JP2002171312A - Portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal capable of improving convenience by providing a tripartite speech with which previous registration is not required, of low tariff. SOLUTION: A voice call processing part 16 of a portable terminal A, to which two lines can be simultaneously connected, is provide with voice synthesizers 22a, 22b and 22c. In this portable terminal, the portable voice synthesizer 22a synthesizes received data B and C and outputs the data to codec part 23 as a received signal, the voice synthesizer 22b synthesizes transmitted data A and the received data C and outputs the data to an encoding/decoding part 11 as a transmitting signal to a portable terminal B, and the voice synthesizer 22c synthesizes the transmitted data A and the received data B and outputs the data to an encoding/decoding part 14 as a transmitting signal to a portable terminal C.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal such as a portable telephone or a portable information terminal, and in particular, realizes a low-cost three-way call without registration work, thereby improving convenience. Related to mobile terminals.

[0001]

2. Description of the Related Art A conventional portable telephone system for realizing a three-way call will be described with reference to FIG. FIG. 4 is a system block diagram of a conventional mobile phone system for realizing a three-party call. As shown in FIG. 4, a conventional mobile phone system performs wireless communication between a mobile terminal 6 such as a mobile phone carried by a user, an information terminal, and a mobile phone mounted on a car, and a mobile terminal 6 in an area. Radio base station 7 to be managed
And a mobile communication switching center 3 for controlling switching of mobile communication by controlling a plurality of wireless base stations 7, a local switching center 4 connected to a public line network, and a voice synthesizer to support simultaneous multi-party calls. And a voice conference service system 5.

Further, the radio base station 7 includes a radio transceiver (TRX) 71 for performing radio communication with the portable terminal 6 and a radio equipment control device (CSC) 72 for performing data conversion and communication control accompanying radio communication. Have.

The mobile communication exchange 3 has a base station controller (BSC) 31 for controlling a plurality of base stations and a mobile communication exchange (MEX) 32 for performing exchange control of mobile communication.
It is composed of

[0004] When making a three-way call in the above-mentioned conventional cellular phone system, all members are registered in advance in the voice conference service system 5 provided on the infrastructure side as the same group. When the password is authenticated by calling the specific number assigned to the group, the other members are called by the audio conference service system, and when connected, the audio conference service system 5 transmits the voice of the members of the same group. By combining and outputting to each portable terminal 6, a multi-party simultaneous call was realized.

Here, the conventional portable terminal 6 and the radio base station 7
The communication with is described with reference to FIG. FIG. 5 is an explanatory diagram showing a communication state between a conventional portable terminal 6 and a wireless base station 7. As shown in FIG. As shown in FIG. 5, the conventional connection between the portable terminal 6 or the portable terminal 6 and the radio base station 7 is a single call (one connection with one frequency) in which only one line can be connected at the same time. I can't do that. Therefore, in order to make a call simultaneously with a plurality of subscribers, the voice conference service system 5 is used as described above.

Next, a configuration of the conventional portable terminal 6 will be described with reference to FIG. FIG. 6 is a configuration block diagram of a conventional mobile terminal 6. As shown in FIG. 6, a conventional mobile terminal 6 includes an antenna 61, a high-frequency unit 62 for transmitting and receiving a high-frequency signal, a modulation / demodulation unit 63 for performing modulation / demodulation, a codec 64 for performing decoding, TV phone processing unit 65 for processing and voice call processing unit 6 for processing voice data
6, an LCD (Liquid Crystal Display) 67 for displaying display data transmitted from the TV phone processing unit 65, a camera 68 for capturing images, and a speaker for outputting a signal from the voice communication processing unit 66 as voice. 69,
And a microphone 70 which takes in sound and converts it into an electric signal.

In the conventional portable terminal 6 having the above-described configuration, the transmission voice input by the user is captured as an analog voice signal by the microphone 70, converted into digital data by the voice call processing unit 66, and decoded by the codec. 64.
The image data captured by the camera 68 is converted by the TV telephone processing unit 65 and transmitted to the codec 64.

