KR102333705B1 - Method and apparatus for transmitting a data by using a relay device - Google Patents

Abstract

A short-range wireless communication unit that establishes a short-range wireless communication connection with the first communication device, transmits information about at least one device that can be connected to the relay device to the first communication device, and from the first communication device, one of the at least one device Receive a data relay request requesting to transmit data to a second communication device selected by a user of the first communication device, and in response to the data relay request, transmit data received from the first communication device to the second communication device A relay device according to an embodiment including a control unit for controlling a short-range wireless communication unit to transmit is disclosed.

Description

Method and apparatus for data transmission using a relay device

The present invention relates to a method for transmitting data using a relay device and an apparatus therefor.

The present disclosure relates to data transfer between a relay device and a communication device, and specifically to a method, device, and system for transferring data between communication devices coupled to the relay device.

Many people with multiple communication devices transmit various data (eg, documents, photos, or videos) through the communication devices. In the past, a short-range communication technology (eg, Bluetooth or Wi-Fi) was generally used to transmit data between communication devices. The operating procedure for such a scheme involves once establishing a short-range communication connection between two communication devices, and then transmitting data until the transmission is complete.

It may be required herein that the two communication devices be paired prior to transmission of data.

A general pairing method and data transmission corresponding thereto may be performed directly between two communication devices, but it may be difficult to control each other between the communication devices.

Various embodiments of the present invention are provided for transmitting data between a plurality of communication devices using a relay device.

As a technical means for achieving the above-described technical problem, the first aspect of the present disclosure is that the relay device is a short-range wireless communication unit that establishes a short-range wireless communication connection with the first communication device, to the first communication device, to be connected to the relay device a data relay request for transmitting information about at least one device capable It is possible to provide a relay device, including a control unit for receiving, in response to the data relay request, controlling the short-range wireless communication unit to transmit the data received from the first communication device to the second communication device.

In addition, the information about the at least one device may include at least one of a device name of the at least one device, Bluetooth profile information, and information indicating whether a short-range wireless communication connection with the relay device is established.

In addition, the at least one device that can be connected to the relay device may include a communication device in which pairing with the relay device is performed and connection information is stored in the relay device.

In addition, the connection information may include at least one of a Bluetooth address and a link key of the communication device.

In addition, the relay device further includes a storage unit for storing data received from the first communication device, and the control unit, in response to receiving a data relay request for the second communication device from the first communication device, and It is determined whether a short-range wireless communication connection is established between the short-range wireless communication unit, and when the short-range wireless communication connection is not established between the second communication device and the short-range wireless communication unit, data received from the first communication device is stored in the relay device The storage unit can be controlled to do so.

Also, after storing data received from the first communication device, the controller may transmit the stored data to the second communication device as a short-range wireless communication connection is established between the second communication device and the short-range wireless communication unit.

In addition, the relay device may further include a display unit for displaying identification information of data stored in the relay device when a short-range wireless communication connection is established between the second communication device and the short-range wireless communication unit.

In addition, the control unit, upon receiving the data relay request for the second communication device from the first communication device, transmits a confirmation request for confirming whether to receive the data of the first communication device to the second communication device, Data received from the first communication device may be transmitted to the second communication device based on response information to the confirmation request received from the second communication device.

In addition, a second aspect of the present disclosure is the step of, by the relay device, establishing a short-range wireless communication connection with the first communication device, and transmitting, to the first communication device, information about at least one device that can be connected to the relay device. Step, receiving, from the first communication device, a data relay request requesting to transmit data to a second communication device selected by a user of the first communication device among the at least one device, in response to the data relay request, It is possible to provide a data relay method comprising the step of transmitting data received from the first communication device to the second communication device.

In addition, in response to the data relay request, transmitting the data received from the first communication device to the second communication device may include: receiving the data relay request for the second communication device from the first communication device, the second communication determining whether a short-range wireless communication connection is established between the device and the relay device; It may include the step of storing it in .

In addition, in response to the data relay request, transmitting the data received from the first communication device to the second communication device, after storing the data received from the first communication device, between the second communication device and the short-range wireless communication unit As the short-range wireless communication connection is established, the method may include transmitting the stored data to the second communication device.

Also, the data relay method may further include displaying identification information of data stored in the relay device when a short-range wireless communication connection is established between the second communication device and the short-range wireless communication unit.

In addition, in response to the data relay request, transmitting the data received from the first communication device to the second communication device may include: receiving the data relay request for the second communication device from the first communication device, the second communication Transmitting a confirmation request for confirming whether to receive data of the first communication device to the device, and based on response information to the confirmation request received from the second communication device, the first communication device to the second communication device It may include transmitting the data received from the.

1 is a diagram for explaining a method for a relay device to relay data between a plurality of communication devices according to an embodiment of the present invention.
2 is a flowchart illustrating a method for a relay device to relay data between a plurality of communication devices according to an embodiment of the present invention.
3A to 3C illustrate a method in which a first communication device transmits data to a second communication device through the relay device when the second communication device is connected to the relay device, according to an embodiment of the present invention. is a drawing for
4 is a flowchart illustrating a method for a first communication device to transmit data to a second communication device through the relay device when the second communication device is connected to the relay device according to an embodiment of the present invention.
5 is a method in which the first communication device transmits data to the second communication device through the relay device when the second communication device does not establish a short-range wireless communication connection with the relay device according to an embodiment of the present invention; It is a drawing for explaining.
6 is a method in which the first communication device transmits data to the second communication device through the relay device when the second communication device does not establish a short-range wireless communication connection with the relay device according to an embodiment of the present invention; It is a flowchart to explain.
7 discloses a block diagram of a relay device for transmitting data between communication devices connected to the relay device, according to an embodiment of the present disclosure.
8 shows a block diagram of a relay device for transmitting data between communication devices connected to the relay device, according to another embodiment of the present disclosure.
9 is a block diagram of a relay device for transmitting data between communication devices connected to the relay device according to another embodiment of the present disclosure.
10 shows a flowchart of a method for transferring data between communication devices coupled to a relay device, according to an embodiment of the present disclosure.
11 is a flowchart illustrating a method for transmitting data between communication devices connected to a relay device according to another embodiment of the present disclosure.
12 and 13 show two examples of transferring data between communication devices (ie, a first communication device and a second communication device) connected to a relay device, according to an embodiment of the present disclosure.
14 is a flowchart illustrating a method for transmitting data between communication devices connected to a relay device according to another embodiment of the present disclosure.
15-17 illustrate three embodiments of transferring data between communication devices (ie, a first communication device and a second communication device), according to an exemplary embodiment of the present disclosure.
18 shows a block diagram of a system for a relay device to transmit data between a plurality of communication devices, according to an embodiment of the present disclosure.
19 shows a block diagram of a relay device, according to an embodiment of the present invention.
20 shows a block diagram of a relay device or communication device, according to an embodiment of the present invention.

Terms used in this specification will be briefly described, and the present invention will be described in detail.

The terms used in the present invention have been selected as currently widely used general terms as possible while considering the functions in the present invention, but these may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, and the like. In addition, in a specific case, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than the name of a simple term.

When a part "includes" a certain element throughout the specification, this means that other elements may be further included, rather than excluding other elements, unless otherwise stated. In addition, terms such as "...unit" and "module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software, or a combination of hardware and software. .

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art can easily carry out the embodiments of the present invention. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

1 is a diagram for explaining a method of relaying data between a plurality of communication devices by a relay device 100 according to an embodiment of the present invention.

Referring to FIG. 1 , the relay device 100 may relay data between a plurality of communication devices.

The first communication device 200a may request the relay device 100 to transmit data to the second device. The relay device 100 may forward data received from the first communication device 200a to the second communication device 200b.

According to an embodiment, the first communication device 200a may receive data to be transmitted and a user input for selecting the second device, and may request the relay device 100 to transmit the selected data to the selected second device. In this case, the first communication device 200a displays a list of communication devices that can be connected to the relay device 100 and receives a user input for selecting one of the list, thereby receiving a user input for selecting the second device can do.

Communication devices that can be connected to the relay device 100 may be communication devices that have been connected to the relay device 100 and thus have connection information stored therein. For example, communication devices that may be connected to the relay device 100 may include communication devices currently connected to the relay device 100 and communication devices that have previously been connected to the relay device 100 .

The connection information may mean information for establishing a short-range communication connection. For example, the connection information may include, but is not limited to, a Bluetooth address (eg, MAC address) of a device for Bluetooth communication and a Bluetooth link key, which is authentication information generated during pairing. In addition, the short-range communication connection may include, but is not limited to, a Bluetooth connection, a Wi-Fi direct connection, and the like.

Upon receiving the data transmission request from the first communication device 200a, the relay device 100 sends a confirmation request for checking whether to receive the data of the first communication device 200a to the second communication device 200b. can be transmitted As the second communication device 200b receives, from the second communication device 200b, an acceptance response that the second communication device 200b accepts receiving the data of the first communication device 200a, the relay device 100 sends the first communication device 200a ( It may receive data from 200a) and transmit the received device to the second communication device 200b.

Throughout the specification, determining to share data between the first communication device 200a and the second communication device 200b may be referred to as an alliance between the communication devices. Also, according to an embodiment, a process of transmitting a confirmation request for confirming whether to receive data of the first communication device 200a to the second communication device 200b may be omitted.

As an alliance is established between the first communication device 200a and the second communication device 200b, the relay device 100 receives data from the first communication device 200a, and transmits the received data to the second communication device ( 200b).

At this time, when the second communication device 200b does not establish a short-range communication connection with the relay device 100 , the relay device 100 stores the data received from the first communication device 200a and then As the second communication device 200b establishes a short-range communication connection with the relay device 100 , the stored data may be transmitted to the second communication device 200b.

2 is a flowchart illustrating a method in which the relay device 100 relays data between a plurality of communication devices according to an embodiment of the present invention.

In step S210, the relay device 100 may establish a short-range wireless communication connection with the first communication device 200a.

For example, the relay device 100 and the first communication device 200a may establish a Bluetooth communication connection.

For example, when the relay device 100 and the first communication device 200a are not paired, the relay device 100 searches for a Bluetooth device around the relay device 100 to connect the first communication device 200a. After discovery and pairing with the first communication device 200a, a Bluetooth communication connection with the first communication device 200a may be established.

The pairing process may be performed as follows. First, the master device may search for slave devices in the vicinity. In this case, the master device may receive product information from the slave device allowing the search. Product information may include a Bluetooth address (BD Address: Bluetooth Device Address), a device name (Product Name), profile information, and the like.

