JP2001036604A - Telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To identify an incoming tone independently of an environment of a telephone set and to prevent the incoming call tone from giving trouble to surrounding persons. SOLUTION: Upon receipt of an incoming call, a control section 15 analyzes property of a surrounding noise picked up by a microphone 18 and selects a optimum parameter corresponding to the surrounding noise in response to the property of the surrounding noise among parameters corresponding to the surrounding noise distributed and stored in a storage means 13. The control section 15 controls tone quality of an incoming tone generated from a tone source section 16 to be identified from the surrounding noise according to the selected parameter corresponding to the surrounding noise. Thus, a user can identify the incoming tone independently of the surrounding noise. Soft tone quality can be obtained from the incoming tone when the surrounding noise is small.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone device suitable for use in a mobile telephone, a portable telephone, or the like.

[0002]

2. Description of the Related Art PDC (Personal D) which is known as an analog cellular system or a digital cellular system.
mobile phone systems such as the digital cellular telecommunication system (igital Cellular telecommunication system) and simplified mobile phone systems (PHS: Pe)
In the rsonal Handyphone System, when an incoming call arrives at the telephone device carried by the user, a ring tone is sounded to notify the user of the incoming call. Conventionally, the ring tone is a sound within a certain narrow frequency band, so that the sound is harsh. In order to solve this, recently, a predetermined melody has been emitted as a ring tone for notifying a user of an incoming call. The ring tone composed of the melody is prepared in advance in a portable device or can be arbitrarily created by a user. Further, music data of a ring tone emitted at the time of an incoming call is also distributed, and a user can output desired music data of the delivered music data so that a desired melody can be emitted at the time of an incoming call. Can be selected and set.

[0003]

However, since it is generally assumed that a portable telephone device moves with the user, the environment in which the portable telephone device is used is always used in an environment suitable for use. Not necessarily. For example, a problem arises in that the ring tone is buried in the ambient noise and becomes difficult to hear depending on the ambient noise in the environment in which it is used. In addition, when there is almost no ambient noise in the environment in which the device is used, there is a possibility that the ringtone may become noise to the surroundings.

Accordingly, it is an object of the present invention to provide a telephone device that can identify a ring tone regardless of the environment in which it is used and that prevents the ring tone from disturbing the surroundings.

[0005]

In order to achieve the above object, a telephone device of the present invention stores at least musical sound data for generating a ring tone and an ambient noise correspondence parameter distributed together with the musical sound data. And a sound source unit that generates a ring tone by selecting and playing back the tone data stored in the storage unit when an incoming call is received, and analyzing characteristics of ambient noise. An optimal ambient noise response parameter is selected from the ambient noise response parameters stored in the storage means in accordance with the nature of the ambient noise, and an incoming call generated from the sound source unit is selected based on the selected ambient noise response parameter. A control unit that controls the sound quality of the sound so as to be distinguishable from the ambient noise. Further, in the telephone device of the present invention, at least one parameter among attack, delay, sustain, and release / decay of the musical tone characteristic may be controlled by the ambient noise corresponding parameter.

According to another aspect of the present invention, there is provided a telephone device for storing at least tone data for generating a tone and a parameter corresponding to an ambient noise distributed together with the tone data. A sound source unit capable of selecting and reproducing any of the musical tone data stored in the storage unit; and a characteristic of ambient noise when reproducing any of the musical tone data by the sound source unit. And selecting an optimum ambient noise response parameter from the ambient noise response parameters stored in the storage means in accordance with the nature of the ambient noise, and using the selected ambient noise response parameter, the sound source unit And a control unit for controlling the tone quality of the musical tone reproduced by the control unit so as to be distinguishable from the ambient noise.

