JP2002281115A - Wireless terminal, manner mode control system, and control method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio terminal which can reduce transmitting power, a manner mode control system, and its control method. SOLUTION: A microphone 114 collects sound information around the radio terminal 100 the information of which contains specified sounds outputted from a sound source 200. A specified sound detecting circuit 111 isolates the audio signal, corresponding to the specified sound from the sound information and detects the audio signal. When the detected audio signal is at least a prescribed level, the detecting circuit 111 sends the audio signal to a transmission circuit 112, as a control signal which controls the audio signal. On the basis of the control signal, the transmission circuit 112 controls the transmission power.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless terminal, a manner mode control system, and a control method thereof, and more particularly to a manner mode in which transmission power is reduced from a call state by detecting voice information. TECHNICAL FIELD The present invention relates to a wireless terminal that controls the transition of a manner, a manner mode control system, and a control method thereof.

[0002]

2. Description of the Related Art In a portable telephone terminal and a manner mode control method thereof disclosed in Japanese Patent No. 3012629 (conventional example 1), an identification code is assigned to each base station, and the terminal looks at the identification code in the received signal. Manner mode is automatically set. The prior art 1 describes a method in which a manner mode is entered when entering a certain base station area, and the manner mode is released when exiting another base station area.

[0003]

In hospitals and public transportation, in order to reduce adverse effects on pacemakers and the like and inconvenience to surrounding users, users are requested to voluntarily refrain from emitting radio waves and talking on mobile phones. I'm calling. However, in fact, users with poor etiquette are constantly on the horizon, and their effectiveness has not been improved. The manner mode is prepared for the wireless terminal itself, but at present it is necessary for the user to set each mode,
It is hard to say that this is being used effectively.

[0004] The present invention has been made in view of the above problems, and instead of using an identification code by radio waves from a base station for manner mode control, a specific sound source is prepared indoors.
A function of detecting a specific sound from the sound source in the wireless terminal and automatically changing to a silent mode when the detection level is equal to or higher than a certain level, and an area for each base station in which the silent mode is controlled in Conventional Example 1. It is an object of the present invention to provide a wireless terminal, a manner mode control system, and a method of controlling the wireless terminal that can reduce transmission power even in a smaller area (for example, in a vehicle).

[0005]

In order to achieve the above object, an invention according to claim 1 is a wireless terminal capable of shifting to a silent mode in which transmission power is reduced from a call state. A wireless terminal, a voice information detecting means for detecting voice information around the terminal, a voice information averaging means for averaging the level of voice information detected by the voice information detecting means, and a voice information averaging means. And a manner mode control means for controlling a transition to a manner mode based on the level of the converted audio information.

According to a second aspect of the present invention, in the wireless terminal according to the first aspect, the manner mode shifting means shifts to the manner mode when the averaged voice information is detected at a predetermined level or more. It is characterized by the following.

According to a third aspect of the present invention, in the portable terminal according to the first or second aspect, the voice information detecting means includes one of a specific music, a human voice, and ambient noise.
One or a combination is detected.

According to a fourth aspect of the present invention, there is provided a wireless terminal capable of shifting to a manner mode in which transmission power is reduced from a talking state, a sound source for outputting a specific sound,
A wireless mode, wherein the wireless terminal comprises: a voice information detecting means for detecting voice information around the own terminal; and a specification for detecting a specific sound included in the voice information detected by the voice information detecting means. Sound detection means, based on the specific sound detected by the specific sound detection means, a specific sound manner mode control means for controlling the transition to the manner mode,
It is characterized by having.

According to a fifth aspect of the present invention, in the manner mode control system according to the fourth aspect, the specific sound detecting means detects an audio signal having a predetermined frequency as the specific sound. .

According to the sixth aspect of the present invention, in the manner mode control system according to the fourth or fifth aspect, the specific sound detecting means detects an audio signal matching a predetermined acoustic signal pattern as the specific sound. It is characterized by the following.

According to a seventh aspect of the present invention, in the manner mode control method according to any one of the fourth to sixth aspects, the specific sound manner mode control means converts the specific sound detection means into audio information. When the included specific sound is detected at a predetermined level or more, the mode shifts to a silent mode.

