KR101000894B1 - Display network and Method for receiving a contents data from a server in display network - Google Patents

Abstract

The present invention relates to a display system and a data receiving method for forming a network. The multimedia player of the multimedia player apparatus may receive content data from a server and share it with other multimedia players in the network. In addition, the multimedia player in the network may receive the content file from the server by dividing it and share it with other multimedia player in the network to completely receive one file.

According to the data receiving method of the multimedia player network and the multimedia player network of the present invention, the multimedia player can form a network, and each player in the network can receive and share content data from a server. The file of the content data may be divided and received, and the received data may be distributed or shared within the network. Therefore, each reproduction apparatus in the network can efficiently receive content data in a short time by efficiently using a local network having a high transmission speed, and can reduce data traffic with an external network. The display system as described above has an effect of increasing content reception speed while efficiently using limited network resources. And, the larger the content data is, the more efficiently and quickly the data can be received.

Network, video playback device, content reception

Description

Display system and method for receiving a contents data from a server in display network}

The present invention relates to a display system including a multimedia player, and more particularly, to a display network and a data receiving method for displaying a multimedia image on a screen.

With the development of digital technology, digital images of various formats are generated and stored, and the user can play and display the various digital images on the screen when desired through a multimedia playback device. For example, a multimedia player for playing the digital image may include a computer, an optical disc player, a set-top box, a home game machine, a digital player device, and the like.

The image data reproduced in the multimedia playback apparatus may be displayed on the screen through the display apparatus, and the user may watch the image displayed on the screen. Examples of the display device include various flat pannel display devices, CRTs, and the like.

The multimedia playback device and the display device may be integrated into one device or may be separated. In addition, the multimedia playback apparatus and the display apparatus may be directly connected, or a plurality of multimedia playback apparatuses and a plurality of display apparatuses may be connected to each other through a distributor or the like, and image data may be selectively distributed. This may be implemented according to various needs of the display method.

In the case of the multimedia player of the display system as described above, image data stored in a storage medium such as a USB, a CD, or a hard disk can be reproduced.

SUMMARY OF THE INVENTION An object of the present invention is a display system and a data receiving method of a display system for forming a network in which each reproduction apparatus can receive and store image data and share the received image data in a display system forming a network. To provide.

In a network including a multimedia player, the multimedia player network according to the present invention receives status information from a multimedia player in a network, and receives first content list information received from a server storing the status information and content. Selects the content to be received from the server and the multimedia player to receive the content, generates second content list information including the reception information to receive the content, and transmits the second content list information to the slave multimedia player in the network; Master multimedia player; And transmitting status information to the master multimedia playback device, receiving content from the server using the second content list information received from the master multimedia playback device, and receiving the content received from the server from other multimedia in the network. Slave multimedia playback device that is transmitted to the playback device to share.

In another aspect, the multimedia player network according to the present invention, in a network including a multimedia player, receives status information from a multimedia player in a network, and receives the status information from a server storing the status information and content. Select a content file to be received from the server by using the first content list information, divide the content file, allocate a content file part to be received for each multimedia player in the network, and receive the divided content file part. A master multimedia player for generating second content list information including received information and transmitting the second content list information to a slave multimedia player in the network; And transmitting status information to the master multimedia player, receiving a content file portion assigned to the user from the server using the second content list information received from the master multimedia player, and the remaining file portion being the network. And a slave multimedia player for receiving a content file from another multimedia player within the device.

A data receiving method of a network of a multimedia player apparatus according to the present invention comprises the steps of: determining a master multimedia player and a slave multimedia player among multimedia playback apparatuses in a network including a multimedia playback apparatus; Receiving status information from the multimedia player within, and selecting the content to be received from the server and the multimedia player to receive the content using the status information and the first content list information received from the server storing the content Step, the master multimedia playback device generates the second content list information including the reception information capable of receiving the content and transmitting to the multimedia playback device in the network, and the multimedia playback device is Receiving content from the server using second content list information, and transmitting the content received from the server to another multimedia player in the network for sharing.

