KR100823270B1 - Method and apparatus for storing contents - Google Patents

Abstract

The present invention relates to a method and an apparatus for storing content. A method of storing a content provided by a server in a second client by a first client according to the present invention includes an XML document including metadata of contents provided by the server. Receiving; Extracting address information of at least one downloadable content among the contents with reference to the document; And transmitting the extracted address information to the second client. According to the present invention, content may be directly stored in a client that does not support RSS, or distributed in a plurality of clients.

RSS, Content, Distributed Storage

Description

Method and apparatus for storing content

1 is a flowchart illustrating a method of distributing general content using RSS (Really Simple Syndication).

2 is a flowchart of a method for storing content according to a first preferred embodiment of the present invention.

3 is a flowchart of a method for storing content according to a second preferred embodiment of the present invention.

4 is a flowchart of a method for storing content according to a third preferred embodiment of the present invention.

5 is a flowchart of a method for storing content by an RSS client according to the present invention.

6 shows a flowchart of a method for storing content by a client on a network in accordance with the present invention.

7 illustrates an RSS client in accordance with a preferred embodiment of the present invention.

8 illustrates a client on a network in accordance with a preferred embodiment of the present invention.

The present invention relates to a method and apparatus for distributing and storing content provided from a server on a network, and more particularly, to a method and apparatus for storing a content by a predetermined client in a network where a server and a plurality of clients are connected. .

RSS (Really Simple Syndication) is a Syndication protocol for simple content based on XML. For example, when a user writes on his blog, an updated list is automatically generated and written into an XML document, called an RSS feed. The XML document generated by RSS protocol contains the information of the blog, so users who want to read the blog's posts can read the generated XML document through the RSS reader to update the blog's update information without visiting the specific site. Can be collected. Users simply register the RSS feed URLs for their favorite blogs in the RSS reader program and receive the latest information on the blogs they want to subscribe to. Although the blog is taken as an example, all content information of a site that provides an RSS service can be retrieved using RSS without visiting the site.

Media RSS is an extension of the RSS protocol and has been proposed to distribute various types of media such as TVs, video clips, and movies in addition to audio files and images provided through RSS. Podcasts are a typical media distribution using media RSS.

1 is a flowchart illustrating a method of distributing content using RSS.

Referring to FIG. 1, content distribution using RSS is performed between an RSS server 11, an RSS client 12 having an embedded RSS reader, and a mobile device 13 for using the distributed content. The mobile device 13 is a device used when playing content on a separate device other than the RSS client 12.

In step 101, the user subscribes to the RSS reader program for the content provided by the RSS server 11. As mentioned above, the content is subscribed simply by inputting the URL of the RSS feed into the RSS reader of the RSS client 12. The PC running the RSS reader program will mainly correspond to the RSS client 12.

In step 102, the RSS server 11 provides the RSS client 12 with a list of the content it holds, and the RSS client 12 downloads the corresponding content.

In operation 103, the user may transmit the downloaded content to a separate content player such as the mobile device 13, thereby playing the content outside the RSS client 12 using the mobile device 13. For example, this is the case when the MP3 audio file is played through an external small MP3 player rather than the client PC.

In step 104, the RSS reader of the RSS client 12 checks whether the content of the RSS server 11 is updated, that is, there is new content.

In step 105, the RSS client 12 retrieves the content list of the RSS server 11 and downloads the new content through the RSS reader if there is new content, and transmits the new content to the mobile device 13 again in step 106. Play the content on the device.

As shown in FIG. 1, according to the related art, in order for the content to be finally transmitted to the mobile device 13 having no embedded RSS reader, the RSS client 11 device such as a PC having an embedded RSS reader must deliver the content. It is troublesome to have to relay.

In addition, if the available resources such as the hard disk capacity of the RSS client 11 device are not enough to store all the content, the content cannot be stored.

Accordingly, an object of the present invention is to provide a method and apparatus for storing content for overcoming the above disadvantages of the prior art, and to provide a computer readable recording medium having recorded thereon a program for executing the method on a computer. It is.

According to an aspect of the present invention, there is provided a method for a first client to store content provided by a server in a second client, the method including: receiving an XML document including metadata of contents provided by the server; Extracting address information of at least one downloadable content of the contents with reference to the document; And transmitting the extracted address information to the second client.

According to a preferred embodiment of the present invention, the document provided by the server is characterized in that the RSS (Really Simple Sydication) feed (feed).

According to a preferred embodiment of the present invention, the document provided by the server is characterized in that the media RSS (Media RSS) feed (feed).

