KR20070003314A - Method for transmitting and receiving message by using bluetooth protocol at multimedia equipment - Google Patents

Abstract

A message transceiving method of a multimedia apparatus using the Bluetooth protocol is provided to enable the multimedia apparatus including Bluetooth to transceive a message with a mobile communication network by using a message format changing function of a Bluetooth terminal, thus convenience is provided when a user uses a message service. A message of an OBEX(Object Exchange) format written in a multimedia apparatus is received through Bluetooth communication(S410). The OBEX-formatted message is changed into an SMS(Short Messaging Service)/MMS(Multimedia Messaging Service) message format used in a mobile communication network(S420,S430). The message converted into the SMS/MMS message format is transmitted to the mobile communication network(S440).

Description

Method for Transmitting and Receiving Message by Using Bluetooth Protocol at Multimedia Equipment}

1 is a diagram briefly showing a message transmission and reception system in a multimedia device using a Bluetooth terminal according to an embodiment of the present invention;

2 is a view for explaining a method for changing a structure between an OBEX format and an SMS / MMS message format of Bluetooth according to an embodiment of the present invention;

3 is a flowchart illustrating a method of transmitting a message from a multimedia device to a mobile communication network according to an embodiment of the present invention;

4 is a flowchart illustrating a method of displaying a message transmitted through a mobile communication network in a multimedia device according to an embodiment of the present invention;

5 is an exemplary diagram of an interactive service system implemented using message transmission and reception using a multimedia device according to an embodiment of the present invention.

The present invention relates to a message transmission and reception method in a multimedia device using a Bluetooth protocol. More specifically, a multimedia device including Bluetooth transmits and receives a message using a Bluetooth protocol with a Bluetooth terminal, and the Bluetooth terminal moves by changing an OBEX format used in Bluetooth and an SMS / MMS message format in a mobile communication network. The present invention relates to a method for transmitting and receiving a message in a multimedia device using a Bluetooth protocol, which allows a multimedia device including Bluetooth to transmit and receive a message.

BACKGROUND With the rapid development of electronic and communication technologies, various multimedia devices such as digital multimedia broadcasting (DMB) receivers, portable multimedia players (PMPs), notebook computers, personal digital assistants (PDAs), and mobile communication terminals are increasing. Recently, as the electronic technology is advanced, two or more multimedia devices are combined. In particular, anytime, anywhere can freely talk with the other party, and a combination of a mobile communication terminal and other multimedia devices that can receive various information through the wireless Internet. This is mainly done.

In a multimedia device combined with a mobile communication terminal, an interactive service may be provided using a mobile communication network or wireless Internet. However, the screen display unit of the multimedia device combined with the mobile communication terminal generally includes a problem of being limited to the screen size of the mobile communication terminal.

However, the multimedia device separated from the mobile communication terminal has a large screen display and has a lower price than the multimedia device combined with the mobile communication terminal. However, there is a problem that can not receive a bidirectional service using a mobile communication network.

Meanwhile, recently, in providing a broadcast program in satellite broadcasting, DMB broadcasting, wireless broadcasting, terrestrial broadcasting, etc., a user who listens to the broadcasting program is provided in the form of an interactive service so that various additional services can be provided immediately. With the development and provision of additional services using interactive services, the interactive services of multimedia devices are required.

Accordingly, in order to receive a bidirectional service using a multimedia device separated from the mobile communication terminal, communication between the multimedia device and a mobile communication terminal capable of providing a bidirectional service is required. In a method for implementing communication between a multimedia device and a mobile communication terminal, the multimedia device is equipped with Bluetooth, which is a relatively inexpensive short-range wireless communication chip, and the mobile communication terminal is also equipped with Bluetooth. Communication with a mobile communication terminal (hereinafter referred to as a "bluetooth terminal") can be implemented.

However, in the communication between the multimedia device and the Bluetooth terminal, although the existing Bluetooth protocol can be used to transmit voice or data, short messaging service (SMS), which is widely used in current mobile communication systems, is referred to as SMS. ) Messages or multimedia (MMS: Multimedia Messaging Service) messages cannot be sent.

Accordingly, there is a demand for a method of transmitting an SMS message and an MMS message using a multimedia device that provides a large screen and a convenient input method for implementing an interactive service.

