KR101106768B1 - A Multi-functional Communication Apparatus with Bluetooth - Google Patents

Abstract

The present invention relates to a multi-function communication device using Bluetooth, the multi-function communication device using Bluetooth, the Bluetooth dongle device connected to a landline telephone and a public telephone network, dial dial for receiving a telephone number according to the user's operation; A DTMF generator for generating a DTMF tone corresponding to the number output from the dial keypad and outputting the DTMF tone to an analog data access device; An analog data access device connected to a public telephone network to perform a voice call, output a voice signal input from the public telephone network to a Bluetooth circuit unit, and receive a voice signal output from the Bluetooth circuit unit and output the voice signal to the public telephone network (Analog Data Access). Arrangement); And a Bluetooth circuit unit connected to a Bluetooth headset, configured to transmit a voice signal output from the analog data connection device to the Bluetooth headset, and receive and output the voice signal transmitted from the Bluetooth headset to the analog data connection device. It is a multifunctional communication device using Bluetooth.

According to the present invention, a Bluetooth headset, which can only be linked to an existing mobile phone or a Bluetooth terminal, can be used even during a normal phone call (wired phone). It has the advantage of being able to talk and listen to music wirelessly rather than wired.

Landline, Bluetooth Dongle, PSTN, Bluetooth Headset

Description

Multi-functional communication device using Bluetooth {A Multi-functional Communication Apparatus with Bluetooth}

The present invention relates to a multi-function communication device using Bluetooth, and more particularly, to a dongle device configured to be able to use a Bluetooth headset which can only be linked to an existing mobile phone or a Bluetooth terminal, even when making a normal phone call. .

Recently, due to the development of short-range wireless communication technology, various short-range wireless communication devices have been used in real life. In particular, Bluetooth headsets that work with multimedia players such as MP3 players and PMPs, Bluetooth headsets that work with mobile phones that support Bluetooth functions, Bluetooth hands-free devices, Bluetooth keyboards and mice that work with personal computers wishing for Bluetooth functions, etc. Short-range wireless communication technologies such as Bluetooth have been actively developed and applied to build a wireless environment for devices that had to be connected by wire.

On the other hand, in order to solve the inconvenience of landline telephones have been developed and utilized in the home to use a wireless phone, but there was a problem that additional costs are generated because such a wireless phone had to have a separate wireless telephone system. In order to solve this problem, a technology for establishing a wireless environment has been developed by applying a short range wireless communication technology to a wired telephone.

However, in the case of a dongle device for a wireline telephone according to the prior art, a Bluetooth dongle is connected to a connection portion of a handset portion of a general telephone to use only a voice transmission / reception portion without a telephone circuit. In other words, the dongle device itself is not possible to transmit, there was an inconvenience that must be used as a normal landline telephone.

In addition, the dongle device for wired telephones according to the prior art has a problem in that its utilization is insignificant because it is simply configured to perform a function of transmitting and receiving a voice signal of a wired telephone.

SUMMARY OF THE INVENTION An object of the present invention is to provide a multifunctional communication apparatus using Bluetooth including a telephone circuit associated with telephone call connection and control using an analog data access arrangement (Analog Data Access Arrangement). It is done.

In addition, the present invention to solve the problems of the prior art as described above, to provide a multi-function communication device using Bluetooth that is connected to the USB port of the computer and can transmit the audio signal output from the computer to the Bluetooth headset. It is done.

In order to achieve the above object, according to a preferred embodiment of the present invention, a Bluetooth dongle device connected to a landline telephone and a public telephone network, the dial keypad for receiving a telephone number according to the user's operation; A DTMF generator for generating a DTMF tone corresponding to the number output from the dial keypad and outputting the DTMF tone to an analog data access device; An analog data access device connected to a public telephone network to perform a voice call, output a voice signal input from the public telephone network to a Bluetooth circuit unit, and receive a voice signal output from the Bluetooth circuit unit and output the voice signal to the public telephone network (Analog Data Access). Arrangement); And a Bluetooth circuit unit connected to a Bluetooth headset to transmit a voice signal output from the analog data connection device to the Bluetooth headset, and receive a voice signal transmitted from the Bluetooth headset and output the received voice signal to the analog data connection device. A multifunctional communication device using Bluetooth is provided.

