KR20090063459A - Authentication method using short-range communication and terminal and system using the same - Google Patents

Abstract

An authentication method using local wireless communication is provided to secure the connection between devices without a time delay by detecting a unique address from an authentication code and using the detected unique address. An authentication code of a bluetooth device is obtained(S310). The connection with the bluetooth device is tried by using address information of the authentication code(S320). Whether the connection between the bluetooth devices is determined(S330). If the bluetooth is connected, the device with the address information transmitted from the mobile communication terminal is connected(S340). If the bluetooth device is not connected, the bluetooth device is inquired by performing the page process and the inquiry process(S350). The searched device is displayed in a list. The selected one in the list is connected to the bluetooth(S360).

Description

Authentication method using short-range communication and terminal and system using the same}

The present invention relates to an authentication method using near field communication and a terminal and a system using the same.

Bluetooth, a representative technology of short-range wireless communication technology, is a short-range wireless communication technology standard developed to enable free wireless communication between various devices in a relatively small area (10-100m) with low cost and low power consumption.

The short-range wireless communication technology, such as Bluetooth, was originally started for the purpose of wirelessly replacing a complicated cable, but wirelessly transmits and receives multimedia data between an increasing number of personal portable digital devices, personal mobile communication devices, and computers. It is evolving into a technology that makes it possible.

In particular, it uses a frequency band that does not require a wireless license, and does not have to pay royalties according to the open license policy, and is flexibly connected to IrDA and IEEE802.11b to digest various protocols. What you can do is a feature of Bluetooth.

This Bluetooth technology is mainly used for transmitting / receiving data between various devices in a short distance, similar to the infrared communication standard IrDA commonly adopted in a headset, a printer, a digital camera, and the like. It is used.

Meanwhile, in order for Bluetooth devices to access each other, an inquiry process, an inquiry scan process, a page process, and the like must be performed. The process for accessing takes a lot of time. If it is not inquired, a problem occurs that more time is consumed for the connection, such as performing the inquiry process again.

In addition, due to the nature of functions such as headsets, devices that do not require encryption or authentication do not violate the Bluetooth protocol even if they do not provide an authentication function, but when other people try to connect through a Bluetooth device when using the device in a public place, etc. The problem arises that it cannot be prevented.

It is an object of the present invention to provide an authentication method using short range wireless communication and a terminal and a system using the same, which enable reliable connection between specific devices using unique addresses between short range wireless communication devices such as Bluetooth.

According to an embodiment of the present invention, an authentication method using short-range wireless communication may include: obtaining an authentication code of a short-range wireless communication device and detecting address information; And connecting to the device having the detected address information by short-range wireless communication.

In addition, the terminal according to an embodiment of the present invention, the wireless transceiver for downloading the authentication code of the short-range wireless communication device; A camera for photographing and obtaining an authentication code of a short range wireless communication device; A Bluetooth module that detects address information from the authentication code and attempts to connect by short-range wireless communication; And a controller configured to control a short-range wireless communication connection process by using the address information detected by the authentication code.

In addition, the system according to an embodiment of the present invention, the first Bluetooth device to obtain a verification code by the photographing means and to detect the address information to attempt a short-range wireless communication connection; And a second Bluetooth device that provides address information for a short-range wireless communication connection as an authentication code and is connected with a first Bluetooth device that attempts to connect with the address information.

According to an authentication method using short-range wireless communication and a terminal and a system using the same according to the present invention, by detecting a unique address of a Bluetooth device from an authentication code and attempting to connect using the detected unique address, the device can be accurately connected with a desired device without time delay. There is an effect that can guarantee a reliable inter-device connection that the connection is performed.

In addition, the present invention can be connected to a desired device even if there are several Bluetooth devices in the vicinity by attempting to connect using the unique address of the Bluetooth device, and does not perform an inquiry process and an inquiry scan process. Since the unique address of the Bluetooth device is not exposed, it is possible to block access attempts from external devices that are unknown in public places.

In addition, the present invention has the effect of increasing the added value of the product by providing a function that is differentiated from other products that can obtain and connect to the unique address of the Bluetooth device through the authentication code.

According to an embodiment of the present invention, an authentication method using short-range wireless communication may include: obtaining an authentication code of a short-range wireless communication device and detecting address information; And connecting the device having the detected address information with short-range wireless communication.