In another aspect, a method of receiving data in a multimedia player network according to the present invention comprises the steps of: determining a master multimedia player and a slave multimedia player among multimedia playback devices in a network including a multimedia player; The device receives status information from a multimedia player in a network, selects a content file to be received from the server using the status information and first content list information received from a server storing content, and selects the content file. Dividing and allocating a content file part to be received for each multimedia player in the network, wherein the master multimedia player includes a second content lease including reception information for receiving the divided content file part; Generating and transmitting the information to the multimedia player in the network, and the multimedia player receives the content file portion assigned to the user from the server by using the second content list information received from the master multimedia player, The remaining file portion includes receiving from another multimedia player in the network.

According to the data receiving method of the multimedia player network and the multimedia player network of the present invention, the multimedia player can form a network, and each player in the network can receive and share content data from a server. The file of the content data may be divided and received, and the received data may be distributed or shared within the network.

Therefore, each reproduction apparatus in the network can efficiently receive content data in a short time by efficiently using a local network having a high transmission speed, and can reduce data traffic with an external network. The display system as described above has an effect of increasing content reception speed while efficiently using limited network resources. And, the larger the content data is, the more efficiently and quickly the data can be received.

The objects, features and advantages of the present invention will become apparent from the following detailed description of embodiments taken in conjunction with the accompanying drawings. In addition, the terms used in the present invention was selected as a general term widely used as possible now, but in certain cases, the term is arbitrarily selected by the applicant, in which case the meaning is described in detail in the corresponding description of the invention, It is to be clear that the present invention is to be understood as the meaning of terms rather than names.

The operation of the multimedia player network and the data receiving method of the multimedia player network according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.

1 is a diagram schematically illustrating a first example of receiving content data from a server in a multimedia player network according to an embodiment. 1 includes a first display system network 100, a second display system network 110, and a server 120. The first display system network 100 and the second display system network 110 each include at least one or more multimedia playback devices 102 and 112, each of which includes at least one display device ( For example, it may be connected to a flat panel display device such as LCD, PDP, OLED, and the like.

Each playback device in the first display system network 100 and the second display system network 110 may form a network through a local area network (LAN) or the like. Hereinafter, a detailed description of the LAN network will be omitted for convenience of description. Each playback device may be connected to a router or the like through a wired network cable to form a display system network, and the network may be connected to an external network such as the Internet. Alternatively, a wireless LAN may be formed wirelessly and connected to an external network such as the Internet.

The multimedia playback apparatuses 102 and 112 reproduce and output various kinds of multimedia image data. The multimedia player 102 or 112 may reproduce and output digital multimedia image data stored in an optical disk, a large memory, a hard disk, a USB, or the like, or may receive and reproduce a TV signal or a VOD signal. In addition, video data may be received from a server, reproduced, and output.

The server 120 stores content data, receives status information of the display system from the display system network, or controls the display system. The server 120 includes an FTP server unit 122, an ML translation unit 124, a database unit 126, and a web server unit 128. FTP (File Transfer Protocol) server unit 122 receives the status information (Status report) of the display system from the display system network (100, 110), or the content data (or content file) to the display system network (100, 110) Or control information (Control check) to the display system network (100, 110).

The mark-up language (ML) translation unit 124 translates the state information received from the display system networks 100 and 110, or translates control data to be transmitted to the display system networks 100 and 110 in the form of a mark-up language. do. For example, XML may be used as an example of the mark-up language.

The database unit 126 stores content data (or content file). The web server unit 128 allows a user to access the server 120 via the Internet. The user may update new content data or delete stored content data in the server 120 through the web server unit 128. In addition, the user may monitor state information received from each display system network 100 or 110.

In the example of FIG. 1, the multimedia playback devices 102 and 112 of the first display system network 100 and the second display system network 110 may be individually connected to the server 120. Each multimedia player 102 and 112 may transmit its status information to the server 120 individually, and may individually receive content data stored in the database unit 126 of the server 120. have.

2 is a diagram schematically illustrating a play list of a multimedia player. The multimedia playback apparatuses 102 and 112 of each display system network 100 and 110 may receive and store content data from the server 120 and generate a playlist as shown in FIG. 2. The playlist shown in FIG. 2 is an example created using XML. The playlist of FIG. 2 may include information such as a play file name (aa.jpg, bb.tp, bb.jpg), file type (jpg, mpg) file size, play time (30 seconds, 1 minute), and the like. . The type, file type, file name, etc. of the information included in the playlist are one example. Various still images or video formats can be played back.

