KR100924314B1 - System for protecting multi-media data source and method thereof - Google Patents

Abstract

The present invention relates to a system and method for protecting a multimedia content source on a network.

The multimedia content source protection system according to the present invention is a web server module for posting multimedia data source access information including a web program address, which is an address of a web program that supports exposure or playback of multimedia data in a web browser, and exposure and playback on a web page. A media file server for storing multimedia data related files for transmitting the multimedia data player files and the multimedia data source files to the web browser of the multimedia data receiving client based on the installation information data received from the multimedia data receiving client for controlling the transmission of the multimedia data source files. A data file controller for determining whether a multimedia data player is installed and a web for exposing or playing the multimedia data in response to the determination of the data file controller Provided is a multimedia content source protection system including a program driver.

Tag, multimedia data, video content protection

Description

Multimedia data source protection system and its method {SYSTEM FOR PROTECTING MULTI-MEDIA DATA SOURCE AND METHOD THEREOF}

The present invention relates to a system and method for protecting a multimedia data source on a network. More particularly, the present invention relates to a multimedia data file to a receiving client after confirming whether the multimedia data player is installed in a web browser of the multimedia data receiving client. A system and method for protecting a multimedia data source on a network by transmitting.

Hereinafter, the conventional technology will be described based on a moving picture data service system as one example of a multimedia data service.

In the conventional moving picture data service system, moving picture data is stored in a specific file server and distributed in the news site, portal site, blog, personal homepage, or the like by distributing access information of the moving picture data.

In recent years, video data captured by ordinary users under the name of User Created Content (UCC) or video data edited from existing video data has been used by many people for the purpose of not only promoting personal information but also delivering news information and distributing advertisements. It is evolving into usable content.

1 is a diagram schematically illustrating a service system of moving image data in the related art. The video data service system illustrated in FIG. 1 includes a video recording apparatus 10 and 20 of a video provider, a video data editing apparatus 11, a video platform server 30, a video distribution server 40, and a video receiving client 50 and 51. , 52).

The video provider may directly transmit the captured video to the video platform server 30 by using the owning apparatuses 10 and 20. Alternatively, the captured video data is edited using the editing device 11 and transmitted to the video platform server 30.

The video platform server 30 stores the transmitted video data and provides the video distribution server 40 with access information for accessing the video data. The video platform server 30 and the video distribution server 40 may be operated on separate systems or integrated systems.

The video distribution server 40 may be a portal or a news site, and recently, may be operated by a service site that distributes videos professionally. The video distribution server 40 provides access information of the video content along with text and image content, so that the clients 50, 51, and 52 view the video stored in the video platform server 30 through the video content access information. Do it.

The user can watch the video using a professional video viewing program installed in the client (50, 51, 52). In addition, recently, a technology has been developed that encodes a video to a flash file having a “flv” extension and provides a video player so that a user can watch a video even without a specific video viewing program.

Unlike general video files, the Flash files provide various editing functions such as special effects and overlay functions, and can easily insert links or advertisements that move to other sites. Make it possible. For example, based on the number of times that video data inserting a specific advertisement is distributed and played or the number of clicks on an advertisement, commercial use such as sharing the income between the original creator and the middle distributor of the video and the advertisement is possible.

In particular, recently, a video data service system provides a video related file other than a video source file and posts an advertisement or original author through a video related file and uses it commercially. Therefore, video-related files such as video players play an important role in the commercial use of video data service systems.

Such video related files are generally distributed along with video source files. However, video distribution that extracts and distributes only video data sources from these video-related files is problematic. In other words, unauthorized extraction and distribution of video sources undermines the revenue structure of the video data service system described above. In addition, when the video source address is extracted and distributed online, the video data service system bears a huge traffic burden.

In order to prevent the illegal distribution of the video, conventionally, the address of the video source is periodically changed, or in order to prevent the extraction of the video source itself, invalidate the command of the mouse's right-click on the web page, or the video source using JavaScript. Using a method to hide the video content source was protected.

However, changing each video source periodically is very cumbersome, and the method of disabling the right click of the mouse or hiding the video source using JavaScript is how to control the video receiving client. It is not a way to fundamentally protect video content sources, as it can invalidate the method. Therefore, there is a need for a method of protecting a video content source in a video platform system rather than a video receiving client.

