WO2021157764A1

WO2021157764A1 - Mobile terminal-integrated radio, and radio system and method using same

Info

Publication number: WO2021157764A1
Application number: PCT/KR2020/001732
Authority: WO
Inventors: 장순석
Original assignee: ㈜알고코리아
Priority date: 2020-02-07
Filing date: 2020-02-07
Publication date: 2021-08-12

Abstract

The present invention relates to a mobile terminal-integrated radio, and a radio system and method using same, the mobile terminal-integrated radio being characterized by comprising: a body to which a mobile terminal can be fastened and fixed; a push-to-talk (PTT) button for setting to a transmission mode or a reception mode; a modulation and demodulation unit which, in the transmission mode, modulates a DRM signal and wirelessly transmits the modulated DRM signal by means of an antenna, and which, in the reception mode, demodulates a signal wirelessly received by means of the antenna, thereby demodulating a DRM signal; a voice input and output unit which, in the transmission mode, acquires a voice signal corresponding to a user's voice, and which, in the reception mode, plays back a voice signal transmitted from the mobile terminal; a terminal connection unit which is electrically connected to the mobile terminal and transmits and receives the voice signals and the DRM signals; and a radio control unit which, in the transmission mode, delivers the voice signal from the voice input and output unit to the mobile terminal and delivers the DRM signal from the mobile terminal to the modulation and demodulation unit, and which, in the reception mode, delivers the DRM signal from the modulation and demodulation unit to the mobile terminal and delivers the voice signal from the mobile terminal to the voice input and output unit, wherein the data signal includes information about at least one among text, an image, and a file, and is generated or played back by means of the mobile terminal.

Description

Portable terminal integrated radio and radio system and method using the same

The present invention relates to a portable terminal integrated radio, which minimizes the configuration of the portable terminal integrated radio, but enables transmission and reception of more various information using the resources of the portable terminal, and a radio system and method using the same.

In general, the radio can transmit in both directions, but it is not a method in which two-way transmission is performed at the same time, but a half-duplex communication method in which transmission is possible in only one direction at the moment of transmission is mainly used.

Such a walkie-talkie enables one-to-one communication as well as one-to-many communication, and thus has an advantage that a plurality of communicators can communicate simultaneously within a certain range.

However, the conventional radio has a physical limitation of transmitting and receiving only a voice signal, and the demand for various uses thereof is gradually increasing.

Accordingly, in order to solve the above problems, the present invention provides a portable terminal integrated radio capable of transmitting and receiving more various information using the resources of the portable terminal while minimizing the configuration of the portable terminal integrated radio, and a radio system using the same, and We want to provide a way

Another object of the present invention is to provide a portable terminal integrated radio capable of being integrated into a portable terminal to maximize portability, and a radio system and method using the same.

The object of the present invention is not limited to the object mentioned above, and other objects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description.

As a means for solving the above problems, according to an embodiment of the present invention, a body that enables the mobile terminal to be fastened and fixed; PTT (Push-to-Talk) button to set transmit mode or receive mode; a modulation/demodulation unit that modulates a DRM signal and wirelessly transmits it through an antenna in a transmission mode, and demodulates a signal received wirelessly through the antenna in a reception mode to demodulate the DRM signal; a voice input/output unit that acquires a voice signal corresponding to the user's voice in the transmission mode and reproduces the voice signal transmitted from the portable terminal in the reception mode; a terminal connection unit electrically connected to the mobile terminal to transmit and receive voice signals and DRM signals; and in the transmission mode, the voice input/output unit transmits a voice signal to the portable terminal, and the portable terminal transmits the DRM signal to the modulation/demodulation unit. In the reception mode, the modulation/demodulation unit transmits the DRM signal to the portable terminal , a radio control unit for transmitting a voice signal from the portable terminal to the voice input/output unit, wherein the data signal includes information about at least one of text, image, and file, and is generated or reproduced through the portable terminal It provides a portable terminal integrated radio.

The portable terminal integrated radio further comprises a high pass filter for high pass filtering noise included in the DRM signal or voice signal to be transmitted to the portable terminal.

In addition, the portable terminal integrated radio may further include a user input unit for adjusting at least one of a tuning frequency, a communication channel, a reception sensitivity, and a frequency band.