According to an aspect of the present invention, there is provided an apparatus for storing a content provided by a server in a second client by a first client, the receiving unit receiving an XML document including metadata of contents provided by the server; An extracting unit extracting address information of at least one downloadable content among the contents with reference to the document; And a transmitter for transmitting the extracted address information to the second client.

In order to solve the above technical problem, the present invention provides a computer-readable recording medium having recorded thereon a program for executing the method on a computer.

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

2 is a flowchart illustrating a method of storing content according to a first embodiment of the present invention.

In step 201, the RSS client 22 having the embedded RSS reader registers the subscription of the RSS server 21. For example, the above-described subscription can be performed by inputting a URL of an RSS feed into an RSS reader.

In step 202, the RSS client 22 downloads a list of contents owned by the server from the RSS server 21. The content list contains metadata of the content, and is preferably written in a document in XML format using RSS.

In step 203, the RSS client 22 extracts the address information of the content to be downloaded from the content list and transmits it to the storage device 23 on the network. Preferably, the RSS client 22 may determine whether the content needs to be stored, and optionally transmit address information. In addition, even when storage is required, distributed storage on a network can be controlled by transmitting an address of the content to different storage devices according to predetermined criteria such as the type or capacity of the content. Distributed storage is controlled using metadata for the content contained in the XML document, for example, any first storage device on the network only stores MP3 files, and only second storage device video files. To control distributed storage.

In operation 204, the storage device 23 on the network receiving the content address requests the RSS server 21 to transmit the content directly according to the received address. There is no limitation on the method for requesting the transmission of the content. Preferably, the content may be requested to be transmitted using an HTTP GET command.

In operation 205, the storage device 23 downloads the content from the RSS server 21. The disadvantage is that the content must go through the RSS client of the prior art in that the content can be stored directly on the storage device on the network without having to go through the client with the embedded RSS reader.

The storage device 23 that downloaded the desired content in step 206 registers the content with the RSS reader of the RSS client 23 to inform that it is storing the content.

If the RSS client 22 is not a device that can store the content, if there is not enough storage space to store the current content, if it is stored on the client 22 but you want to save it to another storage device for backup. Etc., the contents may be stored in other storage devices 23 on the network through steps 201 to 206.

3 is a flowchart illustrating a method of storing content according to a second embodiment of the present invention.

In step 301, the RSS client 32 with the embedded RSS reader registers the subscription of the RSS server 31.

In step 302, the RSS client 32 downloads a list of contents owned by the server from the RSS server 31. The content list contains metadata of the content, and is preferably written in a document in XML format using RSS.

In operation 303, the RSS client 32 extracts address information of the content to be downloaded from the content list and transmits the address information to the content player 33. Here, as in step 203 of FIG. 2, the RSS client 22 determines whether content is required to be stored and selectively transmits address information. In addition, even when storage is required, distributed storage on a network may be controlled by transmitting an address of the content to different storage devices according to predetermined criteria such as the type or capacity of the content. When the content is an MP3 file, the URL address of the content may be transmitted to the MP3 player or the audio playback device. When the content is a video streaming file, the URL address may be transmitted to the PMP or the DTV to store the content.

In step 304, the content player 33 receiving the address of the content requests the RSS server 31 to directly transmit the content according to the received address. There is no limitation on the method for requesting the transmission of the content. Preferably, the content may be requested to be transmitted using an HTTP GET command. While the first embodiment shown in FIG. 2 stores content in a storage device 23 on a network, the second embodiment shown in FIG. 3 stores content such as an MP3 player or a PMP by directly storing the content in a device capable of playing the content. There is provided a method that can be stored directly to the desired mobile device.

In step 305, the content player 33 downloads the content from the RSS server 31.

In step 306, the content player 33 that downloads the desired content registers the content with the RSS reader of the RSS client 32 to inform that it is storing the content.

4 is a flowchart illustrating a method of storing content according to a third embodiment of the present invention.

In step 401, the content player 42 with the embedded RSS reader registers a subscription of the RSS server 41. 2 to 3 is different from the PC is used as a content playback device such as MP3 or PMP as a client embedded RSS reader. In general, a content player has a limited amount of available resources compared to a PC, and therefore, there is a greater need for a PC to store content provided by an RSS server in another storage device on a network.

In step 402, the content player 42 with a built-in RSS reader downloads a list of content owned by the server from the RSS server 41.

In step 403, the content player 42 with the embedded RSS reader extracts address information of the content to be downloaded from the content list and transmits the address information to the storage device 43 on the network. Here, as in step 203 of FIG. 2, distributed storage on a network may be controlled by transmitting an address of the content to different storage devices according to specific criteria such as the type or capacity of the content.