The server 120 transmits the content list to the multimedia playback devices 102 and 112 of the display system network periodically or whenever there is a change in the data stored in the database unit 126. Alternatively, the server 120 transmits a content list in response to a request from the multimedia player. Each multimedia player 102 and 112 compares the playback file of the playlist as shown in FIG. 2 with the content list received from the server 120, and if there is new content in the server 120, the new content is displayed. Receive and save.

3 is a view schematically showing a status report of a multimedia contention contention. The multimedia playback devices 102 and 112 of each display system network 100 and 110 may transmit their status information to the server 120. Each multimedia playback device 102, 112 may periodically transmit its status information to the server 120, or in response to a request from the server 120, or when the status is changed. This may vary depending on implementation.

3 is an example of implementing state information in XML. The state information of FIG. 3 includes current state, disk state, output state, download state, down state, and play list information of the multimedia player. , Log information, and the like.

The current state includes the operation mode, file name, file type, file size, run time information of the multimedia player, and the like. The disk state includes a disk name, total space, free space information, and the like. Output state information includes model information (tvmodel), resolution information, and the like of a display device displaying an image, and download state information (down state) includes a download file name and a received data size. (rsize), file total size (tsize) information, and the like. Play list information refers to content information stored in a multimedia player, and includes a play file name, a play file type, a play file size, and play time information. . Each of the information included in FIG. 3 is an example, and other information may be additionally transmitted or only some of the above-described information may be transmitted according to an embodiment.

The server 120 may monitor the state of the multimedia player using the state information received from each multimedia player. For example, the server 120 may inform a user who accesses the server 120 through the web server unit 128 the status of the multimedia player included in each display system network. For example, the user may check status information for each display system network or for each multimedia playback device.

4 is a diagram schematically illustrating control information for controlling a multimedia playback contention in a server. The server 120 may transmit control checks for controlling the multimedia player 102 and 112 to the multimedia player 102 and 112 of each display system network 100 or 110. The server 120 may transmit the control information according to a command or a predetermined schedule of a user connected to the web server 128.

4 is an example of implementing control information in XML. The control information of FIG. 4 includes information for changing settings of the multimedia player (Request to change setting file), information for rebooting the multimedia player (Request reboot), and information for upgrading the firmware of the multimedia player (Request to upgrade firmware). ), And information to change the output resolution (Request to change resolution). Each control information included in FIG. 4 is an example, and other information may be additionally transmitted or only some of the above-described information may be transmitted according to an embodiment. The server 120 may control the multimedia player using the control information as described above.

FIG. 5 is a diagram schematically illustrating a second example of receiving content data from a server in a multimedia player network according to an embodiment. 5 includes a first display system network 500, a second display system network 510, and a server 520. The first display system network 500 and the second display system network 510 each include at least one or more multimedia playback devices 502 and 512, each of which includes at least one or more display devices. Can be connected. Hereinafter, for convenience of description, descriptions of matters commonly applied to the example of FIG. 1 will be omitted.

In the example of FIG. 5, each multimedia player of the display system network shares the content received from the server with other multimedia player devices in the network. In addition, one multimedia player in the display system network collects status information of the other multimedia players and transmits the information to the server 520, and the server 520 transmits control information to one multimedia player in the display system network. send.

For example, in the case of the first display system network 500, the first multimedia player 502 may include a second multimedia player,. Receives the status information from the N-1th multimedia playback device and the Nth multimedia playback device, and transmits the status information of the multimedia playback device in the first display system network 500 to the server 520. The server 520 transmits control information for controlling the multimedia player in the first display system network 500 to the first multimedia player 502, and the first multimedia player 502 controls each multimedia player. Send the information again. In addition, each multimedia player in the first multimedia player 502 may receive different content data from the server 520 and share it with other multimedia player devices in the network.

6 is a diagram schematically illustrating a first display system network according to an embodiment. It is assumed that the first display system network 500 includes N multimedia playback devices 502, 504, 506, and 508. One multimedia player 502 of the multimedia player included in the first display system network 500 operates as a master that transmits and receives status information and control information to and from the server 520. The remaining multimedia players 504, 506, and 508 operate as slaves. In addition, each multimedia player in the network may operate as an FTP server and an FTP client so as to share the received content data.