In order to solve this problem, a multimedia device including Bluetooth transmits and receives a message using a Bluetooth protocol with a Bluetooth terminal, and the Bluetooth terminal exchanges an OBEX format used in Bluetooth with an SMS / MMS message format in a mobile communication network. The present invention provides a method for transmitting and receiving a message in a multimedia device using a Bluetooth protocol by transmitting and receiving a message to a mobile communication network so as to transmit and receive a message in a multimedia device including Bluetooth.

In order to achieve the above technical problem, the present invention provides a method for transmitting a message created in a multimedia device, the method of transmitting a message created in a multimedia device including Bluetooth to a mobile communication network, (a) created in the multimedia device Receiving an OBEX (OBject EXchange) format message using Bluetooth communication; (b) converting a message in OBEX format into a Short Messanging Service (SMS) / Multimedia Messaging Service (MMS) message format used in a mobile communication network; And (c) transmitting the message converted into the SMS / MMS message format to the mobile communication network.

In addition, in order to achieve the second technical problem, the present invention, as a message display method using a multimedia device, in a method for displaying a message received from a mobile terminal by a Bluetooth terminal using a multimedia device including Bluetooth, (a) receiving a message from a mobile communication network; (b) confirming whether a multimedia device on which the display of the message is set exists; (c) converting a message received from the mobile communication network into an OBEX (OBject EXchange) format when the existence of the multimedia device on which the display of the message is set is confirmed; And (d) transmitting and displaying the message converted into the OBEX format to the multimedia device through Bluetooth communication.

In order to achieve the third technical problem, the present invention provides a Bluetooth terminal for transmitting a message between a multimedia device including Bluetooth and a mobile communication network, wherein the message is in an OBEX (OBject EXchange) format through Bluetooth communication with the multimedia device. Bluetooth communication module for transmitting and receiving; A mobile communication module for transmitting and receiving a message in a Short Messanging Service (SMS) / Multimedia Messaging Service (MMS) format with a mobile communication network; And a message format conversion module for switching between an OBEX format and the SMS / MMS format.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a diagram briefly showing a message transmission and reception system in a multimedia device using a Bluetooth terminal according to an embodiment of the present invention.

A message transmission and reception system in a multimedia device using a Bluetooth terminal includes a mobile communication network 110, a Bluetooth terminal 120, and a multimedia device 130 for transmitting and receiving messages.

The mobile communication network 110 includes a switch 112 that is responsible for call and data processing between a plurality of mobile communication terminals, a message center 114 that generates, stores, or forwards SMS / MMS messages, and a plurality of base station transmitters 118. A base station controller 116 and a Bluetooth terminal 120 to control and a base station transmitter 118 for transmitting and receiving call and data signals with a plurality of mobile communication terminals.

The Bluetooth terminal 120 receives a mobile communication service from the mobile communication network 110 and is a terminal that transmits and receives data with various multimedia devices 130 through Bluetooth.

To this end, the mobile communication terminal 120 includes a mobile communication module 122 for communication with the mobile communication network 110, a Bluetooth communication module 124 for Bluetooth communication with the multimedia device 130 including Bluetooth, and the present invention. Accordingly, the Bluetooth terminal 120 includes a message format conversion module 126 and a mobile communication network equipped with OBEX format conversion software for changing an OBEX (OBject EXchange) format used in Bluetooth and an SMS / MMS message format used in a mobile communication network. 110 and an antenna 128 for transmitting and receiving data to and from the multimedia device 130.

Here, OBEX is a protocol stack used for object exchange in Bluetooth, and its structure will be described in detail with reference to FIG. 2.

The multimedia device 130 has a built-in Bluetooth and does not include a mobile communication module, and refers to a device having a multimedia providing function such as a DMB receiver, a TV, a computer, a laptop, a PDA, and the like using a Bluetooth protocol. It also includes a remote control to control. The multimedia device 130 performs Bluetooth communication with the Bluetooth terminal 120 or another multimedia device using the Bluetooth protocol of OBEX. In addition, the multimedia device 130 according to the present invention displays an SMS / MMS message transmitted through the Bluetooth terminal 120, and includes a function of creating an SMS / MMS message to be transmitted to the mobile communication network. To this end, the multimedia apparatus may include a key button or a touch panel for inputting letters or numbers. In addition, it may include a platform, such as Wi-Fi or a swap browser for interworking with the Bluetooth terminal 120.