In the present invention, the authentication code is a code indicating a unique address of a short-range wireless communication device including a predetermined number, letters, one-dimensional barcode, two-dimensional barcode, special symbol mark.

In the present invention, the connection to the short range wireless communication may be performed by omitting an inquiry process and performing a page process using the detected address.

In the present invention, when the short-range wireless communication between devices is not connected through the page process, the page process is terminated and an inquiries process is performed to attempt connection.

In the present invention, the authentication code is obtained by acquiring through the photographing means or by downloading from the server.

In addition, the terminal according to an embodiment of the present invention, the wireless transceiver for downloading the authentication code of the short-range wireless communication device; A camera for photographing and obtaining an authentication code of a short range wireless communication device; A Bluetooth module that detects address information from the authentication code and attempts to connect by short-range wireless communication; And a controller configured to control a short-range wireless communication connection process by using the address information detected by the authentication code.

In the present invention, the control unit is characterized in that the control to be performed by the page scan to skip the inquiry process when attempting to connect using the address information.

In the present invention, the control unit attempts to connect through a page process using address information, and if it is not connected for a predetermined time, terminates the page process and performs an inquiries process, characterized in that it controls to inquire and connect to a Bluetooth device. .

In addition, the system according to an embodiment of the present invention, the first Bluetooth device to obtain a verification code by the photographing means and to detect the address information to attempt a short-range wireless communication connection; And a second Bluetooth device that provides address information for a short-range wireless communication connection as an authentication code and is connected with a first Bluetooth device that attempts to connect with the address information.

In the present invention, the server for providing the authentication code to be obtained by downloading in the first Bluetooth device; characterized in that it further comprises.

In the present invention, the authentication code is a code indicating a unique address including a predetermined number, letters, one-dimensional barcode, two-dimensional barcode, special symbol mark.

In the present invention, Bluetooth is described as an example of short-range wireless communication, but the present invention is not limited thereto.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a diagram illustrating a mobile communication device and a Bluetooth device as a system for a Bluetooth connection according to an embodiment of the present invention.

Referring to FIG. 1A, a first Bluetooth device 110 and a second Bluetooth device 120 for a Bluetooth connection are configured, and the first Bluetooth device, the second Bluetooth device may be a mobile communication terminal, a laptop, Printer, headset, and the like.

In addition, the first Bluetooth device 110 and the second Bluetooth device 120 may include a man-machine interface (MMI) means capable of requesting authentication, such as personal ID, password, etc., the connection between the mobile communication terminal and the headset As in the case, man-machine interface (MMI) means may be included in either side.

First, a description will be given of a connection process using Bluetooth. When a first Bluetooth device searches for a second Bluetooth device in the vicinity according to a user's device search command, an Inquiry message is transmitted to the surroundings.

In this case, the first Bluetooth device 110 transmits an inquiry message through a general inquiry access code (GIAC) while inquiring a response from all the second Bluetooth devices 120 that are performing an inquiry scan to the GIAC. As a result, a frequency hopping synchronization (FHS) packet including a unique device address (BD_ADDR) and clock information thereof is received.

The first Bluetooth device 110 searches for a neighboring second Bluetooth device 120 in response to its own inquiry message through the received FHS packet, and displays a list of the searched second Bluetooth device 120 on the screen. Mark on.

In addition, when the first Bluetooth device 110 receives one of the list of the second Bluetooth devices 120 displayed on the screen from the user, and a registration command for the selected device is input, the first Bluetooth device 110 passes the pass key to the user. You are asked to enter a value.

The user may input an arbitrary value as a passkey value, and the first Bluetooth device 110 transmits the input passkey value to the second Bluetooth device 120 selected by the user together with its registration information and registers the device. Ask.

Then, as in the first Bluetooth device 110, the second Bluetooth device 120, which has been requested to register, requests its user to input a passkey value, and the passkey value input by the user is the first Bluetooth device. If the passkey value received from 110 is the same as each other, while the user authentication is completed between the two devices, the second Bluetooth device 120 registers the registration information for the first Bluetooth device 110, and The registration information is transmitted to the first Bluetooth device 110.

In this case, when the second Bluetooth device is a device without MMI means such as a headset, a communication connection can be made without an authentication process.

