JP2000174897A - Telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a telephone set where adjustment in matching with own environment is attained by taking the opposite party into consideration also into account for always attaining pleasant speech. SOLUTION: A memory 23 stores equalizer control data, noise canceler control data and volume control data for each of opposite party telephone numbers. The data corresponding to a destination telephone number are read from the memory 23 at the receipt of an incoming call or in the case of making dialing, a digital equalizer 15, a noise canceler 16 and a variable resistor 17 are controlled to adjust quality of a speech voice for each destination telephone number.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone set such as a portable telephone set, and more particularly, to a method for adjusting the quality of a call voice.

[0002]

2. Description of the Related Art It is desirable to be able to communicate with a clear and easy-to-listen voice during a telephone call. Therefore, in a conventional telephone, Japanese Patent No. 2522211, Japanese Utility Model Publication 7-9
473, JP-A-9-46154 and JP-A-8
-320154, JP-A-7-231276, JP-A-6-30090, JP-A-5-9439
No. 1, JP-A-2-150148, JP-A-1-150148
As disclosed in Japanese Patent Application Laid-Open No. 152823, the frequency characteristics (sound quality), sound volume, and noise removal state are adjusted by, for example, measuring the environment of a place where a caller is present with an external microphone or the like. In addition, actual opening Hei 7-42236
As disclosed in Japanese Unexamined Patent Application Publication No. H11-163, the sound quality is adjusted by controlling a filter using a set value stored in a memory.

[0003]

However, when considering the current telephone system, there are various problems concerning voice quality as follows. (1) Various operators and telephone systems are mixed due to the expansion of services, and each has a unique sound quality. (2) Even if one system is specified, the sound quality differs depending on various terminal manufacturers. (3) A telephone is personally owned, and a specific person often appears at a specific telephone number, and it is necessary to adjust according to the person. (4) The voice quality is divided according to the age, gender, preference, and the like of the user. Considering these matters, to improve the voice quality of the telephone, it is not only necessary to make corrections in the environment where the user is located as in the above-mentioned conventional example, but also to adjust to the user in consideration of these factors possessed by the other party. Adjustments need to be made.

[0004] The present invention has been made in view of the above points,
It is an object of the present invention to provide a telephone which can adjust the voice quality for each of the other party's telephones so that the adjustment can be made in consideration of the factors of the other party and can always make a comfortable conversation.

[0005]

A telephone according to the present invention stores voice quality adjustment data in a memory for each telephone number of a partner,
At the time of outgoing and incoming calls, the voice quality adjustment data corresponding to the other party's telephone number is read from the memory and the voice quality is adjusted for each other party's telephone number.

The sound quality to be adjusted is at least one of sound quality, noise removal state, and volume. The sound quality, the noise elimination state, and the volume are independently adjusted by different sound quality adjustment data. The adjustment of the audio quality is performed on the received audio, and the transmitted audio can be added thereto. The quality of the received voice and the transmitted voice are independently adjusted with different voice quality adjustment data. The voice quality adjustment data is input and changed by operating the key input unit, and when changed, the changed data is stored in the memory. The memory is a memory for a calling number history, a called number history, and a memory dial.

Specifically, the telephone according to the present invention includes a sound quality adjusting circuit for adjusting the sound quality of the call voice, a noise removing circuit for removing noise from the call voice, a volume adjusting circuit for adjusting the volume of the call voice, A memory for storing voice quality adjustment data for each of the other party's telephone numbers, and, at the time of outgoing and incoming calls, reading out the voice quality adjustment data corresponding to the other party's phone number from the memory, and for each of the other party's phone numbers, the sound quality adjustment circuit; And a control circuit for controlling the noise removal circuit and the volume adjustment circuit.

[0008] In addition to the above circuit, a key input unit for inputting and changing voice quality adjustment data can be provided. The sound quality adjustment circuit includes a plurality of filters having different pass bands of the audio signal, one of which is selected by the audio quality adjustment data.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the telephone according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a circuit diagram showing a mobile phone as an embodiment of the present invention.
In this mobile phone, a radio wave received by the antenna 11 is supplied to the RF circuit 12, and frequency selection and the like are performed. The signal output from the RF circuit 12 is supplied to a modulation / demodulation circuit in a DSP (Digital Signal Processor) 13 and a modem 14, and is converted into a digital signal. The digitally converted signal sequentially passes through a digital equalizer 15 as a sound quality adjustment circuit, a noise canceller 16 as a noise removal circuit, and a volume 17 as a volume adjustment circuit.
Then, the digital signal output from the volume 17 is converted into an analog signal by the D / A converter 18 and converted into a sound by the speaker 19. On the other hand, the sound collected by the microphone 20 is
After being converted into a digital signal by the A / D converter 21, the signal is supplied to the modem and modem 14 via the volume 17, the noise canceller 16, and the digital equalizer 15, and is modulated. Then, the modulated wave is transmitted as a radio wave by the antenna 11 via the RF circuit 12.