According to an eighth aspect of the present invention, in the manner mode control system according to any one of the fourth to seventh aspects, the sound source includes an ultrasonic wave, specific music, a human voice, and noise. And outputting one or a combination thereof.

According to a ninth aspect of the present invention, in the manner mode control system according to the eighth aspect, the sound source modulates the ultrasonic waves in a predetermined pattern.

According to a tenth aspect of the present invention, in the manner mode control system according to any one of the fourth to ninth aspects, the sound source converts audio data recorded on the recording medium into a specific sound. And output.

According to an eleventh aspect of the present invention, in the manner mode control system according to any one of the fourth to tenth aspects, the sound source may be installed indoors of a predetermined building or of a predetermined transportation system. It is characterized by being installed indoors.

According to a twelfth aspect of the present invention, there is provided a manner mode in which the shift to the manner mode is controlled using a wireless terminal capable of shifting to the manner mode in which the transmission power is reduced from the talking state. A control method, comprising: a voice information detecting step of detecting voice information around a wireless terminal; a voice information averaging step of averaging a level of voice information detected by the voice information detecting step; and a voice information averaging step. A manner mode control step of controlling a transition to a manner mode based on the level of the averaged audio information.

According to a thirteenth aspect of the present invention, in the manner mode control method according to the twelfth aspect, the manner mode transition step is to switch to the manner mode when the averaged audio information is detected at a predetermined level or more. It is characterized by shifting.

According to a fourteenth aspect of the present invention, in the manner mode control method according to the twelfth or thirteenth aspect, the voice information detecting step includes one of a specific music, a human voice, and ambient noise. Or a combination is detected.

The invention according to claim 15 uses a radio terminal capable of shifting to a silent mode in which transmission power is reduced from a call state and a sound source for outputting a specific sound, A manner mode control method for controlling transition to a manner mode, comprising: a sound information detecting step of detecting sound information around a wireless terminal; and a specific sound included in the sound information detected by the sound information detecting step. And a specific sound manner mode control step of controlling a transition to a manner mode based on the specific sound detected in the specific sound detection step.

According to a sixteenth aspect of the present invention, in the manner mode control method according to the fifteenth aspect, the specific sound detecting step detects an audio signal having a predetermined frequency as the specific sound. .

According to a seventeenth aspect of the present invention, in the manner mode control method according to the fifteenth or sixteenth aspect, the specific sound detecting step detects a sound signal matching a predetermined acoustic signal pattern as the specific sound. It is characterized by the following.

According to the invention of claim 18, in the manner mode control method according to any one of claims 15 to 17, the specific sound manner mode control step includes converting the specific sound detection step into audio information. When the included specific sound is detected at a predetermined level or more, the mode shifts to a silent mode.

According to the nineteenth aspect of the present invention, in the manner mode control method according to any one of the fifteenth to eighteenth aspects, the sound source may include an ultrasonic wave, specific music, a human voice, and noise. And outputting one or a combination thereof.

According to a twentieth aspect of the present invention, in the manner mode control method according to the nineteenth aspect, the sound source modulates the ultrasonic wave in a predetermined pattern.

According to a twenty-first aspect of the present invention, in the manner mode control method according to any one of the fifteenth to twentieth aspects, the sound source converts the audio data recorded on the recording medium into a specific sound. And output.

According to a twenty-second aspect of the present invention, in the manner mode control method according to any one of the fifteenth to twenty-first aspects, the sound source may be provided indoors of a predetermined building or in a predetermined transportation mode. It is characterized by being installed indoors.

[0027]

FIG. 1 is a diagram showing the configuration of an embodiment of the present invention. Hereinafter, the configuration in the present embodiment will be described with reference to FIG.

The configuration of the present embodiment comprises a wireless terminal 100,
And a sound source 200. The wireless terminal 100 has a wireless interface unit 110. Wireless interface unit 1
10 is a specific sound detection circuit 111, a transmission circuit 112,
Receiving circuit 113, microphone 114, speaker 1
15 and an antenna 116. The sound source 200
A sound data storage unit 201, an audio signal reproducing device 202,
And a speaker 203.