When the SMS / MMS message is created using the multimedia device 130, an SMS / MMS message written to the Bluetooth terminal 120 is transmitted through Bluetooth communication, and the Bluetooth terminal 120 receives the received SMS / MMS message. After processing, the data is transmitted to the message center 114 of the mobile communication network 110.

In addition, when the SMS / MMS message is transmitted from the message center 114 to the Bluetooth terminal 120 through the mobile communication network 110, the multimedia device 130 receives the SMS / MMS message from the Bluetooth terminal 120 through Bluetooth communication. Receive and display.

A method of transmitting and receiving a message in the multimedia device 130 will be described in detail with reference to FIGS. 3 and 4.

2 is a diagram illustrating a method of changing a structure between an OBEX format and an SMS / MMS message format of Bluetooth according to an embodiment of the present invention.

The OBEX of the Bluetooth protocol used in the Bluetooth communication is divided into an access code unit 210 and a header unit 220.

The access code unit 210 performs functions such as synchronization, DC offset compensation, and identification, and is used for a procedure for calling or responding to another Bluetooth device.

The header unit 220 is a part for transmitting information and data about an object transmitted through Bluetooth communication, and includes a type display unit 222, a length display unit 224, a target display unit 226, an HTTP display unit 228, and a Body ( 230) and End of Body (232).

The type display unit 222 is a part for displaying the type (control signal, status signal, data transmission, etc.) of the signal transmitted through the Bluetooth protocol, the length display unit 224 is a part for displaying the length information of the transmitted signal, The target display unit 226 is a portion that contains the unique Bluetooth address of the Bluetooth device to be transmitted, the HTTP display unit 228 is a portion where the 48-bit Bluetooth address set in the Bluetooth device is displayed, the body 230 and End of Body 232 is a portion that contains the data to be transmitted.

On the other hand, the SMS / MMS message format used for transmitting and receiving SMS messages or MMS messages in the mobile communication network 110 includes a message type field, a teleservice identifier field, a destination address field, a call number field, and a transmission data field. .

The message type field indicates whether the message being transmitted is one-to-one, one-to-many, or reply message, and the Teleservice Identifier (TID) field indicates the type of message to be transmitted ( Text message, call message, voice message, video message, etc.). The called address field is the part containing the phone number of the mobile communication terminal to be received, the call number field is the part including the phone number of the mobile communication terminal that sends the message, and the transmission data field is the content of the transmitted message, picture or video. This is the part containing data.

Here, although the SMS message is generally standardized to 80 bytes, since the size of the MMS message is not limited, when the MMS message is transmitted, a data size display unit for displaying the size of the message is included. In addition, when a subject is set in the transmitted SMS / MMS message, a separate subject field may be included.

As described above, since the OBEX format used in the Bluetooth communication and the SMS / MMS message format used in the mobile communication network are different in structure, the multimedia device 120 including the Bluetooth message is transmitted from the multimedia device 120 to the mobile communication network 110 according to the present invention. In the case of transmitting a message, a process of changing a component of the header unit 220 of the OBEX format of Bluetooth to an SMS / MMS message format structure in the mobile communication network 110 is required.

First, in the multimedia device 130, a message prepared for transmission to a mobile communication network should be set in an OBEX format.

Accordingly, the type display unit 222 of the OBEX format is set to include information on what type of message the created SMS / MMS message should be transmitted in the mobile communication network, and the length display unit 224 may include the length of the message or the data. Set to include the size information.

In addition, the target display unit 226 is set to include the phone number of the mobile communication terminal to transmit the SMS / MMS message created in the multimedia device, and the HTTP display unit 228 is set to the telephone number (Call-Back) to be contacted. In addition, the HTTP display unit 228 may be set to include the subject of the message to be transmitted.

The body 230 and the end of body 232 are set to include data of a message to be transmitted and data such as a voice, a picture, and a video.

When the message of the OBEX format set as described above is transmitted to the Bluetooth terminal 120, the Bluetooth terminal 120 should change the received OBEX format message to the SMS / MMS message format for transmission to the mobile communication network.