The necessity of protecting the content source is applied not only to moving images but also to various multimedia data services such as images, charts and sound sources.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and provides a multimedia data source file only when the multimedia data service system searches for itself whether a multimedia data player is installed in a web browser of a client and a video player is installed. An object of the present invention is to provide a video content source protection system to provide.

In order to achieve the above object, a first aspect of the present invention provides a web server module for publishing multimedia data source access information including an address of a web program supporting multimedia data exposure or playback in a web browser; A media file server for storing multimedia data related files for exposure and playback in a web page; A file transfer control unit which checks whether a multimedia data player is installed in a web browser of the multimedia data reception client and allows transmission of a multimedia data source file when the multimedia data player is installed; And a web program driver for transmitting a multimedia data player file by driving a web program corresponding to the received web program address, and transmitting the multimedia data source file under the control of the file transfer controller. Provide a system.

In addition, a second aspect of the present invention includes the steps of: receiving a web program address which is an address of a web program supporting multimedia data exposure or playback in a web browser; Transmitting a multimedia data player file by driving a web program corresponding to the web program address; Determining whether the multimedia data player is installed by receiving installation information data indicating that the multimedia data player is installed in a web browser of the multimedia data receiving client; And transmitting a multimedia data source file in response to the determination of the installation.

In addition, a third aspect of the present invention includes the steps of: receiving a request for transmission of a multimedia data source file from a client; Determining whether installation information indicating that a multimedia data player corresponding to the request is installed is transmitted from the client; And blocking the transmission of the multimedia data source file when the installation information is not transmitted.

In addition, the fourth aspect of the invention, the function of installing a multimedia data player file transmitted from the multimedia data platform system; Generating the installation information when a multimedia data player is installed; And a program for performing a function of receiving a multimedia data source file by transmitting the installation information to the multimedia data platform system.

According to the present invention, after the multimedia data platform system receives the multimedia data player installation information from the multimedia data receiving client and confirms that the player is installed in the web browser of the multimedia data receiving client, the multimedia data platform system transmits the video source file to the video receiving client. The provided video is exposed or reproduced through a specific player, thereby preventing the unauthorized distribution of multimedia content sources. Therefore, the platform operator can stably operate the advertising revenue model through the multimedia distribution, and can expect a remarkable effect to prevent the traffic caused by unauthorized users.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "electrically connected" with another element in between. . In addition, when a part is said to "include" a certain component, which means that it may further include other components, except to exclude other components unless otherwise stated.

Hereinafter, an embodiment of the present invention will be described with an example of a video of multimedia data.

However, in the present invention, the multimedia data is a concept including not only "video" but also "text", "chart", "image", "graph", "photo", "sound source", and various combinations thereof. However, for convenience of description, the following embodiment will be described based on the video distribution path tracking. Those skilled in the art will appreciate that the following embodiments can be applied to tracking the distribution path of any of the multimedia data described above.

In addition, the video in the embodiment of the present invention describes the low-performance software "flash" and "flash-based file format" by way of example, while "video" is "MPEG2", "MPEG4", "H.264", " Includes all content with motion in frames, including file formats such as WMV ”,“ ASF ”,“ AVI ”,“ DIVX ”, and“ XVID ”.

In addition, the low-performance software or delivery solution can also be provided based on Microsoft's “Siver light”.

In addition, the "player" described in the embodiments of the present invention may be replaced by a program or a tool for exposing, playing, or launching any multimedia data.

In addition, the "player" should be understood as a medium for exposing or playing the multimedia data through a legal path.

In the present invention, the term "video exposure" is a concept that includes both the exposure of a video including a still picture before playback and the exposure of a video by playback.

In addition, in the present invention, the video source may be published on a web page using a <object> tag, other methods, and the like, by exposing a video player to a web browser and calling video content. Here, the <object> tag is merely an example, and any tag (eg, an <embed> tag) may be used in an embodiment of the present invention as long as the above-described mounting function is performed. When there is a video call, the request for starting the web program is made by transmitting the address of the web program.

2 is a block diagram showing the overall configuration of a video content source protection system according to an embodiment of the present invention.

