KR20100066296A - Apparatus of providing digital contents using dmb channel and method thereof - Google Patents

Abstract

PURPOSE: A device and a method for providing digital contents by enabling DMB transmission unit to use DMB channel are provided to enable a user to obtain various information about contents through a DMB channel. CONSTITUTION: A contents storage unit(124) stores a contents file. An advertisement information generator unit(132) generates advertisement information about the saved contents file. A DMB transmission unit(146) broadcasts the generated advertisement information to DMB terminals within the constant radius by using the DMB channel. The advertisement information includes location information of digital contents providing device(100). A contents file selecting unit selects one or more contents files of the saved contents file according to the fixed standards.

Description

 Apparatus of providing digital contents using DMB channel and method thereof

The present invention relates to an apparatus and method for providing digital content. More specifically, the present invention relates to a digital content providing apparatus using the DMB channel and a method thereof.

The present invention is derived from the research conducted as part of the IT growth engine technology development project of the Ministry of Knowledge Economy and the Ministry of Information and Telecommunications Research and Development. ].

Recently, various additional functions are mounted in various forms in a mobile phone, which is a representative personal mobile communication device. Mobile phones already have features such as high-resolution camera phones and digital multimedia broadcasting (DMB) reception, and are already equipped with file viewers or text viewers that smartphones have had. In addition, mobile phones equipped with video player and MP3 player functions have already become representative mobile terminals widely used. In addition to the original video and music playback, text viewer, and navigation functions, PMP (Portable Multimedia Player) includes a wireless communication device such as an HSDPA modem or a wireless LAN device and a function of wirelessly connecting to the Internet by using an Internet browser. Had Recently, Apple's iPod Touch (i-Pod touch) has various video and music playback functions and slideshows, and its own wireless LAN function allows users to connect to the Internet and purchase digital content online. Providing.

Meanwhile, the various portable terminals mentioned above are rapidly spreading to the public through various technological evolution processes. In response to this trend. Digital contents providing apparatuses for providing or selling multimedia contents such as various movies, dramas, music videos, e-books, etc. currently sold online to a portable terminal offline have been developed.

The above-described digital content providing device is installed indoors or outdoors collected by a user, receives the digital content from a central server using a pre-stored wired data network according to a user's request, and transmits the digital content to a portable terminal. Device to perform. The digital content providing device provides content data to a portable terminal of a user without a separate packet fee. Therefore, the user can conveniently provide the digital content at a desired place at a much lower cost than the existing digital content through the wireless Internet service of the mobile carrier.

However, despite many advantages of the digital content providing apparatus as described above, the user (ie, the buyer) does not recognize the location of the digital content providing apparatus or provides information on various contents sold in the digital content providing apparatus. There is a drawback to failure to provide a purchase, which leads to a purchase failure.

In addition, in order to sell content through the digital content providing device, there are inconveniences in that operators operating the content providing device must periodically upload and convert the content to meet a predetermined format. In other words, the contents must be converted to a certain format so that the contents can be sold through the content providing device, and the meta information (eg, screenshot) of the contents must be generated and uploaded together with the contents.

The present invention is designed to solve the above problems,

Providing information on various contents sold in the digital content providing device and location information of the content providing device to the DMB receiving terminal within a certain radius through the DMB channel, thereby providing information and content on various contents through the DMB channel. An object of the present invention is to allow users who have received location information on a device to easily access a content providing device to receive desired content.

In addition, by receiving a variety of content provided through the DMB channel and converts it into a predetermined format that can be sold and automatically stores it (by generating metadata about the content and converting and storing the content to the specifications required for sale), the content Not only can vending machine operators have to convert the content to upload the content individually. More diverse content can be provided to users.

According to an aspect of the present invention, there is provided a digital content providing apparatus including a content storage unit that stores a content file; An advertisement information generation unit generating advertisement information on a content file stored in the content storage unit; And a DMB transmitter for broadcasting the generated advertisement information to DMB terminals within a predetermined radius using a DMB channel.

