KR20080050905A - Blutooth system of button type and bluetooth communication method of button type - Google Patents

Abstract

A button type Bluetooth system and a button type Bluetooth communication method are provided to control a connection and configuration of a master/slave connection method by simply manipulating a single button, select an external connection device, and process a connection procedure. A button module(120) generates an interrupt signal differentiated according to a method in which a button operates. A Bluetooth module(110) interprets the interrupt signal, sets connection priority levels of external devices, and sequentially selects the external devices to establish a communication channel with a Bluetooth module of each selected external device. The button module generates the interrupt signal differentiated according to an operation time interval or the number of operations of the button. The Bluetooth module sets a communication channel with a Bluetooth module of an external device according to the first interrupt signal and sets a connection priority level of the set Bluetooth module according to the second interrupt signal. A control unit(114) processes setup functions of both communication channel and connection priority repeatedly according as first and second interrupt signals are repeatedly transmitted to the control unit.

Description

Button type Bluetooth system and button type Bluetooth communication method {Blutooth system of button type and bluetooth communication method of button type}

1 is a diagram illustrating a form in which a button-type Bluetooth system according to an embodiment of the present invention forms a network with an external device equipped with another Bluetooth module.

Figure 2 is a block diagram schematically showing the components of a button-type Bluetooth system according to an embodiment of the present invention.

3 is a view illustrating an external appearance of a headset to which a button-type Bluetooth system according to an embodiment of the present invention is applied.

4 is a view showing the form of a button and a display window of a headset to which a button-type Bluetooth system according to an embodiment of the present invention is applied.

5 is a flowchart illustrating a button-type Bluetooth communication method according to an embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

100: button type Bluetooth system

110: first Bluetooth module 112: high frequency processing unit

113: baseband processing unit 114: control unit

115: memory unit 120: button module

130: speaker module 140: display module

The present invention relates to a Bluetooth system and a Bluetooth communication method.

Currently, mobile communication terminals such as mobile phones, smart phones, and PDAs (Personal Digital Assistants) are generally provided with a single module communication module. Such communication modules include a CDMA module, an infrared module, a Zigbee module, and a Bluetooth ( Bluetooth) module, for example.

Among these communication technologies, interest in Bluetooth communication is particularly focused as one of short-range wireless communication methods. Bluetooth is a communication standard that can transmit and receive data using a frequency of 2.4 GHz band in a short range of about 10 m to 100 m. This communication standard includes a contracted standard for handling crosstalk occurring when the same frequency is used or for identifying between devices.

The Bluetooth has a very wide range of applications, and can be used for connection between a computer and a peripheral device, a mobile communication terminal, headphones, an access card, a venue broadcasting, an instrument control, a handset connection, a local area network, and two-way communication. The range of use is expected to increase in the future due to the advantages such as having a number of devices can be connected.

In general, the Bluetooth module is most commonly used as a point-to-point communication method, but at present, since most of the Bluetooth modules have a master / slave communication function, a wireless connection device or a wireless Bluetooth module is built in. The terminal device can construct a Bluetooth network using a simple point-to-point communication method as well as a more complicated point-to-multipoint communication method.

Existing Bluetooth products in this complicated Bluetooth network have a limit in satisfying the user's desire to handle the establishment and release of the connection between Bluetooth modules on the network more quickly and conveniently.

For example, in the case of a Bluetooth headset, the headset is used for various purposes such as making a call, listening to music, playing a game or watching a movie by selectively connecting to a mobile phone equipped with a Bluetooth module, a PC, an audio system, a game machine, a landline phone, and the like. However, due to the complicated connection interface function, the user has a considerable inconvenience, and even the limitation of the communication module in the Bluetooth headset, that is, the limitation of the number of registered devices, makes it difficult to register and connect again every time. .

In other words, to add a new device to a Bluetooth headset, a setting process must be performed. For example, if a call is received while listening to music, the user directly operates the audio system to stop the operation and switches the headset connection setting to a mobile phone. There is a lot of inconvenience to use, such as having to operate the connect button in turn to find the mobile phone.

In general, the Bluetooth standard is a standard that is designated for use in a mobile environment, and all the information is transmitted through a non-complementary radio medium, which requires an authentication process. Authentication is largely authentication and authorization. divided by (authorization).