A profile may be a standard defining the purpose of Bluetooth used in a top-level application. Profiles include Cordless Telephony Profile, Intercom Profile, Serial Port profile, (Headset Profile headset), Dial-up Networking Profile (modem), Fax Profile (fax), Lan Access Profile (router). ), Object Push Profile (business card exchange), File Transfer Profile (file transfer), Synchronization Profile (data synchronization), and the like.

The master device may display a list of several searched slave devices and receive a user input for selecting one of the lists. The master device may request pairing from the selected slave device. Upon receiving the pairing request, the slave device may receive user authentication information (eg, PIN code) from the user through the user interface, and transmit the received user authentication information to the master device. Upon receiving user authentication information from the slave device, the master device may authenticate the slave device by comparing it with pre-stored user authentication information.

As the slave device is authenticated, the master device may generate a link key based on the Bluetooth address of the slave device and store the generated link key. In addition, the master device and the slave device may establish a Bluetooth communication connection with each other based on the stored link key.

Accordingly, the master device and the slave device, which have been paired once, can establish a Bluetooth connection without a pairing process by using the pre-stored Bluetooth address and link key during the next connection. For example, when the relay device 100 and the first communication device 200a are paired, the relay device 100 has the Bluetooth address and link key of the first communication device 200a pre-stored in the relay device 100 . Using , it is possible to directly establish a short-range wireless communication connection with the first communication device 200a.

Throughout the specification, the paired state of the two devices is that the two devices each store the other's Bluetooth address and share a link-key to be used to authenticate each other, so based on the shared link key, each other It may mean a state in which an encrypted Bluetooth communication channel can be established between the two. Also, a state in which a Bluetooth communication connection is established between two devices may mean a state in which the two devices can transmit data to each other by establishing a Bluetooth communication channel (eg, an RFCOMM channel).

Also, throughout the specification, when two devices are paired, one device may be referred to as a pairing device of the other device.

In operation S220 , the relay device 100 may transmit, to the first communication device 200a , information on at least one device that can be connected to the relay device 100 .

At least one device connectable to the relay device 100 may include a communication device in which connection information is stored in the relay device 100 by pairing with the relay device 100 . The connection information may include at least one of a Bluetooth address and a link key of the communication device, but is not limited thereto.

The information about the device may include at least one of a device name of the device, Bluetooth profile information, and information indicating whether a short-range wireless communication connection with the relay device 100 is currently established.

In step S230, the relay device 100 transmits data from the first communication device 200a to the second communication device 200b selected by the user of the first communication device 200a among at least one device. It may receive a data relay request requesting to be given.

For example, the first communication device 200a may display information about a communication device that can be connected to the relay device 100 . For example, the first communication device 200a may display a device name. Also, the first communication device 200a may display a function of the device based on the Bluetooth profile information. Also, the first communication device 200a may display whether a short-range wireless communication connection with the relay device 100 is currently established.

The first communication device 200a receives a user input for selecting the second communication device 200b from the displayed list of at least one communication device, and to the second communication device 200b selected by the relay device 100 You can send a data relay request requesting data to be transmitted.

In step S230 , the relay device 100 may transmit data received from the first communication device 200a to the second communication device 200b in response to the data relay request.

After receiving the data relay request from the first communication device 200a, as data is received from the first communication device 200a, the relay device 100 may transmit the received data to the second communication device 200b. have.

Also, according to an embodiment, the relay device 100 tells the second communication device 200b to receive the data of the first communication device 200a upon receiving the data relay request from the first communication device 200a. It is determined whether to transmit the data reception request to the second communication device 200b and transmit the data received from the first communication device 200a to the second communication device 200b based on the response information received from the second communication device 200b. can

In addition, according to an embodiment, as the relay device 100 receives a data relay request from the first communication device 200a, a short-range wireless communication connection is established between the second communication device 200b and the relay device 100. It is determined whether there is, and when a short-range wireless communication connection is not established between the second communication device 200b and the relay device 100 , data received from the first communication device 200a is stored in the relay device 100 . can

After storing the data received from the first communication device 200a, the second communication device 200b re-enters the short-range wireless communication connection range of the relay device 100, or the Bluetooth function is activated by the user's input. Accordingly, the relay device 100 may establish a short-range wireless communication connection between the second communication device 200b and the relay device 100 .

Also, in this case, as a short-range wireless communication connection is established between the second communication device 200b and the relay device 100 , the relay device 100 may display identification information of data stored in the relay device 100 . . For example, the relay device 100 may display a confirmation window for confirming whether to transmit the stored data to the second communication device 200b.

Also, as the short-range wireless communication connection with the second communication device 200b is established, the relay device 100 may transmit stored data to the second communication device 200b.

3A to 3C show that when the second communication device 200b is connected to the relay device 100, the first communication device 200a is the first communication device 200a through the relay device 100 according to an embodiment of the present invention. 2 A diagram for explaining a method of transmitting data to the communication device 200b.

Referring to FIG. 3A , the first communication device 200a may receive a user input for selecting the relay device 100 .

For example, the first communication device 200a may select data to transmit and receive a user input for transmitting the selected data to another device using Bluetooth.

Upon receiving the user input for data transmission, the first communication device 200a may display a list of pairing devices registered in the first communication device 200a.

As illustrated in FIG. 3A , when a wireless communication connection is established between the first communication device 200a and the watch device, the first communication device 200a may display identification information 310 of the watch device. In this case, the first communication device 200a may display a phrase 320 indicating that the watch device can operate as the relay device 100 . Whether to operate as the relay device 100 may be received from the relay device 100 as Bluetooth profile information of the relay device 100 when the first communication device 200a and the relay device 100 are paired. .

Referring to FIG. 3B , upon receiving a user input for selecting a watch device that is the relay device 100 , the first communication device 200a may display a list of pairing devices registered with the relay device 100 .

For example, upon receiving a user input for selecting the relay device 100 , the first communication device 200a may request the relay device 100 for a list of pairing devices registered in the relay device 100 . Upon receiving a request for a list of pairing devices from the first communication device 200a, the relay device 100 may transmit a list of pairing devices registered in the relay device 100 to the first communication device 200a. .

The list of pairing devices registered in the relay device 100 is a list of communication devices in which a wireless communication connection is established with the relay device 100 and a communication device that has been paired with the relay device 100 although a wireless communication connection is not currently established. It can contain a list.

Also, the relay device 100 may transmit information about the pairing device. The information about the pairing device may include, but is not limited to, identification information of the pairing device, a Bluetooth profile, a storage capacity, and whether a wireless communication connection with the relay device 100 is established.

Upon receiving the information on the pairing device from the relay device 100 , the first communication device 200a may display the received information on the pairing device. In this case, the first communication device 200a corresponds to the identification information of each pairing device, and whether the icon 330 indicating the function of the pairing device and the pairing device are currently established with the relay device 100 and wireless communication connection. Information 340 indicating whether or not there is may be displayed. The function of the pairing device may be obtained from a Bluetooth profile of the pairing device.

Upon receiving a user input for selecting the second communication device 200b from the list of displayed pairing devices, the first communication device 200a transmits data to the selected second communication device 200b to the relay device ( 100) can be requested. In this case, the first communication device 200a may transmit identification information, size, and type of data to be transmitted, and identification information of the selected second communication device 200b to the relay device 100 .

Referring to FIG. 3C , upon receiving the data relay request from the first communication device 200a , the relay device 100 determines whether the second communication device 200b establishes a wireless communication connection with the relay device 100 . can be judged When the second communication device 200b establishes a wireless communication connection with the relay device 100, the relay device 100 requests the second communication device 200b to receive data of the first communication device 200a. transmit a data reception request to, and based on the response information received from the second communication device 200b, determine whether to transmit the data received from the first communication device 200a to the second communication device 200b have.

The data reception request may include identification information, size, and type of data to be transmitted, and information on a storage location of the data source.

Upon receiving the data reception request from the relay device 100, the second communication device 200b displays a text indicating that the data reception request has been received from the relay device 100 and a confirmation window for selecting whether to receive the requested data. can be displayed.

In addition, according to an embodiment, the second communication device 200b notifies that a data reception request has been received from the first communication device 200a through the relay device 100 based on the information on the storage location of the data source. A confirmation window 350 for selecting whether to receive the phrase and the requested data may be displayed.

Upon receiving the user input for accepting the data reception request, the second communication device 200b may transmit information indicating acceptance of the data reception request to the relay device 100 .

Upon receiving the information indicating acceptance of the data reception request from the second communication device 200b, the relay device 100 provides the first communication device 200a with the first communication device 200a and the second communication device 200b. ) can transmit information indicating that an alliance has been established.

Upon receiving the information indicating that the association has been established from the relay device 100 , the first communication device 200a transmits data to the relay device 100 , and the relay device 100 transmits the received data to the second communication device can be sent to (200b).

4 is a diagram in which, according to an embodiment of the present invention, when the second communication device 200b is connected to the relay device 100, the first communication device 200a is connected to the second communication device through the relay device 100. It is a flowchart explaining a method of transmitting data to 200b.

In step S410, the relay device 100 may establish a short-range wireless communication connection with the first communication device 200a and the second communication device 200b.

In step S415 , the first communication device 200a may request information about a pairing device registered with the relay device 100 .

For example, as a user input for transmitting data to the relay device 100 is received, the first communication device 200a requests the relay device 100 for information about a pairing device registered in the relay device 100 . can Also, according to an embodiment, the first communication device 200a may periodically request information about a pairing device registered in the relay device 100 from the relay device 100 .

In operation S420 , the relay device 100 may transmit information about a pairing device registered in the relay device 100 to the first communication device 200a.

The information about the pairing device may include, but is not limited to, identification information of the pairing device, a Bluetooth profile, a storage capacity, and whether a wireless communication connection with the relay device 100 is established.

In addition, according to an embodiment, the relay device 100 periodically transmits information about a pairing device registered in the relay device 100 to communication devices in which a wireless communication connection is established, even if there is no request from the first communication device 200a. can also be transmitted.

In step S425 , the first communication device 200a may display a list of pairing devices registered in the relay device 100 .

In addition, the first communication device 200a may display a function of the pairing device, whether a wireless communication connection with the relay device 100 is currently established, and the like in response to identification information of each pairing device.

In step S430 , the first communication device 200a may receive a user input for selecting the second communication device 200b .

In step S435 , the first communication device 200a may request the relay device 100 to transmit data to the second communication device 200b.