When the video receiving client 100 opens a web page including video source access information, the video receiving client 100 transmits a web program address for displaying or playing a video to the video platform system 200. The video receiving client 100 receives the video player file from the video platform system 200, installs the video player 300 in the web browser of the video receiving client 100, and stores the video player installation information data.

Such video player installation information data may be preferably stored in a cookie of the video receiving client 100.

Thereafter, the video receiving client 100 transmits the video player installation information data stored in the cookie to the video platform system 200 to request transmission of the video source file. Then, the video source file is received from the video platform system 200 and the video source is downloaded using the video player 300 installed above. The video receiving client 100 may be a personal computer, a notebook, a mobile communication terminal, a PDA, a web pad, or the like.

In addition, the video player installation information may be a key value. That is, when the legitimate video player 300 is installed, the player transmits a key value to the video platform system 200, and if the key value is valid, the video content is downloaded.

The key value does not directly indicate that the video player is directly installed, but may be transmitted under the premise that the video player 300 is installed. Therefore, the key value will be described as being included as one of the video player installation information.

The key value may be included in access information of a video content source in a URL format, and the video platform system 200 may take the key value in a specific identifier of the URL.

In addition, the key value may be automatically transmitted, or may be transmitted each time a service request is generated by pressing the play button of the player.

Meanwhile, the video platform system 200 uploads captured video data or data edited from existing video data through a network, and encodes and stores the uploaded video in a specific format (for example, a “flv” file format). do. The stored video data may be played by a user of the video receiving client 100 through a player in the form of a flash file (eg, a “swf” file).

The video platform system 200 receives a web program address from the video receiving client 100. The video player file corresponding to the web program address is transmitted to the video receiving client 100. The video platform system 100 then receives the video player installation information data from the video receiving client 100. When the video platform system 200 receives the video player installation information data from the video receiving client 100, the video platform system 200 transmits a video source file corresponding thereto to the video receiving client 100.

When the video platform system 200 receives the video player installation information data from the video receiving client 100 through the above-described configuration, that is, when it is confirmed that a legitimate video player is installed in the web browser of the video receiving client 100. Only the video source file is transmitted to the video receiving client 100 so that the video is played only through the authenticated video player. As a result, the video platform system 200 may prevent the video from being played through an unauthorized video player and protect the video content source in the video platform system 200.

3 is a block diagram showing a detailed configuration of a video platform system 200 according to an embodiment of the present invention.

The video platform system 200 includes a web server module 210, a media file server 220, an encoding server 230, a file transfer controller 240, a DB server 250, and a web program driver 260. Components of the video platform system 200 may be implemented as separate hardware, but may be implemented as a program installed on one hardware.

The web server module 210 provides a web page for users to perform web-based communication to the video platform system 200. Through a web page provided by the web server module 100, users may register a video or take call information regarding the registered video, that is, video source access information (eg, an <object> tag). In addition, the web server module 210 communicates with the video receiving client 100 through an internet communication protocol (for example, http protocol).

The media file server 220 stores encoded video data and video related files to be provided by the web server module 210. Links or <object> tag information, i.e., video source access information, including a web program that can access the stored encoded video data are posted to the web server module 210 of the video platform system 200, and the video platform system 200 ), So that users who visit the web page can copy and embed the so-called "embedded".

The encoding server 230 encodes a video registered by the video registrant in a specific manner (for example, a flash method). In addition, it performs a function of inserting advertisements, watermarking, link information, image information, and the like into a video, and inserts a program for acquiring environment variables into a video-related file. The encoding server 230 may encode an arbitrary video file in a “flv” file format using, for example, a codec developed by ON2 Technologies of the United States.

The file transmission control unit 240 receives the video player installation information data and checks whether the video player is installed in the web browser of the video receiving client. After the installation is confirmed, the file transfer control unit 240 allows the transmission of the video source file corresponding to the web program address. The video player installation information data may be cookie information transmitted from a web browser or a key value included in a play request of the video player.

The DB server 250 may include a plurality of databases. For example, information related to an encoded media file, information about a video registrant or advertiser, information about a video related file corresponding to a web program, environment variable information of a web browser, and exposure information of a video player may be stored in a database. Can be.