In particular, the advertisement information may include location information of the digital content providing device.

The advertisement information generation unit may further include a content file selection unit configured to select one or more content files among the content files stored in the content storage unit according to a set criterion; And a screen information extracting unit extracting screen information for advertisement from the selected content file.

The content file selection unit may select one or more content files among the content stored content files based on a frequency of selection from a user.

The apparatus may further include a metadata extracting unit for extracting one or more metadata among contents name, service type, playing time, resolution, library required for playing, plot, distribution condition, producer, representative screen file name, and selling price from the selected content file. It is characterized by that.

The screen information extracting unit may extract a plurality of representative screens when the content file is a video file, and set one of the plurality of representative screens as a representative screen for the video file by receiving a user selection. It is done.

In addition, the DMB receiving unit for receiving a DMB signal; An information extraction unit for extracting meta information from the received DMB signal; And a recording unit for recording DMB broadcasting content according to a recording rule set based on the meta information.

The apparatus may further include a content converter which receives metadata associated with the recorded DMB broadcast content, converts the metadata into a salable content file, and stores the converted content file in the content storage unit.

The metadata may include one or more of contents, person information, playback time, file size, price, and category information of the recorded DMB broadcasting content.

The apparatus may further include a recording rule storage unit configured to receive and store a recording rule for retrieving the specific meta information from a user.

In addition, by using the terrestrial DMB channel is characterized in that the broadcast to the DMB terminal within a certain radius.

On the other hand, the digital content providing method of the present invention, the digital content providing apparatus for providing digital content using the DMB channel, comprising the steps of: generating advertisement information for the content file stored in the content storage; And broadcasting the generated advertisement information to DMB terminals within a predetermined radius using a DMB channel.

In particular, the advertisement information may include location information of the digital content providing device.

The generating of the advertisement information on the stored content file may include: selecting one or more content files of the stored content files according to a set criterion, and extracting advertisement screen information from the selected content file; And extracting metadata from the selected content file.

In addition, receiving a DMB signal; Extracting meta information from the DMB signal and recording DMB broadcast content according to a recording rule set based on the extracted meta information; And receiving metadata associated with the recorded DMB broadcast content, converting the metadata into a salable content file and storing the metadata in the content storage unit.

According to the present invention, the following effects can be obtained.

A user using the digital content providing apparatus may obtain various information about the content through the DMB channel, and when the desired content exists, the user may move to a nearby digital content providing apparatus to receive various contents.

In addition, an operator who wants to sell content through the digital content providing device may use a variety of content received through the DMB channel to promote a variety of content that can be sold. Therefore, the effort of converting and uploading the content in order to update the content is not only reduced, but also various contents can be provided to the user, thereby improving the sales.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Here, the repeated description, well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention, and detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more completely describe the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for clarity.

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

1 is a view for explaining a digital content providing apparatus (hereinafter, referred to as a content providing apparatus) using a DMB channel according to the present invention in detail. FIG. 2 is a diagram for describing in detail the configuration of the advertisement information generation unit 132 of FIG. 1.

Referring to FIG. 1, the content providing device 100 according to the present invention includes a DMB receiver 110, a reception signal processor 112, an error correction unit 114, an information extractor 116, a recording unit 118, Recording rule storage unit 120, content storage unit 124, content conversion unit 126, control unit 130, advertising information generation unit 132, interaction unit 134, DMB transmitter 146, transmission signal A processing unit 142 and a network communication unit 150.

The DMB receiver 110 receives a Digital Multimedia Broadcating (DMB) signal that is broadcast through DMB channels (including satellite and terrestrial DMB channels) and transmits the same to the reception signal processor 112.