In this case, the first communication device 200a may transmit information about data to be transmitted and identification information of the second communication device 200b. Also, the first communication device 200a may transmit information about a function to be performed by the second communication device 200b with respect to data. For example, when the second communication device 200b is a device supporting several types of Bluetooth profiles, the first communication device 200a provides information on the Bluetooth profile to be performed by the second communication device 200b with respect to data. can be transmitted.

In step S440 , the relay device 100 may determine whether a short-range wireless communication connection is established with the second communication device 200b.

In step S445, the relay device 100 may request the second communication device 200b to receive data of the first communication device 200a.

In this case, the relay device 100 may transmit identification information of the first communication device 200a, identification information of data, type and size, etc. to the second communication device 200b.

In operation S450 , the second communication device 200b may transmit information indicating acceptance of the data reception request to the relay device 100 .

For example, the second communication device 200b may display a confirmation window for confirming whether to receive the data of the first communication device 200a based on the data reception request received from the relay device 100 . have. In addition, the second communication device 200b may receive a user input for accepting data transmission through the confirmation window.

According to an embodiment, steps S445 and S450 may be omitted. For example, if the second communication device 200b is a headset or a printer, the relay device 100 does not confirm whether to receive the data of the first communication device 200a from the second communication device 200b, Data of the first communication device 200a may be transmitted to the second communication device 200b.

In operation S455, the relay device 100 may transmit information indicating acceptance of the data relay request to the first communication device 200a.

In operation S460 , the first communication device 200a may transmit data to the relay device 100 .

In operation S465, the relay device 100 may transmit data to the second communication device 200b.

The second communication device 200b may store data received from the relay device 100 . Also, according to an embodiment, the second communication device 200b may process the received data according to the Bluetooth profile. For example, the second communication device 200b may play music by decoding the received data or may print the received data.

5 is a diagram illustrating a case in which a second communication device 200b and a short-range wireless communication connection with the relay device 100 are not established through the relay device 100 through the first communication device 200a according to an embodiment of the present invention. ) is a diagram for explaining a method of transmitting data to the second communication device 200b.

Referring to FIG. 5 , when the second communication device 200b does not establish a short-range wireless communication connection with the relay device 100 , the relay device 100 stores data received from the first communication device 200a. and, when the second communication device 200b establishes a wireless communication connection with the relay device 100 , the stored data may be transmitted to the second communication device 200b.

Upon receiving the data relay request from the first communication device 200a, the relay device 100 may determine whether the second communication device 200b establishes a wireless communication connection with the relay device 100 . When the second communication device 200b does not perform the Bluetooth communication function by the user's setting or the second communication device 200b is located outside the short-range wireless communication connection range of the relay device 100, the second communication device 200b ) and a wireless communication connection between the relay device 100 may not be established.

When a wireless communication connection with the second communication device 200b is not established, the relay device 100 may transmit information indicating acceptance of the data relay request to the first communication device 200a.

Upon receiving information indicating acceptance of the data relay request from the relay device 100 , the first communication device 200a may transmit data to the relay device 100 . The relay device 100 may store the received data corresponding to the identification information of the second communication device 200b.

After the received data is stored, the second communication device 200b performs a Bluetooth communication function according to the user's setting, or as the second communication device 200b enters the short-range wireless communication connection range of the relay device 100 , the relay device 100 may establish a wireless communication connection with the second communication device 200b. In this case, the relay device 100 may establish a wireless communication connection with the second communication device 200b based on connection information on the second communication device 200b previously stored in the relay device 100 . For example, the relay device 100 identifies the second communication device 200b by using the Bluetooth address information and the link key of the second communication device 200b pre-stored in the relay device 100, and without user authentication. It is possible to automatically establish a wireless communication connection with the second communication device 200b.

As the second communication device 200b establishes a wireless communication connection with the relay device 100, the relay device 100 transfers the stored data corresponding to the identification information of the second communication device 200b to the second communication device ( 200b).

According to an embodiment, as shown in FIG. 5 , as the second communication device 200b is connected to the relay device 100 , the relay device 100 transmits the stored data to the second communication device 200b. A confirmation window 510 for confirming may be displayed. In this case, the relay device 100 may display the identification information of the second communication device 200b that has transmitted the data and the identification information of the data together. Also, the relay device 100 may display a confirmation button 520 for transmitting stored data, a hold button 530 for deferring transmission, and a delete button 540 for deleting data on the confirmation window. .

Upon receiving a user input for selecting the confirmation button through the confirmation window, the relay device 100 may transmit a data reception request requesting to receive data to the second communication device 200b. Also, upon receiving a user input for selecting a delete button, the relay device 100 may delete stored data. In addition, as the user input for selecting the hold button is received, the relay device 100 does not delete the stored data and displays a confirmation window again when the connection with the second communication device 200b is interrupted and then reconnected. can do.

6 is a diagram illustrating a case in which a second communication device 200b and a short-range wireless communication connection with the relay device 100 are not established through the relay device 100 according to an embodiment of the present invention; ) is a flowchart for explaining a method of transmitting data to the second communication device 200b.

In step S610, the relay device 100 may establish a short-range wireless communication connection with the first communication device 200a and the second communication device 200b. In step S615 , the first communication device 200a may request information about a pairing device registered in the relay device 100 . In step S620 , the relay device 100 may transmit information about a pairing device registered in the relay device 100 to the first communication device 200a. In step S625 , the first communication device 200a may display a list of pairing devices registered in the relay device 100 . In step S630 , the first communication device 200a may receive a user input for selecting the second communication device 200b. In step S635 , the first communication device 200a may request the relay device 100 to transmit data to the second communication device 200b. In operation S640 , the relay device 100 may determine whether a short-range wireless communication connection with the second communication device 200b is established. Steps S610 to S640 may be described with reference to steps S410 to S440 of FIG. 4 .

If a short-range wireless communication connection is not established with the second communication device 200b in step S640, in step S645, the relay device 100 sends information indicating acceptance of the data relay request to the first communication device 200a can be transmitted

In operation S650 , the first communication device 200a may transmit data to the relay device 100 .

In operation S655 , the relay device 100 may store the received data in response to the second communication device 200b.

After storing the data received in step S655 , in step S660 , the relay device 100 may establish a short-range wireless communication connection with the second communication device 200b.

For example, as the second communication device 200b performs a Bluetooth communication function or the second communication device 200b enters within the short-range wireless communication connection range of the relay device 100 by the user's setting, the relay device 100 may establish a wireless communication connection with the second communication device 200b. In this case, the relay device 100 may establish a wireless communication connection with the second communication device 200b based on connection information on the second communication device 200b previously stored in the relay device 100 .

As the short-range wireless communication connection is established with the second communication device 200b in step S660, in step S665, the relay device 100 receives the data of the first communication device 200a to the second communication device 200b. you can request In operation S670 , the second communication device 200b may transmit information indicating acceptance of the data reception request to the relay device 100 . In step S675 , the relay device 100 may transmit data stored in correspondence to the second communication device 200b to the second communication device 200b. Steps S665 to S675 may be described with reference to steps S445, S450, and S465 of FIG. 4 .

7 is a block diagram of the relay device 100 for transmitting data between communication devices connected to the relay device 100 according to an embodiment of the present disclosure.

As shown in FIG. 7 , the relay device 100 for transmitting data between communication devices connected to the relay device 100 may include a connection establishment unit 180 and an association establishment unit 185 . The connection establishment unit 180 and the alliance establishment unit 185 may be configured as a hardware device (eg, a digital signal processor (DSP), a field programmable gate array (FPGA), or a dedicated chip (eg, It can be implemented as a special-purpose hardware processor) such as a short-range communication chip).

Also, the connection setting unit 180 and the partnership setting unit 185 may be implemented as software through computer programs. For example, the connection establishment unit 180 and the association establishment unit 185 may be implemented in the relay device 100 as various software modules for transmitting data between communication devices. For example, various software modules may constitute a special-purpose application for transferring data.

The relay device 100 includes a smart wearable device (eg, a smart watch (eg, smart watch gear), smart glasses or smart shoes), a smart phone, a PC, a tablet PC, a digital media player, and may include, but are not limited to, game consoles.Communication devices include computing devices such as smart phones, PCs, tablet PCs, digital media players and game consoles, and peripheral devices such as headsets, printers, keyboards, mice and speakers. can do.

The connection setting unit 180 may establish a short-range communication connection between the relay device 100 and at least two communication devices. Short-range communication may include Bluetooth communication, Wi-Fi Direct communication, or any other suitable short-range communication.

For example, the connection establishment unit 180 may actively request the establishment of a short-range communication connection from each of the at least two communication devices. Also, the connection setting unit 180 may establish a short-range communication connection in response to a request for a short-range communication connection from the communication devices. Also, the connection establishment unit 180 may establish a short-range communication connection with at least two communication devices through a third-party device (eg, a server).

While the relay device 100 communicates with a plurality of communication devices, the relay device 100 binds each communication packet to an address of the communication device, and performs parsing and packing to communicate with the affiliated communication device. can Furthermore, the relay device 100 may process communication packets related to each communication device by allocating a thread corresponding to the address of the communication device. However, the method is provided as one example only. For example, one of ordinary skill in the art may recognize that the relay device 100 and a plurality of communication devices may communicate and associate in any suitable manner.

After a short-range wireless communication connection is established, the association setting unit 185 may establish an association for data transmission between two communication devices among at least two communication devices. In this case, the two communication devices may include a first communication device 200a and a second communication device 200b.

Control over data transmission between two communication devices may be obtained through an established partnership. In the case of user-processing a plurality of communication devices, central management of data transmission between communication devices may be performed through the relay device 100 such as a smart watch.

In addition, the association setting unit 185 receives a request signal for requesting data transmission from the first communication device 200a to the second communication device 200b, and transmits the requested signal to the second communication device 200b. By sending, it is possible to establish an association between two communication devices.

In addition, the association setting unit 185 receives, from the second communication device 200b, a response signal indicating that the transmission request from the first communication device 200a has been received, and the response received from the first communication device 200a. signal can be transmitted.

Furthermore, after the first communication device 200a and the second communication device 200b establish a short-range wireless communication connection with the relay device 100 with each other, the second communication device 200b performs the short-range wireless communication of the relay device 100 . When receiving a request signal for requesting transmission of data from the first communication device 200a to the second communication device 200b in a state located outside the communication connection range, the association setting unit 185 performs the second communication When the device 200b comes back into the short-range wireless communication connection range of the relay device 100 , the request signal may be forwarded to the second communication device 200b.