The web program driver 260 drives a web program corresponding to the web program address transmitted to the video platform system 200. The web program largely calls a video related file for playing a video to perform exposure or playback of the video and obtains a web browser environment variable for tracking video exposure. Accordingly, the web program driver 260 requests the media file server 220 for the called video file and stores the obtained browser environment variable information in the DB server 250. The video related file includes a video player file and a video source file, and the transmission of the video source file is controlled by the file transfer control unit 240.

4 is a block diagram illustrating a detailed configuration of the file transfer control unit 240.

The file transfer controller 240 includes a video source file transfer controller 242 and installation information data receiver 244.

The video source file transmission control unit 242 transmits the video source file corresponding to the received web program address when it is confirmed by the installation information data receiving unit 244 that the video player is installed in the web browser of the video receiving client. Allow. As such, the video source file transmission control unit 242 allows the transmission of the video source file after it is confirmed that the video player is installed in the web browser of the video receiving client, thereby allowing the video to be played through the authenticated video player.

The installation information data receiving unit 244 receives the installation information of the video player from the video receiving client and checks whether an authenticated video player is installed in the web browser of the video receiving client.

The installation information may be recorded and transmitted in a part of a cookie generated by the web browser calling the video. For example, a part of the cookie may be informed that the player is allowed to play the video, such as [player = tagstory].

In addition, the installation information may be a key value included in the video source access information transmitted from the video player when a video playback request is made. The video source access information may be in the form of a URL, and the key value may be encrypted in a specific identifier of the URL. The key value is extracted from the URL to determine whether it is valid, and if it is a valid key value, the video source file transmitter 242 transmits the video source file.

5 is a flowchart illustrating a method of protecting video content according to an embodiment of the present invention.

In step S100, a video is called in the web browser of the video receiving client, and a web program address corresponding to the called video is transmitted to the video platform system.

In step S105, the video platform system receives the web program address from the video receiving client. The received web program address corresponds to a video called from the web browser of the video receiving client, and the web program for exposing and playing the video operates in response to receiving the web program address.

In step S110, the video platform system transmits the video player file by running the web program in response to the web program address received in step S105. The video player file to be transmitted may be a file in the form of a flash file (eg, a “swf” file).

In step S115, the video receiving client receives the video player file transmitted in step S110 and installs the video player in the web browser using the video player file.

In step S120, the video receiving client stores installation information of the video player installed in step S115.

The video player installation information may be stored in a cookie of a web browser in which the video is serviced. The video player installation information may also include information such as the version (version) of the video player, the installation time or whether the installation.

On the other hand, when the video player directly transmits the video player installation information such as a key value, step S120 may be omitted.

In step S125, the video receiving client transmits the video player installation information stored in step S120 to the video platform system.

The video player installation information may be included in a cookie transmitted by the client to the video platform system.

Alternatively, the video player installation information may be transmitted by including a specific key value in the video data source access information when the video is played through the video player.

In operation S130, the video platform system determines whether video player installation information has been received from the video receiving client in order to determine whether to continue the video providing service. The video platform system may check whether the video player is installed in the web browser of the video receiving client by checking whether the video player installation information is received.

As described above, the video player installation information may be a value stored in a cookie transmitted from a browser or a valid key value transmitted at the time of a video playback request.

In step S135, if it is determined in step S130 that the video player installation information has been received, the video platform system transmits the video source file to the video receiving client. The video source file is a file directly required for video playback and is transmitted to the video receiving client only when the video platform system receives the video player installation information. The video source file can be a file in “flv” format.

In step S140, the video receiving client plays the video through the video player installed in the web browser using the video source file transmitted by the video platform system in step S135.

If it is determined in step S145 that the video player installation information is not received in step S130, the video platform system determines that the video player is not installed in the web browser of the video receiving client, and terminates the video providing service.

Through the above configuration, even if an illegal user finds the online address of the video source file, the user cannot download or play the video source on any web page.

Although the embodiment illustrated in FIG. 5 is described in terms of an operation of responding to a video call of a web browser including video source access information, it will be appreciated that the same operation is performed in view of preventing an illegal video source file request.

That is, if the video source file access information is directly found through packet analysis of the downloaded video source file, and the video source file is requested, the video platform system sends a message from the client prior to the transmission of the video source file. The method may determine whether installation information indicating that the video player corresponding to the request is installed is transmitted. If the installation information is not transmitted, the video source file may be protected even if the video source file access information is found by blocking the transmission of the video source file.

