KR101811607B1 - Operation control method of mobile terminal - Google Patents

Abstract

In the present specification, a terminal connects to a video display device through a network in order to smoothly share content between terminals connected to a group call, and transmits and receives control information related to playback of contents and contents. In particular, And to facilitate the sharing of contents through a group call. To this end, a method of controlling an operation of a mobile terminal according to an embodiment of the present invention includes: receiving a content from a first terminal connected to a group call; Transmitting the content to a video display device; Receiving first information related to control of the content reproduction from the video display device; And transmitting the first information to each of the counterpart terminals connected to the group call.

Description

[0001] OPERATION CONTROL METHOD OF MOBILE TERMINAL [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling an operation of a mobile terminal, and more particularly, to a method of group communication in a mobile terminal having a group call function.

A terminal can be divided into a mobile terminal and a stationary terminal depending on whether the terminal is movable. Again, the mobile terminal may be divided into a handheld terminal and a vehicle mount terminal according to whether the user can carry the mobile phone directly.

[0002] Recently, as mobile terminals provide various and complex functions, it is required to consider convenience of a user interface (UI) including a group call function and the like.

In the present specification, a terminal connects to a video display device through a network in order to smoothly share content between terminals connected to a group call, and transmits and receives control information related to playback of contents and contents. In particular, And it is an object of the present invention to provide a method of controlling an operation of a mobile terminal that allows a content to be easily shared through a group call.

According to another aspect of the present invention, there is provided a method of controlling an operation of a mobile terminal, the method comprising: receiving a content from a first terminal connected to a group call; Transmitting the content to a video display device; Receiving first information related to control of the content reproduction from the video display device; And transmitting the first information to each of the counterpart terminals connected to the group call.

In one embodiment, the operation control method further comprises: receiving second information related to control of the content reproduction from a second terminal connected to the group call; And transmitting the second information to the video display device.

In one embodiment, the operation control method includes: selecting a content to be transmitted; And transmitting the selected content to each of the counterpart terminals connected to the video display device and the group call.

In one embodiment, the operation control method further includes transmitting identification information of each of the counterpart terminals connected to the group call to the video display device, prior to the step of receiving the content from the first terminal .

In one embodiment, the step of transmitting the content to the video display device includes: generating a thumbnail of the content; Transmitting the generated thumbnail to the video display device; And transmitting the content to the video display device upon receiving a request to transmit the content corresponding to the thumbnail from the video display device.

According to an embodiment of the present invention, a mobile terminal transmits content received from another terminal connected to a group call to an image display device, receives information related to control of content playback from the image display device, It is possible to provide an interface for conveniently sharing the contents. Accordingly, there is an advantage that the mobile terminal not only can overcome the limitation of the display size of the mobile terminal, intuitively reproduce the content shared from each terminal connected to the group call, but also increase the usability of the content in the group call .

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2A is a perspective view of a mobile terminal according to an embodiment of the present invention.
2B is a rear perspective view of the mobile terminal shown in FIG. 2A.
3 is a diagram illustrating a process of controlling an operation of a mobile terminal according to an embodiment of the present invention.
4 is a conceptual diagram showing a content sharing system according to an embodiment of the present invention.
5A is a diagram illustrating a group call information display screen of a mobile terminal according to an exemplary embodiment of the present invention.
5B is a view showing a call information display screen of the video display device according to the embodiment of the present invention.
5C is a view illustrating a content selection screen of a mobile terminal according to an embodiment of the present invention.
6 is a diagram illustrating a transmission structure of contents according to an embodiment of the present invention.
7 is a diagram showing a transmission structure of control information for content reproduction according to an embodiment of the present invention.
FIG. 8 is a view showing a nurturing information table of contents according to an embodiment of the present invention.
9 is a view showing a content playback screen of the video display device according to an embodiment of the present invention.
10A is a diagram illustrating a group call information display screen of a mobile terminal according to an embodiment of the present invention.
10B is a diagram illustrating a storage structure of group call information according to an embodiment of the present invention.

Hereinafter, a mobile terminal related to embodiments of the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation. However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module.