Thereafter, the association setting unit 185 receives, from the second communication device 200b, a response signal indicating that the transmission request from the first communication device 200a has been received, and receives the response signal received by the first communication device 200a. A response signal can be transmitted. Accordingly, even if the second communication device 200b is temporarily located outside the short-range communication range (for example, even if the second communication device 200b is not around the user), the association prepared for data transmission can be efficiently established. have.

In addition, by requesting the first communication device 200a to transmit data to the second communication device 200b, the association setting unit 185 connects the first communication device 200a with the second communication device 200b. You can also set up partnerships. Specifically, the association setting unit 185 may actively initiate data transmission between the first communication device 200a and the second communication device 200b. In this case, the association setting unit 185 requests the first communication device 200a to transmit data to the second communication device 200b, thereby forming the first communication device 200a and the second communication device 200b. You can set up partnerships between them. For example, data to be transmitted from the first device to the second device may be selected by the association setting unit 185 . The affiliate setting unit 185 indicates that the first communication device 200a will transmit data to the second communication device 200b when the first communication device 200a permits the request from the affiliate setting unit 185 . The second communication device 200b may be notified.

In addition, the partnership setting unit 185 may establish a partnership between the first communication device 200a and the second communication device 200b by pairing the first communication device 200a with the second communication device 200b. have. In the case of Bluetooth communication, as compared to directly establishing a Bluetooth pairing between the first communication device 200a and the second communication device 200b, the first communication through the affiliate setting unit 185 (located in the smart watch gear) It may be faster to establish a Bluetooth pairing between the device 200a and the second communication device 200b.

8 is a block diagram of a relay device 100 for transmitting data between communication devices connected to the relay device 100 according to another embodiment of the present disclosure.

In addition to the connection establishment unit 180 and the alliance establishment unit 185 illustrated in FIG. 7 , the relay device 100 for transmitting data between communication devices connected to the relay device 100 illustrated in FIG. 8 includes a data forwarding unit. (190) may be further included.

Specifically, the connection setting unit 180 may establish a short-range wireless communication connection between the relay device 100 and at least two communication devices. The association setting unit 185 may establish an association between two communication devices among at least two communication devices in order to prepare for data communication between the two communication devices after a short-range wireless communication connection is established. The two communication devices may include a first communication device 200a and a second communication device 200b. In addition, although not shown, the connection setting unit 180 and the association setting unit 185 may operate according to the embodiment of FIG. 7 .

The data forwarding unit 190 receives data from the first communication device 200a and transmits the received data to the second communication device 200b after the association is established between the two communication devices by the association setting unit 185. ) can be forwarded to

The data forwarding unit 190 may directly forward data received from the first communication device 200a to the second communication device 200b. The data forwarding unit 190 may further store the received data (Buffer) and forward the stored data to the second communication device 200b.

For example, the data forwarding unit 190 stores data received from the first communication device 200a, and when the stored data reaches a predetermined amount, the data forwarding unit 190 may forward the stored data to the second communication device 200b. .

Also, the data forwarding unit 190 may first store all of the data received from the first communication device 200a and then forward all the stored data to the second communication device 200b at once. Accordingly, when the amount of data to be transmitted is relatively large (eg, when transmitting a video file), the number of times that data is forwarded to the second communication device 200b may be reduced, and transmission efficiency may be increased. have.

As another example, after the alliance is established between the first communication device 200a and the second communication device 200b, when the second communication device 200b is located outside the short-range wireless communication connection range of the relay device 100 , the data forwarding unit 190 stores the data received from the first communication device 200a, and when the second communication device 200b re-enters the short-range wireless communication connection range of the relay device 100, the second The stored data may be forwarded to the communication device 200b. Accordingly, the first communication device 200a transmits data to the second communication device 200b at a convenient time without requiring that the second communication device 200b be located within the short-range wireless communication connection range of the relay device 100 . can be transmitted. In addition, the second communication device 200b may enter the short-range wireless communication connection range of the relay device 100 at a convenient time to receive data.

For example, the first communication device 200a may be a mobile phone A, the second communication device 200b may be a mobile phone B, and the relay device 100 may be a smart watch gear. When mobile phone A and mobile phone B respectively establish a Bluetooth communication connection with the smart watch gear, while mobile phone B is located or not within the Bluetooth communication connection range of the smart watch gear, mobile phone A is convenient for the smart watch gear. Data can be transmitted in time. As the mobile phone B enters the Bluetooth communication connection range of the smart watch gear at a convenient time, the smart watch gear may forward the stored data to the mobile phone B.

9 is a block diagram of the relay device 100 for transmitting data between communication devices connected to the relay device 100 according to another embodiment of the present disclosure. In addition to the connection establishment unit 180 and the alliance establishment unit 185 illustrated in FIG. 7 , the device for transmitting data between the communication devices connected to the relay device 100 disclosed in FIG. 9 further includes a data transmission control unit 195 . ) may be included.

Specifically, the connection setting unit 180 may establish a short-range wireless communication connection between the relay device 100 and at least two communication devices. The association setting unit 185 may establish an association between two communication devices among at least two communication devices in order to prepare for data transmission between the two communication devices after a short-range wireless communication connection is established. Here, the two communication devices may include a first communication device 200a and a second communication device 200b. In addition, although not shown, the connection setting unit 180 and the association setting unit 185 may operate according to the embodiment of FIG. 7 .

The data transmission unit 195 selects data to be transmitted from the first communication device 200a to the second communication device 200b after the association is established between the two communication devices by the association setting unit 195, and The first communication device 200a may control to transmit the selected data to the second communication device 200b.

Furthermore, the data to be transmitted may be in the form of a file, and the data transmission control unit 195 may select a file to be transmitted from the first communication device 200a to the second communication device 200b through FTP (File Transfer Protocol). . Accordingly, file transfer between two communication devices can be efficiently controlled by the relay device 100 .

10 illustrates a flowchart of a method for transmitting data between communication devices connected to the relay device 100 according to an embodiment of the present disclosure.

Here, the relay device 100 includes a smart wearable device (eg, a smart watch (eg, smart watch gear), smart glasses or smart shoes), a smart phone, a PC, a tablet PC, a digital multimedia player, and a game console. may include Communication devices may include smart phones, PCs, tablet PCs, digital multimedia players, and game consoles. For example, the method shown in FIG. 7 may be completely performed based on the device or computer program shown in FIG. 9 .

In step S1010, short-range wireless communication may be established between the relay device 100 and at least two communication devices. Here, the short-range communication may include Bluetooth communication, Wi-Fi Direct communication, or any other suitable short-range communication.

For example, the relay device 100 may actively request the establishment of a short-range communication connection from each of the at least two communication devices. Also, the relay device 100 may establish a short-range communication connection in response to a request for a short-range communication connection from the communication devices. Also, the relay device 100 may establish a short-range communication connection with at least two communication devices through a third-party device (eg, a server).

While the relay device 100 communicates with the plurality of communication devices, the relay device 100 binds each communication packet to an address of the communication device, and performs parsing and packing, thereby communicating with the affiliated communication device; can do. Furthermore, in the relay device 100 , communication packets related to a specific communication device may be specifically processed by allocating a thread according to an address of the communication device. However, the method is provided as one example only. For example, one of ordinary skill in the art may recognize that relay device 100 and a plurality of communication devices may communicate and cooperate in any suitable manner.

In step S1020, after the short-range wireless communication connection is established, in order to prepare for data communication between the two communication devices, an association between two communication devices among the at least two communication devices may be established. Here, the two communication devices may include a first communication device 200a and a second communication device 200b.

By the above method, control over data transmission between two communication devices can be obtained through an established partnership. In particular, in the case of user-processing a plurality of communication devices, central management of data transmission between communication devices may be performed through the relay device 100 such as a smart watch.

In addition, in step S1020, the relay device 100 receives a request signal for requesting data transmission from the first communication device 200a to the second communication device 200b, and transmits the requested signal to the second communication device (200b).

Preferably, the relay device 100 receives, from the second communication device 200b, a response signal indicating that data from the first communication device 200a has been received, and sends the response signal to the first communication device 200a. can be transmitted

Furthermore, after the first communication device 200a and the second communication device 200b establish a short-range wireless communication connection with the relay device 100 with each other, the relay device 100, the second communication device 200b When it is located outside the short-range wireless communication connection range of the device 100, a request signal for requesting data transmission from the first communication device 200a to the second communication device 200b is received, and the second communication device 200b ) may forward the request signal to the second communication device 200b when it comes back into the short-range wireless communication connection range of the relay device 100 .

Thereafter, the relay device 100 receives, from the second communication device 200b, a response signal indicating reception of data from the first communication device 200a, and transmits the response signal to the first communication device 200a. can According to the method, even if the relay device 100 is temporarily located outside the short-range communication range (eg, even if the relay device 100 is not around the user), the association prepared for data transmission can be efficiently established.

In addition, in step S1020, the cooperation between the first communication device 200a and the second communication device 200b is that the relay device 100 transmits data to the first communication device 200a to the second communication device 200b. By requesting to transmit, it can be set. Specifically, the relay device 100 may actively initiate data transmission between the first communication device 200a and the second communication device 200b. In this case, the relay device 100 requests the first communication device 200a to transmit data to the second communication device 200b between the first communication device 200a and the second communication device 200b. You can set up an alliance. . Here, for example, the data may be selected by the relay device 100 . Preferably, the relay device 100 allows the first communication device 200a to send data to the second communication device 200b after the request from the relay device 100 is accepted by the first communication device 200a. may inform the second communication device 200b that it will transmit

Also, in step S1020 , the association between the first communication device 200a and the second communication device 200b may be established by pairing the first communication device 200a with the second communication device 200b. Preferably, in the case of Bluetooth communication, as compared to directly establishing a Bluetooth pairing between the first communication device 200a and the second communication device 200b, the relay device 100 (eg, smart watch gear) It is very fast to establish Bluetooth pairing between the first communication device 200a and the second communication device 200b by .

11 is a flowchart illustrating a method for transmitting data between communication devices connected to the relay device 100 according to another embodiment of the present disclosure.

In step S1100 , a short-range wireless communication connection may be established between at least two communication devices and the relay device 100 .

In step S1120, after the short-range wireless communication connection is established, an association between two communication devices among the at least two communication devices may be established. Here, the two communication devices may include a first communication device 200a and a second communication device 200b.

Steps S1100 and S1120 include detailed operations performed in steps S1010 and S1020 of FIG. 10 .

In operation S1130 , the relay device 100 may receive data from the first communication device 200a and forward the received data to the second communication device 200b .

Here, the relay device 100 may directly forward data received from the first communication device 200a to the second communication device 200b. Further preferably, the relay device 100 may store the received data and forward the stored data to the second communication device 200b.

The method of forwarding data after storing, for example, the relay device 100 stores the data received from the first communication device 200a, and when the stored data reaches a predetermined amount, the second communication device ( 200b) can forward the stored data. In particular, the relay device 100 may first store all of the data received from the first communication device 200a, and then forward the stored data to the second communication device 200b at once. In this way, when the amount of data to be transmitted is relatively large (eg, when transmitting a video file), the number of times of data forwarded to the second communication device 200b can be reduced, and transmission efficiency can be improved. can

As another example, after the alliance is established between the first communication device 200a and the second communication device 200b, when the second communication device 200b is located outside the short-range wireless communication connection range of the relay device 100, the relay The device 100 stores data received from the first communication device 200a, and as the second communication device 200b enters within the short-range wireless communication connection range of the relay device 100, the second communication device 200b ) to forward the stored data. By the method, the first communication device 200a at a convenient time, regardless of whether the second communication device 200b is located within the short-range wireless communication connection range of the relay device 100, to the second communication device 200b data can be transmitted. In addition, the second communication device 200b may enter the short-range wireless communication connection range of the relay device 100 to receive data at a convenient time.

For example, it may be assumed that the first communication device 200a is a mobile phone A, the second communication device 200b is a mobile phone B, and the relay device 100 is a smart watch gear. When mobile phone A and mobile phone B respectively establish a Bluetooth communication connection with the smart watch gear, while mobile phone B is located or not located within the Bluetooth communication connection range of the smart watch gear, mobile phone A is connected to the smart watch gear at a convenient time. You can send data to be stored to the watch gear. The smart watch gear may forward the stored data to the mobile phone B at a convenient time as the mobile phone B enters the Bluetooth communication connection range of the smart watch gear.

12 and 13 are two types of data transmission between communication devices (ie, the first communication device 200a and the second communication device 200b) connected to the relay device 100, according to an embodiment of the present disclosure. An example is shown.

In two examples, a detailed procedure for transmitting a file through Bluetooth communication between the relay device 100 and two communication devices performing short-range wireless communication will be described. However, it is not limited to this embodiment.

The data transmitted between the two communication devices may be of a type other than a file format, and the short-range wireless communication may also be a Wi-Fi Direct communication or other suitable short-range wireless communication. In addition, although FIGS. 12 and 13 show only two communication devices capable of transmitting data between each other, in addition to the first communication device 200a and the second communication device 200b, other communication devices connected to the relay device 100 are shown. There may be devices.

12 illustrates an example of transmitting data between communication devices connected to the relay device 100 according to an embodiment of the present disclosure.

Referring to FIG. 12 , in step S1205 , a Bluetooth communication connection may be individually established between the relay device 100 and the first communication device 200a and the second communication device 200b.

In step S1210 , the first communication device 200a may transmit a request for Bluetooth addresses of other communication devices paired with the relay device 100 to the relay device 100 .

In step S1215, in response to the received request, the relay device 100 may transmit a response including the Bluetooth address of the second communication device 200b paired to the relay device 100 to the first communication device 200a. have.

In step S1220, the first communication device 200a transmits a data transmission request requesting data transmission to the second communication device 200b corresponding to the received Bluetooth address of the second communication device 200b to the relay device 100. can be sent to

In step S1225 , the relay device 100 may forward the received data transmission request to the second communication device 200b. .

According to an embodiment, before the data transmission request is forwarded by the relay device 100 to the second communication device 200b, the relay device 100, in step S1225, the second communication device 200b for the data transmission request ) may transmit a wait command informing the first communication device 200a to wait for a response to the first communication device 200a.

Furthermore, preferably, when the data transmission request is received from the first communication device 200a, if the second communication device 200b is located outside the Bluetooth communication connection range of the relay device 100, the relay device 100 may not forward the data transmission request to the second communication device 200b until the second communication device 200b re-enters the Bluetooth communication connection range of the relay device 100 in step S1225.

After receiving the data transmission request, if the second communication device 200b allows to receive the file from the first communication device 200a, in step S1230 the second communication device 200b is the relay device 100 An acknowledgment signal (ie, an OK signal) indicating that the data transmission request has been received and a ready signal indicating that the file is ready to be received may be transmitted to the .

For example, the second communication device 200b may transmit a ready signal to the relay device 100 when it is ready to receive data after first transmitting a confirmation signal to the relay device 100 .

In step S1235 , the relay device 100 may transmit a confirmation signal indicating that the second communication device 200b is ready to receive the file to the first communication device 200a.

Through steps S1205 to S1235, an association for data transmission may be established between the first communication device 200a and the second communication device 200b.

In step S1240 , the first communication device 200a may transmit a related file to the relay device 100 . .

In step S1245 , the relay device 100 may forward data received from the first communication device 200a to the second communication device 200b.

For example, the relay device 100 may store data received from the first communication device 200a and forward the received file to the second communication device 200b.

For example, the relay device 100 stores data received from the first communication device 200a, and until the entire file from the first communication device 200a is transmitted to the second communication device 200b, the stored Whenever the data reaches a predetermined amount, the stored data may be forwarded to the second communication device 200b. In particular, the relay device 100 may first store the entire file received from the first communication device 200a, and then forward the entire file stored at once to the second communication device 200b.

As another example, after the alliance is established between the first communication device 200a and the second communication device 200b, the relay device 100 connects the second communication device 200b to the relay device 100 for short-range wireless communication. If it is located outside the range, it stores the file received from the first communication device 200a, and as the second communication device 200b re-enters the short-range wireless communication connection range of the relay device 100, the second communication device 200b ) to forward the saved file.

In addition, the first communication device 200a and the second communication device 200b may notify that the file movement is complete.

Specifically, in step S1250 , the first communication device 200a may notify the relay device 100 that the file has been completely transmitted.

In step S1255, the relay device 100 may notify the second communication device 200b that the file transmission is complete.

In step S1260 , the second communication device 200b may notify the relay device 100 that the file reception has been completed.

In step S1265 , the relay device 100 may notify the first communication device 200a that the file reception has been completed.

13 illustrates an example of transmitting data between communication devices connected to the relay device 100 according to another embodiment of the present disclosure.

Referring to FIG. 13 , in step S1305 , a Bluetooth communication connection may be established between the first communication device 200a and the second communication device 200b and the relay device 100 , respectively.

In operation S1310 , the relay device 100 may transmit a data transmission request to the first communication device 200a to request data transmission to the second communication device 200b through the relay device 100 .

Specifically, the relay device 100 transmits the file stored in the first communication device 200a to the first communication device 200a through the relay device 100 to the second communication device 200b through the data transmission request. you can request

For example, the relay device 100 may receive a list of files stored in the first communication device 200a from the first communication device 200a. For example, the first communication device 200a and the relay device 100 may synchronize metadata information of a file stored in the first communication device 200a. A method of synchronizing metadata information of a file using Bluetooth communication may be defined as a Bluetooth profile. The metadata information of the file may include, but is not limited to, identification information of the file, a file name, and the type and size of the file.

The relay device 100 may display a list of files stored in the first communication device 200a based on the received metadata information of the file. Upon receiving a user input for selecting one of the list of files, the relay device 100 may request the selected file from the first communication device 200a.

In step S1315 , the first communication device 200a may transmit a confirmation signal for informing the relay device 100 that the data transmission request has been accepted by the first communication device 200a.

In step S1320 , the relay device 100 may request the second communication device 200b to receive data of the first communication device 200a.

In this case, the relay device 100 may transmit information about the Bluetooth address and data of the first communication device 200a to the second communication device 200b.

In step S1325 , the second communication device 200b may transmit a confirmation signal indicating that the data reception request has been received and a preparation signal indicating that the file is ready to receive to the relay device 100 .

For example, after the data reception request is received, when receiving a user input permitting reception of the file of the first communication device 200a, the second communication device 200b sends a confirmation signal to the relay device 100 and a ready signal.

In step S1330, the relay device 100 informs the first communication device 200a that the second communication device 200b is ready to receive the file, and instructs the first communication device 200a to transmit the file. A data transmission command may be transmitted to the first communication device 200a.

Through steps S1305 to S1330, an association for data transmission may be established between the first communication device 200a and the second communication device 200b.

Thereafter, in step S1335 , the first communication device 200a may transmit the related file to the relay device 100 . .

In operation S1340, the relay device 100 may forward the data received from the first communication device 200a to the second communication device 200b.

For example, the relay device 100 may store data received from the first communication device 200a and forward the received file to the second communication device 200b.

Also, for example, the relay device 100 stores the data received from the first communication device 200a, and until the entire file from the first communication device 200a is transmitted to the second communication device 200b. , may forward the stored data to the second communication device 200b whenever the stored data reaches a predetermined amount. In particular, the relay device 100 may first store the entire file received from the first communication device 200a, and then forward the entire file stored at once to the second communication device 200b.

As another example, after the alliance is established between the first communication device 200a and the second communication device 200b, the relay device 100 connects the second communication device 200b to the relay device 100 for short-range wireless communication. If it is located outside the range, it stores the file received from the first communication device 200a, and as the second communication device 200b re-enters the short-range wireless communication connection range of the relay device 100, the second communication device 200b ) to forward the saved file.

In addition, the first communication device 200a and the second communication device 200b may notify that the file movement is complete.

Specifically, in step S1345 , the first communication device 200a may notify the relay device 100 that the file has been completely transmitted.

In step S1350 , the relay device 100 may notify the second communication device 200b that the file transmission is complete.

In step S1355 , the second communication device 200b may notify the relay device 100 that the file reception has been completed.

In step S1360, the relay device 100 may notify the first communication device 200a that the file reception is complete.

Embodiments of transmitting data between the first communication device 200a and the second communication device 200b through the relay device 100 have been described with reference to FIGS. 12 and 13 . However, the present disclosure is not limited to the above embodiment. For example, although the data transmission request is requested by the relay device 100 or the communication device in order to transmit data in FIGS. 12 and 13, it is not limited to the present disclosure and in order for the communication device to receive data, It will be apparent to one of ordinary skill in the art that data transmission may be requested by a communication device.

14 is a flowchart illustrating a method for transmitting data between communication devices connected to the relay device 100 according to another embodiment of the present disclosure.

In step S1410 , a short-range wireless communication connection may be established between at least two communication devices and the relay device 100 .

In step S1420, after the short-range wireless communication connection is established, an association between two communication devices among the at least two communication devices may be established. Here, the two communication devices may include a first communication device 200a and a second communication device 200b.