The terminal connection part is characterized in that it is implemented as an audio plug and a charging gender, or is implemented as an integrated charging gender.

The body is characterized in that the audio plug and the charging gender, or the integrated charging gender, can be moved left and right.

The terminal connection part allows the audio plug and the charging gender or the integrated charging gender to rotate vertically in a hinge manner.

As a means for solving the above problems, a portable terminal coupled and fixed to a portable terminal integrated radio according to another embodiment of the present invention includes an external device connection unit electrically connected to the portable terminal to transmit and receive voice signals and DRM signals; Upon receiving the voice signal, a data signal is obtained and a DRM signal is generated by compression-coding with the voice signal, and then fed back to the portable terminal integrated radio. When the DRM signal is received, the voice signal and data from the DRM signal After the signal is extracted, the voice signal is fed back to the portable terminal integrated radio and the data signal includes an application to reproduce, and the data signal includes information on at least one of text, image, and file selected by the user. characterized in that

The application may include: a signal pre-processing unit for setting a transmission mode if the output signal of the portable terminal integrated radio is a voice signal, and for setting a reception mode if a DRM signal; an encoding unit for generating a DRM signal including a voice signal and a data signal in a transmission mode and feeding it back to the portable terminal integrated radio; In the reception mode, after decoding the DRM signal to extract a voice signal and a data signal, the voice signal is fed back to the portable terminal integrated radio and the data signal is audiovisualized and reproduced by a decoding unit; and a data signal generating unit that generates a data signal including at least one of text, an image, and a file searched and selected by a user in a transmission mode and provides the data signal to the encoding unit.

The signal pre-processor performs low-pass filtering and FFT conversion on the output signal of the portable terminal-integrated radio, and, if the average signal level is greater than or equal to the reference value, confirms the voice signal reception and sets the transmission mode; otherwise, the DRM signal reception is confirmed and received It is characterized by setting the mode.

As a means for solving the above problems, in the radio communication method of a radio system in which a radio and a portable terminal are combined and electrically connected according to another embodiment of the present invention, a PTT (Push-to-Talk) button of the radio is selected if yes, setting the transmission mode, otherwise setting the reception mode; when a transmission mode is set, acquiring a voice signal through the radio and acquiring a data signal including at least one of text, an image, and a file through the portable terminal; generating a DRM signal including the voice signal and the data signal through the mobile terminal, modulating the DRM signal through the radio, and outputting an antenna; when the reception mode is set, the radio receives a DRM signal through an antenna, and extracts a voice signal and a data signal included in the DRM signal through the portable terminal; and reproducing the voice signal through a portable terminal integrated radio, and reproducing the data signal through a portable terminal.

The present invention enables the portable terminal-integrated radio to more easily and effectively use the resources of the portable terminal, thereby minimizing the radio configuration and transmitting and receiving more various information.

In addition, by allowing the portable terminal-integrated radio and the portable terminal to be integrated, the two devices can be used as a single device, thereby maximizing the convenience of use.

1 is a schematic diagram of a radio system according to an embodiment of the present invention.

2 is a detailed configuration diagram of a radio system according to an embodiment of the present invention.

3 is a perspective view of a portable terminal integrated radio according to an embodiment of the present invention.

4 is a detailed configuration diagram of the body of the portable terminal integrated radio according to an embodiment of the present invention.

5 is a diagram for explaining a mode setting method of a mobile terminal according to an embodiment of the present invention.

6 is a diagram for explaining a signal transmission method of a radio system according to an embodiment of the present invention.

7 is a diagram for explaining a signal receiving method of a radio system according to an embodiment of the present invention.

The following is merely illustrative of the principles of the invention. Therefore, those skilled in the art will be able to devise various devices which, although not explicitly described or shown herein, embody the principles of the present invention and are included within the spirit and scope of the present invention. Moreover, it is to be understood that all conditional terms and examples listed herein are, in principle, expressly intended solely for the purpose of enabling the concept of the present invention to be understood, and not limited to the specifically enumerated embodiments and states as such. should be

Moreover, it is to be understood that all detailed description reciting the principles, aspects, and embodiments of the invention, as well as specific embodiments, are intended to cover structural and functional equivalents of such matters. It is also to be understood that such equivalents include not only currently known equivalents, but also equivalents developed in the future, i.e., all devices invented to perform the same function, regardless of structure.

