KR20130009544A - Mobile terminal for transmitting and receiving contents, system for transmitting and receiving contents and method for transmitting and receiving contents - Google Patents

Abstract

PURPOSE: A content transceiving mobile terminal, a content transceiving system thereof, and a content transceiving method thereof are provided to easily perform wireless connection having security between devices by using NFC(Near Field Communication). CONSTITUTION: A first storage unit(150) stores content. A first tag read unit(110) obtains a credential through NFC with one or more mobile terminals, remote controllers(200), or fixing devices(300). A first registrar(120) performs authentication. A first control unit(130) controls connection settings. A first play unit(160) plays content based on the control of the first control unit. [Reference numerals] (100) Mobile terminal; (110) First tag reading unit; (120) First register; (130) First control unit; (140) First communication unit; (150) First storage unit; (160) First playback unit; (170) First tag generating unit; (200) Remote controller; (210) Second tag reading unit; (220) Second control unit; (230) Second communication unit; (240) Second tag generation unit; (300) Fixing device; (310) Third communication unit; (320) Third control unit; (330) Third register; (340) Third storage unit; (350) Third playback unit

Description

Mobile terminal, content transmission and reception system and method for transmitting and receiving content {MOBILE TERMINAL FOR TRANSMITTING AND RECEIVING CONTENTS, SYSTEM FOR TRANSMITTING AND RECEIVING CONTENTS AND METHOD FOR TRANSMITTING AND RECEIVING CONTENTS}

The present invention relates to a content sharing method, and more particularly, a content transmission and reception mobile terminal, content transmission and reception that can be applied to an N screen-based environment that can shorten the setting time for content sharing and automatically perform file sharing without user intervention. It relates to a system and a method for transmitting and receiving content.

The sharing of content among multiple devices through the N-screen concept is becoming popular. In particular, mobile devices such as smartphones produce content in an N-screen-based environment (for example, recording images on a smartphone's camera and transmitting them to a TV), and consume content (for example, set-top boxes). Send the recorded video to (Set-top-box) to your smartphone.

In the N-screen environment, the content sharing / streaming method can be roughly divided into a pairing step between devices including a device authentication and registration procedure, and a transport step including a shared content selection and call setup procedure.

In addition, in the existing local network-based content sharing and streaming method, the user establishes an independent network topology for pairing, the user selects a sharing target device and a sharing device, and authenticates the connection device. Steps.

Since the complicated connection between the devices requires frequent intervention by the user, it takes a long time to establish the actual data sharing, and there is a problem in that the file cannot be easily shared if the user does not have prior knowledge of the network configuration.

An object of the present invention to solve the above problems is to provide a content transmission and reception mobile terminal and a content transmission and reception system that can shorten the setting time for data sharing, and can automatically perform file sharing without user intervention.

In addition, another object of the present invention is to provide a content transmission and reception method executed in the content transmission and reception mobile terminal and the content transmission and reception system.

According to a mobile terminal for transmitting and receiving contents according to an embodiment of the present invention for achieving the above object, a first storage unit for storing content, at least one other mobile terminal, a remote controller or a fixed device and a near field wireless A first tag lead unit that acquires a credential through Near Field Communication, a first registrar that performs authentication by comparing the obtained credential with a previously stored credential, and the authentication is performed. A first control unit controlling a connection setting with at least one other mobile terminal or a fixed device that is completed, and controlling transmission or reception of content through the established connection; and a first playback unit for reproducing content based on the control of the first control unit; At least one other mobile terminal or a fixed device on which the authentication is completed based on the control of the controller and the first controller; Set the texture and includes a first communication unit for transmitting or receiving the device with the content that the connection has been established.

Here, the first registrar may generate a credential at each preset period or generate a credential every short-range wireless communication.

Here, the content transmission and reception mobile terminal may further include a first tag generation unit for tagging the credentials obtained by obtaining the credentials generated from the first registrar and providing them to the first controller.

Here, the first tag lead unit may obtain the extracted credentials after extracting the credentials from the tag information read by reading the tag through short-range wireless communication with at least one other mobile terminal, the remote controller, or the fixing device. have.

The first controller may control transmission or reception of content by determining whether content is being played in the first playback unit and the corresponding device after the connection with the corresponding device is established.