In operation 404, the storage device 43 on the network receiving the address of the content requests the RSS server 41 to directly transmit the content according to the received address. There is no limitation on the method for requesting the transmission of the content. Preferably, the content may be requested to be transmitted using an HTTP GET command.

In step 405 the storage 43 downloads the content directly from the RSS server 41.

In operation 406, the storage device 43 that downloads the desired content registers the content with the RSS reader of the content player 42 having the built-in RSS reader to inform that the user is storing the content.

5 is a flowchart illustrating a method for storing content by an RSS client according to an exemplary embodiment of the present invention.

In step 50, the RSS client receives an XML document containing metadata of contents that the RSS server can provide from the RSS server.

In step 52, the RSS client analyzes the XML document to determine whether the content needs to be stored. In the case of downloading new content and storing it in another client for backup, it is determined whether the corresponding content needs to be downloaded. If it is necessary to download, the address information of the content to be downloaded is transferred to other clients on the network via steps 54 to 56, and if it is not necessary to download, the process ends.

In step 54, the RSS client extracts the address information of the content included in the XML document. The XML document contains metadata of the content to be downloaded, and since the metadata includes URL information of the content, this information is extracted.

In step 56, the RSS client transmits the address information extracted in step 54 to other clients on the network. Other clients on the network include, but are not limited to, storage devices and content playback devices on the network, and may include any network device capable of directly downloading a content by directly accessing a server. The method of transmitting address information to other clients on the network is not limited, and may be transmitted according to an existing communication protocol or a new communication protocol may be defined and transmitted.

Distributed storage on a network can be controlled by transmitting an address of the content to different clients according to specific criteria such as the type or capacity of the content.

6 illustrates a method for storing content by a client on a network according to a preferred embodiment of the present invention. 6 is a flowchart illustrating a method in which a client on a network receives address information from an RSS client and stores corresponding content.

In step 60 the client receives address information of the content from the RSS client. The address information includes URL information of the content to download.

In step 62, the client requests the RSS server to transmit the content, and in step 64, the client stores the content to complete the download of the content.

7 illustrates an RSS client in accordance with a preferred embodiment of the present invention.

The receiver 71 receives an XML document storing metadata of contents held by the RSS server from the RSS server. Preferably, the above-described XML document is a document written using RSS or MRSS.

The content address information extractor 72 extracts address information of content that needs to be downloaded from the XML document received by the receiver 71. Preferably, URL information of the content included in the XML document is extracted as address information.

The transmitter 73 transmits the address information extracted by the content address information extractor 72 to the client on the network. Preferably, the client is primarily a storage device or a content player on the network, but is not limited thereto.

8 illustrates a client on a network in accordance with a preferred embodiment of the present invention.

The address information receiver 81 receives address information of content from an RSS client connected through a network. There is no limitation on the communication protocol regarding the method of transmitting and receiving the address information.

The transmission requester 82 requests the RSS server that holds the content to transmit the content according to the address information received by the address information receiver 81. It has been described above that the HTTP GET command can be used in the preferred embodiment.

The database 83 stores the content transmitted by the RSS server according to the request of the transmission requester 82.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited to the above-described embodiments, which can be variously modified and modified by those skilled in the art to which the present invention pertains. Modifications are possible. Accordingly, the spirit of the invention should be understood only by the claims set forth below, and all equivalent or equivalent modifications will fall within the scope of the invention. In addition, the system according to the present invention can be embodied as computer readable codes on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and also include a carrier wave (for example, transmission through the Internet). The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion.

According to the present invention, the content can be directly stored in a client that does not have an embedded RSS reader, and the content can be distributed and stored in a plurality of clients, so that the content can be stored even when the storage capacity of the client supporting RSS is insufficient.

Claims (5)

A method in which a first client stores content provided by a server in a second client, the method comprising: Receiving an XML document including metadata of contents provided by the server; Extracting address information of at least one downloadable content of the contents with reference to the document; And transmitting the extracted address information to the second client so that the second client can directly request the content from the server. The document of claim 1, wherein the document provided by the server is: Content storage method characterized in that the RSS (Really Simple Sydication) feed (feed). The document of claim 1, wherein the document provided by the server is: A method of storing content, characterized in that it is a media RSS feed. An apparatus in which a first client stores content provided by a server in a second client, the apparatus comprising: A receiving unit for receiving an XML document including metadata of contents provided by the server; An extracting unit extracting address information of at least one downloadable content among the contents with reference to the document; And a transmitter for transmitting the extracted address information to the second client so that the second client can directly request content from the server. A computer-readable recording medium having recorded thereon a program for executing the method of any one of claims 1 to 3.

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