Thus, for example, the block diagrams herein are to be understood as representing conceptual views of illustrative circuitry embodying the principles of the present invention. Similarly, all flowcharts, state transition diagrams, pseudo code, etc. may be tangibly embodied on computer-readable media and be understood to represent various processes performed by a computer or processor, whether or not a computer or processor is explicitly shown. should be

The functions of the various elements shown in the figures including a processor or functional blocks represented by similar concepts may be provided by the use of dedicated hardware as well as hardware having the ability to execute software in association with appropriate software. When provided by a processor, the functionality may be provided by a single dedicated processor, a single shared processor, or a plurality of separate processors, some of which may be shared.

In addition, clear use of terms presented as processor, control, or similar concepts should not be construed as exclusively referring to hardware having the ability to execute software, and without limitation, digital signal processor (DSP) hardware, ROM for storing software. It should be understood to implicitly include (ROM), RAM (RAM) and non-volatile memory. Other common hardware may also be included.

In the claims of the present specification, a component expressed as a means for performing the function described in the detailed description includes, for example, a combination of circuit elements that perform the function or software in any form including firmware/microcode, etc. It is intended to include all methods of performing the functions of the device, coupled with suitable circuitry for executing the software to perform the functions. Since the present invention defined by these claims is combined with the functions provided by the various enumerated means and combined in a manner required by the claims, any means capable of providing the functions are equivalent to those contemplated from the present specification. should be understood as

The above-described objects, features and advantages will become more apparent through the following detailed description in relation to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains can easily implement the technical idea of the present invention. There will be. In addition, in the description of the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

As shown in FIG. 1 , the system of the present invention includes a portable terminal integrated radio 100 and a portable terminal 200 fastened to and fixed to the portable terminal integrated radio 100 .

In this case, the mobile terminal 200 is a terminal capable of downloading, installing and executing various applications from an external server, such as various mobile phones, smart phones, PDA, tablet PCs, etc. It is a terminal that can download, install, and run an application to support interworking with .

Accordingly, the present invention minimizes the configuration of the portable terminal integrated radio 100, and utilizes the application of the portable terminal 200 to additionally transmit/receive and reproduce data signals (ie, text, images, files, etc.) in addition to voice signals. .

In addition, by allowing the portable terminal 200 to be integrated into the portable terminal integrated radio 100, the user may use the two devices as if they were a single device.

2 is a detailed configuration diagram of a radio system according to an embodiment of the present invention, and FIG. 3 is a perspective view of a portable terminal integrated radio according to an embodiment of the present invention.

First, referring to FIG. 2 , the portable terminal integrated radio 100 of the present invention includes a body 110 , a user manipulation unit 120 formed on the surface of the body 110 , an antenna 130 , a terminal connection unit 140 , and a body. It includes a modulation/demodulation unit 150 , a voice input/output unit 160 , a radio control unit 170 , and the like built in 110 .

The body 110 can be coupled and fixed to the mobile terminal 200, and in particular, considering that the size of the mobile terminal 200 can be changed in various ways, when the mobile terminal is inserted into both sides of the body 110, the mobile terminal is portable. By further providing

grip devices

111 and 112 that move backward from the side of the terminal and advance toward the side of the portable terminal when the insertion of the portable terminal is completed, both sides of the portable terminal 200 can be tightly fixed through them.

The user operation unit 120 is provided with a push-to-talk (PTT) button 121 for requesting to set the transmission mode, and through this, the operation mode of the radio is varied.

In addition, the tuning dial 122 for adjusting the tuning frequency, the channel dial 123 for adjusting the communication channel, the reception sensitivity dial 124 for adjusting the reception sensitivity, and a switch for adjusting the frequency band (VH, VHF) (125) and the like are additionally provided, and various requirements of the user are also inputted through them. Of course, it is of course natural that the specific implementation form of the user manipulation unit 120 may be variously changed as needed in the future.

The antenna 130 performs a signal wireless transmission operation in the transmission mode, and performs a signal wireless reception operation in the reception mode.

The terminal connection unit 140 includes at least one of the audio plug 141 and the charging gender 142 , and electrically connects to the portable terminal 200 through these to transmit and receive various signals and power.