Here, when the content is being played by the first playback unit and the content is not being played by the corresponding device, the first control unit initializes a transmission protocol for transmitting the content to the corresponding device and encodes the encoding algorithm information of the content being played. And controlling transmission of the content being played.

Here, when the content is not being played by the first playback unit and the content is being played by the corresponding device, the first control unit may initialize a transport protocol for receiving content from the corresponding device and initialize the first storage unit. have.

Here, when the content is being played by the first playback unit and the content is being played by the corresponding device, the first controller generates a menu for selecting whether to transmit or receive the content by generating a menu for the first playback. Can provide to the department.

In addition, according to the content transmission and reception system according to an embodiment of the present invention for achieving another object of the present invention, by acquiring the credentials of at least one mobile terminal, another remote controller or another fixed device through short-range wireless communication, Establish a connection with the corresponding device among the at least one mobile terminal or another fixed device by using the remote controller transmitting the obtained credentials and the credentials received from the remote controller, and transmit the content with the corresponding device with which the connection is established, or And a fixture for receiving.

Here, the remote controller may include a second tag generation unit for tagging a pre-encoded credential, a second control unit for generating an operation control signal including the acquired credential corresponding to a key operation of a user; And a second communication unit configured to transmit the generated operation control signal to the fixed device and to perform short-range wireless communication with the at least one mobile terminal, another remote controller, or another fixed device.

The remote controller may be configured to provide a extracted credential after extracting a credential from a tag information read by a tag through short-range wireless communication with the at least one mobile terminal, another remote controller, or another fixed device. It may further include a two tag lead portion.

Here, the fixing device may include: a third storage unit for storing contents, a third registrar configured to receive the credentials transmitted from the remote controller and to perform authentication by comparing the received credentials with previously stored credentials; A third control unit controlling a connection setting with at least one mobile terminal or another fixed device for which authentication is completed, and controlling transmission or reception of content through the established connection; and at least the authentication is completed based on control of the third control unit. It may include a first communication unit for establishing a connection with one mobile terminal or another fixed device and transmitting or receiving content, and a first playback unit for reproducing the content based on the control of the first control unit.

In addition, in the method for transmitting and receiving content according to an embodiment of the present invention for achieving another object of the present invention, the method comprising the steps of acquiring the credentials through short-range wireless communication with at least one other mobile terminal, a remote controller or a fixed device; Comparing the obtained credentials with pre-stored credentials to perform authentication, establishing a connection with at least one other mobile terminal or a fixed device for which the authentication is completed, and performing at least the authentication completed through the established connection. Transmitting or receiving content with one other mobile terminal or fixed device.

In addition, according to the content transmission and reception method according to an embodiment of the present invention for achieving another object of the present invention, in the content transmission and reception method of the content transmission and reception system consisting of a remote controller and a fixed device, the remote controller is short-range wireless communication Acquiring the credentials of at least one mobile terminal, another remote controller or another fixed device through the device, transmitting the obtained credentials to the fixed device, and using the credentials transmitted from the remote controller. And establishing a connection with a corresponding device among the at least one terminal or another fixed device, and transmitting or receiving content with the corresponding device with which the connection is established.

The transmitting of the acquired credentials to the fixed device may include: reading, by the remote controller, a tag through short-range wireless communication with at least one mobile terminal, another remote controller, or another fixed device, and the remote controller. The method may include extracting a credential from the read tag information, and transmitting the extracted credential to the fixed device.

The transmitting or receiving of the content may include: receiving, by the fixing device, the credentials transmitted from the remote controller, comparing the received credentials with pre-stored credentials, and performing authentication. The method may include establishing a connection with a corresponding device among at least one mobile terminal or another fixed device that has been completed, and transmitting or receiving content with the corresponding device with which the connection is established.

Here, in the transmitting or receiving of the content, after the connection with the corresponding device is established, the fixed device and the corresponding device may determine whether the content is being played and transmit or receive the content.

In the transmitting or receiving of the content, when the content is being played by the fixed device and the content is not being played by the corresponding device, the transmission protocol for transmitting the content to the corresponding device is initialized and the encoding algorithm of the content being played. Information and the content being played may be transmitted to the corresponding device.