According to the present invention, the parameters corresponding to the ambient noise distributed together with the musical sound data are stored, and the tone quality of the ring tone emitted when there is an incoming call is determined based on the ambient noise at that time. Is controlled so that it can be identified. The control at this time is such that an optimum parameter is selected from the stored ambient noise-corresponding parameters, and the tone quality of the ringtone is controlled by the selected parameter. This makes it possible to identify the ringtone without being buried in the surrounding noise. Further, in an environment where there is almost no ambient noise, the ring tone is controlled to, for example, a soft sound quality so as not to make noise to the surroundings. In the case where the ambient noise corresponding parameter is distributed, it is not necessary to prepare or calculate the ambient noise corresponding parameter in advance. Further, the distributed music data can be reproduced for appreciation, and when reproducing the music data, the sound quality of the music is adjusted so that the reproduced music can be appreciated even if there is ambient noise. I try to control. In this control, an optimum parameter is selected from the stored ambient noise-corresponding parameters, and the tone quality of the musical tone is controlled by the selected parameter. This makes it possible to appreciate the reproduced musical sound without being buried in the surrounding noise. Further, in an environment where there is almost no ambient noise, the reproduced musical tone is controlled to, for example, soft sound quality so as not to make noise to the surroundings.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram for explaining a first embodiment when a telephone device of the present invention is applied to a portable telephone. In FIG. 1, 1 is a mobile phone, and 2 is a base station that manages each wireless zone. In a cellular system of a mobile phone, a small zone system is generally adopted, and a large number of wireless zones are arranged in a service area. The base station 2 manages each of these wireless zones. When the mobile phone 1 as a mobile station talks with a general telephone, the mobile phone 1 is connected to the exchange via the base station 2 and communicates therewith. Being connected to the general telephone network.

The portable telephone 1 has a retractable antenna 10, which is connected to a transceiver unit 11. The transceiver unit 11 demodulates a signal received by the antenna 10, modulates a signal to be transmitted, and supplies the modulated signal to the antenna 10. In the case of the mobile phone 1 of the digital cellular system, a decoding unit and a coding unit are provided in the transceiver unit 11. The telephone function unit 12 is a block for controlling the mobile phone 1 to function as a telephone when talking with another telephone, and controls the switching unit 19 to connect the microphone 18 to the telephone function unit 12 during a call. Then, a call signal from another telephone is output to the output unit 20 including a speaker or the like. During a call, the transceiver unit 1
A signal is transmitted and received between the telephone function unit 1 and the telephone function unit 12.

[0010] The storage means 13 is a storage means for storing the distributed musical tone data and the data of the parameter corresponding to the ambient noise as described later. The MIDI decoder 14 is a decoder that decodes MIDI-format musical sound data stored in the storage unit 13 and supplies the data to the tone generator 16 as performance data.
Is a control unit for controlling the tone quality of the musical tone generated in the step (1). At this time, the control unit 15 analyzes the ambient noise, reads out the ambient noise corresponding parameter suitable for the ambient noise from the storage unit 13, and uses the ambient noise corresponding parameter to generate the sound source unit 1.
6 is controlled. Note that the sound source unit 16 generates a ring tone when a call arrives at the mobile phone 1. Amplifier 17
Amplifies the ringtone generated by the sound source section 16 and outputs the amplified
0 and sound is emitted.

Next, the operation of the configuration shown in FIG. 1 will be described. When the portable telephone 1 is connected to a server connected to the exchange via a telephone line or the like, a desired database is stored in a database stored in the server. The music data and the data of the parameter corresponding to the ambient noise can be downloaded to the mobile phone 1 via the exchange and the base station 2. At this time, the mobile phone 1 is connected to the base station 2 via a wireless line, and for example, the above-described musical sound data and data of the parameter corresponding to the ambient noise transmitted from the antenna 2 a of the base station 2 are transmitted by the antenna 10. The signal is received and demodulated (decoded) by the transceiver unit 11. At this time, since the mobile phone 1 is set to the communication mode connected to the server, the musical sound data demodulated (decoded) by the transceiver unit 11 and the data of the ambient noise corresponding parameter are stored in the storage unit 13. Downloaded by

When the mobile phone 1 is in a communication mode for talking with another phone, a call signal from another phone transmitted from the antenna 2 a of the base station 2 is received by the antenna 10. The signal is demodulated by the transceiver unit 11. At this time, since the mobile phone 1 is set to the communication mode for talking with another telephone, the call signal demodulated by the transceiver unit 11 is supplied to the telephone function unit 12 and output to the output unit such as a speaker. The sound is emitted as a sound from 20. Further, the sound input through the microphone 18 is transmitted to the switching unit 19.
Is supplied to the telephone function unit 12 by the
1 and transmitted from the antenna 10.
This transmission signal is received by the base station 2 via the antenna 2a, and transmitted to another telephone via an exchange connected to the base station 2, whereby a two-way communication is performed.