An implementation method of the terminal connection unit 140 may vary according to an interfacing method of the portable terminal 200 . For example, when the portable terminal 200 is provided with an audio terminal and a charging terminal separately, the terminal connection unit 140 is also implemented as an audio plug 141 for signal transmission and reception and a charging gender 142 for power charging. can On the other hand, when the mobile terminal 200 has only an integrated charging terminal, it may be implemented only with an integrated charging gender (not shown) capable of simultaneously performing signal transmission/reception and power charging operations. However, hereinafter, for convenience of description, only a case in which all radio-related signals are transmitted and received using only the audio plug 141 will be described.

The modulation/demodulation unit 150 includes a modulator 151 and a demodulator 152, and in a transmission mode, modulates a DRM signal into a transmission signal using the modulation unit 151 to provide the antenna 130 with, and receive. In the mode, the demodulator 152 demodulates the received signal of the antenna 130 into a DRM signal.

The voice input/output unit 160 includes a microphone 161 and a speaker 162 , and acquires a voice signal corresponding to the user's voice using the microphone 161 in the transmission mode, and the speaker 162 in the reception mode. A voice signal transmitted from the mobile terminal 200 is reproduced through

The radio control unit 170 controls the overall operation of the radio according to various request values input by the user manipulation unit 120 . In particular, the operation mode is set according to the operation value of the PTT button 121 , and in the transmission mode, a voice signal is transmitted from the microphone 161 to the portable terminal 200 , and the modulation unit 151 from the portable terminal 200 . The furnace transmits a DRM signal. In the reception mode, a DRM signal is transmitted from the demodulator 152 to the portable terminal 200 , and an audio signal is transmitted from the portable terminal 200 to the speaker 162 .

The noise removing unit 180 removes noise included in the DRM signal or voice signal to be transmitted to the portable terminal 200 by high-pass filtering.

In addition, the radio 100 is further provided with a power supply for generating and supplying the radio driving power by charging or discharging the battery through the power (eg, commercial power, portable terminal power) applied through the charging gender 142 . Of course it can be done.

In addition, when the remaining battery level of the portable terminal 200 falls below a threshold value, the power supply unit detects this and discharges its own battery power to supply it to the portable terminal 200 .

Subsequently, the portable terminal 200 of the present invention includes an external device connection unit 210 , a data input/output unit 220 , and an application 230 .

The external device connection unit 210 is electrically connected to the terminal connection unit 140 of the portable terminal integrated radio 100 to transmit and receive various signals and power.

The data input/output unit 220 includes a touch screen and a speaker, and receives various user control values through this, or audiovisualizes and reproduces various information.

The application 230 again includes a signal pre-processing unit 231 , an encoding unit 232 , a decoding unit 233 , and a data signal generating unit 234 .

The signal preprocessor 231 low-pass filters the signal transmitted from the radio 100, and then performs FFT conversion and analysis to distinguish the signal type. If the signal type is a voice signal, the transmission mode is set, and if the signal type is a DRM signal, the reception mode is set.

The encoding unit 232 generates a DRM signal by compression-coding a voice signal transmitted from the radio 100 and a data signal generated by the portable terminal 200 in the transmission mode in the transmission mode, and feeds it back to the radio 100 . do.

In the reception mode, the decoding unit 233 decodes the DRM signal transmitted from the transceiver 100 to extract a voice signal and a data signal, and then feeds the voice signal back to the transceiver 100, and the data signal is a data input/output unit ( 220) to play through.

The data signal generator 234 configures and provides a user control screen including at least one of a text input menu, an image input menu, and a file input menu in the transmission mode, and provides text and images that the user searches and selects through it. , and a data signal including at least one of a file and a file is generated and output.

In this case, the text, image, and file may be information obtained and stored in advance in the mobile terminal, but may also be information obtained and input by the user in real time if necessary. For example, acquiring and using an image captured in real time through a camera, acquiring and using text input in real time through a text input menu, and a file acquired in real time through another application linked to the application 230 By using it, it is also possible to generate and output the above data signal.

As described above, the size of the portable terminal 200 may be variously changed for each type of the portable terminal 200, and in this case, the positions of the audio terminal, the charging terminal, or the integrated charging terminal may also be variously changed.

Accordingly, in the present invention, the audio plug 141 and the charging gender 142 or the integrated charging gender (not shown) are implemented in a form that can move in the left and right directions of the body, so that regardless of the type of the portable terminal 200 , it is always a portable terminal (200) to support the electrical connection.