The transmitting or receiving of the content may include initializing a transmission protocol for receiving content from the corresponding device and initializing a storage unit when the content is not being played by the fixed device and the content is being played by the corresponding device. .

According to the content transmission and reception mobile terminal, the content transmission and reception system and the content transmission and reception method according to an embodiment of the present invention, the credential obtained by the mobile terminal through at least one terminal and near field communication (NFC) The authentication is performed in comparison with the pre-stored credentials to be connected to at least one terminal to transmit the content currently being played in the mobile terminal to the at least one terminal, or the content currently being played in the at least one terminal from the at least one terminal. Can be received.

Therefore, by using short-range wireless communication, it is easier to perform a wireless connection with security between devices, and to shorten the setting time until sharing the content being played, and even if the user does not have prior knowledge on network setting. The content can be shared, improving usability.

1 is a conceptual diagram of a content transmission and reception mobile terminal and a content transmission and reception system according to an embodiment of the present invention.
2 is a block diagram illustrating a detailed configuration of a content transmission and reception mobile terminal and a content transmission and reception system according to an embodiment of the present invention shown in FIG. 1.
3 is a flowchart illustrating a content transmission / reception method according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted in an ideal or overly formal sense unless explicitly defined in the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In order to facilitate the understanding of the present invention, the same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

1 is a conceptual diagram of a content transmission and reception mobile terminal and a content transmission and reception system according to an embodiment of the present invention.

Referring to FIG. 1, a content transmission and reception process according to an embodiment of the present invention may be performed between a mobile terminal 100 and a content transmission and reception system, and the content system includes a remote controller 200 and a fixing device 300. Can be. The mobile terminal 100 may be configured with various devices capable of communicating and processing information, such as a mobile phone, a smart phone, a PDA, a PMP, and a pad-type terminal.

The fixing device 300 may be configured of various display devices having a function of playing content such as a television, a projector, and the like. The remote controller 200 may be configured with various devices for remotely controlling the fixing device 300 using a wireless interface such as infrared rays or radio frequency (RF).

In an embodiment of the present invention, while the content is being played in the mobile terminal 100 and the fixing device 300 is turned off, the mobile terminal 100 is connected to the fixing device 300 using the short range wireless communication. After establishing the connection, a process of transmitting the content being played in the mobile terminal 100 to the fixing device 300 and playing in the fixing device 300 will be described as an example.

First, the mobile terminal 100 acquires the credentials of the fixed device through the remote controller 200 and near field communication, and the obtained credentials are authenticated by comparing with the credentials of the mobile terminal 100. After performing the connection, the connection is established with the fixed device 300 which is completed, and the content currently being played is transmitted to the fixed device 300.

The remote controller 200 acquires the credentials of the mobile terminal 100 through short-range wireless communication with the mobile terminal 100 and operates corresponding to the user's key operation including the acquired credentials of the mobile terminal 100. The control signal is transmitted to the fixing device 300.

The fixed device 300 receives an operation control signal from the remote controller 200, extracts a credential from the received operation control signal, performs authentication by comparing with the stored credentials, and then authenticates the mobile device 100. Establish a connection and receive the content being played from the mobile device 100, and then play the received content. Here, the fixing device 300 may be configured to play the received content from the beginning, or may be configured to subsequently play the portion played in the mobile terminal 100.

2 is a block diagram illustrating a detailed configuration of a content transmission and reception mobile terminal and a content transmission and reception system according to an embodiment of the present invention shown in FIG. 1.

2, a content transmission and reception process according to an embodiment of the present invention may be performed between a mobile terminal 100 and a content transmission and reception system, and the content system includes a remote controller 200 and a fixing device 300. Can be.

The mobile terminal 100 includes a first tag lead unit 110, a first registrar 120, a first control unit 130, a first communication unit 140, a first first storage unit 150, and a first playback unit. 160 and the first tag generating unit 170.

The first tag lead unit 110 acquires the credentials of the fixing device 300 used to connect to the fixing device 300 by reading a tag in the remote controller 200 through the first communication unit 140.

Here, the tag read by the remote controller 200 is encoded with the credentials of the fixing device 300 used to connect to the fixing device 300.