The reception signal processor 112 converts a signal of the DMB frequency band received through the DMB receiver 110 into a baseband orthogonal signal, selects a channel from the orthogonal signal, and extracts original data corresponding to the selected channel. The error correction unit 114 processes forward error correction (FEC) to output TS (Transport Stream) data. Since the DMB cannot be retransmitted when an error occurs because the DMB is one-way communication, the content providing device 100 according to the present invention performs forward error correction on the data extracted from the DMB signal through the error correction unit 114, and then TS data. Outputs The TS data is a standard for transmitting a video / audio stream by a DMB broadcasting system, and multiplexes audio / video streams of various programs in packet units using error correction codes. .

The information extracting unit 116 extracts meta information (eg, MPEG-7 information) from the TS data output by the reception signal processing unit 112.

The multiplexed DMB signal includes MPEG-7 meta information for information retrieval in addition to a broadcast stream such as MPEG-2 or MPEG-4. Since the MPEG-7 meta information includes various pieces of information such as advertisement information and broadcast performer information during the production of the broadcast, the information extracting unit 116 stores the MPEG-7 information from the TS data output by the reception signal processing unit 112. Can be extracted.

The recording unit 118 parses the MPEG-7 information extracted by the information extraction unit 116 to analyze the information, and records the DMB broadcast content including specific meta information among the analyzed information. More specifically, the recording unit 118 records the corresponding DMB broadcast content according to the recording rules stored in the recording rule storage unit 120 based on the MPEG-7 information extracted by the information extraction unit 116. Here, the recording rule storage unit 120 receives and stores a recording rule for searching for specific meta information from a user (content providing device operator).

For example, when a recording rule is set to record all of the baseball relay broadcast contents among the DMB broadcast contents, the recording unit 118 records all baseball relay programs broadcast through the DMB channel based on the aforementioned meta information. In addition, when a recording rule is set to record all broadcasts in which a specific person appears, the recording unit 118 is configured to record all the broadcast content that the specific person appears in among the broadcast contents broadcasted through the DMB channel based on the above-described meta information. Record the video.

That is, the recording unit 118 can selectively record the DMB broadcast content according to the recording rule. Accordingly, by automatically extracting and recording specific broadcast contents, the user may be able to watch a desired broadcast image after broadcasting, thereby improving user convenience.

The content converter 126 receives metadata related to the DMB broadcast content recorded through the recorder 118, converts the metadata into a salable content file, and stores the metadata in the content storage 124. In general, DMB broadcast content received through a DMB channel is not transmitted in a format for sale, and therefore, the broadcast content must be converted into a format that can be sold. That is, when the DMB broadcast content received through the DMB channel is recorded immediately, since there is no additional information that the buyer can refer to when purchasing the broadcast content, the additional information must be generated in the form of a graphical user interface (GUI).

To this end, the content conversion unit 126 requests the content provider 300 for metadata related to the DMB broadcast content recorded through the recording unit 118, and accordingly the broadcast content received from the content provider 300 The content is converted using the metadata, and the converted content is stored in the content storage unit 124. Here, the content provider 300 is a provider for providing contents and metadata according to the content providing apparatus 100 according to the present invention, and the content server for transmitting digital content and metadata to the content providing apparatus 100. 310, and a content DB 320 that stores various digital contents and corresponding metadata. The content server 210 transmits various multimedia contents to the content providing apparatus 100 online, and the content providing apparatus 100 receives the multimedia contents from the content server 210 and updates the contents.

The metadata received from the content provider 300 by the content converter 126 may include content, person information, playback time, file size, price, and category information of the recorded DMB broadcast content.

In addition, the content converter 126 may obtain additional information for selling content using the MPEG-7 information extracted by the information extractor 116.

In addition, the content converter 126 may include an image converter (not shown), a document converter (not shown), a video converter (not shown), and a compiler / linker for converting an application program running on a user terminal. Not shown).