When the telephone number of the mobile phone 1 is transmitted in order to call the mobile phone 1 from another telephone, the exchange detects the base station 2 in which the mobile phone 1 is registered, and the detected base station 2 2 that the call has been received by the mobile phone 1. The mobile phone 1 receives this, and emits a ringtone notifying that the user has received a call in the telephone function unit 12. At this time, the ambient noise input from the microphone 18 is input to the control unit 15 via the switching unit 19, and the ambient noise is subjected to a discrete Fourier transform (DFT) by the control unit 15, thereby obtaining the spectrum distribution and the like. The strength is analyzed. Then, from the analysis result, an ambient noise-corresponding parameter that is not buried in the ambient noise is selected and read from the storage unit 13.

On the other hand, the MIDI decoder 14 reads out from the storage means 13 the tone data in the MIDI format which is set in advance as a ring tone, decodes the data, and supplies it to the tone generator 16. The tone generator 16 generates a tone according to the supplied tone data and supplies the tone to the amplifier 17. At this time, the sound quality is controlled by the ambient noise corresponding parameter supplied from the controller 15. Therefore, the tone quality of a tone (hereinafter, referred to as “ring tone melody”) as a ring tone emitted from the output unit 20 via the amplification unit 17 is a tone quality corresponding to ambient noise. Therefore, the incoming melody can be reliably identified by the user without being buried in the ambient noise. Further, when there is almost no ambient noise, the control unit 15 controls the sound quality to be soft or the tempo to be slowed so that the incoming melody does not become noise in the surroundings.

Here, there are various methods of sound quality control performed by the control unit 15, and examples thereof will be described below. In the first example, three parameters are prepared for distributed ambient noise parameters: a low-range noise parameter, a middle-range noise parameter, and a high-range noise parameter. Then, as a result of analyzing the ambient noise, when it is detected that the spectrum of the ambient noise is concentrated in the low frequency range, the control unit 15 selects and reads out the low frequency range noise parameter from the storage unit 13 and reads out the low frequency range noise parameter. The sound source unit 16 is controlled by the noise parameter. Also, as a result of analyzing the ambient noise, if it is detected that the spectrum of the ambient noise is concentrated in the midrange, the control unit 15 selects the midrange noise parameter and reads it from the storage unit 13,
The sound source unit 16 is controlled by the mid-range noise parameter. Further, as a result of analyzing the ambient noise, when it is detected that the spectrum of the ambient noise is concentrated in the high frequency range, the control unit 15 selects the high frequency range noise parameter, reads out the high frequency range noise parameter from the storage unit 13, and selects the high frequency range noise parameter. The sound source unit 16 is controlled by the noise parameter. As a result, the incoming melody can be reliably identified by the user without being buried in the ambient noise. As a result of the analysis of the ambient noise, if the spectrum of the ambient noise is concentrated between the high range and the middle range or between the middle range and the low range, the noise parameter for the high range and the middle range Alternatively, the optimum noise parameter may be obtained by performing linear interpolation or polynomial interpolation between the mid-range noise parameter and the low-range noise parameter.

In the second example, the sound source section 16 is an FM sound source, and FM parameters such as ADSR (attack level, delay time, sustain level, release / decay time) are controlled according to the result of analysis of ambient noise. For example, as a result of analyzing the ambient noise, when the level of the ambient noise is low, the attack quality may be suppressed and the release time may be set longer so that the sound quality is easy to hear. In the third example, the spectrum of the incoming melody is moved according to the result of the analysis of the ambient noise so that the spectrum of the ambient noise does not overlap with the concentrated frequency band. Specifically, the key of the ring tone melody is transposed by about a semitone so that it does not overlap the frequency band where the spectrum of the ambient noise is concentrated. This allows
The incoming melody can be reliably identified by the user without being buried in the ambient noise. As another example, when the ambient noise is large, the melody may be played back so that the tempo of the incoming melody is slowed down (however, the pitch is not changed).