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form a mutual layer structure, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the hit module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The memory 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the mobile terminal 100, or various command signals input by the user to the cradle may be transmitted It can be a passage to be transmitted to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control unit 180 itself.

According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

2A is a perspective view of an example of a mobile terminal or a mobile terminal according to the present invention.

The disclosed mobile terminal 100 has a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [

The cases may be formed by injection molding a synthetic resin, or may be formed to have a metal material such as stainless steel (STS) or titanium (Ti) or the like.

The display unit 151, the sound output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, the interface 170, and the like may be disposed in the front body 101 have.

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 151 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The user input unit 130 is operated to receive a command for controlling the operation of the portable terminal 100 and may include a plurality of operation units 131 and 132. The operation units 131 and 132 may be collectively referred to as a manipulating portion and may be employed in any manner as long as the user operates in a tactile manner.

The contents inputted by the first or second operation unit 131 or 132 may be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 To the touch recognition mode of the touch screen.

FIG. 2B is a rear perspective view of the portable terminal shown in FIG. 2A.

Referring to FIG. 2B, a camera 121 'may be further mounted on the rear surface of the terminal body, that is, the rear case 102. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 2A), and may be a camera having different pixels from the camera 121.

For example, the camera 121 may have a low pixel so that the face of the user can be photographed and transmitted to the other party in case of a video call or the like, and the camera 121 ' It is preferable to have a large number of pixels. The cameras 121 and 121 'may be installed in the terminal body so as to be rotatable or pop-upable.

A flash 123 and a mirror 124 are additionally disposed adjacent to the camera 121 '. The flash 123 illuminates the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to illuminate the user's own face or the like when the user intends to shoot himself / herself (self-photographing) using the camera 121 '.

An acoustic output 152 'may be additionally disposed on the rear surface of the terminal body. The sound output unit 152 'may implement the stereo function together with the sound output unit 152 (see FIG. 2A), and may be used for the implementation of the speakerphone mode during a call.

In addition to the antenna for talking and the like, a broadcast signal reception antenna 116 may be additionally disposed on the side of the terminal body. The antenna 116, which forms part of the broadcast receiving module 111 (see FIG. 1), can be installed to be able to be drawn out from the terminal body.

A power supply unit 190 for supplying power to the portable terminal 100 is mounted on the terminal body. The power supply unit 190 may be built in the terminal body or may be detachable from the outside of the terminal body.

The rear case 102 may further include a touch pad 135 for sensing a touch. The touch pad 135 may also be of a light transmission type like the display unit 151. [ In this case, if the display unit 151 is configured to output time information on both sides, the time information can be recognized through the touch pad 135 as well. The information output on both sides may be all controlled by the touch pad 135. [ Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may be disposed on the rear case 102 as well.

The touch pad 135 operates in correlation with the display portion 151 of the front case 101. The touch pad 135 may be disposed parallel to the rear of the display unit 151. The touch pad 135 may have a size equal to or smaller than that of the display unit 151.

Hereinafter, embodiments related to the terminal configured as above will be described with reference to the accompanying drawings. The following embodiments can be used alone or in combination with each other. In addition, the embodiments described below may be used in combination with the above-described user interface (UI).

Embodiments disclosed in this document can be implemented in the mobile terminal 100 described with reference to Figs. 1 to 2B.

Hereinafter, the operation of the mobile terminal according to the embodiment of the present invention and the operation of the mobile terminal 100 for implementing the same will be described in detail with reference to FIGS. 3 to 10B.

3 is a diagram illustrating a process of controlling an operation of a mobile terminal according to an embodiment of the present invention.

The term group call described in the present specification may mean a service in which a plurality of mobile terminals are connected and can talk or transmit / receive messages at the same time. For example, a process of connecting the mobile terminal 100 to such a group call will be described as follows.

First, the mobile terminal 100 inputs the telephone number (or identification information) of the first terminal among the mobiles of the group call and tries to connect the call. If the call connection is successful, the mobile terminal 100 enters a waiting state for entering a command for entering a group call. When the command is input, the mobile terminal 100 enters a group call service state. In this case, the exchange may connect the channels of the mobile terminal 100 and the counterpart terminals by driving the call mixer.