Steps S1410 and S1420 include detailed operations performed in steps S1010 and S1020 of FIG. 10 .

In step S1430, the relay device 100 receives a user input for selecting data to be transmitted from the first communication device 200a to the second communication device 200b, and transmits the selected data to the second communication device 200b It is possible to control the first communication device 200a to do so. .

Furthermore, the selected data may have the format of a file. Accordingly, in step S1430 , the relay device 100 may select a file to be transmitted from the first communication device 200a to the second communication device 200b through FTP (File Transfer Protocol). In this way, the file movement between two communication devices can be efficiently controlled by the relay device 100 .

15-17 illustrate three embodiments of transferring data between communication devices (ie, first communication device 200a and second communication device 200b), according to an exemplary embodiment of the present disclosure. .

In the three embodiments, a detailed procedure for transmitting a file through Bluetooth communication between the relay device 100 and two communication devices performing short-range wireless communication will be described. However, it is not limited to this embodiment.

The data transmitted between the two communication devices may be of a type other than a file format, and the short-range wireless communication may also be a Wi-Fi Direct communication or other suitable short-range wireless communication. In addition, although FIGS. 15 to 17 show only two communication devices capable of transmitting data between each other, in addition to the first communication device 200a and the second communication device 200b, other communication devices connected to the relay device 100 There may be devices.

15 illustrates an example of transmitting data between communication devices connected to the relay device 100 according to another embodiment of the present disclosure.

Referring to FIG. 15 , in step S1505 , a Bluetooth communication connection may be individually established between the relay device 100 and the first communication device 200a and the second communication device 200b.

In step S1510, the relay device 100 sends an address acquisition command for acquiring the Bluetooth address of the second communication device 200b and the Bluetooth profile supported by the second communication device 200b to the second communication device 200b. can be transmitted

In step S1515 , the second communication device 200b transmits response information including the Bluetooth address of the second communication device 200b and the Bluetooth profile supported by the second communication device 200b to the relay device 100 . can

In step S1520, the relay device 100 may forward the Bluetooth address and Bluetooth profile of the second communication device 200b received from the second communication device 200b to the first communication device 200a.

In step S1525 , the first communication device 200a may transmit a confirmation signal notifying that the Bluetooth address and the Bluetooth profile of the second communication device 200b have been received to the relay device 100 .

In step S1530, the relay device 100 may request the first communication device 200a to perform Bluetooth pairing with the second communication device 200b (ie, Bluetooth pairing request).

In step S1535 , the first communication device 200a may transmit, to the relay device 100 , a confirmation signal indicating that the Bluetooth pairing request has been received.

In step S1540, the first communication device 200a may transmit a request (Bluetooth pairing request) for performing Bluetooth pairing with the second communication device 200b to the second communication device 200b.

In step S1545, the second communication device 200b may transmit a confirmation signal indicating that the Bluetooth pairing request is accepted to the first communication device 200a.

Through steps S1505 to S1545, an association for data transmission may be established between the first communication device 200a and the second communication device 200b.

In operation S1550 , the relay device 100 may transmit an object exchange connection request instructing to establish an object exchange (OBEX) connection with the relay device 100 to the first communication device 200a.

The object exchange connection may be a standard for exchanging objects using wireless communication between two devices. The object exchange connection may be performed according to an object exchange file transfer protocol (OBEX File Transfer Protocol).

In step S1555 , the first communication device 200a may establish an object exchange connection with the relay device 100 and transmit a confirmation signal indicating that the object exchange connection has been established to the relay device 100 .

In step S1560 , the relay device 100 may transmit a permission acquisition command for acquiring permission for checking files in the first communication device 200a to the first communication device 200a.

In step S1565 , the first communication device 200a may transmit a confirmation signal allowing to check the files in the first communication device 200a to the relay device 100 .

The relay device 100 may receive metadata information of files in the first communication device 200a from the first communication device 200a based on the confirmation signal. Then, the relay device 100 may display a list of files in the first communication device 200a based on the received metadata information. In this case, the relay device 100 may display the size, type, and storage path of the files as well as the file names of the files. A user input for selecting one of the displayed list of files may be received.

In step S1570, the relay device 100, in order to inform the first communication device 200a that the selected file should be transmitted to the second communication device 200b, the first communication device 200a corresponding to the selected file You can send the file storage path.

In operation S1575 , the first communication device 200a may transmit, to the relay device 100 , a confirmation signal informing the relay device 100 that the file storage path has been received.

In step S1580 , the relay device 100 may transmit an exchange object acquisition command for transmitting the selected file to the second communication device 200b to the first communication device 200a.

In step S1585, the first communication device 200a may transmit the file to the second communication device 200b.

In addition, the first communication device 200a may notify the second communication device 200b of completion of the file movement.

Specifically, in step S1590, the first communication device 200a may transmit, to the second communication device 200b, a confirmation signal indicating that the file has been completely transmitted.

In step S1595, the second communication device 200b may transmit, to the first communication device 200a, a confirmation signal indicating that the file has been completely received.

According to the embodiment, the procedures performed in steps S1505 to S1595, in which, by the relay device 100, a file to be transmitted or to be transmitted is selected, and the selected file is transmitted by the first communication device 200a, a file specified as FTP It can follow the movement profile.

16 illustrates an embodiment of transmitting data between communication devices connected to the relay device 100 according to another embodiment of the present disclosure.

Referring to FIG. 16 , in step S1605 , a Bluetooth communication connection may be individually established between the relay device 100 and the first communication device 200a and the second communication device 200b.

In step S1610 , the second communication device 200b may request from the relay device 100 the Bluetooth addresses and Bluetooth profiles of other communication devices connected to the relay device 100 .

In step S1615, the second communication device 200b establishes the Bluetooth address of the second communication device 200b, the Bluetooth profile supported by the second communication device 200b and the second communication device 200b Bluetooth pairing. Bluetooth pairing information including a Bluetooth address of one communication device (ie, the first communication device 200a) may be transmitted to the relay device 100 .

In step S1620, the relay device 100 may forward Bluetooth pairing information to the first communication device 200a.

In step S1630 , the first communication device 200a may transmit a confirmation signal indicating that the Bluetooth pairing information has been received to the relay device 100 .

In step S1635 , the first communication device 200a may transmit a request (ie, a Bluetooth pairing request) for performing Bluetooth pairing with the second communication device 200b to the second communication device 200b.

In step S1640 , the second communication device 200b may transmit a confirmation signal for informing the first communication device 200a that the Bluetooth pairing request has been accepted to the first communication device 200a.

In step S1645, the second communication device 200b may transmit, to the relay device 100, Bluetooth pairing completion information indicating that Bluetooth pairing has been established between the first communication device 200a and the second communication device 200b.

In step S1650 , the relay device 100 may transmit, to the second communication device 200b, a confirmation signal for notifying the second communication device 200b that the Bluetooth pairing completion information has been received.

Through steps S1605 to S1650, an association for data transmission may be established between the first communication device 200a and the second communication device 200b.

In step S1655 , the second communication device 200b may transmit an object exchange connection request to the first communication device 200a so that the first communication device 200a prepares for establishment of an object exchange connection.

In operation S1660, the first communication device 200a may transmit a confirmation signal indicating that the object exchange connection has been established to the second communication device 200b.

In step S1665, the second communication device 200b may transmit to the first communication device 200a a permission acquisition command for acquiring permission for checking files in the first communication device 200a.

In step S1670 , the first communication device 200a may transmit a confirmation signal to the second communication device 200b for notifying that it has accepted to check the files in the first communication device 200a .

In step S1675 , the second communication device 200b sends the selected file to the first communication device 200a in order to inform the first communication device 200a that the selected file should be transmitted to the second communication device 200b. The corresponding file storage path can be transmitted.

In operation S1680, a confirmation signal informing the relay device 100 that the file storage path has been received may be transmitted to the first communication device 200a and the second communication device 200b.

In step S1685 , the second communication device 200b may transmit an exchange object acquisition command to the first communication device 200a so that the first communication device 200a prepares to transmit the selected file.

In operation S1690, the first communication device 200a may transmit the selected file to the second communication device 200b.

In addition, the first communication device 200a and the second communication device 200b may notify completion of the file movement.

Specifically, in step S1693, the first communication device 200a may transmit, to the second communication device 200b, a completion signal informing the second communication device 200b that the file has been completely transmitted.

In step S1697, the second communication device 200b may transmit, to the first communication device 200a, a completion signal informing the first communication device 200a that the file has been completely received.

The above procedures performed in steps S1605 to S1697, in which, by the relay device 100 , a file to be transmitted or to be transmitted is selected, and by the first communication device 200a , the selected file is transmitted, file movement specified by FTP You can follow the profile.

17 illustrates an embodiment of transmitting data between communication devices connected to the relay device 100 according to another embodiment of the present disclosure.

Referring to FIG. 17 , in step S1705 , a Bluetooth communication connection may be individually established between the relay device 100 and the first communication device 200a and the second communication device 200b.

In step S1710 , the second communication device 200b may request from the relay device 100 the Bluetooth addresses and Bluetooth profiles of other communication devices connected to the relay device 100 .

In step S1715, in response to the received request, the relay device 100 may transmit a response including the Bluetooth address of the first communication device 200a connected to the relay device 100 to the second communication device 200b. . .

In step S1720, the second communication device 200b establishes the Bluetooth address of the second communication device 200b, the Bluetooth profile supported by the second communication device 200b and the second communication device 200b Bluetooth pairing. Bluetooth pairing information including a Bluetooth address of one communication device (ie, the first communication device 200a) may be transmitted to the relay device 100 .

In step S1725, the relay device 100 may forward the Bluetooth pairing information of the second communication device 200b to the first communication device 200a.

In step S1730 , the first communication device 200a may transmit a confirmation signal indicating that the Bluetooth pairing information has been received to the relay device 100 .

In step S1735 , the first communication device 200a may transmit a request (ie, a Bluetooth pairing request) for performing Bluetooth pairing with the second communication device 200b to the second communication device 200b.

In step S1740, the second communication device 200b transmits a confirmation signal to the first communication device 200a to inform the first communication device 200a that the Bluetooth pairing request is authorized by the second communication device 200b. can

Through steps S1705 to S1740, an association for data transmission may be established between the first communication device 200a and the second communication device 200b.

In step S1750 , the second communication device 200b may transmit an object exchange connection request to the first communication device 200a so that the first communication device 200a prepares to establish an object exchange connection.