The first registrar 120 acquires the credentials provided from the first tag lead unit 100 and performs authentication by comparing the credentials with the mobile terminal 100 stored in advance.

Here, when the mobile terminal 100 includes the tag generator, the first registrar 120 generates the credentials every predetermined period and stores the generated credentials, or generates the credentials every time between the wireless devices. Provide the credentials.

When the authentication is completed in the first registrar 120, the first controller 130 establishes a connection with the fixing device 300 through the first communication unit 140.

Here, the connection with the fixing device 300 may perform a network setup of the mobile terminal 100 and the fixing device 300 and establish a connection through the first communication unit 140.

When the connection with the fixing device 300 is established, the first control unit 130 determines whether the content is being played by the first reproducing unit 160 and the fixing device 300 to control transmission or reception of content being played. .

In detail, the first controller 130 sets the mobile terminal 100 as a transmission device when the content is being played by the first playback unit 160 and the content is not being played by the fixed device 300, and plays back the content. Initializes a transport protocol for transmission of the content being played and enables the encoding algorithm information of the content being played and the content being played to be transmitted to the fixed device 300 through the first communication unit 130.

Alternatively, when the connection with the fixing device 300 is established, the first control unit 130 is not playing the content in the first playback unit 160 and the content is playing in the fixing device 300. In step 300, the transmission protocol for receiving the content being played is initialized and the first storage unit 150 is initialized.

Alternatively, when the content is being played in the first playback unit 160 and the fixing device 300, the first control unit 130 may select a menu for selecting whether the mobile terminal 100 transmits or receives the content. It generates and provides it to the first playback unit 160.

Here, the user may select whether to transmit the content to the fixed device 300 or receive the content from the fixed device 300 by using the generated menu, and thus the content may be transmitted and received.

The first communication unit 140 may perform short-range wireless communication with the remote controller 200 based on the control of the first control unit 130. In addition, based on the control of the first controller 130, the connection with the fixing device 300 may be established and content may be transmitted.

Alternatively, the first communication unit 140 may receive content currently being played by the fixing device 300 from the fixing device 300 based on the control of the first control unit 130.

Here, the short range wireless communication between the first communication unit 140 and the remote controller 200 may be performed by a simple contact between the mobile terminal 100 and the remote controller 200, for example.

In addition, the communication between the first communication unit 140 and the fixing device 300 is 802.11x (for example, 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, etc.), Bluetooth, Zigbee (Zigbee), ultra-wideband It may be performed using various wireless communication technologies such as ultra wide band (UWB) and binary division multiple access (B-CDMA).

The first storage unit 150 receives the content in the form of a packet from the first control unit 130 and restores the content so that the content can be reproduced and provides the first control unit 130 to the first control unit 130.

Here, the first storage unit 150 may be configured as a large capacity nonvolatile storage device (eg, a hard disk drive), and a content usage record and a content list database (or EPG information) may be stored.

In addition, the first storage unit 150 may store various information set by a user such as an operating system for operating the mobile terminal 100 and application programs and favorites required for executing various contents. Can be.

The first playback unit 160 performs a function of executing content based on the control of the first control unit 130. The first playback unit 160 may include an audio and / or video codec corresponding to the encoded format to execute music, video, document, etc. encoded in a predetermined format. For example, the first reproducing unit 160 may be configured as an independent semiconductor chip, or may be configured as a software program that may be read and executed by the first control unit 130.

The first tag generator 170 tags the credentials obtained by obtaining the credentials generated from the first registrar 120.

The remote controller 200 may include a second tag lead unit 210, a second control unit 220, a second communication unit 230, and a second tag generation unit 240.

The second tag lead unit 210 acquires the tag of the mobile terminal 100 through the second communication unit 230, reads the obtained tag, and extracts and provides the credentials of the mobile terminal 100.

Here, in the tag obtained from the mobile terminal 100, the credentials of the mobile terminal 100 used for the connection with the fixing device 300 are encoded.

The second control unit 220 generates an operation control signal corresponding to a user's key operation including the credentials obtained by obtaining the credentials of the mobile terminal 100 provided from the second tag lead unit 210 and generating a second control signal. Transmission to the fixing device 300 through the communication unit 230.