On the other hand, when the passkey value input by the user and the passkey value received from the first Bluetooth device 110 are not the same, the second Bluetooth device 120 fails to register the device with the first Bluetooth device 110. A notification signal is sent to notify that device registration has failed.

The first Bluetooth device 110 registers the second Bluetooth device through registration information transmitted from the second Bluetooth device 120 requesting registration, and the user inputs a communication command with the registered second Bluetooth device. In this case, when the user authentication process is successfully completed by performing a user authentication process by inputting a passkey value of the second Bluetooth device and the user, a communication connection may be formed.

That is, as described above, the Bluetooth device has an inquiry process for searching a device for Bluetooth, an inquiry scan process for searching whether there is a device in question among peripheral devices, and a call to the device if desired. The page process is performed.

The present invention proposes a method for easily connecting communication between Bluetooth devices without time delay in the above process.

That is, the present invention obtains an authentication code of a device to be connected, detects address information, and attempts a communication connection using the address information.

Referring to FIG. 1B, a first Bluetooth device 110 such as a mobile communication terminal which acquires address information BD_ADDR by photographing a bar code with a camera or the like, and a headset that provides its address information as an authentication code 140; It comprises a second Bluetooth device 120 such as a notebook, and the server 130 for storing the address information as a bar code.

First, the first Bluetooth device 110 detects the unique address BD_ADDR of the second Bluetooth device 120 to be connected from the authentication code.

Here, the authentication code is a code indicating the unique address of the Bluetooth device including a preset number, letters, one-dimensional barcode, two-dimensional barcode, special symbol mark, etc., the unique address of the product and product model name through the authentication code Can be detected. In addition, the model name of the product may be determined using the unique address.

For example, an authentication code such as a barcode may be attached to a product in the case of a headset or printed and provided on a product manual, and may be provided to be displayed on a screen in the case of a notebook.

At this time, the first Bluetooth device 110 detects a unique address of the second Bluetooth device 120 by taking a picture of the authentication code through a camera or the like.

In addition, the first Bluetooth device 110 may download the authentication code corresponding to the unique address of the second Bluetooth device 120 to connect to the server 130 to connect.

That is, the server 130 provides a corresponding model name according to a product classification of a headset, a notebook, etc. in a list, and transmits an authentication code having a unique address according to the selected model name.

In this case, the Bluetooth device that provides the authentication code as a unique address goes directly to the page scanning process without going through the inquiry process or the inquiry scan process, and receives a radio wave according to the Bluetooth protocol through its address (BD_ADDR) and requests a connection. Search for existence.

For example, when the user turns on the headset, the headset enters the page scan process immediately after the power is turned on without receiving an inquiry or inquiry scan and receives a radio wave through its address (BD_ADDR) according to the Bluetooth protocol. Search for the required device.

In addition, the mobile terminal forcibly performs the page process by using the unique address BD_ADDR of the product detected from the obtained authentication code.

For example, the mobile communication terminal waits for a packet transmitted from the device while transmitting a packet for finding a device having the address information BD_ADDR detected in the barcode.

If the headset receives a page packet containing its address (BD_ADDR), and sends a response packet to it, the two devices can make a successful connection for the first time and store each other's information in a nonvolatile storage device such as flash memory. It is possible to authenticate each other continuously by pairing.

Here, if no device is detected during the page scan process for a predetermined time, the mobile communication terminal and the headset terminate the page scan process and perform an inquiry process and an inquiry scan process.

As described above, the present invention detects a unique address of a Bluetooth device from an authentication code and attempts to connect using the detected unique address, thereby ensuring a reliable device-to-device connection that is accurately connected with a desired device without time delay. There is.

In addition, the present invention can be connected to a desired device even if there are several Bluetooth devices in the vicinity by attempting to connect using the unique address of the Bluetooth device, and does not perform an inquiry process and an inquiry scan process. Since the unique address of the Bluetooth device is not exposed, it is possible to block access attempts from external devices that are unknown in public places.

In addition, the present invention has the effect of increasing the added value of the product by providing a function that is differentiated from other products that can obtain and connect to the unique address of the Bluetooth device through the authentication code.

2 is a diagram illustrating a configuration of a mobile communication terminal according to an embodiment of the present invention.