The image conversion unit receives information such as an image compression format supported by the user terminal, a free storage space size of the user terminal, screen information of the user terminal, and the like, and optimizes the image stored in the content storage unit 124 by using the information. Convert to form

The document conversion unit receives a type of document supported by the user terminal, a free storage space size of the user terminal, screen information of the user terminal, and the like, and uses the document to optimize the document stored in the content storage unit 124 in a form optimized for the user terminal. To convert.

The video conversion unit receives a video compression format supported by the user terminal, a free storage space size of the user terminal, screen information of the user terminal, a main memory size of the user terminal, and CPU information, and uses the same to the content storage unit 124. The stored video is converted into a form optimized for the user terminal.

The compiler / linker receives the platform and library version information of the user terminal, the type of library loaded, the size of the mail memory of the user terminal, the CPU information, and the screen information of the user terminal. The operation of rebuilding the content stored in the unit 124 is performed.

The content storage unit 124 receives and stores the content file converted by the content conversion unit 126. For example, the content storage unit 320 may store a video, an image, an MP3 file, a document, and the like. The content stored in the content storage unit 124 may be an original content file or a content file converted into various types to be suitable for various user terminals.

The network communication unit 150 communicates with the content providing device 100 of the present invention connected to the advertisement server 210 of the advertisement provider 200 and the content server 310 of the content provider 300.

The billing server (not shown) performs billing through various existing methods such as cash, card, E-money, mobile phone payment as a part of billing for the content purchased by the user.

The advertisement information generation unit 132 generates advertisement information for the content file stored in the content storage unit 124.

The advertisement information generated by the advertisement information generation unit 132 is transmitted to the transmission signal processing unit 142 through the control unit 130, and the transmission signal processing unit 142 transmits the advertisement information received from the control unit 130 to the DMB channel. Converted into transport stream data corresponding to the DMB standard for broadcasting through

To this end, the advertisement information generator 132 includes a content file selector 10, a screen information extractor 20, and a metadata extractor 30.

The content file selection unit 10 selects one or more content files among the content files stored in the content storage unit 124 according to the set criteria. At this time, the content file selector 10 is generated by selecting popular contents (contents of a high frequency of selection by the user) among the content files stored in the content storage unit 124 or by selecting recently updated content files. Advertisement effect is maximized by advertisement information. That is, the receiver receiving the advertisement information may have a desire to purchase through the advertisement information.

The content file selecting unit 10 may receive information on the total content usage statistics through the control unit 130, and selectively select the content file using the information.

The screen information extractor 20 extracts advertisement screen information (eg, a screen shot) from the content file selected by the content file selector 10. The screen information extracting unit 20 determines the type of the content file selected through the content file selecting unit 10 to determine whether the screen for advertisement is extractable, and extracts the screen information for the advertisement from the corresponding content file when the screen for advertisement can be extracted. . In this case, the content file capable of extracting the advertisement screen from the content file may include MPEG4, AVI, JPEG, and the like. For example, when the content file is a video, the screen information extractor 20 extracts the screen for advertisement at predetermined time intervals. When a plurality of advertisement screens for the content file are extracted, the screen information extracting unit 20 requests a user selection from the user through the interaction unit 134, receives the user selection accordingly, and displays one advertisement screen corresponding to the content. Set as an advertisement screen for the file. The above-described advertisement screen is an image displayed to the user in order to acquire an approximate information on the content to be purchased when the user purchases the content, and may be stored in a general bitmap image format (eg, BMP, PNG, JPEG, etc.).

The metadata extractor 30 extracts metadata for each content file selected through the content file selector 10. Metadata extracted through the metadata extracting unit 30 may include a content name, a service type, a playback time, a resolution, a library required for playback, a plot, a distribution condition, a producer, a representative screen file name, a selling price, and the like.

Meanwhile, when the metadata extractor 30 cannot extract metadata from a specific content file stored in the content storage unit 124, the metadata extractor 30 may receive metadata about the corresponding content file from the content server 310.

Alternatively, the advertisement information generation unit 132 may request the user to input metadata necessary for generating advertisement information through the interaction unit 134 and receive the corresponding information from the user.