[0008] Then, the audio data and the image data encoded by the codec 64 are output to the modem 63.
The modulated high-frequency signal is transmitted from the high-frequency unit 62 via the antenna 61.

On the other hand, the radio signal received by the antenna 61 is converted into a low frequency signal by the high frequency
3 and decoded by the codec 64 to be separated into image data and audio data.

The image data is converted into display data by a TV telephone processing unit 65 and output to an LCD 67, and the audio data is converted into an audio signal by an audio communication processing unit 66, and output from a speaker 69 in synchronization with the image. You. Thus, the operation in the conventional portable terminal 6 is performed.

In recent years, CDMA (Code Division Mu)
2. Description of the Related Art A mobile phone capable of realizing an "ltiple access (code spreading multiple access)" system and capable of "multi-call" capable of simultaneously connecting two lines has been developed.

[0012] As a prior art of a telephone device for realizing multi-party communication, Japanese Patent Application Laid-Open No. Hei 9-2 published October 31, 1997 is disclosed.
No. 84840, “Wireless telephone device and wireless telephone system” (applicant: Sony Corporation, inventor: Takeo Takeo). This prior art includes transmission / reception timing switching means for switching reception timing and transmission timing with respect to reception from a plurality of other wireless telephone devices participating in a call, and reception from a plurality of other wireless telephone devices participating in the call. A plurality of voice decoding means for distinguishing and decoding for each wireless telephone device, a receiving synthesis means for adding and combining outputs of a plurality of voice decoding means participating in a call, and an inverse proportion to the number of wireless telephone devices participating in the call And a coding rate changing means for changing a sampling frequency for coding a transmission signal, thereby providing a wireless telephone device capable of realizing multi-party communication in one slot with a relatively simple circuit configuration. Can be done.

[0013]

However, in the three-way telephone call in the above-mentioned conventional mobile telephone system, the voice conference service charge is added to the normal call fee because the voice conference service system on the infrastructure side is used. However, there was a problem that it became expensive.

Furthermore, in a three-party call using the above-mentioned conventional voice conference service system, all the terminals to be connected must be registered in advance, and there is a problem that the registration work is complicated and inconvenient. .

The present invention has been made in view of the above circumstances, and realizes a low-cost three-party call without prior registration.
An object is to provide a mobile terminal capable of improving convenience.

[0016]

SUMMARY OF THE INVENTION The present invention for solving the above-mentioned problems of the prior art combines a plurality of audio signals received from a plurality of destinations using a receiving line connected thereto and outputs the synthesized signals to a speaker. The mobile terminal transmits the received audio signal to a source other than the transmission source using the transmission line connected thereto, and transmits the audio signal input from the microphone to all the transmission sources using the transmission line. However, it is possible to receive a transmission voice other than the user's own voice on one line, and without using a multi-person simultaneous call service, the registration work is unnecessary, and a multi-person simultaneous call can be easily made at a low cost.

The present invention is also a portable terminal which can be simultaneously connected to a plurality of n lines, and synthesizes a plurality of audio signals received from a plurality of receiving lines to be connected and outputs the synthesized signals to a speaker. A first voice synthesizer, and a voice signal input from a microphone and voices received from all other connection destinations except the corresponding connection destination, which are provided corresponding to each of a plurality of connection destination transmission lines. And a second to (n + 1) -th speech synthesizer for synthesizing the signal and outputting the signal to the corresponding transmission line.
The voice received from the connection destination of the person is synthesized to be the reception voice, and the voice in which the n connection destinations synthesize the transmission voices other than their own by the second to (n + 1) th voice synthesizers is received by one line. The registration work is not required without using the multi-person simultaneous call service on the infrastructure side, and the multi-person simultaneous call of n persons can be easily made at low cost.

The present invention is also directed to a portable terminal which can be connected to two lines at the same time, comprising: a receiving voice signal of a first line;
A first voice synthesizer that synthesizes the received voice signal of the line and outputs the received voice signal as a received voice signal to the speaker; a first voice synthesizer that receives the received voice signal of the first line; and a self-transmitted voice signal input from the microphone. A second voice synthesizer that synthesizes and outputs the transmitted voice signal of the second line, a received voice signal of the second line, and a self-transmitted voice signal, and transmits the transmitted voice signal of the first line. The mobile terminal includes a third voice synthesizer that outputs a speech voice signal. By providing the voice synthesizer in a widely used mobile terminal that can be connected to two lines, it is possible to use a multi-user simultaneous communication service. No registration work, low cost 3
A call between parties can be easily realized.