FIG. 7 is a flowchart schematically illustrating a process of determining a master among multimedia playback apparatuses included in a display system network according to an embodiment. Although a user may select and set a multimedia player serving as a master in the display system network, the example of FIG. 7 schematically illustrates an example of automatically setting a master.

When the multimedia player (or unit) is connected to the network (S700), the multimedia player connected to the network broadcasts its IP address into the network (S710). The multimedia player may broadcast a packet including its IP address information to another multimedia player in a network by using a UDP (User Datagram Protocol) socket. After broadcasting the packet containing the IP address information, the multimedia player determines whether a response is received from the master (S720). When the master receives a packet containing IP address information from another multimedia player, the master may return information indicating that it is a master and its IP address information.

As a result of the determination in step S720, when the response is received from the master, the multimedia player connected to the network recognizes itself as a slave and operates (S730). As a result of the determination in step S720, when a response is not received from the master or a response is not received within a predetermined time out, the multimedia player connected to the network recognizes itself as a master and operates it (S740).

8 is a diagram schematically illustrating a process of transmitting status information to a server in a display system network in which a master and a slave are configured.

When the master 502 and the slaves 504, 506, and 608 are determined between the multimedia players in the display system network as described above, the multimedia player designated as the slaves 504, 506, and 608 is the multimedia designated as the master 502. Send status information to the playback device. Each multimedia player can transmit information using IP address information and the like, and the example of the state information has been described with reference to FIG. 3. The master 502 may know a content list, a download state, and the like stored in each slave by using the state information received from the slaves 504, 506, and 508. Each slave 504, 506, 508 periodically sends status information to the master 502.

The master 502 may aggregate the state information received from each slave 504, 506, and 508 and its own state information to the server 520. The master 502 may aggregate the state information and transmit one report file to the server 520. Alternatively, according to an implementation example, state information of each slave 504, 506, and 508 may be simply forwarded.

FIG. 9 is a diagram schematically illustrating a process of transmitting contents list information to a display system network in which a master and a slave are set as an embodiment.

The server 520 transmits the content list to the master 502 of the first display system network 500 periodically or whenever there is a change in the data stored in the database unit (not shown). Alternatively, the server 520 transmits a content list to the master 502 at the request of the master 502 of the first display system network 500. The master 502 determines the content to download from the server 520 using the content list received from the server 520, and designates and commands the content to be received to each slave.

For example, the master 502 may know the information of the contents stored in each slave by using the state information received from each slave 504, 506, and 508 and its own state information, and from the server 520. Information of the content stored in the server 520 may be known using the received content list information. Accordingly, the master 502 may allow the server 520 to download new content when it is present. When receiving a plurality of contents from the server 520, the master 502 may distribute the content to be downloaded for each slave for each file to download different content files. For example, if there are three new content files on the server 520, the master 502 may obtain a first content file on the first slave 504 and a second content file on the N-1 slave 506. The Nth slave 508 may designate and instruct to download the third content file. When the download file is specified and there is a download command, each slave may access the server 520 and download the file.

The master 502 may re-create a Regenerated Contents list to be sent to each slave 504, 506, 508 in the network, and use this to designate and instruct each slave to download the content file. The master 502 may transmit the rewritten content list for each slave in the network. The content list rewritten at the master 502 may be sent to each slave 504, 506, 508 upon request, or periodically, from the slaves 504, 506, 508.

FIG. 10 is a diagram schematically illustrating regenerated contents list information according to an embodiment. The upper portion of FIG. 10 shows rewritten content list information transmitted by the master to the first slave, and the lower portion shows rewritten content list information transmitted by the master to the second slave. 10 shows an example of creating content list information in XML.

When the IP address of the first slave is referred to as "192.168.15.11", the master downloads three content files to the first slave. For example, download the file "aa.jpg" from a server with the address "61.252.128.120". Since the "bb.tp" file is downloaded from the server by the second slave, the master causes the first slave to download the "bb.tp" file from the second slave. The file "bb.jpg" may be downloaded from a third slave having an address of "192.168.15.13".

When the IP address of the second slave is referred to as "192.168.15.12", the master downloads three content files to the second slave. Since the "aa.jpg" file is downloaded from the server by the first slave, the master causes the second slave to download the "aa.jpg" file from the first slave. The " bb.tp " file is downloaded from a server having an address of " 61.252.128.120 ", and the " bb.jpg " file is downloaded from a third slave having an address of " 192.168.15.13 ". In FIG. 10, file type information, size information, playback time information, and the like indicate additional information about a content file.

FIG. 11 is a diagram schematically illustrating a process of sharing a content file between multimedia player devices in a display system network according to an embodiment.

As described with reference to FIGS. 9 and 10, when a master transmits a rewritten content list to each slave to designate a server or a slave to receive the content, each slave downloads and shares the content file from the determined address. For example, the content file received by the master 502 from the server 520 may be shared with the first slave 504, the N-th slave 506, and the N-th slave 508, and the first slave The content file 504 received from the server 520 may be shared with the master 502, the N-th slave 506, and the N-th slave 508. As described above, the master and the slave may operate as FTP servers and FTP clients, respectively.

 As described above, in the case of sharing the downloaded content file between the multimedia player in the network, network resources can be used more efficiently than the case of downloading the content file by connecting to the server for each multimedia player, the file download speed Can increase.

The control information transmitted from the server 520 to the display system network may transmit control information to each multimedia player in the display system network using the method of transmitting the content list of FIG. 9.

12 is a diagram schematically illustrating a third example of receiving content data from a server in a multimedia player network according to an embodiment. 12 illustrates a case of receiving content data from a server in one display system network. In the example of FIG. 12, each multimedia player in the display system network distributes and downloads one file.

Assume that a content file stored in the server 1200 is downloaded from a display system network including a multimedia player 1220 designated as a master, a multimedia player 1230 designated as a slave 1, and a multimedia player 1240 designated as a slave 2. do.

If the content file stored in the server 1200 has a size of 90 bytes, and there are three multimedia players included in the display system network (master, slave1, slave2), each multimedia player distributes data by 30 bytes. Download and share it with other multimedia players on the network.

The selection and operation of master and slave in the network are as described with reference to FIGS. 7 to 9. The master receives status information from each slave in the network and sends it to the server. The master receives the content list from the server, and when there is new content, transmits the rewritten content list to each slave and receives the content. In the case of FIG. 12, the master divides the content file and allocates a portion to be downloaded to each multimedia player in consideration of the size of the content file stored in the server and the number of multimedia player devices in the network. Each multimedia player downloads the data corresponding to the assigned portion from the server and shares it with other multimedia player in the network to complete one content file.

In FIG. 12, it is assumed that a 90-byte content file stored in the server 1200 having an IP address of “61.252.153.188” is downloaded. Since the size of the content file is 90 bytes and there are three multimedia playback devices in the network (master, slave1, slave2), the master 1220 allocates and downloads the content file by 30 bytes.

The master 1220 includes a first client thread 1221, a server thread 1223, a second client thread 1225, a third client thread 1227, a master duty thread 1229. It includes. The first client thread 1221 receives the data of the F1 portion of the 90-byte file from the server 1200, the master 1220 stores it. The server thread 1223 transmits the data of the F1 part received from the server 1220 to the slave 11230 and the slave 2 1240 according to the request. The second client thread 1225 receives the data of the F2 portion from the slave1 1230, and the third client thread 1227 receives the data of the F3 portion from the slave2 1240. The master duty thread 1229 controls operations as a master, for example, transmission and reception of state information, control information, content list information, and the like.

Slave1 1230 includes a first client thread 1231, a server thread 1233, a second client thread 1235, and a third client thread 1237. The first client thread 1231 receives data of the F2 portion of the 90-byte file from the server 1200, and the slave1 1230 stores the data. The server thread 1233 transmits the data of the F2 portion received from the server 1220 to the master 1220 and the slave2 1240 according to the request. The second client thread 1235 receives the data of the F1 portion from the master 1220, and the third client thread 1237 receives the data of the F3 portion from the slave2 1240.