Here, the above-described analog data connection apparatus, public telephone network call connection unit for controlling a call connection through the public telephone network; An audio processor for outputting a voice signal transmitted through the public telephone network to the Bluetooth unit, and transmitting a voice signal input from the Bluetooth unit through the public telephone network; And it may be configured to include a control register for controlling the operation of the public telephone network call connection unit and the audio processor.

In addition, the above-described Bluetooth circuitry, RF circuitry for searching for a Bluetooth headset within the communication radius, and paired with the found Bluetooth headset to perform short-range wireless communication; The audio signal transmitted from the analog data connection device is transmitted to the paired Bluetooth headset through the RF circuit unit, and the audio signal transmitted from the paired Bluetooth headset is received through the RF circuit unit and output to the analog data connection device. Processing unit; And a data connection device processing unit for transmitting an incoming signal input from the data connection device to the paired Bluetooth headset through the RF circuit unit, and outputting a call signal received from the Bluetooth headset through the RF circuit unit to the data connection device. It can be configured to include.

On the other hand, the above-mentioned Bluetooth circuit unit, the USB communication unit connected to the USB port of the personal computer via a USB cable is configured to further include a USB communication unit for receiving the audio signal output from the connected personal computer to the paired Bluetooth headset via the RF circuit unit. May be

More preferably, the aforementioned USB communication unit may be configured to receive a control signal transmitted from a paired Bluetooth headset through the RF circuit unit and output the received control signal to a connected personal computer.

On the other hand, the multi-function communication device using Bluetooth as described above, further comprises a selection unit for outputting a control signal for controlling the master mode / slave mode of the multi-function communication device using the Bluetooth according to the user's operation, using the Bluetooth The multifunction communication device may be configured to operate as a master device of a Bluetooth communication network or a slave device of a Bluetooth communication network according to a control signal output from the selection unit.

As described above, according to the multifunctional communication device using Bluetooth according to the present invention, there is an advantage that a Bluetooth headset, which can be linked only to an existing mobile phone or a Bluetooth terminal, can be used even during a general phone call.

In addition, according to the present invention by connecting a multi-function communication device using Bluetooth with a built-in Bluetooth function to a general telephone and a personal computer, there is an advantage that you can talk or listen to music wirelessly rather than wired.

In addition, according to the present invention for users with a high volume of calls to connect a mobile phone and a landline phone at the same time with a single Bluetooth headset to enable more convenient and efficient use of the call, and also through a Bluetooth stereo headset in conjunction with a personal computer and USB There is an advantage that you can enjoy music listening wirelessly.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the multi-function communication device using Bluetooth.

1 is a schematic configuration diagram of a wireless system using a multifunctional communication device using Bluetooth according to an embodiment of the present invention. Hereinafter, an embodiment of a wireless system using a multifunctional communication device using Bluetooth according to the present invention will be described in detail with reference to FIG. 1.

As shown in FIG. 1, the wireless system using the multi-function communication apparatus 100 using Bluetooth includes a multi-function communication apparatus 100 using Bluetooth, a public telephone network 200, a wired telephone 300, and a Bluetooth headset 600. It may include.

Multifunction communication apparatus 100 using Bluetooth according to the present invention may include a public telephone network (PSTN network, Public Subcriber Telephone Network) (200) connection terminal, wired telephone 300 connection terminal, 5V adapter 500 connection terminal have.

The public telephone network 200 is basically a network to be connected to make a telephone call, and is connected to the Bluetooth dongle device 100 according to the present invention using an RJ11 jack which is a telephone line standard.