The analysis of the ambient noise may be always performed. However, if the analysis is always performed, the consumption of the battery becomes faster and the standby time is shortened. It is preferable to capture and analyze. The microphone 18 that detects ambient noise at this time
As shown in the figure, it may be used also for transmission,
It may be provided independently. Alternatively, ambient noise may be analyzed from the time of receiving the call until the user goes off-hook, and the sound quality may be controlled momentarily according to the result of the analysis. Further, instead of distributing the ambient noise response parameter via the base station via a wireless line, the ambient noise response parameter may be preinstalled in the mobile phone 1 in advance. Furthermore, a noise parameter creation rule may be found, a noise parameter program based on this rule may be installed in the mobile phone 1, and the noise parameter may be generated by executing the program. Furthermore, a learning element such as a response time of the mobile phone 1 when the noise parameter is changed may be fed back to the server for learning so that the server performs editing so that the noise parameter is optimized. . Furthermore, when a call is received with the telephone number information of the other party added, the incoming melody corresponding to the other party set for each telephone number information is emitted so that the other party can be identified by the incoming melody. Is also good.

In the telephone apparatus according to the first embodiment of the present invention described above, it is also possible to reproduce the music data distributed and stored in the storage means 13 for viewing. In this case, the music data to be reproduced in the portable telephone 1 in the music reproduction mode is selected. At this time, the title of the music data stored in the storage means 13 is displayed and selected on a display unit (not shown). Thereafter, when reproduction is instructed, the tone data read from the storage means 13 is transmitted to the tone generator 16 via the MIDI decoder 14.
To generate a musical tone. The generated musical tone is amplified by the amplifying unit 17 and emitted from the output unit 20.

At this time, depending on the environment where the mobile phone 1 is placed, the reproduced musical sound may be hard to hear and may not be properly viewed. Therefore, the tone quality of the reproduced tone is controlled according to the ambient noise in the same manner as the tone quality of the ring tone is controlled according to the ambient noise. At this time, as a method of sound quality control performed by the control unit 15, the control may be performed in accordance with the above-described first to third examples and other examples. This allows the user to satisfactorily appreciate the reproduced musical sound without being buried in the ambient noise when the reproduced musical sound is appreciated. Further, in a state where there is almost no ambient noise, the control unit 15 performs control such that the reproduced musical tone has a soft sound quality so as not to make noise in the surroundings or a tempo is slowed down.

In some cases, an incoming call may be received on the mobile phone 1 while watching the reproduced musical sound. In this case, the musical sound data of a music different from the reproduced musical sound, the musical sound data determined in advance as a ringing melody, or a specific sound data is received. By supplying data for generating an electronic sound to the sound source unit 16, the user may recognize that an incoming call is received when listening to a ringtone emitted from the output unit 20. Also, since the user is listening to the reproduced music, the vibrator of the mobile phone 1 is vibrated, the fact that the incoming call is received is displayed on the display unit, or the display color of the display unit is changed so that the incoming call is received. The notification may be given to the user. Furthermore, when the ring tone is emitted, the style may be identified as a style different from the musical composition of the reproduced musical tone, or a style similar to the musical composition of the reproduced musical tone may be used so that the user does not feel uncomfortable. It should be noted that the mode may be set so as not to notify the incoming call so that the user does not disturb the listening of the music sound while watching the reproduced music sound of the favorite music name.

In the telephone apparatus according to the first embodiment of the present invention described above, karaoke data is selected as music data to be distributed and downloaded to the storage means 13, and the portable telephone 1
It is also possible to perform karaoke by using. In this case, the user selects the karaoke data of the music title to be reproduced by setting the mobile phone 1 in the karaoke mode. At this time, the title of the karaoke data stored in the storage unit 13 is displayed on a display unit (not shown) so that it can be selected. After that, when a reproduction instruction is given, the karaoke data read from the storage means 13 is supplied to the sound source section 16 via the MIDI decoder 14 to generate a karaoke tone. The generated karaoke tone is amplified by the amplifier 17 and output from the output unit 20. The karaoke data also includes lyrics data, and the lyrics are sequentially displayed on the display unit in synchronization with the karaoke music generated by the sound source unit 16. At this time, the color of the lyrics may be changed according to the progress of the musical sound. Further, the key may be changeable by transposing the music in the karaoke tone generated by the sound source unit 16.