On the other hand, the information information generated by the advertisement information generation unit 132, as well as information on the content during the sale in the content providing device 100 according to the present invention, as well as the location information about the place where the content providing device 100 is installed Included. That is, the content providing device 100 according to the present invention transmits the location information on the place where the content providing device 100 is installed together with various information about the content for sale to the DMB terminals within a predetermined radius through the DMB channel. Therefore, the user can continuously receive information on the content that can be obtained from the adjacent content providing device through his or her DMB terminal, and if there is content to be purchased, the user can easily access the desired content providing device. Content can be provided.

In addition, when there is content that the user wants to purchase, since the user only needs to access the content providing device and purchase the desired content, there is no need to spend a lot of time searching for whether the desired content exists in the content providing device. .

In general, a mobile user may not recognize an installation location of a content providing device that is nearby or recognize popular content for sale on the content providing device. However, the present invention can solve the above problems.

The control unit 130 controls each unit to implement the present invention. More specifically, the controller 130 requests metadata from the content server 310 through the network communication unit 150 according to the metadata request from the content conversion unit 126. Then, the metadata transmitted from the content server 310 is received through the network communication unit 150 and transmitted to the content conversion unit 126.

In addition, the controller 120 accesses the content providing device 100 according to the present invention and stores customer management information such as information of a user terminal, content purchase history, and content of interest, which are downloaded content, and the contents total usage statistics (eg, , The frequency of selection of the content most selected by the user, a list of popular contents, etc.).

The transmission signal processor 142 receives the advertisement information generated by the advertisement information generator 132 from the controller 130 and transmits the received advertisement information through the terrestrial DMB channel (eg, MPEG). -2 TS) to transfer to the DMB transmitter 146.

The DMB transmitter 146 receives the transport stream including the advertisement information from the transmission signal processor 142 and broadcasts it to the DMB receiver terminals within a predetermined radius (see FIG. 3). In the present invention, the DMB transmitter 146 uses a small base station type device to allow a transmission signal to be reached only to DMB terminals within a certain radius, and receives a transmission signal from a content providing device in that area in another adjacent area. By making it possible, it is desirable to be installed to form multiple cells as a whole.

In addition, the DMB transmitter 146 preferably broadcasts advertisement information to DMB terminals using a terrestrial DMB channel. In the case of terrestrial DMB, the user can use it free of charge, thereby further maximizing the effect of the above-mentioned advertisement information.

Meanwhile, the content providing device 100 according to the present invention receives advertisement information (eg, product advertisement) from the advertisement provider 200 including the advertisement server 210 and the advertisement DB 220, and then transmits the DMB transmission unit 146. It can also be included in the transport stream transmitted through the transmission.

According to the above configuration, the operator operating the content providing apparatus according to the present invention can increase the number of content sales through an advertisement using a DMB channel, and separates such as a product advertisement from the transport stream data transmitted through the DMB channel. By inserting the advertising video of the advertising will be able to create a separate revenue source.

4 is a diagram illustrating an example in which a DMB terminal receiving advertisement information generated through the advertisement information generation unit 132 displays advertisement information through display means. FIG. 5 is an exemplary view showing an example of the latest movie introduction screen 3 shown in FIG. 4. 6 is an exemplary diagram illustrating an example of the location information screen 9 of the content providing device illustrated in FIG. 4.

As illustrated in FIG. 4, information about content being provided (sold) by the content providing device 100 and location information of the content providing device 100 is included. For example, the DMB terminal receiving the advertisement information may display the popular music video introduction screen (1), the latest movie introduction screen (3), the popular cartoon introduction screen (5), the product advertisement screen (7), and the content providing device through the display means. The location information screen 9 and the like are displayed to the user.

FIG. 7 is a flowchart illustrating a process of acquiring DMB broadcast content using a DMB signal received through a DMB channel by a digital content providing device (hereinafter, referred to as a content providing device) according to the present invention.