Accordingly, the type display unit 222 of the OBEX format is changed to a message type field and a teleservice identifier field indicating the type of the message to be transmitted, and the length display unit 224 of the OBEX format is converted into a data size display unit, and the target display unit 226 converts to the destination address field.

Then, the telephone number to be contacted included in the HTTP display unit 228 is converted into a call number field. In this case, when the HTTP display unit 228 includes a subject of a message to be transmitted, the subject of the message is converted into a subject field. .

In addition, the data included in the body 230 and the end of body 232 is mounted in the transmission data field to change the message in the OBEX format into the SMS / MMS message format.

On the other hand, the multimedia device 120 including Bluetooth converts the transmitted SMS / MMS message format structure to the OBEX format used in Bluetooth in order to receive the SMS message or MMS message transmitted from the mobile communication network 110 need.

The process of converting the SMS / MMS message format to the OBEX format is similar to the process of converting the OBEX format to the SMS / MMS message format described above.

The contents of the message type field and the TID field of the SMS / MMS message are converted to the type display unit 222 when converted to the OBEX format. In addition, if the MMS message is transmitted from the mobile communication network, and there is a data size display unit including the size information of the message, the contents of the data size display unit are converted into the length display unit 224 of the OBEX format and stored.

The called terminal number in the called address field is set to be included in the target display unit 226, and the telephone number to be contacted in the call number field is converted into the HTTP display unit 228 and stored. At this time, if a subject is included in the transmitted SMS / MMS message, the subject is also included in the HTTP display unit 228 and converted.

Message contents or data files transmitted through SMS / MMS messages are stored in the body 230 and the end of body 232 according to their size.

As described above, in order to implement the present invention, the structure change operation between the OBEX format in the Bluetooth communication and the SMS / MMS message format in the mobile communication network is preferably performed in the Bluetooth terminal 120. It should be equipped with OBEX format conversion software to convert between OBEX format and SMS / MMS format.

The conversion method between the OBEX format and the SMS / MMS message format described above is just one example. The subject field is included in the body 230 and the transmitted message content and data are included in the end of body 232. Various modifications are possible.

3 is a flowchart illustrating a method for transmitting a message from a multimedia device to a mobile communication network according to an exemplary embodiment of the present invention.

First, a user who wants to send a message to a mobile communication network writes a message using the multimedia device 130. The user may create an SMS message including only the contents of the message, or may create an MMS message including a picture, a picture, a music, or a video. At this time, the SMS message or MMS message generated by the multimedia device 130 is written in OBEX format and mounted on the Bluetooth header unit 220. That is, the contents of the created message are stored in the body 230 and the end of body 232, and the called terminal number is stored in the target display unit 226. At this time, the message type and the message length are automatically set and stored in the type display unit 222 and the length display unit 224, the title and the telephone number to be contacted are stored in the HTTP display unit 2280. At this time, the user may omit input of the title and the telephone number (S310).

When the SMS / MMS message is created, the multimedia device 130 transmits the message written to the Bluetooth terminal 120 using the Bluetooth protocol (S320).

The Bluetooth terminal 120 receiving the OBEX format message from the multimedia device 130 converts the SMS / MMS message format to be used in the mobile communication network using the installed OBEX format conversion software. In this case, when the user does not enter a phone number to contact in step S310, the phone number of the Bluetooth terminal 120 may be set to be input in the call number field (S330).

When the Bluetooth terminal 120 converts the SMS / MMS message format of the mobile communication network, the converted message is transmitted to the mobile communication network 110 (S340).

4 is a flowchart illustrating a method of displaying a message transmitted through a mobile communication network in a multimedia device according to an exemplary embodiment of the present invention.

When the Bluetooth terminal 120 receives the SMS / MMS message from the message center 114 of the mobile communication network 110 (S410), it is checked whether or not there is a multimedia device 130 in which the display of the received SMS / MMS message is set. . In order to display the received SMS / MMS message through the multimedia device 130, the user must set the multimedia device 130 to display the SMS / MMS message in advance.

Setting of the multimedia device 130 is preferably performed in the Bluetooth terminal 120. If the user selects a menu for setting an SMS / MMS message display on the multimedia device 130 among various menus mounted on the Bluetooth terminal 120, the Bluetooth terminal 120 is connected to a plurality of multimedia devices via Bluetooth. A list of the devices 130 is displayed, and the user selects a multimedia device for which the received SMS / MMS message is to be displayed from among the displayed multimedia devices. In this case, the user may select two or more multimedia devices, and set to allow the user to check SMS / MMS messages received through the plurality of multimedia devices (S420).

