04119147U (en) * 1991-04-03 1992-10-26 シヤープ株式会社 Out-of-range alarm sound generator for cordless telephones
JPH0677891A (en) * 1992-08-25 1994-03-18 Matsushita Electric Ind Co Ltd Digital radio telephone set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1137971A2 (en) * 1998-11-16 2001-10-04 Quartex, a division of Primex Radio-controlled clock movement
EP1137971A4 (en) * 1998-11-16 2004-11-03 Quartex Division Of Primex Inc Radio-controlled clock movement

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