In this state, the mobile terminal 100 attempts to establish a call connection by inputting the telephone number of the second terminal among the mobiles of the group call. In this case, the exchange carries out a call connection with the second terminal while storing the channel information of the first terminal and the user by driving the call mixer. If the mobile terminal 100 succeeds in establishing a call connection with the second terminal, the call mixer connects channels of the mobile terminal 100, the first terminal and the second terminal so that they can perform a group call.

This process is repeated until the channels of the mobiles of the group call are all connected. After the mobile terminal 100 completes the call connection with all the group call counterparts, the mobile terminals 100 and the counterparts of the group call can perform the group call by the call mixer of the exchange.

The mobile terminal 100 is connected to a video display device via a wireless Internet module such as a WLAN (Wireless LAN) (Wi-Fi) or HSDPA (High Speed Downlink Packet Access) . Alternatively, the mobile terminal 100 may be connected to the image display device through a short distance communication method such as Bluetooth or ZigBee through the short distance communication module 114. In addition, the mobile terminal 100 may be connected to the video display device using various communication methods. For example, the mobile terminal 100 may be connected to the video display device through a wired interface method such as USB (Universal Serial Bus).

When the mobile terminals 100 and the mobiles of the group call are connected to the group call and the mobile terminal 100 is connected to the video display device, the controller 180 displays identification information of each of the mobiles connected to the group call Can be transmitted to the display device. The identification information of the terminal may include at least one information for identifying the terminal, such as a telephone number, a device identification number, a network identification number (MAC address or IP address), a user name, and an image of the user.

When the identification information of each of the counterpart terminals connected to the group call is transmitted to the video display device, the video display device displays the identification information of each of the counterpart terminals connected to the group call including the identification information of the mobile terminal 100 . Accordingly, the user can confirm the terminals connected to the group call through the screen of the video display device.

In this state, the controller 180 may receive the content from the specific terminal among the counterpart terminals connected to the group call (S100). The content may be stored in the specific terminal or may be the content received from the external device by the specific terminal and being played back on the specific terminal.

Further, after receiving the content, the control unit 180 can transmit the received content to the video display device (S200). The control unit 180 can transmit the received content along with the identification information of the specific terminal. Accordingly, the video display device receives the content, and includes the identification information of the mobile terminal 100 displayed on the screen, the identification information of each of the counterpart terminals connected to the group call, Can be displayed. In one example, the content received by the image display device may be displayed in an area adjacent to the content corresponding to the identification information of the specific terminal, so that the user can identify the content transmitted from the terminal do.

In this case, the control unit 180 may generate a thumbnail of the received content and transmit the generated thumbnail to the video display device before transmitting the received content to the video display device. When the control unit 180 receives a request for transmitting a content corresponding to a thumbnail from the video display device, the received content can be transmitted to the video display device.

Also, the control unit 180 may receive information related to control of content reproduction from the video display device (S300). The video display device can control the reproduction of the received content. For example, the video display device can perform control such as switching of the area where the content is displayed, size conversion of the content display, reproduction of the content, and stop of the content. The information related to the control of content reproduction may include at least one of the identification information of the terminal that transmitted the content and the identification information of the content and the information about the type of control command (screen switching, playback, stop, etc.) .

In addition, the control unit 180 may transmit information related to control of content reproduction to each of the counterpart terminals connected to the group call (S400). Each of the counterpart terminals can transmit information related to control of content playback to the connected video display device and the video display device connected to each of the counterpart terminals can control the playback of the content based on the information related to the control of content playback can do. Accordingly, the video display devices connected to each of the terminals connected to the group call can share information related to the control of the content reproduction, so that the user can confirm the content reproduced in the same manner through the video display device. Therefore, the communication through the contents can be intuitively performed, and the usability of the contents in the group call can be increased.

Meanwhile, the control unit 180 may receive information related to control of content reproduction from a specific terminal among mobiles connected to the group call, such as mobiles connected to the group call. In this case, the control unit 180 may transmit the information related to the control of the playback of the received content to the connected video display device. Accordingly, the video display device connected to the mobile terminal 100 can control the reproduction of the content based on the information related to the control of the reproduction of the content received from the mobile terminal 100.