[0019]

Embodiments of the present invention will be described with reference to the drawings. The portable terminal according to the present invention uses a transmission line to combine audio signals received using a reception line connected from a plurality of connection destinations, output the synthesized audio signals to a speaker, and receive audio signals from the plurality of connection destinations. In addition to transmitting to other sources, the audio signal input from the microphone is transmitted to all the sources using the transmission line. Can be received on a single line, without the use of a multi-party simultaneous call service, no registration work is required, multi-user simultaneous calls can be easily made at low cost, and convenience can be improved. is there.

Next, the portable terminal according to the embodiment of the present invention will be specifically described. Here, a mobile terminal that realizes a three-party call will be described. The mobile terminal according to the embodiment of the present invention has a CDMA (Co
A mobile terminal used in a de Division Multiple Access (DDI) system is equipped with a voice synthesizer.
Connected to the other party at the same time, connected to the second party on the other line, synthesized the received voice of the first line and its own transmitted voice, and output as the transmitted voice of the second line, The received voice of the second line and the own transmitted voice are synthesized and output as the transmitted voice of the first line, and the first and second parties are one line and the other two parties. , And a three-party call can be easily realized at a low cost without using a multi-user simultaneous call service, and the convenience can be improved.

A portable telephone system using the portable terminal (this device) according to the embodiment of the present invention has substantially the same configuration as the conventional portable telephone system shown in FIG. Parts similar to those in the related art will be described using the same reference numerals. However, the voice conference service system 5 is not required when making a three-way call using this apparatus.

First, communication between a portable terminal (this apparatus) and a radio base station according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is an explanatory diagram illustrating a communication state between a mobile terminal and a wireless base station when a three-way call is performed using the mobile terminal according to the embodiment of the present invention. As shown in FIG. 1, a case will be described where a call is made between three persons, a portable terminal A, a portable terminal B, and a portable terminal C. Here, the mobile terminal A
Only the portable terminal 1 according to the embodiment of the present invention is the portable terminal B, and the portable terminal B and the portable terminal C are the same portable terminals 6 as in the related art.

That is, the portable terminal A can be connected to two lines (multi-call) at the same time, while the portable terminals B and C can be connected to only one line at a time (single call).

When making a three-way call, the portable terminal A connects to the portable terminal B via the radio base station 7 on one line, and connects to the portable terminal C, which can be connected to one, on the other line. . Thereby, the mobile terminal A can simultaneously talk with the mobile terminal B and the mobile terminal C.

Further, as a feature of the present apparatus, a portable terminal A
Is to synthesize the received voice received on one line and the own transmitted voice and output it as a transmitted signal on the other line. Thereby, the mobile terminals B and C can receive the voice of another mobile terminal via the mobile terminal A.

Next, the configuration of the portable terminal according to the embodiment of the present invention will be described with reference to FIG. FIG. 2 (a)
FIG. 2 is a block diagram illustrating a configuration of a mobile terminal (the present device) according to an embodiment of the present invention.
FIG. 3 is a block diagram showing the configuration of FIG. As shown in FIG. 2A, the configuration of the mobile terminal 1 according to the embodiment of the present invention is almost the same as the configuration of the conventional mobile terminal 6 shown in FIG. Unit 12 and modem unit 1
3, a codec 14, a TV phone processor 15, a voice call processor 16, an LCD 17, a camera 18, a speaker 19, and a microphone 20. However, the configuration and operation of the voice call processing unit 16 are different from those of the conventional voice call processing unit 66 shown in FIG.