The wired telephone 300 is also connected using the RJ11 jack, and can be connected to the Bluetooth dongle device 100 according to the present invention, a general wired telephone generally used in an office or home. As such, when the wired telephone 300 is connected to the Bluetooth dongle device 100, the user may not only make a phone call using the Bluetooth headset 600 using Bluetooth communication, but also connect to the dongle device 100 in general. The landline phone 300 can be used to make a phone call.

In addition, more preferably, the Bluetooth dongle device 100 for a wireline telephone according to the present invention has an advantage that a telephone call can be made even without a separate wireline telephone, unlike the Bluetooth dongle device according to the prior art. A detailed configuration for performing such a function will be described later with reference to FIG. 3.

The 5V adapter 500 is connected to a power connection terminal of the Bluetooth dongle device 100 according to the present invention to supply power to the dongle device 100.

The multifunction communication device 100 and the Bluetooth headset 600 using Bluetooth according to the present invention are paired using a Bluetooth method to form a piconet and perform wireless data communication. More preferably, the dongle device 100 and the Bluetooth headset 600 according to the present invention are configured to be connected using a headset profile. At this time, the master to form / manage the piconet becomes a multi-function communication device 100 using Bluetooth, Bluetooth headset 600 is to function as a slave.

On the other hand, in the present embodiment has been described based on the embodiment using the Bluetooth headset 600, various Bluetooth devices that can be connected through the Bluetooth headset profile can be connected and used, the Bluetooth mobile phone 700 shown in FIG. ) May be connected to a slave of the Bluetooth dongle device 100 to perform a landline call using a Bluetooth mobile phone.

The multi-function communication apparatus 100 using Bluetooth receives a voice signal transmitted through the public telephone network 200 and wirelessly transmits it to the Bluetooth headset 600, and receives a voice signal wirelessly transmitted from the Bluetooth headset 600 to receive a public telephone network. By performing the transmission through the 200, the telephone call function is performed.

On the other hand, after the dongle device 100 and the Bluetooth headset 600 according to the present invention are connected using a headset profile according to the present invention, the Bluetooth headset 600 and the Bluetooth mobile phone 700 are also It may be configured to connect using a headset profile. When the wireless system is configured in this manner, the user may be provided with a telephone call function using the public telephone network 200 through the headset profile between the multifunction communication apparatus 100 and the Bluetooth headset 600 using Bluetooth. Through the headset profile between the Bluetooth headset 600 and the Bluetooth cellular phone 700, a telephone call function through the mobile communication network may be provided. That is, the user can selectively use a landline phone and mobile communication using one Bluetooth headset 600.

2 is a schematic diagram of a wireless system using a multi-function communication device using Bluetooth according to another preferred embodiment of the present invention. Difference from the embodiment shown in Figure 1 is a multimedia content playback device such as a personal computer 400 is connected to the multi-function communication device 100 using Bluetooth according to the present invention, multi-function communication device using Bluetooth according to the present invention 100 is configured to perform an audio signal relay function in addition to the existing voice call relay function.

Hereinafter, a description of the same technical features as the illustrated embodiment of FIG. 1 will be omitted, and a wireless system using a multifunction communication apparatus using Bluetooth according to the present invention will be described based on other technical features of the embodiment of FIG. 1.

The public telephone network 200, the wired telephone 300, the computer 400, and the 5V adapter 500 are connected to the connection terminal of the multifunction communication apparatus 100 using Bluetooth.

The computer 400 is connected to the connection terminal of the Bluetooth dongle device 100 according to the present invention with a USB cable through a USB port. More specifically, the D + and D- data lines of a USB port of a notebook or personal computer are connected to the USB communication unit of the Bluetooth dongle device 100, and the Bluetooth dongle device 100 is connected to the multimedia content (audio content) from the computer 400. In response to the reproduction of the audio signal is output is received and transmitted to the Bluetooth headset 600. Here, an embodiment is constructed using a computer such as a notebook computer or a personal computer.