In addition, the controller 180 not only receives the content from the specific terminal among the counterpart terminals connected to the group call, but also transmits the content to each of the counterpart terminals connected to the group call. For example, the control unit 180 may select a terminal to transmit the content from among the peer terminals connected to the group call and the content to be transmitted. Then, the control unit 180 can transmit the selected content to the selected terminal.

4 is a conceptual diagram showing a content sharing system according to an embodiment of the present invention.

The content sharing system 10 according to an exemplary embodiment of the present invention includes a plurality of terminals 100a to 100c connected to a group call, a first network 310 for connecting group calls, A video display device 200 connected to one of a plurality of terminals 100a to 100c and a second network 200 for connecting the terminal 100a to the video display device 200, 320).

Each of the plurality of terminals 100a to 100c connected to the group call can mutually transmit and receive contents through the first network 310. [ The terminal 100a connected to the group call can transmit the content received through the first network 310 to the video display device 200 through the second network 320. [

The terminal 100a connected to the group call receives control information of content reproduction from the video display device 200 through the second network 320 and transmits the control information to another terminal 100b or 100c of the content playback apparatus. The terminal 100a connected to the group call receives the control information of content reproduction from the other terminal 100b or 100c connected to the group call through the first network 310 and displays the video image through the second network 320 It is possible to transmit control information of content reproduction to the device 200. [

The image display device 200 includes a broadcast receiving unit (not shown) for receiving an RF broadcast signal, an external device interface unit (not shown) for connecting an external device and the image display device 200, A storage unit (not shown) for storing programs related to voice or data signals and signal processing and control, a user input interface unit for transmitting a signal inputted by the user to a control unit (not shown) A controller for controlling other modules in the video display device 200 to demultiplex the input stream or to process the demultiplexed signals to generate and output a signal for video or audio output; G, and B signals of the video signal, the data signal, the OSD signal, the video signal and the data signal received from the external device interface unit, respectively, An audio output unit (not shown) for receiving a signal processed by the control unit and outputting it as a voice, and a power supply unit (not shown) for supplying power to the entire image display device 200, . ≪ / RTI >

5A is a diagram illustrating a group call information display screen of a mobile terminal according to an exemplary embodiment of the present invention.

When the mobile terminal 100 is connected to the group call, information related to the group call may be displayed on the screen 410 of the mobile terminal 100. [ The information related to the group call may include identification information of the terminals connected to the group call. For example, an area 412 displaying information related to a group call may display an image, a user name, and a phone number of a terminal user connected to the group call.

On the screen 410 of the mobile terminal 100, an object 414 configured to transmit the group call information to the video display device 200 and a content stored in the mobile terminal 100 or received by the mobile terminal 100 An object 416 that is set to select and transmit to the partner terminal connected to the group call may be displayed. When each object 414 or 416 is selected, the mobile terminal 100 invokes the function set in the selected object 414 or 416.

5B is a view showing a call information display screen of the video display device according to the embodiment of the present invention.

The object 414 of FIG. 5A is selected in the mobile terminal 100 and the video display device 200 receiving the group call information from the mobile terminal 100 displays the received group call information on the screen 510 can do. In one embodiment, the group call information may be displayed in the first area 512 of the screen of the image display device 200. In addition, the identification information 512a of the mobile terminal 100 may be further displayed in the first area 512.

Meanwhile, the first area 512 corresponds to the content or the content received from the corresponding terminal via the mobile terminal 100, adjacent to the identification information of each terminal (for example, the image of the terminal user) included in the group call information A thumbnail 512b may be displayed. When a thumbnail is displayed in the first area 512, the thumbnail may be generated in the mobile terminal 100 or the video display device 200 based on the received content. When the content is displayed in the first area 512, the content may be displayed by adjusting the screen size (e.g., resolution) of the content received from the mobile terminal 100 or the video display device 200 have. Meanwhile, in the first area 512 of FIG. 5B, only one content corresponding to each terminal or a thumbnail corresponding to the content is displayed, but a plurality of contents corresponding to each terminal or a thumbnail corresponding to the content may be displayed .

