WO1997036385A1 - Dispositif mobile de telecommunications - Google Patents

Dispositif mobile de telecommunications Download PDF

Info

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
Authority
WO
WIPO (PCT)
Prior art keywords
warning sound
communication device
mobile communication
volume
electric field
Prior art date
Application number
PCT/JP1997/000981
Other languages
English (en)
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/fr

Links

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.

Landscapes

  • 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

Dispositif mobile de télécommunications, tel qu'un terminal de PHS, possédant une fonction d'émission de son par l'intermédiaire d'un haut-parleur par superposition d'un son d'alarme sur les sons de signaux reçus, quand l'intensité de champ des ondes radio reçues est inférieure à une valeur prédéterminée. Ce dispositif de télécommunications est pourvu d'un circuit de génération de sons d'alarme générant des données de sons d'alarme, d'un moyen de détection détectant l'intensité des ondes radio reçues, ainsi que d'un moyen de modification modifiant le volume du son d'alarme en fonction de l'intensité des ondes radio reçues. Ceci permet de connaître le sens dans lequel l'intensité des ondes radio reçues se renforce.
PCT/JP1997/000981 1996-03-28 1997-03-24 Dispositif mobile de telecommunications WO1997036385A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8074295A JPH09266454A (ja) 1996-03-28 1996-03-28 移動体通信機
JP8/74295 1996-03-28

Publications (1)

Publication Number Publication Date
WO1997036385A1 true WO1997036385A1 (fr) 1997-10-02

Family

ID=13543016

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1997/000981 WO1997036385A1 (fr) 1996-03-28 1997-03-24 Dispositif mobile de telecommunications

Country Status (2)

Country Link
JP (1) JPH09266454A (fr)
WO (1) WO1997036385A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1137971A2 (fr) * 1998-11-16 2001-10-04 Quartex, a division of Primex Mouvement d'horlogerie radio-commande

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003051863A (ja) * 2001-08-06 2003-02-21 Yamaha Corp 携帯通信端末およびサーバ装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04119147U (ja) * 1991-04-03 1992-10-26 シヤープ株式会社 コードレス電話機における子機の圏外警告音発生装置
JPH0677891A (ja) * 1992-08-25 1994-03-18 Matsushita Electric Ind Co Ltd ディジタル無線電話装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04119147U (ja) * 1991-04-03 1992-10-26 シヤープ株式会社 コードレス電話機における子機の圏外警告音発生装置
JPH0677891A (ja) * 1992-08-25 1994-03-18 Matsushita Electric Ind Co Ltd ディジタル無線電話装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1137971A2 (fr) * 1998-11-16 2001-10-04 Quartex, a division of Primex Mouvement d'horlogerie radio-commande
EP1137971A4 (fr) * 1998-11-16 2004-11-03 Quartex Division Of Primex Inc Mouvement d'horlogerie radio-commande

Also Published As

Publication number Publication date
JPH09266454A (ja) 1997-10-07

Similar Documents

Publication Publication Date Title
KR910008739B1 (ko) 무선전화장치
WO2003007474A2 (fr) Dispositif de reglage adaptatif du volume d'un avertissement sonore
KR0184993B1 (ko) 이동 무선 유닛 및 이를 자동적으로 이득 제어하는 방법
JPH10304030A (ja) 携帯電話装置
JP3312735B2 (ja) 受信機のための聴覚報知器回路
KR20030070130A (ko) 무선 통신 시스템에서 적응형 등화를 위한 시스템 및 방법
WO1997036385A1 (fr) Dispositif mobile de telecommunications
JP2001016057A (ja) 音響装置
JPH07111680A (ja) 携帯無線電話装置
JP2010130301A (ja) 無線通信機及び無線通信機の制御方法
JP4027758B2 (ja) 無線機
JPH0492518A (ja) 送受信機
KR960027517A (ko) 무선 전화기의 유아 감시장치
JP2551536B2 (ja) 自動車電話装置
JP2000151315A (ja) 無線通信機の自動音量設定方式
JPH03114339A (ja) コードレス電話機
KR100369647B1 (ko) 핸즈프리 기능 구현을 위한 보코더 및 코덱 이득 제어 방법
JP2923954B2 (ja) シンプレックス無線通信システム
JP5585415B2 (ja) オーディオトランスミッタおよび無線オーディオシステム
JP2974427B2 (ja) 音声通信システムとその音声通信装置
KR200276557Y1 (ko) 외부 소음 감지에 따른 전자 음향기기의 음량 자동 조절장치
JP2986285B2 (ja) コードレス電話機
JPH06252796A (ja) コードレス電話機
JPH0321142A (ja) 無線電話装置
JPH04362838A (ja) 無線伝送装置

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase