KR20120075542A

KR20120075542A - Electronic device and contents sharing method for electronic device

Info

Publication number: KR20120075542A
Application number: KR1020100116665A
Authority: KR
Inventors: 박순철
Original assignee: 엘지전자 주식회사
Priority date: 2010-11-23
Filing date: 2010-11-23
Publication date: 2012-07-09

Abstract

PURPOSE: A content sharing method of electronic apparatuses and electronic apparatus are provided to use a second external electronic apparatus as a server by requesting for changing a server to a first external electronic apparatus. CONSTITUTION: A first external apparatus is connected through a local network(S101). Content stored in a memory unit is transmitted to the first external electronic apparatus in order to reproduce the content in the first external electronic apparatus(S102). The change of a server is requested during the transmission of the content(S103). A control unit selects a second external electronic apparatus as a server from the external electronic apparatuses which contact to the local network(S104). The content is transmitted from the second external electronic apparatus to the first external electronic apparatus(S105).

Description

Electronic device and contents sharing method for electronic device

The present invention relates to an electronic device and a content sharing method of the electronic device.

Recently, a technology for supporting a service to enjoy the same content on multiple electronic devices by connecting electronic devices such as a television, a personal computer, a mobile phone, and the like has become an issue. In addition, in order to support such a content sharing service, it is contemplated to improve the structural part and / or software part of the electronic device.

An object of the present invention is to provide an electronic device and a content sharing method of the electronic device for seamlessly providing content to a user.

An electronic device according to an aspect of the present invention includes a wireless communication unit; And when a change of the server providing the content is requested while operating as a server for transmitting content to the first external electronic device connected through the wireless communication unit, the second external electronic device connected through the wireless communication unit. It includes a control unit for controlling to operate as a server providing a.

In addition, the content sharing method of the electronic device according to an aspect of the present invention, transmitting the content to the first external electronic device connected to the local network; And when a change of a server providing the content to the first external electronic device is requested while transmitting the content, remaining data other than data transmitted from the electronic device to the first external electronic device among all data included in the content. And transmitting a start time point of the data or the remaining data to a second external electronic device connected to the local network.

The electronic device and the content sharing method of the electronic device according to the present invention have an effect of providing content to a user without interruption.

1 is a block diagram of an electronic device according to an embodiment of the present invention.
2 is a structural diagram illustrating a service network according to an embodiment of the present invention.
3 is a DLNA-based network structure diagram.
4 is a flowchart illustrating a content sharing method of an electronic device according to an embodiment of the present disclosure.
5 is a flowchart illustrating an example of a method in which the electronic device 100 selects a second external electronic device to operate as a server according to an embodiment of the present disclosure.
FIG. 6 is a flowchart illustrating an example of a method of controlling the electronic device 100 to continuously transmit the content from a second external electronic device according to an embodiment of the present disclosure.
7 and 8 illustrate examples of continuously transmitting content transmitted from the electronic device 100 according to an embodiment of the present disclosure from the external electronic device 100.

The above objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. However, the present invention may be modified in various ways and may have various embodiments. Hereinafter, specific embodiments will be illustrated in the drawings and described in detail. Like reference numerals designate like elements throughout the specification. In addition, when it is determined that the detailed description of the known function or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, numbers (eg, days, days, etc.) used in the description of the present specification are merely identification symbols for distinguishing one component from another component.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . 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.

In addition, the suffixes "module" and "unit" for the components used in the following description are given or mixed in consideration of ease of specification, and do not have distinct meanings or roles from each other.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an electronic device according to embodiments of the present disclosure.

The electronic device 100 includes a communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, and an interface unit. 170, the controller 180, and the power supply 190 may be included. The components shown in FIG. 2 are not essential, and an electronic device having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The communication unit 110 may include one or more modules that enable communication between the electronic device 100 and the communication system or between the electronic device 100 and a network in which the electronic device 100 is located. For example, the 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, a location information module 115, and the like.

The broadcast receiving module 111 receives a broadcast signal 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 mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal 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, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video BroadcastHandheld (DVBH).

The broadcast receiving module 111 receives broadcast signals using various broadcasting systems. In particular, the broadcast receiving module 111 may be a digital multimedia broadcasting broadcasting (DMBT), a digital multimedia broadcasting satellite (DMBS), a media forward link only (MediaFLO), a digital video broadcasting ), And ISDBT (Integrated Services Digital Broadcast Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems that provide broadcast signals 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 refers to a module for wireless internet access, and the wireless internet module 113 may be internal or external to the electronic device 100. WLAN (WiFi), 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 the short distance communication technology.

The location information module 115 is a module for checking or obtaining the location of the electronic device. A typical example of the location information module is a GPS (Global Position System) module. According to the current technology, the GPS module 115 calculates information on a distance (distance) from three or more satellites to one point (entity), information on the time when the distance information is measured, , Three-dimensional position information according to latitude, longitude, and altitude of one point (individual) in one hour can be calculated. Furthermore, a method of calculating position and time information using three satellites and correcting the error of the calculated position and time information using another satellite is also used. The GPS module 115 continues to calculate the current position in real time and uses it to calculate speed information.

Referring to FIG. 1, the A / V 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 call mode or the photographing mode. The processed image frame can be displayed on the display module 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the communication unit 110. The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

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. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

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

The sensing unit 140 detects a current state of the electronic device 100, such as an open / closed state of the electronic device 100, a location of the electronic device 100, presence or absence of a user contact, orientation of the electronic device, acceleration / deceleration of the electronic device, and the like. To generate a sensing signal for controlling the operation of the electronic device 100. For example, when the electronic device 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, it may be responsible for sensing functions related to whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor.

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

The display module 151 displays information processed by the electronic device 100. For example, when the electronic device 100 is in a call mode, the electronic device 100 displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the electronic device 100 is in a video call mode or a photographing mode, the electronic device 100 displays a photographed and / or received image, a UI, or a GUI.

The display module 151 is a liquid crystal display, a thin film transistor liquid crystal display, an organic light emitting diode, a flexible display, or a 3D display. It may include at least one.

Some of these displays can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is a transparent LCD. The rear structure of the display module 151 may also be of a light transmission type. With this structure, the user can see the object located behind the terminal body through the area occupied by the display module 151 of the terminal body.

Two or more display modules 151 may exist according to the implementation form of the electronic device 100. For example, a plurality of display modules may be spaced apart or integrally disposed on one surface of the electronic device 100, or may be disposed on different surfaces.

In a case where the display module 151 and the sensor for sensing the touch operation (hereinafter, referred to as 'touch sensor') have a mutual layer structure (hereinafter referred to as 'touch screen' 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 pressure applied to a specific portion of the display module 151 or capacitance generated at a specific portion of the display module 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 module 151 is touched or the like.

Referring to FIG. 1, a proximity sensor may be disposed in an inner region of an electronic device surrounded by the touch screen or near 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 allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." 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 sound output module 152 may output audio data received from the communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 outputs a sound signal related to a function (for example, a call signal reception sound or a message reception sound) performed in the electronic device 100. The sound output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the electronic device 100. Examples of events occurring in the electronic device include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than a video signal or an audio signal, for example, vibration. The video signal or audio signal may also be output through the display module 151 or the audio output module 152.

The haptic module 154 generates various tactile effects that the user can feel. Vibration is a representative example of the haptic effect generated by the haptic module 154. The intensity and pattern of vibration generated by the haptic 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 be used for the effects of stimulation by the arrangement of pins vertically moving with respect to the contact skin surface, the effect of the injection force of the air through the injection or inlet or the stimulation through the suction force, and the stimulation that rubs the skin surface. Various tactile effects may be generated, such as effects by stimulation through contact of electrodes, effects by stimulation using electrostatic force, and effects of reproducing a sense of warmth and heat using an endothermic or heat generating element.

The haptic module 154 may not only deliver the haptic effect through direct contact, but also implement the haptic effect through the muscle sense of the user's 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 may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.). The memory 160 may store data relating to various patterns of vibration and sound output when a touch input on the touch screen is performed.

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 At least one of a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read- Type storage medium. The electronic device 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 with all external devices connected to the electronic device 100. The interface unit 170 receives data from an external device or receives power and transmits the data to each component in the electronic device 100, or transmits the data inside the electronic device 100 to an 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 that stores various information for authenticating the use authority of the electronic device 100, and includes a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module. (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.

The interface unit may be a passage through which power from the cradle is supplied to the electronic device 100 when the electronic device 100 is connected to an external cradle, or various command signals input from the cradle by a user may be used. It can be a passage to the device. Various command signals or power input from the cradle may be operated as signals for recognizing that the electronic device is correctly mounted in the cradle.

The controller 180 typically controls the overall operation of the electronic device. For example, perform related control and processing for voice calls, data communications, video calls, and the like. The controller 180 may include a multimedia module 181 for playing multimedia. 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 a writing input or a drawing input performed on the touch screen as text and an image, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

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 processors, controllers, microcontrollers, microprocessors, and electrical units for performing functions. In some cases such embodiments may be implemented using a controller 180 < / RTI >

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. In addition, the software codes may be stored in the memory 160 and executed by the control unit 180. [

An embodiment disclosed in this document may be implemented in the electronic device 100 described with reference to FIG. 1.

2 is a structural diagram illustrating a service network according to an embodiment of the present invention, which is a structural diagram illustrating a service network for sharing contents between electronic devices.

Referring to FIG. 2, the electronic device 100 is connected to at least one external electronic device 200 having an image display function through a network, and the external electronic device 200 may display content on the external electronic device 200. Content is shared with the external electronic device 200 by delivering the content to the electronic device 200 or by receiving the content from the external electronic device 200 and displaying the content on the screen.

In FIG. 2, a case where the electronic device 100 is a mobile phone and the external electronic device 200 is a television and a laptop computer is described as an example, but the present invention is not limited thereto. According to the present invention, the electronic device 100 and the external electronic device 200 include a mobile phone, a television, a notebook computer, a smart phone, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), Navigation, a desktop computer, a set-top box, a personal video recorder (PVR), an electronic picture frame, or the like, may be implemented.

Referring back to FIG. 2, in order for the electronic device 100 to share content with the external electronic device 200, the electronic device 100 and the electronic device 100 and the external electronic device 200 may be compatible with each other. It is necessary to configure a platform of the external electronic device 200. To this end, the electronic devices 100 and 200 related to the embodiment of the present invention may configure a platform based on a digital living network alliance (DLNA).

According to DLNA, IPv4 can be used as the network stack, and Ethernet, Wireless Local Network (WLAN) (802.11a / b / g), Wireless Fidelity (Wi-Fi), Bluetooth (Bluetooth), In addition, a communication method capable of IP connection can be used.

In addition, according to the DLNA, the discovery and control of the electronic device may be based on UPnP, in particular, UPnP AV Architecture and UPnP Device Architecture. For example, a simple service discovery protocol (SSDP) may be used for discovery of an electronic device. In addition, a simple object access protocol (SOAP) may be used for controlling the electronic device.

In addition, according to DLNA, HTTP, RTP, and the like can be used for media transmission, and JPEG, LPCM, MPEG2, MP3, MPEG4, and the like can be used as a media format.

In addition, according to DLNA, digital media server (DMS), digital media player (DMP), digital media renderer (DMR) and digital media controller (DMC) types Can support electronic devices.

3 is a DLNA-based network structure diagram.

Referring to FIG. 3, the DMS 3a refers to an electronic device that performs a function of storing and managing content. That is, the content may be managed based on a control command received from the DMC 3b or the DMP 3d, or the content to be played back may be transmitted to the DMR 3c. For example, PC, PVR, STB, etc. may be included in the DMS 3a.

The DMC 3b refers to an electronic device that performs a content control function. For example, a mobile phone, a PDA, or the like can be included in the DMC 3b.