Meanwhile, in order to perform such a function, the Bluetooth dongle device 100 and the Bluetooth headset according to the present invention are connected using a headset profile, an advanced audio distribution profile (A2DP), and an audio video remote control profile (AVRCP). It is configured to be.

Headset Profile is a profile that is generally used as a communication means through the SCO link to support a call function, and A2DP is a profile for stereo audio wireless transmission, which is a profile for performing audio data streaming between devices, and AVRCP Is a profile for audio remote control such as next song / previous song / play / pause.

In this way, when the wireless system using the multi-function communication device 100 using Bluetooth according to the present invention is configured, the telephone using the public telephone network 200 through the headset profile between the Bluetooth dongle device 100 and the Bluetooth headset 600 The call function can be performed, and the sound source played through the computer 400 can be viewed through the Bluetooth headset 600 through the A2DP. Here, the listening of the sound source is performed by connecting the D + and D- data lines with the USB communication unit of the Bluetooth dongle device 100 using the USB port of the Bluetooth dongle device 100 and the computer 400 according to the present invention. Receives an audio signal that is reproduced and output, and transmits the audio signal input from the Bluetooth dongle device 100 to the Bluetooth headset 600 by using the A2DP, it is configured to enjoy the sound source played on the computer.

In addition, although the use of AVRCP is limited, for example, the sound source played by the computer's window media player can be played and stopped, paused, paused, previous or next song by using the Bluetooth headset 600. Playback controls and so on. Therefore, while listening to the sound source to be played through the computer 400 with the Bluetooth headset 600, if the telephone reception through the public telephone network 200 is detected, the playback of the sound source is paused for a while after the phone call, the sound source again The ability to do so becomes possible.

3 is a block diagram illustrating a multifunctional communication device using Bluetooth according to an embodiment of the present invention. With reference to the accompanying Figure 3 will be described in detail the configuration and function of the multi-function communication device using Bluetooth for performing the function as described above.

First, a brief description of the unique technical features of the multi-function communication device using Bluetooth according to the present invention.

First, the present invention is a multi-function communication device using Bluetooth and a Bluetooth USB dongle device for personal computers, in the case of the dongle device to which the prior art is applied by incorporating a Bluetooth dongle to the connection portion of the handset part of the general telephone Unlike the voice transmission / reception part without a circuit, the present invention is characterized in that it is a Bluetooth dongle device including a telephone circuit related to telephone call connection and control using an analog data access arrangement.

Secondly, unlike the prior art to which the existing technology is applied, the present invention additionally outputs the D + and D- data lines of the USB port of the computer from the computer 400 by connecting the USB communication unit of the Bluetooth dongle device 100 according to the present invention. It is characterized in that it is an additional device having a function of transmitting the audio signal to the Bluetooth headset 600.

As shown in FIG. 3, the multifunction communication device 100 using Bluetooth according to the present invention includes an analog data connection device 110, a Bluetooth circuitry unit 120, a power supply unit 130, a dial keypad 140, and a DTMF (Dial). Tone Multi-Frequency) generator 150 may be included.

The dial keypad receives a telephone number according to the user's operation, and the DTMF generator generates a DTMF tone corresponding to the number output from the dial keypad according to the user's operation and outputs the DTMF tone to the analog data access device 110.

Analog Data Access Arrangement (Analog Data Access Arrangement) 110 is connected to the public telephone network 200 to perform a voice call, and outputs a voice signal input from the public telephone network 200 to the Bluetooth circuit unit 120, Bluetooth circuit unit The voice signal output from the 120 is received and output to the public telephone network 200.

The analog data access device 110 is an interface in a computer and a modem for connecting to a public telephone network 200, also called a telephone line interface module, and includes a general telephone switching network including a fax machine, a private branch exchange (PBX), a set-top box, an alarm system, and the like. It is a device attached to (PSTN network).