Access qualification authentication refers to a device identification process performed between terminals in order to form a network network, and the use authority authentication means that a user of an external device can use the corresponding application program for each application in a state where the connection between the external device and the corresponding device is established. The process of determining whether or not.

That is, when the access qualification is made, the other device is connected with the corresponding device, and then the corresponding application is used through authentication of the right while exchanging packets, and this authentication process is difficult and cumbersome. There is this.

In particular, handling the Bluetooth device itself seems to be a great difficulty for people who are difficult or inexperienced to handle devices such as the handicapped, the elderly, etc., and process the authentication and device identification whenever the device is connected to the Bluetooth network as described above. As a result, it lacks speed and experiences a lot of inconvenience.

In addition, this requires a large amount of computation in the wireless device itself is equipped with a Bluetooth module, there is a problem in that the use of resources efficiently.

In the present invention, a Bluetooth-based network can be selected by a simple operation of an external device equipped with a Bluetooth module, a device-type connection and disconnection procedure, and a button-type Bluetooth that can quickly transmit multimedia data. Provide a system.

The present invention provides a button-type Bluetooth communication method that enables a user to select a Bluetooth connection device already registered in a Bluetooth network through a simple button operation, and to process a connection release procedure and a connection connection procedure with a desired connection device. To provide.

The button-type Bluetooth system according to the present invention relates to a communication system constituting a Bluetooth network with an external device, comprising: a button module for generating a differentiated interrupt signal according to a method in which a button is operated; And a Bluetooth module for interpreting the interrupt signal, setting a connection priority of the external device, sequentially selecting the external device, and establishing a communication channel with a Bluetooth module of the selected external device.

The button-type Bluetooth communication method according to the present invention relates to a communication method for configuring a Bluetooth network with an external device, the method comprising: generating a differentiated interrupt signal according to a method in which a button is operated; Interpreting the interrupt signal to set a connection priority of the external device or select the external device to establish a communication channel with a Bluetooth module of the selected external device; Displaying connection status information of the selected external device when the communication channel is set, or displaying the type of the external device that is set when the connection priority is set; And transmitting and receiving data through the established communication channel when the communication channel is established.

Hereinafter, a button-type Bluetooth system and a button-type Bluetooth communication method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a form in which a button-type Bluetooth system 100 according to an embodiment of the present invention forms a network with external devices 200 to 600 equipped with other Bluetooth modules 210 to 610.

The button-type Bluetooth system 100 according to the present invention relates to a communication system that can configure a Bluetooth network with an external device by simply operating a user interface, and has the following features.

First, various external devices can be selected through the minimized user interface, and communication can be performed by setting a communication channel with a Bluetooth module of the selected external device.

Second, by setting the connection priority of the selected external device after selecting the external device that can be connected (designating only the external device to be connected), it is possible to communicate with the external device more quickly and conveniently in configuring the network thereafter. .

Third, when communication with another external device is required while communicating with a predetermined external device, the connection can be quickly switched by simply operating a user interface.

Fourth, the connection state and priority setting state can be recognized at a time through an audio signal or a video signal as well as simple button operation.

1, the button-type Bluetooth system 100 according to an embodiment of the present invention is a mobile communication terminal 200, a wired telephone 300, a headset 400, a PC (Personal Computer) 500, The external device may be connected to an external device such as an audio device 600, and the external devices are equipped with Bluetooth modules (second Bluetooth module 210 to sixth Bluetooth module 610).

In the embodiment of the present invention, the button-type Bluetooth system 100 is implemented on a headset, and has a first Bluetooth module 110, as mentioned above, the first Bluetooth module 110 through a simple user interface Various functions may be provided, such as selecting and setting other Bluetooth modules of an external device and performing communication.

Hereinafter, various functions provided by the button-type Bluetooth system 100 according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram schematically showing the components of a button-type Bluetooth system 100 according to an embodiment of the present invention, Figure 3 is an appearance of a headset to which the button-type Bluetooth system 100 according to an embodiment of the present invention is applied. Illustrated as an example.