The DMR 3c refers to an electronic device that performs only a content reproduction function. That is, the content can be reproduced based on the content reproduction command received from the DMC 3b or the DMP 3d or the content received from the DMS 3a. For example, an electronic picture frame may be included in the DMR 2c.

The DMP 3d refers to an electronic device that performs a function of controlling and playing back content. In other words, the DMP 3d performs the functions of the DMR 3c and the DMC 3b. For example, a TV, a home theater, or the like may be included in the DMP 3d.

In the embodiment of the present invention, the case where the platform of the electronic device is constructed based on DLNA has been described as an example, but the present invention is not limited thereto. In the present invention, it is also possible to apply other standard technologies to build a platform that is compatible with electronic devices.

Hereinafter, a method of sharing content of an electronic device and an operation of the electronic device for implementing the same according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

4 is a flowchart illustrating a content sharing method of the electronic device 100 according to an embodiment of the present disclosure.

Referring to FIG. 4, the controller 180 connects to a first external electronic device through a local network connected through the wireless communication unit 110 (S101). In addition, the server 160 transmits the content to the first external electronic device so that the content stored in the memory 160 is played on the first external electronic device (S102).

The controller 180 may receive a server change request while transmitting the content to the first external electronic device, that is, while operating the server to transmit the content. For example, when the user needs to leave the local network due to going out, the user may request a server change through the user input unit 130. Also, for example, when it is impossible to continuously perform the server role because the battery charge amount of the electronic device 100 is less than or equal to a preset value, the controller 180 may receive a server change request.

If a server change is requested while transmitting content (S103), the controller 180 selects a second external electronic device as a server from the external electronic devices connected to the local network (S104). In operation S105, the content that is being transmitted is transmitted from the second external electronic device to the first external electronic device.

FIG. 5 is a flowchart illustrating an example of a method of selecting, by the electronic device 100, a second external electronic device to operate as a server in step S104.

Referring to FIG. 5, the controller 180 searches for an external electronic device in which the same content as the content being transmitted to the first external electronic device is stored (S201). The controller 180 transmits identification information for identifying the content, such as a hash value of the content, to other external electronic devices included in the local network. Receiving the external electronic device checks whether the same content is stored therein using the received identification information, and transmits the confirmation result to the electronic device (100). That is, the electronic device 100 transmits a response indicating whether the same content as the content exists or not. The controller 180 may determine whether there is an external electronic device identical to the content based on the response received from the external electronic devices.

Referring back to FIG. 5, if there is an external electronic device storing the same content as the content (S202), the controller 180 selects a second external electronic device to operate as a server among the external electronic devices storing the same content. (S203). When a plurality of external electronic devices having the same content are stored, the controller 180 may select one external electronic device based on at least one preset criterion. For example, the controller 180 may collect hardware specifications of each external electronic device from each external electronic device, and select an external electronic device that satisfies a predetermined condition as a server. In addition, when a plurality of external electronic devices having the same content are stored, the controller 180 may display a list of the searched external electronic devices through the display module 151 and select the external electronic device selected from the list as a server. .

On the other hand, if the external electronic device in which the same content as the content is stored is not searched for (S202), the controller 180 may operate as a server among the external electronic devices operable as a server among the external electronic devices included in the local network. The second external electronic device is selected (S204). The controller 180 transmits a message for searching for external electronic devices operable as a server to the external electronic devices connected to the local network. In response to the response from the external electronic devices operable as the server, a second external electronic device to be operated as the server is selected based on the received response. For example, the controller 180 transmits a ping message to external electronic devices connected to the local network, and the external electronic devices operable as a server among the received external electronic devices are the electronic device 100. Send a response. Accordingly, the controller 180 selects one of the external electronic devices that transmits the response as the server. For example, the controller 180 may select, as a server, the external electronic device having the fastest response speed among the external electronic devices that transmit the response. For example, the controller 180 may display a list of external electronic devices that transmit the response through the display module 151 and select the external electronic device selected from the list as the server.