To this end, the body 110 is divided into a side body 113 and a lower body 114, as shown in FIG. It can be implemented through the two

slide bars

421 and 422 that are inserted into the groove and move in the left and right directions, and the audio plug 141 and the charging gender 142 attached to each of the slide bars 421 and 422 . Of course, a specific implementation method thereof can be variously changed as needed.

In addition, as in Fig. 4 (b), by having a structure in which the side body 113 and the lower body 114 are coupled through a hinge 115, the terminal connection unit 140 can be rotated up and down, Through this, the terminal connection unit 140 and the external device connection unit 210 of the portable terminal 200 can be more easily connected.

In the present invention, since both a voice signal and a DRM signal must be transmitted and received using a single connection device (ie, an audio plug or an integrated charging gender), the mobile terminal distinguishes the types of signals currently transmitted and received through one connection device, Based on this, the operation mode should be able to be changed at any time.

On the other hand, the voice signal and the DRM signal have a spectrum that can be completely distinguished from each other in the frequency domain, and in particular, the size of the voice signal is significantly larger than that of the DRM signal.

Accordingly, the application 230 of the present invention performs low-pass filtering and FFT conversion on the signal transmitted from the radio 100 through the signal preprocessor 231 . And if the average magnitude of the FFT-converted signal is greater than a preset reference value, it is determined that the current received signal is a voice signal and a transmission mode is set. Otherwise, it is determined that the current received signal is a DRM signal and a reception mode is set.

Accordingly, the present invention enables both the transmission mode and the reception mode signal to be transmitted using a single connection device, and also enables automatic setting of the operation mode based on the signal type without a separate operation by the user.

If, in a state in which the portable terminal integrated radio 100 and the portable terminal 200 are integrated, the user presses the PTT button 121 of the radio 100 to request the transmission mode setting (S11), the radio control unit 170 sets the transmission mode in response thereto (S12).

Then, the microphone 161 is activated to record the user's voice to generate a voice signal (S13), and then transfer it to the portable terminal 200 (S14).

Then, the mobile terminal 200 automatically sets the transmission mode after confirming the reception of the voice signal through the signal preprocessor 231 ( S15 ).

Then, the data signal generator 234 of the portable terminal 200 calls the user control screen and displays the screen. Accordingly, when the user selects at least one of text, an image, and a file by manipulating the user control screen, a data signal is generated based on the user selection information (S16).

Then, the voice signal received in step S14 and the data signal generated in step S16 are combined and compressed to generate a DRM signal (S17), and feed it back to the radio 100 (S18).

Then, the radio 100 modulates the DRM signal through the modulator 151 and converts it into an antenna transmittable signal form, and the antenna 130 transmits it wirelessly so that another radio located in a short distance can receive it wirelessly ( S19).

If, in a state in which the portable terminal integrated radio 100 and the portable terminal 200 are integrated, the user does not press the PTT button 121 of the radio 100 (S21), the radio control unit 170 releases the transmission mode and set the reception mode (S22).

Then, it receives a signal wirelessly transmitted by another radio through the antenna 130 , and demodulates the received signal through the demodulator 152 to obtain a DRM signal ( S23 ), and then delivers it to the portable terminal 200 . (S24).

Then, after confirming the reception of the DRM signal through the signal preprocessor 231 , the portable terminal 200 changes the operation mode of the portable terminal 200 to the reception mode (S25).

Then, the decoding unit 233 is activated to decode the DRM signal to extract an audio signal and a data signal (S26), and then the data signal is immediately reproduced through the data input/output unit 220 (S27).

And at the same time, the voice signal is fed back to the radio 100 so that it is reproduced through the speaker 162 of the radio 100 (S28).

The method according to the present invention described above may be produced as a program to be executed by a computer and stored in a computer-readable recording medium. Examples of the computer-readable recording medium include ROM, RAM, CD-ROM, magnetic tape. , a floppy disk, an optical data storage device, and the like, and also includes those implemented in the form of a carrier wave (eg, transmission through the Internet).