Slave2 1240 includes a first client thread 1241, a server thread 1243, a second client thread 1245, and a third client thread 1247. The first client thread 1241 receives data of the F3 portion of the 90-byte file from the server 1200, and the slave2 1240 stores it. The server thread 1243 transmits the data of the portion F3 received from the server 1220 to the master 1220 and the slave1 1230 according to the request. The second client thread 1245 receives the data of the F1 portion from the master 1220, and the third client thread 1247 receives the data of the F2 portion from the slave11230.

The master 1220, the slave1 1230, and the slave2 1240 combine the data of the received F1, F2, and F3 parts to complete the reception of one content file.

When one multimedia player does not receive content data in a display system forming a network, for example, slave1 1230 among master 1220, slave1 1230, and slave2 1240 receives data. If this is not possible, the master 1220 and the slave2 1240 directly receive the data of the F2 portion, which is an allocated portion of the slave11230, directly from the server 1200.

FIG. 13 is a diagram schematically illustrating an example of a regenerated contents list according to one embodiment. When the master 1220 intends to distribute and download the content file 1210 stored in the server 1200, the master 1220 transmits the regenerated content list as shown in FIG. 13 to the slave 11230 and the slave 21240. The master 1220, the slave1 1230, and the slave2 1240 may download the content file using the regenerated content list as described above.

For example, the master 1220 receives data of down index DnIdx 0 of the file “aa.jpg” from the server 1200 having an IP address of “61.252.128.120”. The size of the file "aa.jpg" is 90 bytes, and the size of data at down index 0 is 30 bytes. In addition, the master 1220 receives data of the down index (DnIdx) number 1 of the "aa.jpg" file from slave1 1230 having an IP address of "192.168.15.11", and an IP address of "192.168.15.12". Receives data of the "aa.jpg" file-down-down index (DnIdx) 2 from the slave2 1240 having a.

The slave1 1230 receives data of the down index 1 from the file "aa.jpg" from the server 1200 having an IP address of "61.252.128.120", and has a master 1220 having an IP address of "192.168.15.10". ) Receives data of the down index 0 in the file "aa.jpg", and receives data of the down index 2 in the file "aa.jpg" from the slave2 1240 having an IP address of "192.168.15.12". The slave 2 1240 receives data of the down index 2 from the file "aa.jpg" from the server 1200 having the IP address of "61.252.128.120" and the master 1220 having the IP address of "192.168.15.10". ) Receives data of down index 0 in the file "aa.jpg", and receives data of down index 1 in file "aa.jpg" from slave1 1230 having an IP address of "192.168.15.11".

In order to distribute, download, and share content files as described above, the master and the slave may operate as FTP servers and FTP clients, respectively.

14 is a flowchart schematically illustrating an operation of a master in a third example of receiving content data from a server according to an embodiment. As described above, the master can operate as an FTP client and an FTP server. Also, the operation of FTP client and FTP server can occur in parallel. Hereinafter, for convenience of description, the FTP client part and the FTP server part will be described separately.

The FTP client portion of the master receives the content list from the server (S1400). Upon receiving the content list, the master determines whether there is new content in the server (S1402). If there is no new content, the master returns to step S1400 and waits.

As a result of the determination of step S1402, if there is new content, the master divides the file of the content by the number of multimedia playback devices in the network and allocates a portion to download data from the server to each multimedia playback device. The master regenerates the content list according to the allocation result and transmits the content list to each multimedia playback apparatus in the network (S1404).

The master connects to the server and receives the data portion that is assigned to be received from the server, and receives the remaining data portion from another multimedia player in the network (S1406). The master combines the data portion received from the server with the data portion received from the other multimedia player, creates one content file, and completes the reception of the content file (S1408).

The FTP server portion of the master determines whether another multimedia player is connected to the multimedia system network (S1410). If there is another multimedia player in the network, the master determines whether to transmit the regenerated content list or the part of the content data received and stored from the server (S1412).

As a result of the determination in step S1412, when transmitting the regenerated content list, the master transmits the regenerated content list to each multimedia playback apparatus in the network (S1414). For example, the regenerated content list may be transmitted to another multimedia player periodically or when it is determined that there is new content in the server. This may vary depending on implementation.

As a result of the determination in step S1412, when transmitting the content data, the master transmits the content data portion allocated to itself to the other multimedia player (S1416). The master may transmit the content data portion upon request from another multimedia playback device.