As described above, when a second external electronic device to transmit content is selected instead of the electronic device 100, the controller 180 controls the second external electronic device to continuously transmit the content instead of the electronic device 100. FIG. 6 is a flowchart illustrating an example of a method of controlling the electronic device 100 to subsequently transmit the content from a second external electronic device in step S105 described above.

Referring to FIG. 6, the controller 180 requests transmission of the content to a second external electronic device newly selected as a server (S301). When the second external electronic device accepts the transmission of the content (S302), the controller 180 excludes data already transmitted by the electronic device 100 to the first external electronic device from among all data included in the content. The start time point of the remaining data is transmitted to the second external electronic device (S303). That is, information indicating how far of the entire data included in the content is transmitted to the first external electronic device is transmitted to the second external electronic device. The second external electronic device that receives the data subsequently transmits the remaining data except for the data already transmitted to the first external electronic device to the first external electronic device. If the external electronic device storing the same content as the content is selected as the second external electronic device, the controller 180 determines that the second external electronic device accepts the transmission of the content in step S303, and then transmits the data to the first external electronic device. The transmission is stopped, and the data transmission time point is transmitted to the second external electronic device. On the other hand, when the external electronic device in which the same content is not stored as the second external electronic device is selected as the second external electronic device, the controller 180 continuously displays the content even if the second external electronic device accepts the transmission of the content. Transfer to an external electronic device. Also, the second external electronic device transmits the remaining data except for the data transmitted to the first external electronic device to the second external electronic device until the second external electronic device accepts the content transmission. When all remaining data is transmitted to the second external electronic device, data transmitted so far by the electronic device 100 to the first external electronic device among the total data included in the content is calculated, and the first of the entire data is calculated. A start time of the remaining data not yet transmitted to the external electronic device, that is, a data transmission time for subsequently transmitting content from the second external electronic device is calculated and transmitted to the second external electronic device.

7 and 8 illustrate examples in which content transmitted from the electronic device 100 is subsequently transmitted from the external electronic device 100.

Referring to FIG. 7, the electronic device 100 receives a server change request while transmitting content to the external electronic device A 200-1 (S401). Accordingly, the external electronic devices 200-2 connected to the hash value of the content being transmitted to the first external electronic device 200-1 to the same local network as the external electronic device A 200-1. , 200-3, 200-4) (S402, S403, S404). The external electronic devices 200-2, 200-3, 2004 search for the same content stored in the internal memory by using the received hash value, and send a response indicating whether the same content exists according to the search result. 100) (S405, S406, S407). The electronic device 100 recognizes that the same content exists in the external electronic device B 200-2 based on the received responses, and transmits a resending request of the content to the external electronic device B 200-2 (S408). If the external electronic device B 200-2 accepts it (S409), the data transmission time point is transmitted to the external electronic device B 200-2 (S410). Upon receiving this, the external electronic device B 200-2 subsequently transmits the content to the external electronic device A 200-1 based on the received data transmission time point (S411). The data transmission time point is at the start time of the information about the data transmitted from the electronic device 100 to the external electronic device A 200-1 or the remaining data which has not yet been transmitted until the data transmission time point of the entire data of the content is transmitted. It includes information about the information, and tells the external electronic device B (200-2) which data from the data contained in the content to transmit from.

Referring to FIG. 8, when the electronic device 100 requests a server change while transmitting content to the external electronic device A 200-1 (S501), the electronic device 100 transmits the content to the first external electronic device 200-1. The hash value is transmitted to the external electronic devices 200-2, 200-3, and 200-4 connected to the same local network as the external electronic device A 200-1 (S502, S503, and S504). The external electronic devices 200-2, 200-3, 2004 search for the same content stored in the internal memory by using the received hash value, and send a response indicating whether the same content exists according to the search result. 100) (S505, S506, S507). The electronic device 100 determines that there is no external electronic device storing the same content based on the received responses, and transmits a ping message to the external electronic devices 200-2, 200-3, 2004 (S508). , S509, S510). When a response to the ping message is received from the external electronic devices 200-2, 200-3, and 200-4 (S511, S512, S513), the content is transmitted to the external electronic device B 200-2 having the fastest response speed. Requests to send back (S514). In addition, when the external electronic device B 200-2 accepts it (S515), the next data of the data transmitted to the external electronic device A 200-1 to the present is transmitted to the external electronic device B 200-2. (S516). Even while data is transmitted to the external electronic device B 200-2, content transmission to the external electronic device A 200-1 is continuously performed. When all remaining data is transmitted to the external electronic device B 200-2, the electronic device 100 transmits a data transmission time point to the external electronic device B 200-2 (S517). Upon receiving this, the external electronic device B 200-2 subsequently transmits the content to the external electronic device A 200-1 based on the received data transmission time (S518).