2, a key input unit 210 for selecting a Bluetooth connection menu; A wireless transceiver 220 for transmitting and receiving an authentication code to detect address information BD_ADDR for a Bluetooth connection; A camera 230 photographing an authentication code to obtain address information; A memory 240 for storing the authentication code; A Bluetooth module 250 that recognizes the received authentication code and detects address information and attempts a Bluetooth connection; A display unit 260 for displaying a menu for Bluetooth connection; And a controller 270 for controlling a short range wireless communication connection process by using the address information detected by the authentication code.

The key input unit 210 is used as an input means for providing a user interface of a mobile communication terminal and selecting various menus for attempting a Bluetooth connection.

The wireless transmitting and receiving unit 220 receives the address information of the device to be Bluetooth-connected from the server as an authentication code, and transmits and receives a radio signal with a mobile communication network including a base station and an exchange station so as to perform a basic mobile terminal communication function. Function.

In addition, the authentication code received through the wireless transceiver 220 may be transmitted to another terminal.

Here, the authentication code is a code indicating the unique address of the Bluetooth device including a predetermined number, letters, one-dimensional bar code, two-dimensional bar code, special symbol mark, etc., and detects the unique address and product name of the product through the authentication code. can do. In addition, the product name may be determined using the unique address.

The camera 230 photographs an authentication code attached to a Bluetooth product or provided through a product description, for example, photographs a barcode attached to a headset, and the photographed authentication code is stored in the memory 240.

The Bluetooth module 250 detects address information from an authentication code captured by the camera 230 or an authentication code received from a server, and attempts to connect between Bluetooth devices using the address information.

For example, the authentication code is recognized and converted into address information, and the connection between the Bluetooth devices is attempted using the address information.

The display unit 260 displays a menu for attempting a Bluetooth connection. For example, the authentication code stored in the memory 240 and the unique address extracted from the authentication code and the product name are displayed to display any one of them.

When the Bluetooth connection menu is selected, the controller 270 controls to display a unique address and a product name of a product through a product-specific authentication code obtained by a camera or a server.

In addition, when the address information of the device to be connected through the authentication code is obtained, the control unit 270 controls to perform the page scan process immediately without performing an inquiry process, and receives the radio wave according to the Bluetooth protocol using the address information. While searching for a device requesting connection, the device is connected to the device.

For example, when attempting to connect the mobile terminal with the headset via Bluetooth, the mobile terminal photographs a barcode of the headset through a camera or downloads a barcode corresponding to the model name of the headset from a server and obtains a unique address of the headset (BD_ADDR). ) Is detected and the page process is forcibly performed using the unique address.

That is, the mobile communication terminal waits for a packet transmitted from the device while transmitting a packet for the device having the address (BD_ADDR) of the barcode, and the headset receives a page packet including its address (BD_ADDR) and sends a response packet thereto. When sent, the two devices can successfully connect for the first time and store each other's information in a nonvolatile storage device such as flash memory, which subsequently authenticates each other through pairing.

In addition, the controller 270 controls to inquire and connect to a nearby Bluetooth device through an inquiries process as before when attempting to connect to a specific device using Bluetooth address information.

In addition, the controller 270 attempts to connect through a page scanning process using address information, but if it is not connected for a predetermined time, the controller 270 terminates the page scanning process and performs an inquiry process to control the inquiry and connection of the Bluetooth device.

As described above, the present invention detects a unique address of a Bluetooth device from an authentication code and attempts to connect using the detected unique address, thereby ensuring a reliable device-to-device connection that is accurately connected with a desired device without time delay. There is.

3 is a flowchart illustrating an authentication method using Bluetooth according to an embodiment of the present invention.

Referring to FIG. 3, an authentication code of a Bluetooth device to be connected is obtained (S310).

For example, a barcode obtained by photographing a barcode attached to a headset or the like through a camera of a mobile communication terminal or downloading a barcode corresponding to a model name of the headset from a server to obtain an authentication code including a unique address of a Bluetooth device to be connected.

Here, the authentication code is a code indicating the unique address of the Bluetooth device including a predetermined number, letters, one-dimensional bar code, two-dimensional bar code, special symbol mark, etc., and detects the unique address and product name of the product through the authentication code. can do. In addition, the product name may be determined using the unique address.