In step S1755, the first communication device 200a establishes an object exchange connection with the second communication device 200b, and sends a confirmation signal informing the second communication device 200b that the object exchange connection has been established to the second communication device ( 200b).

In step S1760, the second communication device 200b may transmit to the first communication device 200a a permission acquisition command for acquiring permission for checking files in the first communication device 200a.

In step S1765 , the first communication device 200a may transmit a confirmation signal to the second communication device 200b for informing that permission is granted for checking the files in the first communication device 200a .

In step S1770, the second communication device 200b sends the selected file to the first communication device 200a to inform the first communication device 200a that the selected file should be transmitted to the second communication device 200b. The corresponding file storage path can be transmitted.

In step S1775, a confirmation signal informing the second communication device 200b that the file storage path has been received may be transmitted to the first communication device 200a and the second communication device 200b.

In step S1780 , the second communication device 200b may transmit an exchange object acquisition command to the first communication device 200a so that the first communication device 200a prepares to transmit the selected file.

In step S1785 , the first communication device 200a may transmit the selected file to the second communication device 200b.

In addition, the first communication device 200a and the second communication device 200b may notify completion of the file movement.

Specifically, in step S1790 , the first communication device 200a may transmit a confirmation signal to the second communication device 200b informing the second communication device 200b that the file has been completely transmitted.

In step S1795, the second communication device 200b may transmit, to the first communication device 200a, a confirmation signal informing the first communication device 200a that the file has been completely received.

The above procedures performed in steps S1705 to S1795, in which, by the second communication device 200b, a file to be transmitted or to be transmitted is selected, and by the first communication device 200a, the selected file is transmitted, the file specified as FTP It can follow the movement profile.

An embodiment of transmitting data between the first communication device 200a and the second communication device 200b controlled by the relay device 100 has been described with reference to FIGS. 15 and 17 . However, the present disclosure is not limited to the above examples. For example, although data transmission is requested by the relay device 100 in FIGS. 15 and 17 , the present disclosure is not limited and in order for the relay device 100 to receive data, data transmission is requested by the communication device. It may be obvious to those skilled in the art.

18 illustrates a block diagram of a system for the relay device 100 to transmit data between a plurality of communication devices, according to an embodiment of the present disclosure.

As shown in FIG. 18 , according to an embodiment of the present disclosure, a system for transmitting data between communication devices connected to the relay device 100 is at least connected to the relay device 100 and the relay device 100 . It may include two communication devices (including a first communication device 200a, a second communication device 200b, etc.).

It is obvious that other communication devices other than the first communication device 200a and the second communication device 200b may be shown in FIG. 18 .

Specifically, the relay device 100 establishes a short-range wireless communication connection with at least two communication devices in order to prepare for data transmission between the first communication device 200a and the second communication device 200b, and at least two An association may be established between two communication devices (ie, the first communication device 200a and the second communication device 200b) among the communication devices of .

Preferably, after an association is established between the first communication device 200a and the second communication device 200b, the relay device 100 receives data from the first communication device 200a, and transmits the received data to the second communication device 200a. forward to the communication device 200b.

Preferably, after an association is established between the first communication device 200a and the second communication device 200b, the relay device 100 is to be transmitted from the first communication device 200a to the second communication device 200b. The first communication device 200a may be controlled to select data and transmit the selected data to the second communication device 200b. .

Preferably, after an association is established between the first communication device 200a and the second communication device 200b, the first communication device 200a transmits the selected data to the second communication device 200b, or the second communication The device 200b selects data to be transmitted from the first communication device 200a to the second communication device 200b, and controls the first communication device 200a to transmit the selected data to the second communication device 200b can do.

In the system shown in FIG. 18 , the relay device 100 and the communication device may operate according to the detailed embodiments disclosed in FIGS. 1 to 6 and 10 to 17 .

As described above, in the apparatus, method, and system for transmitting data between communication devices connected to the relay device 100 , the data transmission between the communication devices is, through a connection to the relay device 100 , the relay device 100 may be possible by gaining control over data transfer between communication devices.

19 shows a block diagram of a relay device 100 according to an embodiment of the present invention.

As shown in FIG. 19 , the relay device 100 according to an embodiment may include a control unit 170 , a communication unit 130 , a user input unit 145 , and a display unit 110 . However, not all illustrated components are essential components. The relay device 100 may be implemented by more components than the illustrated components, and the relay device 100 may be implemented by fewer components.

The communication unit 130 may transmit/receive data to and from an external device.

Also, the communication unit 130 may establish a short-range wireless communication connection with the communication device. Short-range wireless communication may include, but is not limited to, Bluetooth communication and Wi-Fi Direct communication.

The controller 170 may control components constituting the relay device 100 .

For example, the control unit 170 transmits, to the first communication device 200a, information on at least one device that can be connected to the relay device 100, and from the first communication device 200a, at least one Receives a data relay request requesting to transmit data to the second communication device 200b selected by the user of the first communication device 200a among the devices, and in response to the data relay request, the first communication device 200a ) may control the short-range wireless communication unit to transmit data received from the second communication device 200b.

In addition, as the control unit 170 receives a data relay request for the second communication device 200b from the first communication device 200a, a short-range wireless communication connection is established between the second communication device 200b and the short-range wireless communication unit. to store the data received from the first communication device 200a in the relay device 100 to determine whether the You can control the storage.

Although not shown in FIG. 19 , the relay device 100 may further include a storage unit (not shown). Also, the controller 170 may store data received from the first communication device 200a in a storage unit (not shown).

In addition, the controller 170 stores the data received from the first communication device 200a, and then, as a short-range wireless communication connection is established between the second communication device 200b and the short-range wireless communication unit, the stored data is transferred to the second The communication unit 130 may be controlled to transmit to the communication device 200b. ,

In addition, as the controller 170 receives a data relay request for the second communication device 200b from the first communication device 200a, the control unit 170 sends the data of the first communication device 200a to the second communication device 200b. transmits a confirmation request for confirming whether to receive, and based on response information to the confirmation request received from the second communication device 200b, from the first communication device 200a to the second communication device 200b The communication unit 130 may be controlled to transmit the received data.

When a short-range wireless communication connection is established between the second communication device 200b and the short-range wireless communication unit, the display 110 may display identification information of data stored in the relay device 100 .

The connection setting unit 180 shown in FIG. 7 may be included in the communication unit 130 of FIG. 19 , the association setting unit 185 shown in FIG. 7 , the data forwarding unit 190 shown in FIG. 8 , and data transmission. The control unit 195 may be included in the control unit 170 of FIG. 19 .

20 shows a block diagram of a relay device 100 or communication device 200, according to an embodiment of the present invention.

As shown in FIG. 20 , the configuration of the relay device 100 or the communication device 200 is, for example, a mobile phone, a tablet PC, a PDA, an MP3 player, a kiosk, an electronic picture frame, a navigation device, a digital TV, a wrist watch It may be applied to various types of devices such as a wrist watch or a wearable device such as a head-mounted display (HMD).

According to FIG. 20 , the relay device 100 or the communication device 200 includes a display unit 110 , a control unit 170 , a memory 120 , a GPS chip 125 , a communication unit 130 , a video processor 135 , At least one of an audio processor 140 , a user input unit 145 , a microphone unit 150 , an imaging unit 155 , a speaker unit 160 , and a motion sensing unit 165 may be included.

The display unit 110 may include a display panel 111 and a controller (not shown) for controlling the display panel 111 . The display panel 111 includes various types of displays such as a liquid crystal display (LCD), an organic light emitting diode (OLED) display, an active-matrix organic light-emitting diode (AM-OLED), and a plasma display panel (PDP). can be The display panel 111 may be implemented to be flexible, transparent, or wearable. The display unit 110 may be provided as a touch screen (not shown) by being coupled to the touch panel 147 of the user input unit 145 . For example, the touch screen (not shown) may include an integrated module in which the display panel 111 and the touch panel 147 are coupled in a stacked structure.

The memory 120 may include at least one of an internal memory (not shown) and an external memory (not shown).

The built-in memory includes, for example, a volatile memory (eg, dynamic RAM (DRAM), static RAM (SRAM), synchronous dynamic RAM (SDRAM), etc.), a non-volatile memory (eg, One Time Programmable ROM (OTPROM)). ), Programmable ROM (PROM), Erasable and Programmable ROM (EPROM), Electrically Erasable and Programmable ROM (EEPROM), Mask ROM, Flash ROM, etc.), hard disk drive (HDD), or solid state drive (SSD). may include According to an embodiment, the controller 170 may load a command or data received from at least one of the non-volatile memory or other components into the volatile memory and process it. Also, the controller 170 may store data received or generated from other components in a non-volatile memory.

The external memory includes, for example, at least one of CF (Compact Flash), SD (Secure Digital), Micro-SD (Micro Secure Digital), Mini-SD (Mini Secure Digital), xD (extreme Digital), and Memory Stick. may include

The memory 120 may store various programs and data used for the operation of the relay device 100 or the communication device 200 . For example, the memory 120 may temporarily or semi-permanently store at least a portion of content to be displayed on the lock screen.

The controller 170 may control the display 110 so that a part of the content stored in the memory 120 is displayed on the display 110 . In other words, the controller 170 may display a part of the content stored in the memory 120 on the display 110 . Alternatively, when a user gesture is made in one area of the display unit 110 , the controller 170 may perform a control operation corresponding to the user's gesture.

The controller 170 may include at least one of a RAM 171 , a ROM 172 , a CPU 173 , a graphic processing unit (GPU) 174 , and a bus 175 . RAM 171 , ROM 172 , CPU 173 , GPU 174 , and the like may be connected to each other through a bus 175 .

The CPU 173 accesses the memory 120 and performs booting using the O/S stored in the memory 120 . In addition, various operations are performed using various programs, contents, data, etc. stored in the memory 120 .

The ROM 172 stores an instruction set for system booting and the like. For example, in the mobile terminal 100, when a turn-on command is input and power is supplied, the CPU 173 copies the O/S stored in the memory 120 to the RAM 171 according to the command stored in the ROM 172, You can boot the system by running O/S. When booting is completed, the CPU 173 copies various programs stored in the memory 120 to the RAM 171 , and executes the programs copied to the RAM 171 to perform various operations. When the booting of the relay device 100 or the communication device 200 is completed, the GPU 174 displays the UI screen on the area of the display 110 . Specifically, the GPU 174 may generate a screen on which an electronic document including various objects such as content, icons, and menus is displayed. The GPU 174 calculates attribute values such as coordinate values, shape, size, color, etc., at which each object is to be displayed according to the layout of the screen. Also, the GPU 174 may generate screens of various layouts including objects based on the calculated attribute values. The screen generated by the GPU 174 may be provided to the display unit 110 and displayed on each area of the display unit 110 .