2, the button-type Bluetooth system 100 according to the embodiment of the present invention is largely the first Bluetooth module (hereinafter referred to as "Bluetooth module") 110, speaker module 130, button module 120 and The Bluetooth module 110 includes a display module 140, and the Bluetooth module 110 includes an antenna 111, a high frequency processor 112, a baseband processor 113, a memory 115, and a controller 114.

In addition, the baseband processing unit 113 includes a link management protocol (LMP) unit 113a and a logical link control and adaptation protocol (L2CAP) unit 113b, and the control unit 114 includes a cable replacement protocol (RFCOMM). Section 114a, Point-to-Point Section 114b, Network Section 114c, Object Exchange Protocol (OBEX) Section 114d, AT (Command Processing) Section 114e, TCS Telephony Control And a Protocol Specification Binary (114f) section and a Service Discovery Protocol (SDP) section 114g.

In addition, the button module 120 includes a button 122, a driving circuit 124, and an analog to digital converter (ADC) 126.

Referring to FIG. 3, the external appearance of the headset to which the button-type Bluetooth system 100 is applied is shown. A speaker module 130 is built in a portion closely attached to a user's ear, and a Bluetooth is provided in a housing in which the speaker module 130 is fixed. The module 110, the button module 120, and the display module 140 are mounted.

In addition, the button 122 and the display window are exposed on the outer surface of the housing so that the user can check and manipulate various types of information.

First, the button module 120 will be described with reference to FIG. 2.

The button module 120 is provided with one push button 122 to provide a user interface that is easy to operate.

The button module 120 generates an interrupt signal differentiated according to the method of operating the button 122. For example, when the button 122 is operated briefly once, and operated continuously in short succession, the button module 120 operates once long. In this case, it is possible to generate an interrupt signal that can be combined in various ways depending on the case of long continuous operation.

In the embodiment of the present invention, the button module 120 has the following operation scheme.

First, when the button 122 is operated briefly once, the first interrupt signal is transmitted to the Bluetooth module 110, and the Bluetooth module 110 is externally determined by the access priority information previously stored in the memory 115. Select device to set communication channel.

Here, the state in which the communication channel is set is a process before data communication is performed, and means a process of processing device identification and device authentication.

Second, when the button 122 is operated briefly once, the Bluetooth module 110 sequentially receives the first interrupt signal and sequentially selects an external device according to the connection priority to set a communication channel.

Third, when the button 122, which has been operated briefly once in a row, stops operating, the Bluetooth module 110 communicates through the most recently selected communication channel.

Fourth, when the button 122 is actuated briefly once to transmit the first interrupt signal, and then the button 122 is actuated once long to transmit the second interrupt signal, the Bluetooth module 110 transmits the first interrupt signal. The communication channel of the corresponding external device is set by the controller, and then the connection priority of the external device on which the communication channel is set by the second interrupt signal is adjusted.

In the fourth case, when the external device enters and registers in the communication area of the Bluetooth module 110 for the first time, the Bluetooth module 110 identifies and registers the external device as a device desired by the user for communication.

Accordingly, the user can select and register a desired external device according to the operation method of the button 122 and then adjust the connection priority of the registered external device.

Fifth, when the case where the button 122 is operated briefly once and then operated once again long, that is, when the first interrupt signal and the second interrupt signal are alternately transmitted repeatedly, the Bluetooth module 110 first Select the registered external device or the currently registered external device and adjust the access priority sequentially.

Hereinafter, the button module 120 will be described.

The button 122 includes a switch circuit for generating a signal differentially according to the contact time, and the driving circuit 124 includes a switching transistor, a vibrator, a buffer, and an input routine processing circuit (configuration of the driving circuit 124). Wealth is not shown).

The switching transistor of the driving circuit 124 detects the signal generated from the button, and the vibrator processes the bounce phenomenon.

The buffer temporarily stores the pressed key signal, and the input routine processing module receives and interprets the temporarily stored key signal as a clock signal and generates a differentiated signal according to an operation method.

The ADC 126 converts the signal from the driving circuit 124 into a digital signal and transfers the signal to the controller 114 of the Bluetooth module 110 as an interrupt signal. The button module 120 and the controller 114 For example, may be connected through the I2C line.

Next, the Bluetooth module 110 will be described. The Bluetooth module 110 according to an embodiment of the present invention operates as a master module.