In FIG. 1, the radio terminal 100 is not shown except for the radio interface unit 110, but may be considered to have other parts such as a PDA as well as a normal radio terminal. Hereinafter, the wireless terminal 1 in the present embodiment
The configuration and operation of 00 will be described.

Voice information is input to the microphone 114. The speaker 115 outputs audio information. Antenna 116 receives radio waves from other terminals. The receiving circuit 113 converts radio waves input through the antenna 116 into audio data and outputs the audio data through the speaker 115. The specific sound detection circuit 111 separates and detects predetermined audio information from the audio information input via the microphone 114, and transmits a control signal for controlling a wireless output to the transmission circuit 112.
Send to The transmission circuit 112 controls transmission power based on the input control signal.

The sound source 200 outputs a specific sound. Sound source 2
The specific sound output from 00 is, together with other surrounding sounds,
The signal is input to the microphone 114. Microphone 114
Is separated from other surrounding sounds and detected by the specific sound detection circuit 111 as an audio signal.
The audio signal is also input to the transmission circuit 112.

The specific sound detection circuit 111 includes the microphone 1
It is determined whether or not the specific sound from the sound source 200 is included in the audio information input to the speaker 14 at a certain level or more. If a specific sound having a certain level or more is detected, the specific sound is output. The detection circuit 111 generates a control signal. The generated control signal is input to the transmission circuit 112.

When detecting the input control signal, the transmission circuit 112 controls the transmission power of the radio wave. Wireless terminal 1
00 stops transmission of radio waves or shifts to a manner mode in which transmission power is significantly reduced by the transmission power control described above.

As a specific sound to be detected, ambient noise may be used. When using the ambient noise level for control,
The specific sound detection circuit 111 measures the power of the audio signal from the microphone 114, detects the averaged signal as necessary, as the surrounding noise level, and, based on the audio signal based on the detected noise level, A control signal for controlling transmission power (manner mode control signal) is generated. Since it is only necessary to measure the power of the signal from the microphone 114, it can be configured with a simple circuit, and can be operated by noise such as a bus engine sound without the need to prepare a sound source.
Only the modification on the wireless terminal 100 side can cope.

Further, the audio signal from the microphone 114 is filtered for a specific sound to extract only the specific sound, the power thereof is measured, and if necessary, averaged to obtain a signal level of the specific sound. It may be a mode control signal.

As the filter, a frequency filter that passes only a specific frequency signal may be used, or a matched filter that obtains a correlation with a specific acoustic signal pattern may be used. By increasing the accuracy of the filter, it is possible to easily detect only a specific sound.

Further, a microphone is provided as a standard in a normal wireless terminal, and transmission power control is a standard function depending on the communication system. Therefore, only by adding a simple specific sound detection circuit, the microphone of the present embodiment is used. Manner mode control becomes possible. The complicated setting such as the manner mode control by the conventional ID setting is unnecessary.

By controlling the transmission power of the radio wave, the transmission of the radio wave can be suppressed only near the sound source 200 that outputs the specific sound, and the communication by the wireless terminal can be restricted.
Fine manner mode control can be performed in a limited space compared to a conventional method using a base station. For example, only by preparing a simple sound source, it is possible to suppress communication limited to a specific indoor space such as a bus, a train, or a concert hall.

The configuration and operation of the sound source according to this embodiment will be described below with reference to FIG. As a sound source, an existing broadcasting facility is used at the installation location, or a sound data storage unit 201 in which sound data is stored in an audio signal reproduction unit 202 (CD, cassette deck, etc.) having an oscillation function and a speaker 203 are connected. May be. If the existing broadcasting equipment can be used, there is no need to modify the equipment such as buildings and vehicles at all, and only the specific sound data needs to be prepared.

The specific sound output from the sound source 200 may be an ultrasonic wave, specific music, human voice, ambient noise, other voice information, or a combination of the above.

When an ultrasonic wave is used as the specific sound, a sound obtained by further modulating a specific pattern may be used if necessary. Ultrasound is inaudible to humans, and can be ignored for its effect on the human body.

When a human voice is used as the specific sound, existing in-vehicle and indoor broadcasting facilities can be used as a sound source.

When the surrounding noise is used as the specific sound, since the noise is simply controlled at the noise level, it is effective to suppress communication in a noisy place such as in a train or crowded place.