Referring to FIG. 7, the content providing apparatus 100 according to the present invention first receives a Digital Multimedia Broadcating (DMB) signal that is broadcast through a DMB channel (including satellite and terrestrial DMB channels) (S100).

Next, the content providing device 100 converts the DMB signal received in step S100 into a baseband orthogonal signal, selects a channel from the orthogonal signal, extracts original data corresponding to the selected channel (S110), and then forwards it. Error correction (FEC) outputs TS data. Since the DMB cannot be retransmitted when an error occurs because of the one-way communication, the content providing apparatus 100 according to the present invention outputs TS data after correcting data extracted from the DMB signal through forward error correction (S120). ).

When the TS data is output, meta information (eg, MPEG-7 information) is extracted from the TS data (S130). The multiplexed DMB signal includes MPEG-7 meta information for information retrieval as well as a broadcast stream such as MPEG-2 or MPEG-4. Since the MPEG-7 meta information includes various information such as advertisement information, broadcast performer information, and the like in the production of the broadcast, MPEG-7 information can be extracted from the TS data output in step S120.

Next, the content providing device 100 parses the MPEG-7 information extracted in step S130 to analyze the information, and records the DMB broadcast content including specific meta information among the analyzed information (S140). In more detail, the DMB broadcast content is recorded according to a recording rule set based on the extracted MPEG-7 information. Here, the recording rule is for retrieving specific meta information and is set by receiving an input from a user (content providing device operator).

For example, when a recording rule is set to record all of the baseball relay broadcasts among the DMB broadcast contents, the content providing device 100 records all baseball broadcast programs broadcast through the DMB channel based on the above-described meta information. In addition, when a recording rule is set to record all broadcasts in which a specific person appears, the content providing device 100 transmits all broadcasts in which the specific person appears in the broadcast content broadcasted through the DMB channel based on the above-described meta information. Record the content. That is, the content providing device 100 according to the present invention may selectively record DMB broadcasting content according to a recording rule. Therefore, by automatically extracting and recording specific broadcast contents, the user can selectively watch a desired broadcast image after the broadcast.

Next, the content providing device 100 requests metadata related to the recorded DMB broadcast content to the content provider in order to convert the DMB broadcast content recorded in operation S140 into a format capable of selling (S150), and transmits the meta from the content provider. Receive the data (S160). The content provider is a subject that provides metadata related to the recorded SMB broadcast content, and is configured separately from the content providing apparatus 100 according to the present invention.

In general, DMB broadcast content received through a DMB channel is not transmitted in a format for sale, and therefore, the broadcast content must be converted into a format that can be sold. In other words, if the DMB broadcasting content received through the DMB channel is directly recorded and stored, there is no additional information that a purchaser can refer to when purchasing the broadcast content, and therefore, it is not suitable as a content for sale. Therefore, additional information that can be referred to for sale should be generated in GUI form.

To this end, the content providing device 100 requests the content provider for metadata related to the DMB broadcast content recorded in step S140, and converts the content into a format that can be sold using the metadata for the broadcast content received from the content provider. (S170). Here, additional information for selling content may be obtained using the MPEG-7 information extracted through the step S130. The metadata acquired by the content providing apparatus 100 from the content provider or the MPEG-7 information may include content, person information, playback time, file size, price, category information, and the like of the recorded DMB broadcasting content.

Finally, the content providing device 100 stores the content converted through the step S170 (S180).

As described above, since the DMB broadcasting content transmitted through the DMB channel can be directly stored and sold, even when the supply and demand of the content is not available, the excellent content that was popular can be resold to smoothly supply and receive the content. In addition, by extracting the excellent terrestrial DMB broadcasting content from the content providing apparatus installed in each region and transmitting it to the central server, it is possible to sell the above-mentioned DMB broadcasting contents nationwide. In other words, according to the present invention, it is possible to secure a distribution channel for reselling excellent contents produced in a small group of local units nationwide.