In the second area 514, the selected content 512c of the contents displayed in the first area 512 may be displayed. The content displayed in the second area 514 may be a content adjusted in size of the selected content 512c. For example, the content displayed in the second area 514 may be a content having a size larger than the screen size of the mobile terminal 100. The screen size adjustment of the content 512c may be performed in the mobile terminal 100 or in the image display device 200. [

5C is a view illustrating a content selection screen of a mobile terminal according to an embodiment of the present invention.

When the object 416 of FIG. 5A is selected in the mobile terminal 100, a screen 420 for selecting a content to be transmitted is displayed. When the content is selected, the mobile terminal 100 can transmit the selected content to each of the counterpart terminals connected to the group call. Or the content is selected, the mobile terminal 100 may select a terminal to transmit the selected content among the partner terminals connected to the group call, and transmit the selected content to the selected terminal.

6 is a diagram illustrating a transmission structure of contents according to an embodiment of the present invention.

Each of the terminals connected to the group call including the mobile terminal 100 can transmit and receive contents to each other and the terminal connected to the group call can transmit contents to the connected video display device 200. [ When transmitting a content to the video display device 200 to which the terminal connected to the group call is connected, it is necessary to identify the content from which terminal the content is received. Basically, the content transmitted through the network can be transmitted including the identification information of the transmission destination and the identification information of the destination, so that transmission and error processing can be performed.

6, when the mobile terminal 100 transmits a content (or a thumbnail of the content) to the video display device 200, the mobile terminal 100 identifies the mobile terminal 100 The identification information of the terminal that transmitted the content to the mobile terminal 100 in addition to the information of the information source and the identification information of the video display device 200 (if the content is the content of the mobile terminal 100, (Or identification information of the content) can be transmitted together with the content (or the thumbnail of the content).

7 is a diagram showing a transmission structure of control information for content reproduction according to an embodiment of the present invention.

The mobile terminal 100 receives the control information of content reproduction from the counterpart terminals or the video display device 200 connected to the group call and transmits the control information of the content reproduction to the counterpart terminals connected to the video display device 200 or the group call Can be transmitted. The video display device 200 can control the playback of the content selected from the content displayed on the video display device 200 and identifies the selected content in this case and controls the playback of the selected content, As shown in Fig.

7, the control information includes identification information (source) of the transmission destination of the control information, identification information (destination) of the destination of the control information, (Identification information of the terminal that has transmitted the content to the mobile terminal 100 (identification information of the mobile terminal 100 if the content is the content of the mobile terminal 100) Information), and a control type indicating a type of controlling reproduction of the selected content. The terminal identification information may indicate the identification information of the terminal that transmitted the selected content. The content identification information may include characters, numbers, symbols, or the like that enable the video display device 200 to identify a selected content from a plurality of contents when the video display device 200 receives a plurality of contents from the same terminal.

The control type includes a function of displaying the content selected in the first area 512 on the screen 510 of the video display device 200 in the second area 514 and a function of displaying the content displayed in the second area 514 And a function of controlling the reproduction of the image. The function of controlling the reproduction of the content displayed in the second area 514 may differ depending on the kind of the content.

For example, the function of controlling the reproduction of the content displayed in the second area 514 includes a function of performing playback, stop, and frame movement of the movie when the content is a movie, enlarging the image when the content is an image, A function to perform enlargement, reduction, and movement of text when the content is text, a function to move to a next page, a previous page, and a linked page when the content is web content, . ≪ / RTI >

In order to share the execution of various functions related to the playback of the content to the video display devices connected to the terminals connected to the group call, the control type is a function (meaning a playback function, a stop function, etc.) And a parameter (meaning a playback frame, a still frame, or the like).

In one embodiment, if the content includes identification information of another terminal that is not connected to the group call, and the identification information includes a link capable of connecting to the terminal, if the identification information is selected, The terminal can be connected to the group call through the selected identification information.

8 is a view showing a playback information table of content according to an embodiment of the present invention.

The video display device 200 can maintain the playback information table 800 of the content. The playback information table 800 of the content may include identification information of the terminal that transmitted the content, identification information of the content, and information indicating the playback state of the content. The playback state of the content may indicate whether the content is displayed in the thumbnail format in the first area 512 or in the second area 514.