It can be easily understood by those skilled in the art that such a configuration is obviously derived from the embodiment shown in FIG. 5.

In addition, from a video receiving client, video source access information included in a web browser drives a web program to download a video related file. Some of the video-related files may be understood to perform the function of installing the video player and storing the video player installation information in a cookie. The cookie including the installation information is transmitted to the video platform system to enable downloading of the video source in the future.

As described above, it will be appreciated that the moving picture data source in the embodiment of the present invention can achieve the object of the present invention through the same mechanism even if it is replaced by the source of any multimedia data.

In addition, the player of the multimedia data will be easily understood to mean a program or tool for exposing, playing, or launching any multimedia data.

In addition, it will be appreciated that the "flash", which is the slow-acting software, may be replaced by any low-acting software or multimedia delivery solution such as Microsoft's "silver light".

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The present invention can also be implemented in the form of a recording medium containing instructions executable by a computer, such as a program module executed by a computer. Computer readable media can be any available media that can be accessed by a computer and includes both volatile and nonvolatile media, removable and non-removable media. In addition, computer readable media may include both computer storage media and communication media. Computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave, or other transmission mechanism, and includes any information delivery media.

Although the methods and systems of the present invention have been described in connection with specific embodiments, some or all of their components or operations may be implemented using a computer system having a general hardware architecture.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a diagram schematically illustrating a service system of moving picture data according to the prior art.

2 is a block diagram showing the overall configuration of a video content source protection system according to an embodiment of the present invention.

3 is a block diagram showing a detailed configuration of a video platform system according to an embodiment of the present invention.

4 is a block diagram showing a detailed configuration of a file transfer control unit.

5 is a flowchart illustrating a method of protecting video content according to an embodiment of the present invention.

Claims (13)

In the multimedia data source protection system, A web server module for calling multimedia related files including a multimedia data player and a corresponding multimedia data source to post multimedia data source access information including the address of a web program exposed and played on a web browser; A media file server for storing the multimedia data related file for exposure and playback in a web page; A file transfer control unit which checks whether a corresponding multimedia data player is installed before transmitting the multimedia data source, and permits transmission of a corresponding multimedia data source file when the multimedia data player is installed; And By transmitting a web program corresponding to the received web program address, the multimedia data player file is transmitted, and when it is confirmed that the multimedia data player file is transmitted to the web browser, the multimedia corresponding to the multimedia data player file Web program driver for transmitting data source files Multimedia data content source protection system comprising a. The method of claim 1, wherein the file transfer control unit An installation information data receiver configured to receive installation information data of the multimedia data player from the multimedia data reception client and determine whether the multimedia data player is installed in a web browser of the multimedia data reception client; Multimedia data source file transmission control unit for controlling the transmission of the multimedia data source file in accordance with the determination of the installation information data receiving unit Multimedia data content source protection system comprising a. The method according to claim 1 or 2, And said installation information data is data contained in a cookie transmitted from said multimedia data receiving client. The method according to claim 1 or 2, And said installation information data is a valid key value sent from said multimedia data receiving client. The method of claim 4, wherein And the key value is included in the source access information of the multimedia data transmitted during the operation of the multimedia data player. A method of protecting a multimedia data content source, the method comprising: Calling a multimedia related file including a multimedia data player and a corresponding multimedia data source to receive a web program address which is an address of a web program exposed and played on a web browser; Transmitting a multimedia data player file by driving a web program corresponding to the web program address; Determining whether the multimedia data player is installed by receiving installation information data indicating that the multimedia data player is installed in a web browser of the multimedia data receiving client; And Transmitting the multimedia data source file corresponding to the multimedia data player in response to the installation determination and exposing and playing the same through the multimedia data player; Multimedia data content source protection method comprising a. The method of claim 6, And the installation information data is data included in a cookie of the multimedia data receiving client. The method of claim 6, And said installation information data is a valid key value sent by a player of said multimedia data receiving client. The method according to claim 7 or 8, And the key value is included in source access information of multimedia data transmitted when the multimedia data player is operated. delete delete delete delete

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