The digital equalizer 15, the noise canceller 16, and the volume 17 are controlled by an arithmetic processing unit 22 as a control circuit, and control data is stored in a memory 23 such as a RAM.

As shown in FIG. 2, the memory 23 has a memory function as a transmission number history, a reception number history, and a memory dial.

The memory 23 stores, as a transmission number history, a transmission number, a destination name (when registered in a memory dial), and a transmission time for each transmission. In addition, for each outgoing call (for each outgoing number), the digital equalizer 15,
Equalizer control data for controlling the noise canceller 16 and the volume 17, noise canceller control data,
Volume control data, that is, audio quality adjustment data (hereinafter simply referred to as audio data) is stored.

The memory 23 stores, as the incoming call number history, an incoming call number, a destination name (if registered in a memory dial), and an incoming time for each incoming call. In addition, equalizer control data, noise canceler control data, and volume control data for controlling the digital equalizer 15, the noise canceller 16, and the volume 17 are stored for each incoming call (for each incoming number), that is, voice data.

The memory 23 has a memory dial,
The registration number, name, reading, and telephone number are stored for each registration destination. In addition, equalizer control data for controlling the digital equalizer 15, the noise canceller 16 and the volume 17, the noise canceler control data, and the volume control data, that is, voice data, are stored for each registration destination (for each registered telephone number).

The memory 23 stores standard voice data not related to telephone numbers.

The equalizer control data of the digital equalizer 15 shown in FIG.
3, equalizer control data (sound quality adjustment data) is stored so as to obtain the desired frequency characteristics of the audio signal (including the case where the band is the same but the characteristics are different). For example, the equalizer control data A , B, C, and D are stored in the memory 23, and by selecting the sound quality adjustment data, the pass band of the sound signal is different from that of FIG.
Various filters as shown in (a), (b), (c), and (d) can be configured. Therefore, it goes without saying that various frequency characteristics can be obtained by selecting arbitrary audio quality adjustment data.

The arithmetic processing unit 22 shown in FIG. 1 is a control circuit for controlling the entire telephone. Although not shown, the digital equalizer 15, the noise canceller 16, the volume 17
Connected to other parts. Further, the arithmetic processing unit 22
Is connected to a ROM 24 for storing programs, a key input unit 25 for inputting various information, and an LCD driver 26. An LCD display 27 is connected to the output of the LCD driver 26. The voice data is input to the memory 23 by the key input unit 25 and is changed.

In the portable telephone constructed as described above, at the time of outgoing and incoming calls, voice data corresponding to the telephone number of the other party is read from the memory 23, and the voice quality (sound quality, noise removal state, Volume) can be adjusted. This will be described in detail below with reference to FIG.

At the time of outgoing or incoming call at step S1, the current telephone number is stored in the history or memory dial of the memory 23 based on the telephone number of the telephone number entered by the user or the telephone number notified by the caller ID. It is determined whether it is stored (step S2). If it is stored, the voice data (equalizer control data, noise canceller control data, volume control data) corresponding to the telephone number is read from the memory 23 (step S3), and the digital data is stored in the digital equalizer 15 using the voice data.
The noise canceller 16 and the volume 17 are controlled (step S4), and the voice quality (sound quality, noise removal state,
Volume) is determined. On the other hand, if the telephone number is not stored in the memory 23, the standard audio data is read from the memory 23 (step S5), and the digital equalizer 15, the noise canceller 16, and the volume 17 are controlled by the standard audio data (step S4). , The voice quality is determined.

Thereafter, the communication starts (step S6). Then, when the user himself or herself feels the need to change the voice quality (voice data) during a call, or when the other party requests a change in voice quality (step S7),
The user operates the key input unit 25 to set new audio data (step S8), and controls the digital equalizer 15, the noise canceller 16, and the volume 17 with the new audio data to change the audio quality. Of course, when there is no need to change the audio quality, the initial audio data and the initial audio quality remain.

Thereafter, at the end of the call in step S9, if the current call is based on a call, the current voice data is stored together with the call number, name and call time in the call number history of the memory 23 (step S10). ). If the current call is based on an incoming call, the current voice data is stored in the incoming call number history of the memory 23 together with the incoming call number, name, and incoming time (step S10).