The second communication unit 230 reads a tag from the mobile terminal 100 using short-range wireless communication and provides it to the second control unit 220. In addition, the second communication unit 230 may convert the operation control signal provided from the second control unit 220 into a wireless signal and then transmit the converted control signal to the fixing device 300.

Here, the communication between the second communication unit 230 and the mobile terminal 100 is 802.11x (for example, 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, etc.), Bluetooth, Zigbee (Uigbee), ultra-wideband communication (UWB: Ultra Wide Band), binary CDMA (B-CDMA: Binary Division Multiple Access), and the like. In addition, the second communication unit 230 may be configured as an infrared transmission / reception module or an RF transmission / reception module to communicate with the fixing device 300.

The second tag generation unit 240 tags the previously encoded credentials.

Here, when the remote controller 200 is active NFC, the two-way NFC communication with the mobile terminal is possible, and the tag information generated by the second tag generator 240 may be actively changed, but the remote controller 200 may be passive NFC. In the case of unidirectional NFC communication with respect to the mobile terminal, the tag information generated by the second tag generator 240 may not be actively changed.

The fixing device 300 may include a third communication unit 310, a third control unit 320, a third registrar 330, a third storage unit 340, and a third reproducing unit 350.

The third communication unit 310 receives a predetermined radio signal from the second communication unit 230 of the remote controller 200, converts the received radio signal into an electric signal corresponding thereto, and provides the same to the third control unit 320. . In addition, the third communication unit 310 may transmit content currently being played by the fixed device 300 to the first user terminal 100 based on the control of the third control unit 320.

Alternatively, the third communication unit 310 may receive content currently being played on the first user terminal 100 from the first user terminal 100.

Here, the predetermined wireless signal may include an operation control signal for the fixing device 300 and the credentials of the mobile terminal 100. In addition, the wireless signal may be a signal corresponding to an operation of a predetermined key among a plurality of keys provided in a key input unit (not shown) of the remote controller 200, and the electrical signal is recognized by the first control unit 320. It may have a form (for example, a bit string) that can be a manipulation control signal for controlling the operation of the fixing device (300).

The third controller 320 receives the operation control signal and the credentials provided from the third communication unit 310 and performs control corresponding thereto.

For example, the third control unit 320 controls the fixing device 300 to be turned on when an operation control signal for instructing the ON execution of the fixing device 300 is provided from the third communication unit 310, and the credentials are provided. In this case, the provided credentials are provided to the third registrar 330.

The third registrar 330 obtains the credentials of the mobile terminal 100 from the third controller 320 and performs authentication by comparing with the credentials of the pre-stored fixed device 300.

When the authentication is completed in the third registrar 330, the third controller 320 controls the connection setting with the mobile terminal 100 through the third communication unit 310.

After the connection with the mobile terminal 100 is established, the third controller 320 determines whether the content is being played by the third playback unit 350 and the mobile terminal 100 to control the transmission or reception of the content.

Specifically, after the connection is established with the mobile terminal 100, the third control unit 320 is fixed when the content is currently being played by the third playback unit 350 and the content is not being played by the mobile terminal 100. The encoding algorithm information of the content being played in the device 300 is provided to the mobile terminal 100 through the third communication unit 310. In addition, the third control unit 320 initializes the transmission protocol, extracts the content currently being reproduced from the third storage unit 340, packetizes it, and provides the third communication unit 310 with the reproduced content. 3 to be transmitted to the mobile terminal 100 through the communication unit 310.

Alternatively, when the connection with the mobile terminal 100 is established, the third controller 320 is currently playing the content in the third playback unit 350 and the content is being played in the mobile terminal 100. Initialize the delivery protocol for receiving content from the (100) and initializes the third storage unit 340.

Alternatively, when the third control unit 320 is connected to the mobile terminal 100, when the content is currently being played in the third playback unit 350 and the mobile terminal 100, the fixed device 300 displays the content. A menu for selecting whether to transmit or receive is generated and provided to the third playback unit 160.

Here, the user may select whether to transmit the content to the mobile terminal 100 or receive the content from the mobile terminal 100 using the generated menu, and thus the content may be transmitted and received.