Since the multi-function communication apparatus 100 using Bluetooth according to the present invention is configured to include a telephone circuit associated with telephone call connection and control using an analog data access arrangement as described above, a separate wired telephone ( Even if 300 is not provided, the phone call can be independently performed.

The Bluetooth circuit unit 120 is connected to the Bluetooth headset 600, transmits the voice signal output from the analog data connection device 110 to the Bluetooth headset 600, and receives the voice signal transmitted from the Bluetooth headset 600 Output to the analog data connection device 110.

On the other hand, more preferably, the analog data connection device 110 according to the present invention may include a public telephone network call connection unit 111, the audio processing unit 112 and the control register 113.

The public telephone network call connection unit 111 controls the call connection through the public telephone network 200. That is, the public telephone network call connection unit 111 detects a ring signal transmitted through the public telephone network and forms a call path according to the user's operation when the ring signal is detected.

The audio processor 112 outputs the voice signal transmitted through the public telephone network 200 to the Bluetooth circuit unit 120, and transmits the voice signal input from the Bluetooth circuit unit 120 through the public telephone network 200. In addition, the audio processor 112 according to the present invention determines whether the user performs a call using the Bluetooth headset 600 or a call using the connected wired telephone 300 to a device for performing a call. Therefore, it may be configured to perform input and output of a voice signal.

The control register 113 controls the operations of the public telephone network call connection unit 111 and the audio processing unit 112.

More preferably, the Bluetooth circuit unit 120 according to the present invention may include an RF circuit unit 121, an audio processor 122, a data connection device processor 123, and a USB communication unit 124.

The RF circuit unit 121 is a component that performs short-range wireless data communication with a Bluetooth headset using Bluetooth. The RF circuit unit 121 searches for a Bluetooth headset 600 within a communication radius and is paired with the found Bluetooth headset 600 to perform short-range wireless communication. Communicate. In this case, as described above, a headset profile, an advanced audio distribution profile (A2DP), and an audio video remote control profile (AVRCP) may be used.

The audio processor 122 transmits the voice signal output from the analog data connection device 110 to the paired Bluetooth headset 600 through the RF circuit unit 121 and transmits the voice signal transmitted from the paired Bluetooth headset 600. It is received through the RF circuit unit 121 and output to the analog data connection device 110.

The data connection device processing unit 123 transmits an incoming signal input from the data connection device 110 to the paired Bluetooth headset 600 through the RF circuit unit 121 and transmits the RF circuit unit 121 from the Bluetooth headset 600. It outputs the call signal received through the data connection device 110.

The USB communication unit 124 receives a sound signal output from the connected personal computer 400 connected to the USB port of the personal computer 400 through a USB cable to the Bluetooth headset 600 paired through the RF circuit unit 121. And, more preferably receives a control signal (control signal for the control of the next song / previous song / playback / pause, etc.) transmitted from the paired Bluetooth headset 600 through the RF circuit 121, and receives The control signal may be configured to be output to the connected personal computer 400.

Hereinafter, the operation of the multi-function communication device 100 using Bluetooth according to the present invention configured as described above will be described.

First, the public telephone network 200, the wired telephone 300, the computer 400, the 5V adapter 500 is connected to the connection terminal of the multi-function communication device 100 using Bluetooth.

After the basic connection is completed, the user operates the multifunction communication device 100 using Bluetooth according to the present invention to perform a device registration mode (Pairing mode), the Bluetooth dongle device 100 to search for a Bluetooth device in the communication radius do. When the Bluetooth headset 600 exists within the communication radius of the Bluetooth dongle device 100, the Bluetooth dongle device 100 is ready to perform short-range wireless data communication by pairing the discovered Bluetooth headset 600 with a slave to form a piconet. Will complete. At this time, the Bluetooth dongle device 100 and the Bluetooth headset 600 are connected by using a headset profile, an advanced audio distribution profile (A2DP), and an audio video remote control profile (AVRCP).