15 is a flowchart schematically illustrating an operation of a slave in a third example of receiving content data from a server according to an embodiment. As described above, the slave can also act as an FTP client and an FTP server. Also, the operation of FTP client and FTP server can occur in parallel.

The FTP client portion of the slave receives the content list reproduced from the master from the master (S1500). Upon receiving the content list, the slave determines whether there is new content to download from the server (S1502). If there is no new content, the slave returns to step S1500 and waits.

As a result of the determination in step S1502, if there is new content, the slave connects to the server and receives the data portion that it has allocated to receive from the server according to the allocation result from the master, and receives the remaining data portion from other multimedia playback apparatuses in the network. (S1504). The slave combines the data portion received from the server with the data portion received from the other multimedia player, creates one content file, and completes the reception of the content file (S1506).

The FTP server portion of the slave determines whether another multimedia player is connected to the multimedia system network (S1508). If there is another multimedia player in the network, the slave transmits the content data portion allocated to itself and received from the server to another multimedia player (S1510). The slave may transmit the content data portion upon request from another multimedia playback device.

The present invention is not limited to the above-described embodiments, and as can be seen in the appended claims, modifications can be made by those skilled in the art to which the invention pertains, and such modifications are within the scope of the present invention.

1 is a diagram schematically illustrating a first example of receiving content data from a server in a multimedia player network as an embodiment;

2 is a diagram schematically showing a play list of a multimedia player;

3 is a view schematically showing a status report of a multimedia contention content (Status report);

4 is a diagram schematically illustrating control information for controlling a multimedia playback contention in a server;

5 is a diagram schematically illustrating a second example of receiving content data from a server in a multimedia player network as an embodiment;

6 is a schematic illustration of a first display system network, in one embodiment;

FIG. 7 is a flowchart schematically illustrating a process of determining a master among multimedia playback apparatuses included in a display system network according to an embodiment; FIG.

8 is a diagram schematically illustrating a process of transmitting status information to a server in a display system network in which a master and a slave are configured as an embodiment;

FIG. 9 is a diagram schematically illustrating a process of transmitting contents list information to a display system network in which a master and a slave are configured as an embodiment; FIG.

FIG. 10 is a diagram schematically illustrating regenerated contents list information according to one embodiment; FIG.

FIG. 11 is a diagram schematically illustrating a process of sharing a content file between multimedia player devices in a display system network according to one embodiment; FIG.

12 is a diagram schematically illustrating a third example of receiving content data from a server in a multimedia player network as an embodiment;

FIG. 13 is a diagram schematically illustrating an example of a Regenerated Contents List as an embodiment; FIG.

14 is a flowchart schematically illustrating an operation of a master in a third example of receiving content data from a server as an embodiment;

15 is a flowchart schematically illustrating an operation of a slave in a third example of receiving content data from a server as an embodiment.

* Explanation of symbols for the main parts of the drawings

100: first display system network 110: second display system network

102: first multimedia playback device 112: second multimedia playback device

120: server

Claims (17)