The high frequency processor 112 of the Bluetooth module 110 processes a signal received through the antenna 111 or a signal transmitted from the baseband processor 113 in an RF signal band, and a tuner included in the high frequency processor 112. The stage defines a physical channel of the Bluetooth Radio layer and uses a frequency band of 2.4 GHz to 2.484 GHz.

The baseband processor 113 defines a physical channel of the intermediate frequency band and is in charge of frequency hopping. The baseband processor 113 provides two physical connection methods, and a SCO (Synchronous Connection Oriented) used for data communication and voice communication and an Asynchronous Connection Less (ACL) method mainly used for data communication may be used. have.

The LMP unit 113a of the baseband processor 113 establishes a link between devices equipped with a Bluetooth module and generates security (eg, link, encryption key generation, exchange, check, piconet connection management). And packet size adjustment).

The L2CAP unit 113b plays a multi-communication function, division and combination of data, and abstraction of groups for the protocol stack of the baseband domain.

Meanwhile, the interrupt processor 114h of the controller 114 performs an interrupt detection operation and an interrupt processing operation. When an interrupt signal is transmitted, the interrupt processor 114h detects a transition of the signal and sets corresponding bits of the interrupt wait register and the mask register. To encode the interrupt signal.

At this time, the interrupt signal is encoded and processed into a first interrupt signal and a second interrupt signal.

The SDP unit 114g of the control unit 114 determines the usage by setting a profile of the Bluetooth module, and grasps the type of external device for which the communication channel is set, the type of data transferred between the Bluetooth modules, and the type of application program. Enable Bluetooth communication.

When the encoded interrupt signal is transmitted, the controller 114 analyzes the operation method of the button 122 to set a connection priority of an external device or sequentially select an external device to sequentially select a Bluetooth module of the selected external device. A communication channel is established with the reference numeral 210 to 610.

At this time, the connection priority information of the external device capable of blue communication, as grasped by the SDP unit 114g, is stored in a memory unit (eg, may be provided as an EEPROM (Electrically Erasable Programmable Read-Only Memory)) 115. The controller 114 sequentially sets a communication channel with the Bluetooth module of the external device according to the order as the first interrupt signal is continuously transmitted (this is a kind of device identification process, and the corresponding configuration of the controller 114 is performed. Unit and baseband processing unit 113 is processed in conjunction).

For example, the connection priority stored in the memory unit 115 may be stored in the order of the external device first recognized by the SDP unit 114g.

Thereafter, if the first interrupt signal is not transmitted (the button 122 is stopped, the user is considered to have selected the current external device), and the corresponding component of the controller 114 is operated in the state where the communication channel is set, thereby authenticating the program. The multimedia data (audio data in the embodiment of the present invention) is transmitted through a procedure.

However, when the second interrupt signal is transmitted after the communication channel is established, the controller 114 transmits the information of the external device to which the current communication channel is established (device identified) to the memory unit 115 before processing the transmission of the multimedia data. To adjust the connection priority (if the external device is not already registered in the memory unit 115, the priority is adjusted after initial registration).

Therefore, the controller 114 may repeatedly process the setting function and the connection priority setting function of the communication channel as the first interrupt signal and the second interrupt signal are repeatedly transmitted.

The rest of the components of the controller 114 will be briefly described as follows.

The RFCOMM unit 114a is a component for processing serial transmission such as RS-232C connecting a modem. The RFCOMM unit 114a assists control of RS-232C and data signals on a baseband to a higher protocol requiring a serial transmission function.

The TCS BIN section 114f defines a call control signal for establishing voice or call data between Bluetooth devices. For example, according to the TCS BIN section 114f, as the user makes a call while listening to music by connecting the headset to an audio device, the headset can notify the user by receiving a call control signal from a mobile phone and processing it as a ring tone. The user may operate a button to switch the connected device from the audio device to the mobile phone.

The AT unit 114e controls a mobile communication terminal or modem, and the PPP unit 114b handles one-to-one connection of a Bluetooth device.

In addition, the network unit 114c processes the TCP / UDP / IP packet to enable Internet access and processes the WAP / WAE packet to enable wireless network access.