8 is a flowchart illustrating a method of performing an advertisement using a DMB channel in detail according to the present invention.

Referring to FIG. 8, the content providing apparatus 100 according to the present invention generates advertisement information for the stored content file and transmits the advertisement information to the DMB terminals within a predetermined radius through the DMB channel.

In more detail, the content providing device 100 selects one or more content files among the content files stored in the content storage unit according to the set criteria (S200). At this time, when the content file is selected, the advertisement effect is maximized by the advertisement information generated by selecting popular contents or recently updated content files among the content files stored in the content storage unit. In this case, a specific content file may be selected by directly receiving a user selection.

Next, when the content to generate the advertisement information is selected in step S200, it is determined whether the screen for advertisement extraction is possible by identifying the type of the selected content file (S220).

As a result of the determination in step S220, when the screen for advertisement is extracted, screen information for advertisement (for example, a screen shot) is extracted from the corresponding content file (S230). In this case, the content file capable of extracting the advertisement screen from the content file may include MPEG4, AVI, JPEG, etc. When the content file is a video, a plurality of advertisement screens may be extracted at predetermined time intervals. When extracting a plurality of advertisement screens for the content file, the user is requested to select a user, and the user selection according to the input is set to set one advertisement screen as the advertisement screen for the corresponding content file. The advertisement screen is an image displayed to the user in order to acquire the general information on the content to be purchased at the time of purchase of the content, and may be stored in a general bitmap image format (eg, BMP, PNG, JPEG, etc.).

Next, the content providing device 100 extracts metadata for each of the selected content files through step S200 (S240). The metadata extracted at step S240 includes a content name, a service type, a playback time, a resolution, a library required for playback, a plot, a distribution condition, a producer, a representative screen file name, a selling price, and the like.

On the other hand, if it is not possible to extract the metadata from a specific content file stored in the content storage unit in step S240, the content provider is provided by requesting the metadata for the content file. Alternatively, the user may be requested to input metadata necessary for generating advertisement information, and the user may receive information accordingly.

Next, the content providing device 100 generates the advertisement information by using the screen information for the advertisement extracted in step S230 and the metadata extracted in step S240 (S250).

Meanwhile, the generated information information includes not only information about contents during sale in the content providing apparatus 100 according to the present invention, but also location information on a place where the content providing apparatus 100 is installed (S260).

A transport stream corresponding to a DMB standard (eg, MPEG-2 TS) is generated to transmit advertisement information generated through steps S250 and S260 through the DMB channel (S270). The generated transport stream is broadcasted to DMB terminals within a certain radius using the DMB channel. That is, the content providing device 100 according to the present invention is characterized by providing various information on the content for sale and location information on the place where the content providing device 100 is installed to DMB terminals within a predetermined radius.

As described above, the user (buyer) can continue to receive information on the content that can be obtained from the content providing device adjacent to the user through the DMB terminal, and if there is content to be purchased easily content providing device By accessing the desired content can be provided. In addition, when there is content that the user wants to purchase, the user can access the content providing device and purchase the desired content, so there is no need to spend a lot of time searching for whether the desired content exists in the content providing device. . In addition, in general, a mobile user may not recognize an installation location of a content providing device that is nearby or recognize popular content for sale on the content providing device. However, the present invention can solve the above problems.

As the operator of the content providing device, the number of content sales can be increased through an advertisement using a DMB channel, thereby maximizing content revenue. In addition, the content providing device 100 according to the present invention may include and transmit advertisement information (eg, product advertisement, etc.) received from the advertisement provider 200 in a transport stream transmitted through a DMB channel. As a result, the operator can create a separate revenue source by inserting a separate advertisement image such as a product advertisement into the transport stream data transmitted through the DMB channel.