The third storage unit 340 may store content provided from the third control unit 320, and a content usage record and a content list database (or EPG information) may be stored.

In addition, the third storage unit 340 may store various information set by a user, such as an operating system for the operation of the fixing device 300 and application programs and favorites required for executing various contents.

The third playback unit 350 performs a function of executing content based on the control of the third control unit 320. The third player 350 may include an audio and / or video codec corresponding to the encoded format to execute music, video, document, etc. encoded in a predetermined format. For example, the third reproducing unit 350 may be configured as an independent semiconductor chip, or may be configured as a software program that may be read and executed by the third control unit 320.

In the content transmission and reception system according to an embodiment of the present invention, the transmission and reception of content being played is described as being performed between the mobile terminal and the fixed device. In another embodiment of the present invention, transmission and reception of the content being played is performed by the mobile terminal and the mobile terminal, It can be carried out between the fixture and the fixture.

In addition, in the content transmission and reception system according to an embodiment of the present invention has been described that the transmission and reception of content is performed when the mobile terminal and the fixed device is configured in a one-to-one, but in another embodiment of the present invention is configured in a one-to-many In addition, transmission and reception of content being played may be performed through continuous NFC tagging.

3 is a flowchart illustrating a content transmission / reception method according to an embodiment of the present invention.

In an embodiment of the present invention, it is assumed that the remote controller 200 is active NFC.

It is assumed that the content is being played in the mobile device 100 and the fixing device 300 is turned off.

Referring to FIG. 3, the mobile terminal 100 reads a tag from the remote controller 200 through short range wireless communication (step 111).

Here, the short range wireless communication between the mobile terminal 100 and the remote controller 200 may be performed by a simple contact between the mobile terminal 100 and the remote controller 200, for example.

Here, the tag read from the remote controller 200 is encoded with the credentials of the fixing device 300 used for the connection with the fixing device 300.

The mobile terminal 100 extracts the credentials of the fixing device 300 used to connect with the fixing device 300 through tag reading in step 111 and obtains the extracted credentials (step 113).

At the same time, the remote controller 200 reads a tag in the mobile terminal 100 through short range wireless communication (step 112).

The remote controller 200 extracts the credentials of the mobile terminal 100 used to connect to the mobile terminal 100 through tag reading in step 112 (step 114), and outputs an operation control signal including the extracted credentials. Send to the fixture (step 115).

The mobile terminal 100 compares the provided credentials with the credentials of the mobile terminal 100 to perform authentication (step 116), and when the authentication is completed, establishes a connection with the fixing device 300 (step 117).

Here, the mobile terminal 100 generates the credentials every predetermined period and stores the generated credentials or generates the credentials every time P2P communication between NFC devices and stores the generated credentials.

At the same time, the fixing device 300 extracts the credentials from the operation control signal received from the remote controller 200 and acquires the extracted credentials (step 118).

The credentials obtained in step 118 are compared with the credentials of the pre-stored fixed device 300 to perform authentication (119), and when authentication is completed, establish a connection with the mobile terminal 100 (step 120).

When the connection with the fixed device 300 is established in step 117, the mobile terminal 100 prepares to transmit the content currently being played on the mobile terminal 100 (step 121). Specifically, the mobile terminal 100 initializes the transmission protocol, transmits encoding algorithm information of the content being played to the fixing device 300, and transmits the content being played to the fixing device 300.

If the content is currently being played in the fixing device 300 and the content is not being played in the mobile terminal 100, the mobile terminal 100 prepares to receive the content being played in the fixing device 300. In detail, the mobile terminal 100 initializes a storage unit for initializing a transmission protocol and storing content.

When the connection with the mobile terminal 100 is established in step 120, the fixing device 300 prepares to receive the content currently being played on the mobile terminal 100 (step 122). In detail, the fixing device 300 initializes a storage unit for initializing a transmission protocol and storing contents.

If content is not currently being played in the mobile terminal 100 and content is being played in the fixing device 300, the fixing device 300 prepares to transmit the content being played and transmits the content being played. In detail, the fixing device 300 initializes a transmission protocol, transmits encoding algorithm information of content being reproduced to the mobile terminal 100, and transmits content being reproduced to the mobile terminal 100.