When the telephone comes from the public telephone network 200 in the on-hook state, the public telephone network call connection unit 111 first detects a ring signal to detect the data of the RF circuit unit 121 through the control register 113. Output to the connection device processing unit 123.

The RF circuit unit 121 receiving the incoming signal (ring signal detection signal) output from the control register 113 transmits the incoming signal to the Bluetooth headset 600, and the Bluetooth headset 600 receiving the incoming signal is provided. By ringing the bell through the sound means, etc., the user is notified of the incoming call. At this time, at the same time, a bell to notify that the call came from the landline (300).

When the user recognizes that the call is coming and presses the talk button of the Bluetooth headset 600, the Bluetooth headset 600 transmits a call signal to the Bluetooth dongle device 100, depending on the transmission / reception of the call signal. The call state is off. When the call state is established, the voice signal is transmitted between the audio processor 112 of the analog DAA 110 and the audio processor 122 of the Bluetooth circuit 120.

Press the Hook switch of the present invention to make an off hook state in order to make a call in an on hook state, and then press a number to make a call using the dial keypad 140 to generate a DTMF generator ( 150), DTMF tones for each number can be generated and the call can be made.

When the Bluetooth headset 600 is a stereo Bluetooth headset, the sound source may be transmitted through the USB communication between the computer 400 and the USB communication unit 124.

4 is a block diagram illustrating a multifunctional communication device using Bluetooth according to another preferred embodiment of the present invention. Hereinafter, with reference to the accompanying Figure 4 will be described in detail with respect to the configuration and function of the multi-function communication device using Bluetooth according to another embodiment of the present invention.

First, the multifunction communication device shown in FIG. 3 is only a master device in a Bluetooth communication network composed of Bluetooth devices such as the multifunction communication device 100, the Bluetooth headset 600, the Bluetooth mobile phone 700 according to the present invention. While configured to operate, the multi-function communication device shown in FIG. 4 is configured to function as a master device or a slave device in a Bluetooth communication network according to a user's operation.

That is, the multi-function communication device 100 according to another embodiment of the present invention supports a master device mode and a slave device mode, and when the power is applied in a general state (no operation), the device is booted into the master device mode. The piconet is configured / operated, and when the power is applied in the state of operating the selector composed of buttons (such as pressing a button), the device boots into slave device mode and participates in the piconet configured / operated by another master device. It acts as a slave device.

In order to perform this function, the multifunction communication device 100 according to the present invention further includes a selection unit (not shown) for outputting a control signal for controlling the master mode / slave mode of the multifunction communication device according to a user's operation. Can be configured. Such a selection unit may be implemented using a known input means such as a button, a keypad, a touch pad, and the like.

Meanwhile, the Bluetooth circuit unit 120 of the multifunction communication device is booted and operated as a master device of the Bluetooth communication network or a slave device of the Bluetooth communication network according to a control signal output from the selection unit. That is, when the user applies power to the multi-function communication device 100 in a state in which the user does not operate the selection unit separately, the Bluetooth circuit unit 120 is booted and operated in the master mode, and the multi-function communication device in the state in which the user operates the selection unit. When the power is applied to the 100, the Bluetooth circuit 120 is booted in the slave mode to operate.

Here, in order to support such a dual mode function (function operated in the master (dongle) mode or slave (headset) mode according to the user's operation), the Bluetooth circuit unit 120 as described above is a master application on one Bluetooth chip. And slave applications are configured in combination, and each application is configured to switch each mode using a role switching function among Bluetooth functions.

Further, more preferably, the audio processing unit 122 in the Bluetooth circuit unit 120 of the multifunction communication device 100 according to the present invention may support the audio input unit (A) 122 to support the master mode / slave mode selection function as described above. -1), an audio input unit (B) 122-2, an audio output unit (A) 122-3, and an audio output unit (B) 122-4.