When the multimedia device 130 is configured to display the SMS / MMS message, the Bluetooth terminal 120 converts the SMS / MMS message received from the mobile communication network 110 into the OBEX format for Bluetooth communication using the OBEX format conversion software. The conversion is made (S430).

When the conversion to the OBEX format is completed, the Bluetooth terminal 120 transmits the converted OBEX format message to the multimedia device by using the Bluetooth communication (S440), the multimedia device 130 receiving the OBEX format message is received The message is displayed (S450).

Here, in step S420, when the multimedia device for displaying the SMS / MMS message is not set, or when the communication with the multimedia device is set to display the SMS / MMS message is not available, the mobile communication network in the Bluetooth terminal 120 The SMS / MMS message received from the display is displayed (S460).

As described above, various additional services can be implemented by using a method of transmitting and receiving a message using the multimedia apparatus described with reference to FIGS. 3 and 4.

5 is an exemplary diagram of an interactive service system implemented using message transmission and reception using a multimedia device according to an embodiment of the present invention.

Here, the interactive service system according to the present invention can be implemented in various information providing systems such as DMB broadcasting, airwave broadcasting, satellite broadcasting, internet broadcasting, web pages of the Internet, etc. In describing the interactive service system according to FIG. 5, A description will be given based on the information providing system through DMB broadcasting.

The DMB broadcasting station 510 generates DMB broadcasting contents for the interactive service and transmits the DMB broadcasting contents to the plurality of DMB service subscribers through the transmitter 520. At this time, the DMB broadcasting content is composed of audio data, video data, and link information data including URL information for an interactive service.

The DMB receiver 530 that receives the DMB broadcast content from the transmitter 520 displays the DBM broadcast. Here, the DMB receiver 530 according to the present invention includes a Bluetooth module therein, and is a receiver capable of Bluetooth communication with the Bluetooth terminal 120.

If a user wants to provide additional services such as shopping for goods on the air, downloading broadcast contents (eg, MP3, movie, etc.), obtaining information (eg, weather, traffic conditions, etc.) while watching a DMB broadcast, The receiver 530 creates an SMS message or an MMS message. At this time, the URL information by the link information data transmitted through the DMB broadcasting content may be included in the message to be created.

The SMS / MMS message written in the DMB receiver 530 is written in the OBEX format of Bluetooth, and the created SMS / MMS message is transmitted to the Bluetooth terminal 120 through Bluetooth communication.

The Bluetooth terminal 120 converts the received OBEX format SMS / MMS message into the SMS / MMS message format in the mobile communication network using the OBEX format conversion software and transmits the received message to the mobile communication network 110 using the RF signal.

The SMS / MMS message transmitted from the Bluetooth terminal 120 is transmitted to the message center 114 via the wireless base stations 116 and 118 and the switch 112, and the SMS / MMS message processed by the message center 114 is bidirectional. Transmit to service server 540.

The bidirectional service server 540 requests service provision to the additional service server 550 that provides the requested service through an SMS / MMS message, and transmits the additional service data from the additional service server 550 using a mobile communication network. Provided to the terminal 120.

At this time, if the supplementary service data provided to the Bluetooth terminal 120 is transmitted in the form of SMS / MMS message, the Bluetooth terminal 120 may display the provided SMS / MMS message through the DMB receiver 530. At this time, the Bluetooth terminal 120 changes the SMS / MMS message format to the OBEX format.

In this manner, an interactive service system can be realized by changing a message format between the multimedia device 130 and the Bluetooth terminal 120.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

As described above, according to the present invention, as a multimedia device including Bluetooth can transmit and receive a message with a mobile communication network using a message format change function of a Bluetooth terminal, a large screen and a convenient input provided by the multimedia device are provided. The message transmission and reception through the method provides the user with convenience in using the message service.

In addition, while the user is using the multimedia device, the user can immediately check the received message and can immediately respond to the received message, so that quick communication between the message senders and receivers is achieved.