Further, the current destination telephone number is stored in the memory 2.
3 is searched for (step S11), and if registered, the stored voice data corresponding to the telephone number is overwritten with the current voice data (step S12), and the process ends. (Step S1
3). On the other hand, if the current destination telephone number is not registered in the memory dial of the memory 23, the overwriting is skipped and the process ends (step S13).

Thereafter, similarly, at the time of outgoing call or incoming call,
If the destination telephone number is in the history of the memory 23 or during memory dialing, the voice data stored corresponding to the telephone number can be read out and adjusted to a desired voice quality for each destination telephone number.

According to the above-mentioned portable telephone, since the desired voice quality can be adjusted for each telephone number of the other party (the other party's telephone), factors of the other party, such as the voice quality of the other party, the characteristics of the other party's telephone, the line, etc. Taking into account the sound quality, etc., that the user has, it is possible to make adjustments that suit the user, and always have a comfortable call. In addition, by storing the voice data in the history of the memory 23 or in the memory dial in association with the telephone number of the other party, it is possible to minimize troublesome settings each time and always make a comfortable call.

In the above embodiment, the quality of both the received voice and the transmitted voice is adjusted by the digital equalizer 15, the noise canceller 16 and the volume 17, but the quality of at least only the received voice may be adjusted. In the case where the quality of both the received voice and the transmitted voice is adjusted, both may be adjusted in the same manner, or may be independently controlled with different voice data. Further, as is clear from the above description, the digital equalizer 15, the noise canceller 16
And the volume 17 are independently controlled by different audio data.

In the above embodiment, the case where the present invention is applied to a portable telephone has been described. However, the present invention can be applied to other telephones such as a PHS telephone and a general telephone.

[0027]

As described above, according to the telephone of the present invention,
Adjustments can be made in accordance with one's own, taking into account the factors of the other party, so that comfortable calls can always be made. In addition, it is possible to always perform a comfortable call while minimizing the trouble of operation.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing an embodiment of a telephone according to the present invention.

FIG. 2 is an exemplary view showing contents stored in a memory of the mobile phone shown in FIG. 1;

FIG. 3 is a characteristic diagram showing characteristics of a digital equalizer used in the mobile phone of FIG. 1;

FIG. 4 is a flowchart for explaining the operation of the mobile phone of FIG. 1;

[Explanation of symbols]

 Reference Signs List 15 digital equalizer 16 noise canceller 17 volume 22 arithmetic processing unit 23 memory 25 key input unit

Claims (12)

[Claims] 1. A voice quality adjustment data is stored in a memory for each telephone number of a partner, and the voice quality adjustment data corresponding to the telephone number of the partner is read out from the memory at the time of outgoing and incoming calls, and is read out for each telephone number of the partner. A telephone for adjusting voice quality. 2. The telephone according to claim 1, wherein the adjusted voice quality is at least one of a sound quality, a noise removal state, and a volume. 3. The telephone according to claim 2, wherein the sound quality, the noise elimination state, and the volume are independently adjusted by different audio quality adjustment data. 4. The telephone according to claim 1, wherein the adjustment of the voice quality is performed on the received voice. 5. The telephone according to claim 4, wherein the adjustment of the voice quality is performed on the transmitted voice in addition to the received voice. 6. The telephone according to claim 5, wherein the received voice and the transmitted voice are independently quality-adjusted with different voice quality adjustment data. 7. The telephone according to claim 1, wherein the voice quality adjustment data is input and changed by operating a key input unit. 8. The telephone according to claim 7, wherein when the voice quality adjustment data is changed, the changed data is stored in the memory. 9. The telephone according to claim 1, wherein the memory is a memory for a calling number history, a called number history, and a memory dial. 10. A sound quality adjustment circuit for adjusting the sound quality of a call voice, a noise removal circuit for removing noise from the call voice, a volume adjustment circuit for adjusting the volume of the call voice, and a sound quality adjustment for each telephone number of the other party. A memory for storing data; and reading out the voice quality adjustment data corresponding to the telephone number of the other party from the memory at the time of outgoing and incoming calls, and controlling the sound quality adjusting circuit, the noise removing circuit, and the volume adjusting circuit for each of the other party's telephone numbers. The telephone according to claim 1, further comprising a control circuit that performs the control. 11. The sound quality adjustment circuit according to claim 10, wherein the sound quality adjustment circuit includes a plurality of filters having different frequency characteristics of the audio signal, and one of the filters is selected by the audio quality adjustment data. Phone. 12. The telephone according to claim 10, further comprising a key input unit for changing voice quality adjustment data.