Here, the configuration of the voice call processing unit 16 which is a characteristic part of the present apparatus will be described with reference to FIG. As shown in FIG. 2 (b), the voice call processing unit 16 of the present apparatus includes two reception signal lines and two transmission signal lines in order to enable simultaneous two-line communication. One set of signal lines and transmission signal lines is assigned to one line, and the other set is assigned to the other line. Here, it is assumed that “receive call 1, transmit call 1” is assigned to a call with the portable terminal B, and “receive call 2, transmit call 2” is assigned to a call with the portable terminal C.

The voice call processing section 16 includes a voice synthesis section 21 for performing voice synthesis and a CODEC for performing data conversion.
And a voice synthesizer 21. The voice synthesizer 21 further includes voice synthesizers 22a, 22b, and 22c.

The voice synthesizer 22a synthesizes the received voice data input from the two received signal lines (received 1 and received 2), and outputs CO as the received voice data in the portable terminal A.
This is output to the DEC unit 23. As a result, the received voice of the mobile terminal A output from the speaker 19 is a composite of the received voices of the mobile terminal B and the mobile terminal C.

The voice synthesizer 22b combines the transmitted voice data of the portable terminal A input from the CODEC unit 23 and the received data 2 and outputs the synthesized data as transmitted data 1.
Similarly, the voice synthesizer 22c combines the transmitted voice data of the portable terminal A input from the CODEC unit 23 and the received data 1 and outputs the synthesized data as the transmitted voice 2 data.

That is, the speech synthesizer 21 of the present apparatus
The received voice data from the other party is synthesized and output as the own received voice data to the CODEC unit 23, and the transmitted voice data from the other party and the received voice data from the other party are synthesized to form a single line. The transmission is possible, and the data is output to the codec 14 as voice data to be transmitted to the other party.

Accordingly, it is necessary to register the mobile terminal B and the mobile terminal c, which are the communication partners of the present apparatus (mobile terminal A), without using the voice conference service system and without providing any special mechanism as before. This makes it possible to realize a three-party call easily and at low cost.

Next, an operation in a three-party call using the present apparatus will be described with reference to FIG. FIG. 3 is an explanatory diagram showing a signal flow in a three-party call using the present apparatus. As shown in FIG. 3, a mobile terminal B, a mobile terminal A, and a mobile terminal C perform a three-way call, and the mobile terminal A is the mobile terminal 1 according to the embodiment of the present invention. Further, the mobile terminal B and the mobile terminal C are the same mobile terminal mobile terminal 6 as the conventional one.

As described above, the same portable terminal B as in the prior art is used.
And the mobile terminal C is connected to the mobile terminal A by one line, and the mobile terminal A can be connected to two lines at the same time.
The mobile terminal B is connected via a line, and the mobile terminal C is connected via another line.

First, the reception process of the portable terminal A will be described. The voice input from the microphone 70 of the mobile terminal B or the mobile terminal C is converted into digital data by the CODEC unit of the voice call processing unit 66 and transmitted as transmission B data or transmission C data.

Then, as described with reference to FIG.
The received signal from the portable terminal B (received B data) and the received signal from the portable terminal C (received C data) input to the voice synthesis unit 21 of the voice communication processing unit 16 of the mobile terminal A are branched into two. , And one of them is input to the voice synthesizer 22a and synthesized, and CODEC as reception B and C data.
It is output to the unit 23. Then, the audio signal is converted into an audio signal by the CODEC unit 23, and the audio from the mobile terminals B and C is output from the speaker 19 of the mobile terminal A.

Next, the transmitting process of the portable terminal A will be described. The transmission A data input from the microphone 20 of the mobile terminal A and converted into digital data is branched into two and input to the voice synthesizer 22b and the voice synthesizer 22c.

The other of the received B data that has been branched into two is input to the speech synthesizer 22c, and is synthesized with the transmitted A data that has been branched into two, and is transmitted as transmitted A and B data. It is output to the codec 14. Transmission A and B data are
This is a transmission signal transmitted to the mobile terminal C.

Similarly, the other of the received C data branched into two is input to the voice synthesizer 22b and is synthesized with the transmitted A data that has been branched into two, and the transmitted A and C data Is output to the codec 14. The transmission A and C data are transmission signals transmitted to the mobile terminal B.