The mobile terminal 100 can receive the reproduction information table 800 of the content from the video display device 200 when a new counter terminal is additionally connected to the group call. Also, the mobile terminal 100 can transmit the content playback information table 800 to the partner terminal added to the group call. The partner terminal further connected to the group call can transmit the playback information table 800 of the content to the connected video display device and can refer to the playback information table 800 of the content to be included in the playback information table 800 of the content To the terminal that has transmitted the content. The terminal receiving the transmission request can transmit the content requested to be transmitted to the partner terminal further connected to the group call. Accordingly, the content reproduction state can be synchronized between the video display devices connected to the respective terminals connected to the group call.

9 is a view showing a content playback screen of the video display device according to an embodiment of the present invention.

As described above, when the object 414 of FIG. 5A is selected in the mobile terminal 100, the first region 522 of the image display device 200 screen 520 displays the identification information of each terminal connected to the group call, A thumbnail corresponding to the content or the content received via the mobile terminal 100 from the terminal adjacent to the identification information of the terminals (for example, the image of the terminal user) may be displayed. Also, in the second region 524 on the screen 520 of the video display device 200, the content selected in the first region 522 may be displayed.

On the other hand, the second area 524 may further display an object 524a set to transmit the content displayed in the second area 524 and an object 524b set to store the content displayed in the second area 524 . When the object 524a is selected, the video display device 200 can transmit the content displayed in the second area 524 to an external device (for example, the mobile terminal 100). Also, when the object 524b is selected, the video display device 200 can store the content displayed in the second area 524 in an internal or external storage medium (for example, a storage unit).

10A is a diagram illustrating a group call information display screen of a mobile terminal according to an embodiment of the present invention.

As described above, when the object 414 of FIG. 5A is selected in the mobile terminal 100 and the mobile terminal 100 transmits the group call information to the video display device 200, An object 432 configured to store the contents of the group call together with the information related to the group call may be displayed on the screen 430. [ When the object 432 is selected, the group call is connected and information related to the group call up to the present can be stored.

10B is a diagram illustrating a storage structure of group call information according to an embodiment of the present invention.

The group call information storage structure 900 includes a time stamp indicating a generation time of a group call content (content of a call or a message) or an occurrence time of an operation related to the reproduction of the content, a call type Identification information, the contents of the call (voice in case of a call, text in case of a message, etc.) when the call type is a group call content, and content itself when the call type is a content.

Accordingly, when the mobile terminal 100 calls the contents of the call stored in the group call information in the order of the time stamp, the contents of the group call can be restored and confirmed. When the mobile terminal 100 transmits the group call information to the video display device 200 and the video display device 200 calls the content stored in the group call information in the order of time stamp, Can be restored and reproduced.

According to an embodiment of the present invention, the above-described method can be implemented as a code that can be read by a processor on a medium on which the program is recorded. Examples of the medium that can be read by the processor include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, etc., and may be implemented in the form of a carrier wave (e.g., transmission over the Internet) . The above-described mobile terminal and its operation control method are not limited to the configuration and method of the above-described embodiments, but the embodiments may be modified so that all or some of the embodiments are selectively As shown in FIG.

Here, the terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, but should be construed as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

100: mobile terminal 110: wireless communication unit
120: A / V input unit 130: user input unit
140: sensing unit 150: output unit
160: memory 170: interface section
180: control unit 190: power supply unit

Claims (5)

Transmitting identification information of each of the mobiles connected to the group call to the video display device;
Receiving content from a first terminal connected to the group call;
Transmitting the content to a video display device;
Receiving first information related to control of the content reproduction from the video display device; And
And transmitting the first information to each of the counterpart terminals connected to the group call. The method according to claim 1,
Receiving second information related to control of the content reproduction from a second terminal connected to the group call; And
Further comprising the step of transmitting the second information to the video display device. The method according to claim 1,
Selecting a content to be transmitted; And
And transmitting the selected content to each of the counterpart terminals connected to the video display device and the group call. delete The method of claim 1, wherein the step of transmitting the content to the video display device comprises:
Generating a thumbnail of the content;
Transmitting the generated thumbnail to the video display device; And
And transmitting the content to the video display device upon receiving a request to transmit the content corresponding to the generated thumbnail from the video display device.

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