Further, depending on the environment in which the portable telephone 1 is placed at the time of performing karaoke, it may not be possible to perform karaoke satisfactorily because it is difficult to hear the musical sound of karaoke. Therefore, the tone quality of the karaoke music tone is controlled according to the ambient noise in the same manner as the tone quality of the ringtone is controlled according to the ambient noise. At this time, as a method of sound quality control performed by the control unit 15, the control may be performed in accordance with the above-described first to third examples and other examples. Thereby, when performing karaoke, the user can sing along with the karaoke without the music sound of the karaoke being buried in the ambient noise. And
The singing voice is input to the microphone 18, switched to the control unit 15 by the switching unit 19, mixed with the musical sound generated by the sound source unit 16, amplified by the amplifying unit 17, and output to the output unit 2.
The sound is emitted from 0 along with the musical sound. In a state where there is almost no ambient noise, the control unit 15 controls the sound quality of the karaoke and the singing voice to have a soft sound quality so as not to make noise in the surroundings or to slow down the tempo. Further, the sound source 16 may add an echo or an effect to the singing voice.

By the way, when a call arrives at the mobile phone 1 during karaoke, in this case, tone data of music different from the karaoke tone, tone data predetermined as a ring tone melody, or By supplying data for generating a specific electronic sound to the sound source unit 16,
When the user listens to the incoming melody emitted from the output unit 20, the user may be made aware of the incoming call. In addition, since the user is karaoke, the user is notified of the incoming call by vibrating the vibrator provided in the mobile phone 1, displaying that the incoming call is on the display unit, or changing the display color of the display unit. May be performed. Further, when the ring tone is emitted, the style may be distinguished from the style of the karaoke music sound, or the style may be similar to the style of the karaoke music sound so that the user does not feel uncomfortable. It should be noted that a mode in which a call is not notified may be set, and when karaoke with a favorite song name is being performed, the user may concentrate on karaoke.

Next, FIG. 2 is a diagram for explaining a second embodiment in which the telephone device of the present invention is applied to a portable telephone.
Shown in In the configuration shown in FIG. 2, karaoke data is selected as music data to be distributed and downloaded to the storage means 13, so that when performing karaoke using the mobile phone 1, karaoke can be performed in cooperation with other devices. ing. The karaoke data at this time is composed of musical sound data, lyrics data and background video data. The configuration shown in FIG. 2 is the same as the configuration shown in FIG. 1 except that the FM transmitter 3 is added, and a description of parts other than the FM transmitter 3 will be omitted. The FM transmitter 3 FM-modulates the mixed karaoke music sound output from the sound source unit 16 and the singing voice input from the microphone 18 to a car navigation device with a television or a car television which is disposed in the vicinity of the FM modulator. . Further, although not shown, distributed lyrics data and background video data are also supplied to the FM transmitter 3, and the FM transmitter 3 is transmitted as a television signal together with the karaoke music and singing voice.

The television signal transmitted from the FM transmitter 3 is received by a car navigation device or a car television which is arranged in the vicinity, and a background image and lyrics data are displayed on a monitor of the television signal. Will be emitted from When performing karaoke, the user selects the karaoke data of the tune to be reproduced by setting the mobile phone 1 in the karaoke mode. At this time, the title of the karaoke data stored in the storage means 13 is displayed and selected on a display unit (not shown). After that, when a reproduction instruction is given, the karaoke data read from the storage means 13 is supplied to the sound source section 16 via the MIDI decoder 14 to generate a karaoke tone. The generated karaoke tone is amplified by the amplifier 17 and output from the output unit 20. Further, in synchronization with the karaoke music sound generated by the sound source section 16, the lyrics data is sequentially read from the storage means 13 and supplied to the FM transmitter 3. Further, the selected musical sound background video data is read from the storage means 13 and supplied to the FM transmitter 3. As a result, the FM transmitter 3 transmits a television signal including karaoke music, singing voice, lyrics data, and background video data. Note that the receiving device that receives the television signal transmitted from the FM transmitter 3 includes:
The device is not limited to a car navigation device with a TV or a car TV, and may be any device having a function of receiving a TV signal.