The OBEX unit 114d may exchange data using a client (master) / server (slave) model.

The display module 140 includes, for example, a display device such as an LED or a small LCD panel, a driving circuit, and displays a type of external device having a connection priority or an external device having a current communication channel.

The speaker module 130 not only reproduces an audio signal as a multimedia data (headset original function) but also displays a type of external device such as the display module 140 or an external device of which a current communication channel is set, such as a warning sound. Can be displayed as a signal.

FIG. 4 is a diagram illustrating a form of a button and a display window of a headset to which the button-type Bluetooth system 100 is applied according to an embodiment of the present invention. According to FIG. 4, the display module 140 has a current priority adjusted. The type of external device, ie, "PC", is displayed and the battery level is displayed.

Hereinafter, a button-type Bluetooth communication method according to an embodiment of the present invention will be described with reference to the accompanying drawings.

5 is a flowchart illustrating a button-type Bluetooth communication method according to an embodiment of the present invention. As shown in FIG. 5, the button-type Bluetooth communication method largely selects an external device to perform communication (hereinafter, referred to as “short button” in S105). Process) and the process of setting the connection priority of the external device (hereinafter referred to as "long button" in S105).

The button-type Bluetooth system 100 according to the present invention has access priority information on an external device which has previously communicated, and is operated based on the access priority when the power is turned on and the use is released again.

For the first time, when the button 122 is operated by the user (S100), the interrupt processor 114h determines whether the button 122 is long pressed (long button operated) or short pressed (short button operated). The method determines whether the first interrupt signal or the second interrupt signal is encoded (S105).

First, the case where the first interrupt signal is continuously encoded will be described.

As the first interrupt signal is continuously transmitted (S110), the controller 114 counts and selects the corresponding external device based on the connection priority information (S115), and the corresponding component of the controller 114 is the baseband processor 113. In conjunction with the selected external device and the communication channel is set.

At this time, the communication channel connection with the other external device is released (S120).

The display module 140 displays the type of the external device for which the current communication channel is set (S125), and the user does not operate the button 122 to confirm the use of the external device.

On the other hand, if it is not the desired external device, it is possible to select another external device by operating the short button again (it is a repetitive process of steps S105 to S125).

In this way, when the external device is selected, the control unit 114 receives the multimedia data (S130) and processes the signal and transmits the signal to the speaker unit 130 to reproduce the audio signal (S145).

On the other hand, the first interrupt signal and the second interrupt signal may be repeatedly transmitted alternately. In this case, the user selects a desired external device by operating the short button once or several times and then operates the long button (“Long button of S105”). ") You can adjust the connection priority of the selected external device.

Through the above-described process, if the communication channel with the external device selected by the short button operation is set and the information of the device is displayed on the display window (assuming that S110 to S125 has already been processed), the user Press (S105) and the control unit 114 adjusts the access priority information by identifying the type of the external device to which the current communication channel is set as the second interrupt signal is transmitted (S135).

The setting information of the external device whose access priority information is adjusted is stored in the memory unit 115, and the stored information is maintained until the priority is adjusted by the next second interrupt signal.

Thereafter, if the button 122 is not operated again, the audio signal of the external device whose access priority information is adjusted is reproduced through the aforementioned steps S115 to S145.

Further, in addition to selecting a predetermined external device and reproducing an audio signal or giving a connection priority to external devices through the above-described process, for example, while receiving and receiving an audio signal from an audio device, a ringing tone is received from a mobile phone. In this case (when the user directly hears the ringing sound of the mobile phone or hears the ringing sound through the speaker using the call function of the Bluetooth), the user may operate the button 122 a few times until the mobile phone is displayed. In addition, the headset according to the embodiment of the present invention can disconnect the audio device and switch the connection to the mobile phone.

In this case, the above-described steps S100 to S145 may be applied as it is.

Although the present invention has been described above with reference to the embodiments, these are only examples and are not intended to limit the present invention, and those skilled in the art to which the present invention pertains may have an abnormality within the scope not departing from the essential characteristics of the present invention. It will be appreciated that various modifications and applications are not illustrated. For example, each component specifically shown in the embodiment of the present invention can be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

According to the button-type Bluetooth system according to the present invention, the user can conveniently and quickly select an external access device to configure a network and share multimedia data without having to go through a complicated device identification and program authentication process.