Claims (13)

In a method for transmitting a message written in a multimedia device including Bluetooth to a mobile communication network, (a) receiving an OBEX (OBject EXchange) format message generated by the multimedia device using Bluetooth communication; converting the OBEX format message into a Short Messanging Service (SMS) / MMS (Multimedia Messaging Service) message format used in the mobile communication network; And (c) transmitting the message converted into the SMS / MMS message format to the mobile communication network; Method of transmitting a message created in a multimedia device comprising a. According to claim 1, wherein step (a) is, In the multimedia apparatus, the transmission type of the message set in the type display unit of the header unit, the length or data size of the message set in the length display unit, the telephone number of the mobile communication terminal to transmit the message set in the target display unit, and the body and end. and a message in the OBEX format including the content of the message set in the Body. The method of claim 2, wherein the header portion, HTTP display including the subject of the message and the telephone number to be contacted Method of transmitting a message created in the multimedia device further comprising a. The method of claim 2, wherein step (b) comprises: The type indicator of the OBEX format is a message type field and a teleservice identifier (TID) field of the SMS / MMS message format, the length indicator is a data size indicator, the target indicator is a destination address field, Body and End of Body is a method of transmitting a message created in a multimedia device, characterized in that each converted into a transmission data field. The method of claim 3, wherein step (b) comprises: The subject of the message included in the HTTP display unit is a subject field of the SMS / MMS message format, and the telephone number to be contacted is converted into a call number field, respectively. The method of claim 3, wherein step (b) comprises: If the phone number to be contacted is not included in the HTTP display unit, when the phone number field is converted into the call number field, the phone number of the Bluetooth terminal is inserted into the phone number to be contacted. Way. A method for displaying a message received from a mobile terminal by a Bluetooth terminal using a multimedia device including Bluetooth, the method comprising: (a) receiving a message from the mobile communication network; (b) confirming whether a multimedia device on which the display of the message is set exists; (c) converting a message received from the mobile communication network into an OBEX (OBject EXchange) format when the existence of the multimedia device in which the display of the message is set is confirmed; And (d) transmitting and displaying the message converted into the OBEX format to the multimedia device through Bluetooth communication; Message display method using a multimedia device comprising a. The method of claim 7, wherein step (b), If the multimedia device to which the display of the received message is set does not exist or the communication with the multimedia device to which the display of the received message is set is not possible, the Bluetooth terminal displays a message received from the mobile communication network. Message display method using a multimedia device. The method of claim 7, wherein step (b), (A) selecting a display setting menu of the message from various menus of the Bluetooth terminal; (B) displaying a list of one or more multimedia devices capable of Bluetooth communication with the Bluetooth terminal; And (C) selecting a multimedia device for displaying the received message from the list of multimedia devices; The message display method using the multimedia device, characterized in that for setting the multimedia device to execute the display of the received message. The method of claim 9, If at least two multimedia devices are selected from the list of multimedia devices in step (c), step (d)  The Bluetooth terminal transmits all the messages in the OBEX format to the two or more multimedia devices, the message display method using the multimedia device, characterized in that the two or more multimedia devices are displayed. The method of claim 7, wherein step (c) is In an SMS / MMS format message received through the mobile communication network, The message type field and the teleservice identifier field indicating the type of the message may include a type display unit of the OBEX format; The destination address field including the telephone number of the mobile communication terminal receiving the message is a target display unit of the OBEX format. The call number field including the telephone number of the mobile communication terminal that transmitted the message is an HTTP display unit of the OBEX format. The transmission data field including the content or data of the message is a body and an end of body of the OBEX format. Message display method using a multimedia device, characterized in that each converted. 12. The method of claim 11, wherein when the message of the SMS / MMS format received through the mobile communication network includes the subject of the message and the size of the message, The subject field including the subject of the message is converted from the OBEX format to the HTTP display unit, and the data size display unit including the size information of the message is converted into the length display unit of the OBEX format. How to display messages. In a Bluetooth terminal for transmitting a message between a multimedia device including Bluetooth and a mobile communication network, A Bluetooth communication module for transmitting and receiving a message in an OBEX (OBject EXchange) format through Bluetooth communication with the multimedia device; A mobile communication module for transmitting and receiving a message in a Short Messanging Service (SMS) / Multimedia Messaging Service (MMS) format with the mobile communication network; And Message format conversion module for switching between the OBEX format and the SMS / MMS format Bluetooth terminal comprising a.

Images