When the content is ready to be transmitted in step 121, the content currently being played by the mobile device 100 is transmitted to the fixed device 300 (step 123).

When the preparation for receiving is completed in step 122, the fixing apparatus 300 receives the content from the mobile terminal 100 and plays the received content (step 124).

Here, the communication between the mobile terminal 100 and the fixing device 300 is 802.11x (for example, 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, etc.), Bluetooth, Zigbee (Zigbee), ultra-wideband communication (UWB: Ultra Wide Band), binary CDMA (B-CDMA: Binary Division Multiple Access), and the like.

In an embodiment of the present invention, the remote controller 200 is assumed to be active NFC, but in another embodiment of the present invention, the remote controller 200 may be passive NFC. Here, when the remote controller 200 is active NFC, the bidirectional communication with the mobile terminal is possible, and the tag information generated by the second tag generator 240 may be actively changed, but the remote controller 200 is passive NFC. In this case, unidirectional communication is possible with respect to the mobile terminal, and the tag information generated by the second tag generator 240 cannot be actively changed.

In the content transmission / reception method according to an embodiment of the present invention, the transmission and reception of content being played is described as being performed between the mobile terminal and the fixed device. In another embodiment of the present invention, transmission and reception of the content being played is performed by the mobile terminal and the mobile terminal, It can be carried out between the fixture and the fixture.

In addition, the content transmission and reception method according to an embodiment of the present invention has been described that the transmission and reception of content is performed when the mobile terminal and the fixed device is configured in a one-to-one, but in another embodiment of the present invention is configured in a one-to-many In addition, transmission and reception of content being played may be performed through continuous NFC tagging.

In addition, in the content transmission and reception method according to an embodiment of the present invention, when the content is currently playing in the mobile device 100 and the fixed device 300 is in a state where the power is turned off, the content transmission and reception method has been described as an example. In the content transmission and reception method according to another embodiment of the present invention, when both the mobile device 100 and the fixed device 300 are playing the content, the connection between the mobile terminal 100 and the fixed device 300 is established, and according to a user input. The target for transmitting the content and the target for receiving the content may be determined.

Although described with reference to the embodiments above, those skilled in the art will understand that the present invention can be variously modified and changed without departing from the spirit and scope of the invention as set forth in the claims below. Could be.

Claims (19)