In a network comprising a multimedia player, From the multimedia player in the network, the current state, the disk state, the output state, the download state, the down state, the play list, Or receiving state information corresponding to at least one of log information, and receiving the content and the content to be received from the server using the first content list information received from the server storing the state information and the content. A master multimedia playback device for selecting a multimedia playback device to generate second content list information including reception information for receiving content and transmitting the second content list information to a slave multimedia playback device in a network; And Transmitting the status information to the master multimedia player, receiving content from the server using the second content list information received from the master multimedia player, and receiving the content received from the server from other multimedia in the network. Multimedia playback device network comprising a slave multimedia playback device to transfer to the playback device to share. delete The method of claim 1, The master multimedia player, if there is a plurality of content to be received from the server, and specifies that the content is received by different multimedia player, respectively, And the multimedia player receiving the content transmits the content received from the server to another multimedia player in the network for sharing. The method of claim 1, The second content list information, Multimedia playback device network including first content information, IP address information of a server that can receive the first content, second content information, and IP address information of another multimedia playback device that receives the second content from the server. . The method of claim 1, The master multimedia playback device, And receiving multimedia control device control information from the server and transmitting the multimedia player control information to the slave multimedia player in the network. The method of claim 5, The control information, Information to change the settings of the multimedia player (Request to change setting file), Information to reboot the multimedia player (Request reboot), Information to upgrade the firmware of the multimedia player (Request to upgrade firmware), Change the output resolution Multimedia player network including at least one of request to change resolution In a network comprising a multimedia player, From the multimedia player in the network, the current state, the disk state, the output state, the download state, the down state, the play list, Or receiving status information corresponding to at least one of log information, and selecting a content file to be received from the server using the first content list information received from the server storing the status information and the content, Splitting the content file, allocating a content file portion to be received for each multimedia playback device in the network, and generating second content list information including reception information for receiving the divided content file portion, the slave multimedia in the network. Master multimedia playback device for transmitting to the playback device; And Transmits the status information to the master multimedia player, receives the content file portion assigned to the user from the server using the second content list information received from the master multimedia player, and the remaining file portion is the network. And a slave multimedia player for receiving content files from other multimedia player devices in the network. The method of claim 7, wherein The master multimedia playback device, And dividing the content file to be received from the server by the number of multimedia player devices in the network, and allocating the divided content file part for each multimedia player device to receive from the server. The method of claim 7, wherein The second content list information, Index information corresponding to a first content file part among the divided content files, IP address information of a server capable of receiving a first content file part corresponding to the index information, index information corresponding to a second content file part, and And the IP address information of another multimedia player capable of receiving a second content file portion corresponding to the index information. The method of claim 7, wherein The master multimedia playback device, And receiving multimedia control device control information from the server and transmitting the multimedia player control information to the slave multimedia player in the network. In a network comprising a multimedia player, Determining a master multimedia player and a slave multimedia player among multimedia playback devices in a network; The master multimedia player is the current state, disk state, output state, download state, down state, playlist information of the multimedia player from the multimedia player in the network. contents to be received from the server by receiving status information corresponding to at least one of a play list or log information and using first content list information received from a server storing the status information and the contents. Selecting a multimedia player to receive the content; Generating, by the master multimedia player, second content list information including reception information capable of receiving the content, and transmitting the second content list information to the multimedia player in the network; And The multimedia player comprises receiving the content from the server using the second content list information, and transmitting and sharing the content received from the server to another multimedia player in the network. Receive method. The method of claim 11, Determining the master multimedia playback device and the slave multimedia playback device, The multimedia player in the network broadcasting information including its IP address to the network; When the response is received from the master multimedia player, recognizing and operating itself as a slave; And And if the response is not received from the master multimedia player, the multimedia player recognizing and operating itself as a master. The method of claim 11, Selecting the content to be received from the server and the multimedia player to receive the content, If there is a plurality of content to be received from the server, the data receiving method of the multimedia playback device network to select the content to be received by different multimedia playback device, respectively. The method of claim 11, And receiving, by the master multimedia player, multimedia control device control information from the server and transmitting the received multimedia player control information to a multimedia player in a network. In a network comprising a multimedia player, Determining a master multimedia player and a slave multimedia player among multimedia playback devices in a network; The master multimedia player is the current state, disk state, output state, download state, down state, playlist information of the multimedia player from the multimedia player in the network. contents to be received from the server by receiving status information corresponding to at least one of a play list or log information and using first content list information received from a server storing the status information and the contents. Selecting a file, dividing the content file, and allocating a content file portion to be received for each multimedia player in the network; Generating, by the master multimedia player, second content list information including reception information capable of receiving the divided content file portion and transmitting the generated second content list information to the multimedia player in the network; And The multimedia player receives the portion of the content file allocated to itself from the server using the second content list information received from the master multimedia player, and receives the remaining file portion from another multimedia player in the network. Data receiving method of a multimedia playback device network comprising a. The method of claim 15, Selecting a content file to receive from the server, and dividing the content file to allocate a portion of the content file to receive, And dividing the content file to be received from the server by the number of multimedia playback devices in the network, and allocating the divided content file portion to each multimedia playback device to receive from the server. The method of claim 15, And receiving, by the master multimedia player, multimedia control device control information from the server and transmitting the received multimedia player control information to a multimedia player in a network.

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