In the portable terminal B, the transmission A and C data synthesized and transmitted by the portable terminal A are received as reception A and C data through one line, decoded by the CODEC unit, and decoded by the speaker 69. Outputs voices from the mobile terminals A and C.

Similarly, the portable terminal C receives the transmitted A and B data synthesized and transmitted by the portable terminal A as the received A and B data, decodes the data in the CODEC section, and decodes the received data by the speaker 69. The voices from the mobile terminals A and B are output.

Thus, the portable terminal B and the portable terminal C are 1
Although it is the same mobile terminal as the conventional one that can only connect to the line,
One that can make a call with the other mobile terminal connected to the mobile terminal A by connecting to the mobile terminal A, and can easily make a three-way call at a low cost without using a voice conference service system. It is.

Conversely, when one or both of the mobile terminal B and the mobile terminal C are the present apparatus, only one mobile terminal is connected to two lines, and the other two terminals are connected to only one line. Then, it is possible to make a three-way call in the same manner as in the above-described example.

According to the portable terminal according to the embodiment of the present invention, portable terminal 1 (portable terminal A) capable of simultaneously connecting two lines.
The voice synthesizers 22a, 22b, 2
When the mobile terminal A talks with the mobile terminals B and C, the voice synthesizer 22a synthesizes the reception B data and the reception C data and outputs a CO.
The data is output to the DEC unit 23, the voice synthesizer 22b synthesizes the transmission A data and the reception C data, and outputs the synthesized data to the codec 14 as a transmission signal to the mobile terminal B. Since the A data and the reception B data are combined and output to the codec 14 as a transmission signal to the mobile terminal C, the communication between the mobile terminals B and C via the mobile terminal A becomes possible. In addition, there is an effect that a three-party call can be made without using the voice conference service system, a service charge is not required, and a three-party call can be made at a low fee.

Further, according to the present apparatus, since the voice conference service system is not used, the registration is not required, and the trouble of the pre-registration is eliminated. This has the effect of greatly improving convenience.

Furthermore, if one device is used, the other two devices can make a three-party call without using the audio conference service system even with a conventional portable terminal, and can easily realize a three-party call. There is an effect that can be.

Furthermore, if this apparatus becomes widespread, the number of users of the audio conference service system will decrease, so that the audio conference service system on the infrastructure side can be reduced, and the cost of the system can be reduced. effective.

Although the portable terminal for realizing a three-way call has been described here, if simultaneous connection of many lines (n lines) is possible, a speech synthesizer is added and the first speech synthesizer is provided. Then, all the received voices from the respective connection destinations are synthesized into the received voice, and the second to (n + 1) th voice synthesizers synthesize the received voice other than the received voice from the certain connected destination and the transmitted voice, and perform the connection. If the transmission is performed first, it is possible to easily make a simultaneous multi-party call with the connection destination of the n-line at a low cost without using the voice conference system, thereby improving the convenience.

[0049]

According to the present invention, a plurality of audio signals received using a receiving line connected from a plurality of connection destinations are synthesized and output to a speaker, and a transmission line connecting the received audio signals is used. Since the mobile terminal transmits the voice signal input from the microphone to all the transmission sources using the transmission line while transmitting the voice signal to the transmission source other than the transmission source, each connection destination transmits the transmission voice other than its own by one line. Since there is no need to use a multi-person simultaneous call service, registration work is not required, multi-person simultaneous calls can be easily made at low cost, and the convenience can be improved.

According to the present invention, there is provided a portable terminal connectable to a plurality of n lines at the same time, wherein the first voice synthesizer converts a plurality of voice signals received from a plurality of receiving lines of the connection destination. The synthesized speech is output to the speaker as a received voice, and the second to n + th channels are provided correspondingly to the transmission lines of the plurality of connection destinations.
A first voice synthesizer that synthesizes a voice signal input from a microphone with voice signals received from all other connection destinations except for the corresponding connection destination, and outputs the synthesized signal to the corresponding transmission line; Since the terminal is a terminal, the first voice synthesizer synthesizes the received voices from the n connection destinations into a received voice, and the second to n + 1th voice synthesizers use the n connection destinations other than their own. Can be received over a single line, and without using the multi-party simultaneous service on the infrastructure side, there is no need for registration work, and low-cost, simple multi-user simultaneous communication can be performed. Therefore, there is an effect that convenience can be improved.