The sound source 200 for outputting the specific sound may be installed in a building (hospital, concert hall, etc.) or indoors in transportation (car, bus, train, aircraft, ship, etc.). These places are places where manner mode control is required, and in the present embodiment, control limited to these areas is possible. In addition, even when installed outdoors, communication around the sound source 200 can be suppressed.

The above-described embodiment is an example of a preferred embodiment of the present invention, and the embodiment of the present invention is not limited to this, and may be variously modified without departing from the gist of the present invention. It can be implemented.

[0046]

As described above, a sound source for outputting a specific sound is installed in a place where communication should be refrained,
Detect a specific sound output from a sound source from surrounding sounds, analyze the detected specific sound, judge whether the specific sound is included at a predetermined level or more, and stop emission of radio waves when it is higher than a predetermined level By greatly reducing the transmission power, it is possible to suppress the transmission of radio waves only near the sound source that outputs a specific sound, and to limit the communication by the wireless terminal, which is more limited than the method using the conventional base station. Fine manner mode control in a closed space becomes possible. By the manner mode control as described above, it is possible to suppress communication limited to a specific indoor space such as a bus or a train, a concert hall, etc. by simply preparing a simple sound source. Also, there is no need to use radio waves for controlling the manner mode.

Also, a circuit for detecting a specific sound is added to the wireless terminal, a signal from the microphone is also input to a detection circuit in addition to the transmission circuit, and a control signal indicating whether or not the signal is detected is generated by the detection circuit. Adds a simple specific sound detection circuit by controlling the operation of the whole or a part of the transmission circuit with the transmission power control function using the control signal and having a function to stop or reduce the emission of radio waves when a specific sound is detected Only by doing so, the manner mode control of the present invention becomes possible. Further, complicated settings such as the manner mode control by the conventional ID setting are not required.

[0048] Further, as a specific sound, an ultrasonic wave which cannot be recognized by a person is used, and if necessary, a sound obtained by modulating a specific pattern is used, thereby ignoring the effect on the human body. It becomes possible.

Further, by using specific music or human voice as the specific sound, the existing in-vehicle and indoor broadcasting equipment can be used as it is, so that the introduction at low cost is possible.

Further, since the noise is controlled simply by using the surrounding noise as the specific sound, communication in a noisy place such as a train or crowded place can be suppressed without preparing a sound source. .

In addition, as a sound source, an indoor place in a building (hospital, concert hall, etc.) or a transportation facility (automobile, bus, train, aircraft, ship, etc.) where manner mode control is required is designated. As a result, existing broadcasting equipment can be used as a sound source. Further, by designating indoors, manner mode control can be performed only in an area limited by a shield, so that finer control can be performed.

As a sound source for outputting a specific sound, an existing broadcasting facility is used at the installation location, or a new speaker is prepared, and an audio signal reproducing device (CD, (Cassette deck, etc.) connected to generate a desired specific sound. By using existing broadcasting equipment, the manner mode control is easily performed only by preparing the specific sound data. This makes it possible to eliminate the need for any modification of facilities such as buildings and vehicles. Furthermore, even when existing equipment cannot be used, only a simple sonic oscillator is prepared, so the cost is not so high.

Also, the power of the signal from the microphone is measured, and if necessary, the average is obtained as the ambient noise level, and this is used as a control signal in the manner mode. Since it can be configured by a circuit and can be operated by ambient noise without preparing a sound source, the manner mode can be easily controlled only by modifying the terminal side.

Further, the signal from the microphone is filtered for a specific sound to extract only the specific sound, the power of the specific sound is measured, and if necessary, averaged to obtain the signal level of the specific sound. By using the control signal, the manner mode control can be performed with high accuracy. Further, by increasing the accuracy of the filter, it is possible to control the shift to the more accurate manner mode.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 wireless terminal 110 wireless interface 111 specific sound detection circuit 112 transmission circuit 113 reception circuit 114 microphone 115, 203 speaker 116 antenna 200 sound source 201 sound data storage unit 202 acoustic signal reproduction unit

Claims (22)