The computer-readable recording medium is distributed in a network-connected computer system, so that the computer-readable code can be stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for implementing the method can be easily inferred by programmers in the art to which the present invention pertains.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is common in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Various modifications may be made by those having the knowledge of, of course, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

Claims

a body that allows the mobile terminal to be fastened and fixed;

PTT (Push-to-Talk) button to set transmit mode or receive mode;

a modulation/demodulation unit that modulates a DRM signal and wirelessly transmits it through an antenna in a transmission mode, and demodulates a signal received wirelessly through the antenna in a reception mode to demodulate the DRM signal;

a voice input/output unit that acquires a voice signal corresponding to the user's voice in the transmission mode and reproduces the voice signal transmitted from the portable terminal in the reception mode;

a terminal connection unit electrically connected to the mobile terminal to transmit and receive voice signals and DRM signals; and

In the transmission mode, the voice input/output unit transmits a voice signal to the portable terminal, and the portable terminal transmits the DRM signal to the modulation/demodulation unit. In the reception mode, the modulation/demodulation unit transmits the DRM signal to the portable terminal, and a radio control unit for transmitting a voice signal from the mobile terminal to the voice input/output unit,

The data signal includes information on at least one of a text, an image, and a file, and is generated or reproduced through the portable terminal.
According to claim 1,

The portable terminal-integrated radio according to claim 1, further comprising a high-pass filter for high-pass filtering noise included in the DRM signal or the voice signal to be transmitted to the portable terminal.
According to claim 1,

A portable terminal integrated radio, characterized in that it further comprises a user input unit for adjusting at least one of a tuning frequency, a communication channel, a reception sensitivity, and a frequency band.
The method of claim 1, wherein the terminal connection unit

A portable terminal integrated radio, characterized in that implemented with an audio plug and a charging gender, or implemented as an integrated charging gender.
According to claim 5, wherein the body is

A portable terminal integrated radio, characterized in that the audio plug and the charging gender, or the integrated charging gender, can be moved left and right.
The method of claim 5, wherein the terminal connection unit

A portable terminal-integrated radio that allows the audio plug and the charging gender, or the integrated charging gender, to rotate up and down in a hinged way.
In the portable terminal coupled to and fixed to the portable terminal integrated radio,

an external device connection unit electrically connected to the portable terminal to transmit and receive voice signals and DRM signals;

When the voice signal is received, a data signal is obtained and a DRM signal is generated by compression-coding with the voice signal, and then fed back to the portable terminal integrated radio. When the DRM signal is received, the voice signal and data from the DRM signal After extracting the signal, the voice signal is fed back to the portable terminal integrated radio and the data signal includes an application that reproduces,

The data signal is

A mobile terminal comprising information on at least one of text, an image, and a file selected by a user.
The method of claim 7, wherein the application

a signal pre-processing unit for setting a transmission mode when the output signal of the portable terminal integrated radio is a voice signal, and for setting a reception mode when a DRM signal;

an encoding unit for generating a DRM signal including a voice signal and a data signal in a transmission mode and feeding it back to the portable terminal integrated radio;

In the reception mode, after decoding the DRM signal to extract a voice signal and a data signal, the voice signal is fed back to the portable terminal integrated radio and the data signal is audio-visualized and reproduced by a decoding unit; and

and a data signal generating unit that generates a data signal including at least one of text, image, and file searched and selected by a user in a transmission mode and provides the data signal to the encoding unit.
The method of claim 8, wherein the signal preprocessor

After low-pass filtering and FFT conversion of the output signal of the portable terminal integrated radio, if the average signal level is greater than or equal to the reference value, the voice signal reception is confirmed and the transmission mode is set; otherwise, the DRM signal reception is confirmed and the reception mode is set. A mobile terminal, characterized in that.
In the radio communication method of the radio system in which the radio and the portable terminal are combined and electrically connected,

If the PTT (Push-to-Talk) button of the radio is selected, setting a transmission mode, otherwise setting a reception mode;

when a transmission mode is set, acquiring a voice signal through the radio and acquiring a data signal including at least one of text, an image, and a file through the portable terminal;

generating a DRM signal including the voice signal and the data signal through the mobile terminal, modulating the DRM signal through the radio, and outputting an antenna;

when the reception mode is set, the radio receives a DRM signal through an antenna, and extracts a voice signal and a data signal included in the DRM signal through the portable terminal; and

and reproducing the voice signal through a portable terminal-integrated radio, and reproducing the data signal through a portable terminal.