According to the present invention, there is provided a portable terminal capable of simultaneously connecting two lines, wherein the first voice synthesizer converts the received voice signal of the first line and the received voice signal of the second line. The second voice synthesizer combines the received voice signal of the first line with its own transmitted voice signal input from the microphone, and outputs the received voice signal to the speaker as a received voice signal. A third speech synthesizer outputs the transmitted speech signal as a second speech signal.
Is a portable terminal that combines the received voice signal of the line and the transmitted voice signal of its own and outputs it as the transmitted voice signal of the first line. By providing the device, there is an effect that it is possible to easily realize a low-cost three-party call without registration work without using a multi-person simultaneous call service.

[Brief description of the drawings]

FIG. 1 is a diagram showing a mobile terminal according to an embodiment of the present invention;
FIG. 3 is an explanatory diagram illustrating a communication state between a mobile terminal and a wireless base station when a call is made between parties.

FIG. 2A is a block diagram showing a configuration of a mobile terminal (this device) according to an embodiment of the present invention, and FIG.
FIG. 2 is a block diagram illustrating a configuration of a voice call processing unit 16.

FIG. 3 is an explanatory diagram showing a signal flow in a three-party call using the present apparatus.

FIG. 4 is a system block diagram of a conventional mobile phone system for realizing a three-party call.

FIG. 5 is an explanatory diagram showing a communication state between a conventional portable terminal 6 and a wireless base station 7;

FIG. 6 is a configuration block diagram of a conventional portable terminal 6.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Portable terminal, 3 ... Mobile communication switching center, 4 ... Local switching center, 5 ... Voice conference service system, 6 ... Portable terminal, 7 ... Wireless base station, 11 ... Antenna, 12 ... High frequency part, 13 ... Modulation / demodulation part , 14 ... codec, 15 ...
TV telephone processing unit, 16: Voice call processing unit, 17: LC
D, 18: camera, 19: speaker, 20: microphone, 21: voice synthesizer, 22: voice synthesizer, 23
... CODEC part 31 Base station controller (BSC)
32 mobile communication exchange (MEX), 61 antenna
62: High frequency unit, 63: Modulation / demodulation unit, 64: Codec unit, 65: TV telephone processing unit, 66: Voice call processing unit, 67: LCD, 68: Camera, 69: Speaker, 70: Microphone, 71: Wireless transmission / reception Container (TR
X), 72: Radio equipment controller (CSC)

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04Q 7/38 H04Q 7/04 D

Claims (3)

[Claims] 1. A plurality of audio signals received using a reception line connected from a plurality of connection destinations are synthesized and output to a speaker, and the received audio signal is transmitted to a source other than the transmission source using a transmission line connected thereto. And a mobile terminal that transmits an audio signal input from a microphone to all transmission sources using the transmission line. 2. A portable terminal connectable to a plurality of n lines at the same time, wherein a plurality of audio signals received from a plurality of receiving lines to be connected are synthesized and output to a speaker as a receiving sound. A synthesizer, provided corresponding to each of the plurality of connection destination transmission lines, and converts an audio signal input from a microphone and an audio signal received from all other connection destinations except the corresponding connection destination. A portable terminal, comprising: a second to (n + 1) -th speech synthesizers that synthesize and output the synthesized speech to the corresponding transmission line. 3. A portable terminal connectable to two lines at the same time, wherein the first terminal combines a received voice signal of a first line and a received voice signal of a second line and outputs the combined signal to a speaker as a received voice signal. A second voice which synthesizes the received voice signal of the first line and the own transmitted voice signal input from the microphone, and outputs the synthesized voice signal as the transmitted voice signal of the second line. A third voice synthesizer that synthesizes the received voice signal of the second line and the own transmitted voice signal and outputs the synthesized voice signal as the transmitted voice signal of the first line. A mobile terminal characterized by the above-mentioned.