According to the button-type Bluetooth communication method according to the present invention, it is possible to control the connection configuration of the master / slave connection method by simply operating one button, and immediately check the connection connection status to select an external device and process the connection procedure. It can work.

In addition, according to the present invention, even when using a predetermined external device, there is an effect that it is possible to change the wireless connection connection through a simple button operation and quickly switch to another external device.

Claims (16)

In a communication system constituting a Bluetooth network with an external device, A button module for generating a differentiated interrupt signal according to a method of operating a button; And And a Bluetooth module for interpreting the interrupt signal, setting a connection priority of the external device, and sequentially selecting an external device to establish a communication channel with a Bluetooth module of the selected external device. The method of claim 1, wherein the button module The button-type Bluetooth system for generating the interrupt signal differentiated according to the operation time interval or the number of times of the button. The method of claim 1, wherein the Bluetooth module A button-type Bluetooth system for setting a communication channel with the Bluetooth module of the external device according to the first interrupt signal, and setting the connection priority of the set Bluetooth module according to the second interrupt signal. The method of claim 3, wherein the Bluetooth module As the first interrupt signal and the second interrupt signal are repeatedly transmitted, the setting function of the communication channel and the access priority setting function are repeatedly processed. And a button type Bluetooth system for sequentially setting the access priority according to the order in which the second interrupt signal is transmitted. The method of claim 1, wherein the Bluetooth module When a communication channel is established with the Bluetooth module of the external device, the button type Bluetooth system automatically performs the device identification procedure and the program authentication procedure according to preset information. The method of claim 1, wherein the Bluetooth module The button type Bluetooth system for storing the access priority of the set external device in the storage means, and sequentially selecting the external device using the stored connection priority. The method of claim 1, wherein the Bluetooth module The button type Bluetooth system for storing the access priority of the set external device in the storage means, and maintains the stored access priority information before the next connection priority is set. The method of claim 1, When the Bluetooth module sets the connection priority of the external device or sequentially selects an external device to establish a communication channel with the Bluetooth module of the selected external device, And a display module for displaying at least one of the set connection priority information and the communication channel setting information as a video signal. The method of claim 1, When the Bluetooth module sets the connection priority of the external device or sequentially selects an external device to establish a communication channel with the Bluetooth module of the selected external device, And a speaker module configured to display at least one of the set connection priority information and the communication channel setting information as an audio signal. The method of claim 1, wherein the button module and the Bluetooth module Button type Bluetooth system in headset. The method of claim 1, wherein the Bluetooth module Button type Bluetooth system operated as a master module. In the communication method for configuring a Bluetooth network with an external device, Generating a differentiated interrupt signal according to the manner in which the button is operated; Interpreting the interrupt signal to set a connection priority of the external device or select the external device to establish a communication channel with a Bluetooth module of the selected external device; Displaying connection status information of the selected external device when the communication channel is set, or displaying the type of the external device that is set when the connection priority is set; And And transmitting and receiving data through the set communication channel when the communication channel is set. The method of claim 12, The generating of the interrupt signal may include generating a first interrupt signal or a second interrupt signal according to a method in which the button is operated. The setting of the communication channel may include setting a communication channel with a Bluetooth module of the external device when the first interrupt signal is transmitted, and transmitting the second interrupt signal after the first interrupt signal is transmitted. And setting a connection priority of the set Bluetooth module. The method of claim 13, wherein transmitting and receiving the data The button-type Bluetooth communication method is a step of transmitting and receiving data through the set communication channel when no other interrupt signal is transmitted. The method of claim 13, wherein the establishing of the communication channel comprises: And repeatedly processing the setting function of the communication channel and the connection priority setting function as the first interrupt signal and the second interrupt signal are repeatedly transmitted. The method of claim 12, The generating of the interrupt signal may include generating a first interrupt signal or a second interrupt signal according to a method in which the button is operated. The setting of the communication channel may include setting a communication channel with a Bluetooth module of the selected external device by sequentially selecting an external device according to a preset connection priority as the first interrupt signal is repeatedly transmitted. Button type Bluetooth communication method.

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