Thereafter, an attempt is made to connect with the Bluetooth device using the address information of the authentication code (S320).

For example, a unique address of a headset is detected from a barcode obtained through a camera or a barcode downloaded from a server, and a connection process is attempted by forcibly performing a page process using the detected unique address.

In detail, the mobile communication terminal waits for a packet transmitted from the device while transmitting a packet for the device having the address (BD_ADDR) detected in the barcode, and the headset receives a page packet including its address (BD_ADDR). The connection is attempted by sending a response packet.

Thereafter, it is determined whether the connection between the Bluetooth devices (S330), if the Bluetooth connection is connected to the device having the address information transmitted from the mobile communication terminal (S340).

For example, when a mobile communication terminal attempts to connect using address information of a specific headset, the headsets having the address information are connected to each other in response.

In this case, if the Bluetooth devices are not connected, the page process is terminated and the enquiry process is performed to search for the surrounding Bluetooth devices (S350).

Thereafter, the searched devices are displayed in a list and the Bluetooth device is connected to any one of the selected devices (S360).

As described above, the present invention detects a unique address of a Bluetooth device from an authentication code and attempts to connect using the detected unique address, thereby ensuring a reliable device-to-device connection that is accurately connected with a desired device without time delay. There is.

In addition, the present invention can be connected to a desired device even if there are several Bluetooth devices in the vicinity by attempting to connect using the unique address of the Bluetooth device, and does not perform an inquiry process and an inquiry scan process. Since the unique address of the Bluetooth device is not exposed, it is possible to block access attempts from external devices that are unknown in public places.

In addition, the present invention has the effect of increasing the added value of the product by providing a function that is differentiated from other products that can obtain and connect to the unique address of the Bluetooth device through the authentication code.

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 embodiments of the present invention may be modified and implemented. And differences related to such modifications and applications are to be interpreted as being included in the scope of the present invention as defined in the appended claims. Should be.

1 is a view showing a mobile communication device and a Bluetooth device which is a system for a Bluetooth connection according to an embodiment of the present invention.

2 is a diagram illustrating a configuration of a mobile communication terminal according to an embodiment of the present invention.

3 is a flowchart illustrating an authentication method using Bluetooth according to an embodiment of the present invention.

Claims (11)

Detecting address information by obtaining an authentication code of a short range wireless communication device; Connecting to the device having the detected address information by short-range wireless communication. The method of claim 1, The authentication code is an authentication method using short-range wireless communication, characterized in that the code indicating the unique address of the short-range wireless communication device including a predetermined number, letters, one-dimensional barcode, two-dimensional barcode, special symbol mark. The method of claim 1, The short-range wireless communication is connected to the short-range wireless communication by skipping an inquiries process and performing a page process using the detected address. The method of claim 3, wherein If the short-range wireless communication between the devices through the page process is not connected, the authentication method using the short-range wireless communication, characterized in that the end of the page process and performs the inquiries process to try to connect. The method of claim 1, The authentication code is an authentication method using a short-range wireless communication, characterized in that obtained through the photographing means or obtained by downloading from the server. A first Bluetooth device for acquiring an authentication code with a photographing means and detecting address information and attempting a short range wireless communication connection; And a second Bluetooth device that provides address information for a short-range wireless communication connection as an authentication code and is connected to a first Bluetooth device that attempts to connect with the address information. The method of claim 6, And a server for providing the authentication code to the first Bluetooth device to obtain the authentication code through download. The method of claim 6, The authentication code is a short-range wireless communication system, characterized in that the code indicating a unique address including a predetermined number, letters, one-dimensional barcode, two-dimensional barcode, special symbol mark. A wireless transceiver for downloading an authentication code of a short range wireless communication device; A camera for photographing and obtaining an authentication code of a short range wireless communication device; A Bluetooth module that detects address information from the authentication code and attempts to connect by short-range wireless communication; And a controller configured to control a short-range wireless communication connection process by using the address information detected by the authentication code. The method of claim 9, The controller is characterized in that the terminal skips the inquiry process and attempts to perform a page scan when attempting to connect using the address information. The method of claim 9, The control unit attempts to connect through a page process using address information, but if not connected for a predetermined time, terminates the page process and performs an inquiries process, characterized in that the terminal controls the inquiry and connection of the Bluetooth device.

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