Here, the audio input unit (A) 122-1 and the audio output unit (A) 122-3 are the audio of the analog DAA 100 when the multifunction communication device 100 is booted in a master mode to operate as a master device. The audio input unit (B) 122-2 and the audio output unit (B) 122-4 are connected to the processor 113 to perform the input / output function of the audio signal. When booted and operated as a slave device, the microphone unit 160 and the speaker unit 170 interlock with each other to perform an input / output function of an audio signal, thereby functioning as a Bluetooth hands-free device.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art will be able to make various modifications, changes and additions within the spirit and scope of the present invention. Additions should be considered to be within the scope of the following claims.

1 is a schematic configuration diagram of a wireless system using a multifunctional communication device using Bluetooth according to an embodiment of the present invention.

Figure 2 is a schematic diagram of a wireless system using a multi-function communication device using Bluetooth according to another preferred embodiment of the present invention.

Figure 3 is a block diagram of a multifunctional communication device using Bluetooth according to an embodiment of the present invention.

Figure 4 is a block diagram of a multifunctional communication device using Bluetooth according to another preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: Multi-function communication device using Bluetooth 200: PSTN network

300: landline phone 400: computer

500: 5V adapter 600: Bluetooth headset

700: Bluetooth Cell Phone

Claims (6)

In the Bluetooth dongle device connected to landline and public telephone network, A dial keypad for receiving a telephone number according to a user's operation; A DTMF generator for generating a DTMF tone corresponding to the number output from the dial keypad and outputting the DTMF tone to an analog data access device; An analog data access device connected to a public telephone network to perform a voice call, output a voice signal input from the public telephone network to a Bluetooth circuit unit, and receive a voice signal output from the Bluetooth circuit unit and output the voice signal to the public telephone network (Analog Data Access). Arrangement); And A Bluetooth circuit unit connected to a Bluetooth headset, transmitting a voice signal output from the analog data connection device to the Bluetooth headset, receiving a voice signal transmitted from the Bluetooth headset, and outputting the voice signal to the analog data connection device; Including, The analog data connection device, A public telephone network call connection unit for controlling a call connection through the public telephone network; An audio processor for outputting a voice signal transmitted through the public telephone network to the Bluetooth circuit unit, and transmitting a voice signal input from the Bluetooth circuit unit through the public telephone network; And A control register for controlling operations of the public telephone network call connection unit and the audio processing unit; Including, The Bluetooth circuit unit, An RF circuit unit for searching for a Bluetooth headset within a communication radius and pairing with the found Bluetooth headset to perform short-range wireless communication; The audio signal transmitted from the analog data connection device is transmitted to the paired Bluetooth headset through the RF circuit unit, and the audio signal transmitted from the paired Bluetooth headset is received through the RF circuit unit and output to the analog data connection device. Processing unit; A data connection device processing unit for transmitting an incoming signal input from the data connection device to a paired Bluetooth headset through the RF circuit unit, and outputting a call signal received from the Bluetooth headset through the RF circuit unit to the data connection device; And A USB communication unit connected to a USB port of a personal computer via a USB cable and receiving an audio signal output from the connected personal computer and transmitting the sound signal to the paired Bluetooth headset through the RF circuit unit; Including; And the USB communication unit receives a control signal transmitted from a paired Bluetooth headset through the RF circuit unit, and outputs the received control signal to a connected personal computer. delete delete delete delete The method of claim 1, Multifunctional communication device using the Bluetooth, Further comprising a selection unit for outputting a control signal for controlling the master mode / slave mode of the multi-function communication device using the Bluetooth according to the user's operation, The multi-function communication device using the Bluetooth is characterized in that the operation as a master device or a slave device of the Bluetooth communication network according to the control signal output from the selector.

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