According to an exemplary embodiment of the present disclosure, when the user stores the content stored in the electronic device 100 on another external electronic device, the user goes out or the battery charge of the electronic device 100 is insufficient. When leaving, it automatically selects another external electronic device that can operate as a server. The content is seamlessly provided to an external electronic device that plays the content using the selected external electronic device. Accordingly, the user can enjoy the content seamlessly even when the electronic device 100 operating as a server leaves the local network or a sudden situation in which the battery charge amount of the electronic device 100 is insufficient occurs.

The content sharing method of an electronic device according to the present invention described above may be provided by recording on a computer-readable recording medium as a program for executing on a computer.

The content sharing method of the electronic device according to the present invention may be executed through software. When implemented in software, the constituent means of the present invention are code segments that perform the necessary work. The program or code segments may be stored in a processor readable medium or transmitted by a computer data signal coupled with a carrier in a transmission medium or communication network.

The computer-readable recording medium includes a mode type recording device in which data that can be read by a computer system is stored. Examples of computer-readable recording devices include ROM, RAM, CD-ROM, DVD-ROM, DVD-RAM, magnetic tape, floppy disk, hard disk, optical data storage device, and the like. The computer readable recording medium can also be distributed over network coupled computer devices so that the computer readable code is stored and executed in a distributed fashion.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings, and all or some of the embodiments may be selectively combined so that various modifications may be made.

Claims

A wireless communication unit; And
If a change of the server providing the content is requested while operating as a server for transmitting content to the first external electronic device connected through the wireless communication unit, the second external electronic device connected through the wireless communication unit may request the content. Control unit to operate as providing server
.

The method of claim 1,
The controller receives a change request of a server that transmits the content when the electronic device leaves the local network including the first external electronic device or when the battery charge of the electronic device is less than or equal to a preset value. An electronic device, characterized in that.

The method of claim 1,
The controller selects the second external electronic device that stores the same content as the content from among at least one external electronic device connected through the wireless communication unit as a server for transmitting the content.

The method of claim 3,
The controller selects the second external electronic device that stores the same content as the content from among the at least one external electronic device by using a hash value of the content.

The method of claim 1,
If there is no external electronic device storing the same content as the content among the at least one external electronic device connected through the wireless communication unit, the control unit selects the second external electronic device selected from the at least one external electronic device. Electronic device for transmitting the content.

The method of claim 5,
And the second external electronic device is an external electronic device having a fastest message response speed to the electronic device among the at least one external electronic device.

The method of claim 5,
And the control unit transmits remaining data except for data transmitted from the electronic device to the first external electronic device among all data included in the content to the second external electronic device.

The method of claim 1,
The controller may further include data transmitted from the electronic device to the first external electronic device among all data included in the content by the second external electronic device when the server for transmitting the content is changed to a second external electronic device. And transmitting the start time point of the remaining data to the second external electronic device so that the remaining data except for the data is transmitted to the first external electronic device.

Transmitting content to a first external electronic device connected to a local network; And
If a change of a server providing the content to the first external electronic device is requested while the content is being transmitted, remaining data except for data transmitted from the electronic device to the first external electronic device among all data included in the content. Or transmitting the start time point of the remaining data to a second external electronic device connected to the local network.
Control method of an electronic device comprising a.