Some steps of the invention may be embodied as computer readable code on a computer readable recording medium. Computer-readable recording media include any type of recording device having data stored thereon that can be read by a computer system. Examples of computer-readable recording media may include ROM, RAM, CD-ROM, CD-RW, magnetic tape, floppy disk, HDD, optical disk, magneto-optical storage, and the like. , Transmission over 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.

As described above, the best embodiment has been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a diagram illustrating in detail a digital content providing apparatus using a DMB channel according to the present invention.

FIG. 2 is a diagram for describing in detail the configuration of the advertisement information generation unit of FIG. 1.

3 is an exemplary diagram for explaining a digital content providing apparatus of the present invention for transmitting transport stream data including advertisement information and location information to DMB terminals within a certain radius.

4 is an exemplary view showing an example in which the DMB terminal receiving the advertisement information from the digital content providing apparatus according to the present invention displays the advertisement information received through the display means.

5 is an exemplary diagram illustrating an example of the latest movie introduction screen illustrated in FIG. 4.

6 is an exemplary diagram illustrating an example of a location information screen of the content providing device of FIG. 4.

7 is a flowchart illustrating a process of acquiring DMB broadcast content using a DMB signal received through a DMB channel in detail according to the present invention.

8 is a flowchart illustrating a method of performing an advertisement using a DMB channel in detail according to the present invention.

Claims (15)

A digital content providing device using a DMB channel, A content storage unit for storing a content file; An advertisement information generation unit generating advertisement information on a content file stored in the content storage unit; And And a DMB transmitter for broadcasting the generated advertisement information to DMB terminals within a predetermined radius using a DMB channel. The method according to claim 1, And the advertisement information includes location information of the digital content providing device. The method according to claim 1, The advertisement information generation unit, A content file selection unit for selecting one or more content files among the content files stored in the content storage unit according to a set criterion; And And a screen information extracting unit extracting screen information for advertisement from the selected content file. The method according to claim 3, The content file selection unit, And at least one content file of the content stored content files is selected based on a frequency of selection from a user. The method according to claim 3, And a metadata extracting unit for extracting one or more metadata among contents name, service type, playback time, resolution, library required for playback, plot, distribution condition, creator, representative screen file name, and selling price from the selected content file. Digital content providing device characterized in that. The method according to claim 3, The screen information extraction unit, And when the content file is a video file, extracting a plurality of representative screens, receiving a user selection, and setting one of the plurality of representative screens as a representative screen for the video file. The method according to claim 1, A DMB receiver for receiving a DMB signal; An information extraction unit for extracting meta information from the received DMB signal; And And a recording unit for recording DMB broadcasting content according to a recording rule set based on the meta information. The method of claim 7, And a content converter configured to receive metadata associated with the recorded DMB broadcast content, convert the metadata into a salable content file, and store the converted content file in the content storage unit. The method according to claim 8, The metadata, And at least one of contents, person information, playback time, file size, price, and category information of the recorded DMB broadcasting content. The method of claim 7, And a recording rule storage unit for receiving and storing a recording rule for searching the specific meta information from a user. The method according to claim 1, The DMB transmitter Digital content providing apparatus for broadcasting to DMB terminals within a certain radius using a terrestrial DMB channel. A method of providing digital content by a digital content providing device using a DMB channel, Generating advertisement information about the content file stored in the content storage unit; And And broadcasting the generated advertisement information to DMB terminals within a predetermined radius using a DMB channel. The method according to claim 12, And the advertisement information includes location information of the digital content providing device. The method according to claim 12, Generating advertisement information for the stored content file, Selecting at least one content file among the stored content files according to a set criterion, and extracting screen information for advertisement from the selected content file; And Extracting metadata from the selected content file. The method according to claim 12, Receiving a DMB signal; Extracting meta information from the DMB signal and recording DMB broadcast content according to a recording rule set based on the extracted meta information; And And receiving the metadata related to the recorded DMB broadcast content, converting the metadata into a salable content file and storing the metadata in the content storage unit.

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