In the telephone device of the present invention described above,
When a musical tone particularly preferred by the user is set as the ringing melody, the recognition rate can be made higher than when another musical sound is emitted as the ringing melody. Therefore, when a musical tone particularly preferred by the user is set as the ringing melody, it is possible to identify that a call has been received even if the sound is emitted at a lower volume, and it is possible to reduce the influence on the surroundings. In the telephone device of the present invention, a sound source system of a built-in sound source unit can be an FM sound source system, a waveform memory sound source (PCM sound source) system, a physical model sound source system, and the like. A hardware sound source using a DSP or the like, or a software sound source that executes a sound source program may be used. Music data is MIDI
Although it has been described that data is distributed as data, the present invention is not limited to this, and music data may be distributed in another data format.

[0027]

As described above, according to the present invention, the ambient noise corresponding parameters distributed together with the musical sound data are stored, and the sound quality of the ring tone emitted when an incoming call is received can be determined from the ambient noise at that time. It controls so that the ringtone can be identified. The control at this time is such that an optimum parameter is selected from the stored ambient noise-corresponding parameters, and the tone quality of the ringtone is controlled by the selected parameter. This makes it possible to identify the ringtone without being buried in the surrounding noise. Also,
In an environment where there is almost no ambient noise, the ring tone is controlled to, for example, a soft sound quality so as not to make noise to the surroundings. In the case where the ambient noise corresponding parameter is distributed, it is not necessary to prepare or calculate the ambient noise corresponding parameter in advance. Further, the distributed music data can be reproduced for appreciation, and when reproducing the music data, the sound quality of the music is adjusted so that the reproduced music can be appreciated even if there is ambient noise. I try to control. In this control, an optimum parameter is selected from the stored ambient noise-corresponding parameters, and the tone quality of the musical tone is controlled by the selected parameter. This makes it possible to appreciate the reproduced musical sound without being buried in the surrounding noise. Further, in an environment where there is almost no ambient noise, the reproduced musical tone is controlled to, for example, soft sound quality so as not to make noise to the surroundings.

[Brief description of the drawings]

FIG. 1 is a diagram for describing a first embodiment when a telephone device of the present invention is applied to a mobile phone.

FIG. 2 is a diagram for explaining a second embodiment when the telephone device of the present invention is applied to a mobile phone.

[Explanation of symbols]

1 mobile phone, 2 base station, 2a antenna, 3 transmitter, 10 antenna, 11 transceiver unit, 12
Telephone function unit, 13 storage unit, 14 MIDI decoder, 15 control unit, 16 sound source unit, 17 amplifying unit, 18
Microphone, 19 switching section, 20 output section

Claims (3)

[Claims] 1. A storage means for storing at least tone data for generating a ring tone and an ambient noise response parameter distributed together with the tone data. By selecting and playing back the tone data, the sound source unit that generates the ring tone and the characteristics of the ambient noise are analyzed, and the characteristics of the ambient noise are determined from the ambient noise corresponding parameters stored in the storage unit. Select the optimal ambient noise response parameter according to
A telephone unit comprising: a control unit configured to control a tone quality of a ringtone generated from the sound source unit so as to be distinguishable from the ambient noise based on the selected ambient noise corresponding parameter. 2. The method according to claim 1, wherein
2. The telephone device according to claim 1, wherein at least one parameter among attack, delay, sustain, and release / decay of the tone characteristic is controlled. 3. A storage unit for storing at least tone data for generating a tone and an ambient noise corresponding parameter distributed together with the tone data, and selecting one of the tone data stored in the storage unit. A sound source unit that can reproduce the sound data when any of the musical tone data is reproduced by the sound source unit. From the above, an optimal ambient noise corresponding parameter is selected according to the nature of the ambient noise, and the selected ambient noise corresponding parameter makes it possible to distinguish the sound quality of the musical sound reproduced by the sound source unit from the ambient noise. A telephone device, comprising: a control unit configured to perform control.