The GPS chip 125 may receive a GPS signal from a Global Positioning System (GPS) satellite and calculate the current location of the relay device 100 or the communication device 200 . The controller 170 may calculate the user's location using the GPS chip 125 when using a navigation program or when the user's current location is required.

The communication unit 130 may communicate with various types of external devices according to various types of communication methods. The communication unit 130 may include at least one of a Wi-Fi chip 131 , a Bluetooth chip 132 , a wireless communication chip 133 , and an NFC chip 134 . The control unit 170 may communicate with various external devices using the communication unit 130 .

The Wi-Fi chip 131 and the Bluetooth chip 132 may perform communication using a WiFi method and a Bluetooth method, respectively. In the case of using the Wi-Fi chip 131 or the Bluetooth chip 132, various types of connection information such as an SSID and a session key may be first transmitted and received, and then various types of information may be transmitted/received after communication connection using this. The wireless communication chip 133 refers to a chip that performs communication according to various communication standards such as IEEE, ZigBee, 3rd Generation (3G), 3rd Generation Partnership Project (3GPP), and Long Term Evoloution (LTE). The NFC chip 134 refers to a chip operating in a Near Field Communication (NFC) method using a 13.56 MHz band among various RF-ID frequency bands such as 135 kHz, 13.56 MHz, 433 MHz, 860 to 960 MHz, and 2.45 GHz.

The video processor 135 may process video data included in content received through the communication unit 130 or content stored in the memory 120 . The video processor 135 may perform various image processing, such as decoding, scaling, noise filtering, frame rate conversion, and resolution conversion, on video data.

The audio processor 140 may process audio data included in the content received through the communication unit 130 or the content stored in the memory 120 . In the audio processor 140 , various processes such as decoding, amplification, and noise filtering on audio data may be performed.

When a playback program for multimedia content is executed, the controller 170 drives the video processor 135 and the audio processor 140 to play the corresponding content. The speaker unit 160 may output audio data generated by the audio processor 140 .

The user input unit 145 may receive various commands from the user. The user input unit 145 may include at least one of a key 146 , a touch panel 147 , and a pen recognition panel 148 .

The key 146 may include various types of keys such as mechanical buttons, wheels, etc. formed in various areas such as the front, side, or rear of the main body of the relay device 100 or the communication device 200 .

The touch panel 147 may detect a user's touch input and output a touch event value corresponding to the sensed touch signal. When the touch panel 147 is combined with the display panel 111 to form a touch screen (not shown), the touch screen may be implemented with various types of touch sensors such as capacitive type, pressure sensitive type, and piezoelectric type. The capacitive type is a method of calculating touch coordinates by sensing micro-electricity generated by the user's body when a part of the user's body is touched on the touch screen surface using a dielectric coated on the touch screen surface. The decompression type includes two electrode plates embedded in the touch screen, and when the user touches the screen, the touch coordinates are calculated by detecting that the upper and lower plates of the touched point come into contact and current flows. A touch event occurring on a touch screen may be mainly generated by a human finger, but may also be generated by an object made of a conductive material capable of applying a change in capacitance.

The pen recognition panel 148 detects a pen proximity input or a touch input according to the operation of the user's touch pen (eg, a stylus pen, a digitizer pen), and detects a pen proximity event or pen A touch event can be output. The pen recognition panel 148 may be implemented by, for example, an EMR method, and may detect a touch or proximity input according to the proximity of the pen or a change in the intensity of an electromagnetic field due to the touch. In detail, the pen recognition panel 148 includes an electromagnetic induction coil sensor (not shown) having a grid structure and an electronic signal processing unit (not shown) that sequentially provides an AC signal having a predetermined frequency to each loop coil of the electromagnetic induction coil sensor. ) may be included. When a pen having a built-in resonance circuit is present in the vicinity of the loop coil of the pen recognition panel 148, a magnetic field transmitted from the loop coil generates a current based on mutual electromagnetic induction in the resonance circuit in the pen. Based on this current, an induced magnetic field is generated from the coil constituting the resonance circuit in the pen, and the pen recognition panel 148 detects the induced magnetic field from the loop coil in the signal receiving state, so that the pen approaching position or A touch position may be sensed. The pen recognition panel 148 may be provided with a predetermined area under the display panel 111 , for example, an area capable of covering the display area of the display panel 111 .

The microphone unit 150 may receive a user's voice or other sound and convert it into audio data. The controller 170 may use the user's voice input through the microphone unit 150 in a call operation, or convert it into audio data and store it in the memory 120 .

The imaging unit 155 may capture a still image or a moving image according to a user's control. The imaging unit 155 may be implemented in plurality, such as a front camera or a rear camera.

When the imaging unit 155 and the microphone unit 150 are provided, the control unit 170 performs a control operation according to a user voice input through the microphone unit 150 or a user motion recognized by the imaging unit 155 . may be For example, the relay device 100 or the communication device 200 may operate in a motion control mode or a voice control mode. When operating in the motion control mode, the controller 170 may activate the imaging unit 155 to capture an image of the user, track a change in the user's motion, and perform a corresponding control operation. When operating in the voice control mode, the controller 170 may operate in a voice recognition mode in which a user voice input through the microphone unit 150 is analyzed and a control operation is performed according to the analyzed user voice.

The motion detecting unit 165 may detect a movement of the main body of the relay device 100 or the communication device 200 . The relay device 100 or the communication device 200 may be rotated or tilted in various directions. In this case, the motion detecting unit 165 may detect motion characteristics such as a rotation direction, an angle, and a tilt using at least one of various sensors such as a geomagnetic sensor, a gyro sensor, and an acceleration sensor.

In addition, although not shown in FIG. 20 , in the embodiment, a USB port to which a USB connector can be connected in the relay device 100 or the communication device 200, or various external terminals such as a headset, mouse, LAN, etc. It may further include various external input ports, a DMB chip for receiving and processing digital multimedia broadcasting (DMB) signals, various sensors, and the like.

Names of components of the aforementioned relay device 100 or communication device 200 may vary. In addition, the relay device 100 or the communication device 200 according to the present disclosure may be configured to include at least one of the above-described components, and some components may be omitted or may further include additional other components. have.

An embodiment of the present invention may also be implemented in the form of a recording medium including instructions executable by a computer, such as a program module executed by a computer. Computer-readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. Also, computer-readable media may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transport mechanism, and includes any information delivery media.

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

Claims (16)

The relay device comprises: a short-range wireless communication unit for establishing a short-range wireless communication connection with the first communication device;
transmit to the first communication device information about at least one device connectable to the relay device, and, from the first communication device, a second communication selected by a user of the first communication device among the at least one device Receives a data relay request requesting that the device transmit data, and in response to the data relay request, controlling the short-range wireless communication unit to transmit data received from the first communication device to the second communication device including a control
In response to receiving the data relay request for the second communication device from the first communication device, the control unit transmits a confirmation request for confirming whether to receive the data of the first communication device to the second communication device, and ,
upon receiving an acceptance response from the second communication device accepting to receive data of the first communication device, sending the acceptance response to the first communication device, then receiving data of the first communication device; , to transmit the received data to the second communication device.
The method of claim 1,
Information about the at least one device,
A relay device comprising at least one of a device name of the at least one device, Bluetooth profile information, and information indicating whether a short-range wireless communication connection with the relay device is established.
The method of claim 1,
At least one device that can be connected to the relay device,
and a communication device in which pairing is performed with the relay device, and connection information is stored in the relay device.
4. The method of claim 3,
The connection information is
A relay device comprising at least one of a Bluetooth address and a link key of the communication device.
The method of claim 1,
The relay device is
Further comprising a storage unit for storing data received from the first communication device,
The control unit is
Upon receiving the data relay request for the second communication device from the first communication device, it is determined whether a short-range wireless communication connection is established between the second communication device and the short-range wireless communication unit, and the second communication When a short-range wireless communication connection is not established between the device and the short-range wireless communication unit, the relay device controls the storage unit to store the data received from the first communication device in the relay device.
6. The method of claim 5,
The control unit is
After storing the data received from the first communication device, as a short-range wireless communication connection is established between the second communication device and the short-range wireless communication unit, transmitting the stored data to the second communication device.
7. The method of claim 6,
The relay device is
When a short-range wireless communication connection is established between the second communication device and the short-range wireless communication unit, the relay device further comprising a display unit for displaying identification information of data stored in the relay device.
delete establishing, by the relay device, a short-range wireless communication connection with the first communication device;
transmitting, to the first communication device, information about at least one device capable of being connected to the relay device;
receiving, from the first communication device, a data relay request requesting to transmit data to a second communication device selected by a user of the first communication device among at least one device; and
transmitting data received from the first communication device to the second communication device in response to the data relay request;
Transmitting the data received from the first communication device to the second communication device in response to the data relay request,
in response to receiving a data relay request for the second communication device from the first communication device, transmitting a confirmation request for confirming whether to receive data of the first communication device to the second communication device;
Upon receiving an acceptance response from the second communication device accepting receiving the data of the first communication device, sending the acceptance response to the first communication device, and then receiving the data of the first communication device step; and
and transmitting data received from the first communication device to the second communication device.
10. The method of claim 9,
Information about the at least one device,
A data relay method comprising at least one of a device name of the at least one device, Bluetooth profile information, and information indicating whether a short-range wireless communication connection with the relay device is established.
10. The method of claim 9,
At least one device that can be connected to the relay device,
and a communication device in which pairing is performed with the relay device, and connection information is stored in the relay device.
12. The method of claim 11,
The connection information is
A data relay method comprising at least one of a Bluetooth address and a link key of the communication device.
10. The method of claim 9,
Transmitting the data received from the first communication device to the second communication device in response to the data relay request,
upon receiving the data relay request for the second communication device from the first communication device, determining whether a short-range wireless communication connection is established between the second communication device and the relay device; and
and storing data received from the first communication device in the relay device when a short-range wireless communication connection is not established between the second communication device and the relay device.
14. The method of claim 13,
Transmitting the data received from the first communication device to the second communication device in response to the data relay request,
After storing the data received from the first communication device, as a short-range wireless communication connection is established between the second communication device and the relay device, transmitting the stored data to the second communication device, data relay method.
15. The method of claim 14,
The data relay method is
When a short-range wireless communication connection is established between the second communication device and the relay device, the method further comprising: displaying identification information of data stored in the relay device.
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