A first storage unit for storing contents;
A first tag lead unit configured to acquire a credential through near field communication with at least one other mobile terminal, a remote controller, or a fixed device;
A first registrar performing authentication by comparing the obtained credentials with pre-stored credentials;
A first control unit controlling a connection setting with at least one other mobile terminal or a fixed device which has been authenticated, and controlling transmission or reception of content being played through the established connection;
A first reproducing unit reproducing content based on the control of the first control unit; And
A connection is established with at least one other mobile terminal or a fixed device that has been authenticated based on the control of the first controller, and the content being played on the mobile terminal is transmitted to the corresponding device where the connection is established or the connection is established; Content transmission and reception mobile terminal comprising a first communication unit for receiving the content being played in the device. The method of claim 1, wherein the first resist,
Contents transmission and reception mobile terminal, characterized in that for generating a credential for each predetermined period or for each short-range wireless communication. The mobile terminal of claim 2, wherein the content transmission and reception mobile terminal comprises:
And a first tag generator configured to tag the credentials obtained by acquiring the credentials generated from the first registrar and provide them to the first controller. The method of claim 1, wherein the first tag lead portion,
And extracting a credential from the tag information read by reading a tag through short-range wireless communication with at least one other mobile terminal, a remote controller or a fixed device, and then obtaining the extracted credential. The method of claim 1, wherein the first control unit,
After the connection is established with the corresponding device, the first playback unit and the corresponding device determine whether the content is being played, and control the transmission or reception of the content being played. The method of claim 5, wherein the first control unit,
If the content is being played by the first playback unit and the content is not being played by the corresponding device, the transmission protocol for the transmission of the content being played by the first playback unit is initialized and the encoding algorithm information and the reproduction of the content being played. Content transmission and reception mobile terminal, characterized in that for controlling the transmission of the content being. The method of claim 5, wherein the first control unit,
When the content is not being played by the first playback unit and the content is being played by the corresponding device, the content transmission / reception mobile of the mobile terminal comprises initializing a transmission protocol for receiving content being played by the corresponding device and initializing the first storage unit. Terminal. The method of claim 5, wherein the first control unit,
When the content is being played by the first playback unit and the content is being played by the corresponding device, the mobile terminal generates a menu for selecting whether to transmit or receive the content and provides it to the first playback unit. Mobile terminal for transmitting and receiving content. A remote controller for acquiring credentials of at least one mobile terminal, another remote controller, or another fixed device through short-range wireless communication, and transmitting the acquired credentials; And
And a fixed device configured to establish a connection with the corresponding device among the at least one mobile terminal or another fixed device using the credentials received from the remote controller, and to transmit or receive content with the corresponding device with which the connection is established. The method of claim 9, wherein the remote controller,
A second tag generator for tagging pre-encoded credentials;
A second controller configured to generate an operation control signal including the acquired credentials in response to a user's key operation; And
And a second communication unit which transmits the generated operation control signal to the fixed device and performs short-range wireless communication with the at least one mobile terminal, another remote controller, or another fixed device. The method of claim 10, wherein the remote controller,
And extracting a credential from the tag information read by reading a tag through short-range wireless communication with the at least one mobile terminal, another remote controller, or another fixed device, and further including a second tag lead unit providing the extracted credential. Content transmission and reception system, characterized in that. The method of claim 9, wherein the fixing device,
A third storage unit for storing contents;
A third registrar receiving the credentials transmitted from the remote controller and performing authentication by comparing the received credentials with pre-stored credentials;
A third control unit controlling a connection setting with at least one mobile terminal or another fixed device for which authentication is completed, and controlling transmission or reception of content through the established connection;
A first communication unit configured to establish a connection with at least one mobile terminal or another fixed device on which authentication is completed and to transmit or receive content based on the control of the third controller; And
And a first playback unit for playing back content based on the control of the first controller. In the content transmission and reception method of the mobile terminal,
Obtaining credentials through short-range wireless communication with at least one other mobile terminal, remote controller or fixed device;
Performing authentication by comparing the obtained credentials with pre-stored credentials;
Establishing a connection with at least one other mobile terminal or a fixed device on which the authentication is completed; And
And transmitting content being played on the mobile terminal to the corresponding device to which the connection is established or receiving content being played on the device to which the connection is established. In the content transmission and reception method of a content transmission and reception system comprising a remote controller and a fixed device,
Obtaining, by the remote controller, credentials of at least one mobile terminal, another remote controller, or another fixed device through short-range wireless communication, and transmitting the obtained credentials to the fixed device; And
And setting, by the fixed device, a connection with the corresponding device among the at least one terminal or another fixed device using the credentials transmitted from the remote controller, and transmitting or receiving content with the corresponding device with which the connection is established. How to send and receive. The method of claim 14, wherein the transmitting of the obtained credentials to the fixing device comprises:
Reading, by the remote controller, a tag through short-range wireless communication with at least one mobile terminal, another remote controller, or another fixed device;
Extracting, by the remote controller, credentials from the read tag information; And
And transmitting, by the remote controller, the extracted credentials to the fixed device. The method of claim 14, wherein transmitting or receiving the content comprises:
The fixing device receives the credentials transmitted from the remote controller and performs authentication by comparing the received credentials with previously stored credentials;
Establishing a connection with a corresponding device among at least one mobile terminal or another fixed device in which the authentication is completed; And
And transmitting or receiving content with the corresponding device with which the connection is established. The method of claim 16, wherein transmitting or receiving the content comprises:
After the connection with the corresponding device is established, determining whether content is being played by the fixed device and the corresponding device, and transmitting or receiving content being played. The method of claim 17, wherein transmitting or receiving the content comprises:
If the content is being played in the fixed device and the content is not being played, the corresponding device initializes a transmission protocol for transmission of the content being played in the fixed device, and encodes encoding algorithm information of the content being played and the content being played. Sending and receiving content, characterized in that for transmitting to the device. The method of claim 17, wherein transmitting or receiving the content comprises:
And when the content is not being played in the fixed device and the content is being played, the transmission protocol for receiving the content being played in the corresponding device is initialized and the storage unit is initialized.

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