[Claims] 1. A wireless terminal capable of transitioning to a manner mode in which transmission power is reduced from a call state, comprising: voice information detecting means for detecting voice information around the terminal; Voice information averaging means for averaging the level of the voice information detected by the detection means, and a manner for controlling the transition to the manner mode based on the level of the voice information averaged by the voice information averaging means. A wireless terminal, comprising: mode control means. 2. The wireless terminal according to claim 1, wherein said manner mode shifting means shifts to said manner mode when said averaged voice information is detected at a predetermined level or higher. 3. The apparatus according to claim 1, wherein said voice information detecting means detects one or a combination of specific music, human voice, and ambient noise.
Or the mobile terminal according to 2. 4. A wireless terminal capable of shifting to a manner mode in which transmission power is reduced from a call state,
A sound source that outputs a specific sound, wherein the wireless terminal includes: a sound information detection unit that detects sound information around the terminal; and a sound information detected by the sound information detection unit. Specific sound detecting means for detecting the specific sound included, based on the specific sound detected by the specific sound detecting means,
A manner mode control means for controlling a transition to the manner mode; 5. The manner mode control system according to claim 4, wherein said specific sound detecting means detects an audio signal having a predetermined frequency as said specific sound. 6. The manner mode control system according to claim 4, wherein said specific sound detecting means detects an audio signal matching a predetermined acoustic signal pattern as said specific sound. 7. The specific sound manner mode control means shifts to the silent mode when the specific sound included in the audio information is detected by the specific sound detection means at a predetermined level or more. The manner mode control method according to any one of claims 4 to 6. 8. The sound source may be one of ultrasound, specific music, human voice, and noise.
The manner mode control system according to claim 4, wherein one or a combination is output. 9. The manner mode control system according to claim 8, wherein the sound source modulates the ultrasonic wave in a predetermined pattern. 10. The manner mode control system according to claim 4, wherein the sound source converts sound data recorded on a recording medium into the specific sound and outputs the sound. 11. The manner mode control system according to claim 4, wherein the sound source is installed inside a predetermined building or inside a predetermined transportation facility. 12. A manner mode control method for controlling a shift to the manner mode using a wireless terminal capable of shifting to a manner mode in which transmission power is reduced from a call state, the manner mode control method comprising: A voice information detecting step of detecting voice information around the wireless terminal; a voice information averaging step of averaging the level of voice information detected by the voice information detecting step; A manner mode control step of controlling a transition to the manner mode based on the level of audio information. 13. The manner mode control method according to claim 12, wherein, in the manner mode transition step, when the averaged audio information is detected at a predetermined level or more, the manner mode is shifted to the manner mode. 14. The method according to claim 1, wherein the voice information detecting step detects one or a combination of specific music, human voice, and ambient noise.
14. The manner mode control method according to 2 or 13. 15. Controlling the transition to the manner mode using a wireless terminal capable of transitioning to a manner mode in which transmission power is reduced from a call state and a sound source outputting a specific sound. An audio information detecting step of detecting audio information around the wireless terminal, and a specific sound detection detecting the specific sound included in the audio information detected by the audio information detecting step. And a specific sound detected in the specific sound detection step.
A specific sound manner mode control step of controlling a transition to the manner mode, the manner mode control method comprising: 16. The manner mode control method according to claim 15, wherein the specific sound detecting step detects an audio signal having a predetermined frequency as the specific sound. 17. The method according to claim 15, wherein the specific sound detecting step detects an audio signal matching a predetermined acoustic signal pattern as the specific sound.
6. The manner mode control method according to 6. 18. The specific sound manner mode control step, wherein, when the specific sound included in the audio information is detected at a predetermined level or more in the specific sound detection step, the mode shifts to the silent mode. Claims 15 to 1
8. The manner mode control method according to any one of items 7 to 7. 19. The sound source may be one of ultrasound, specific music, human voice, and noise.
19. The manner mode control method according to claim 15, wherein one or a combination is output. 20. The manner mode control method according to claim 19, wherein the sound source modulates the ultrasonic wave in a predetermined pattern. 21. The manner mode control method according to claim 15, wherein the sound source converts audio data recorded on a recording medium into the specific sound and outputs the specific sound. 22. The manner mode control method according to claim 15, wherein the sound source is installed inside a predetermined building or inside a predetermined transportation facility.