KR100932490B1 - Broadcast receiver and video data processing method - Google Patents

Abstract

The present invention relates to a broadcast receiver and a video data processing method. According to the present invention, by using a limited viewing section set by a user or using a limited viewing section provided by a content provider, the user can skip a specific section to watch an image. When the user sets and stores the restricted viewing section, the user may skip and watch the section for which the user wants to restrict viewing.

DTV, IPTV

Description

Broadcast receiver and method for processing a video data}

The present invention relates to a broadcast receiver and a video data processing method, and more particularly, to a broadcast receiver for processing video data received through an Internet network and a method for processing the received video data.

Conventional broadcast receivers are serviced in such a manner that content produced by a broadcaster is transmitted through a radio wave transmission medium such as terrestrial, cable, or satellite broadcasting, and a user views the receiver through a receiver capable of receiving the respective delivery media. .

However, as digital-based digital broadcasting technology has been developed and commercialized in existing analog broadcasting, real-time broadcasting, contents on demand, games, and news using Internet networks connected to homes in addition to existing radio waves or wired cable media. It is now possible to provide a variety of content services to the user.

An example of providing a content service using the Internet network is IPTV (Internet Protocol TV). The IPTV refers to the transmission of various information service contents, video contents, and broadcasting contents through an internet network, and providing the same to a receiver of a user. The Internet network may be implemented on various types of networks such as an optical cable network, a coaxial cable network, a fiber to the home (FTTH), a telephone network, and a wireless network based on an Internet Protocol (IP).

In the case of the service using the Internet network as described above, unlike general terrestrial broadcasting, the interactivity may be added, and the user may watch the content service that he / she wants to see at a convenient time. In addition, the transmission content may be protected using conditional access, content protection technology, or the like, and information of a desired level may be viewed at a desired time using information such as parental lock.

However, when viewing content using existing rating information and the like, the rating information is divided into program units, and there is no means for limiting a specific section of broadcast or video content.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a broadcast receiver and a video data processing method capable of limiting a specific section of video content such as broadcast.

In accordance with another aspect of the present invention, there is provided a method of processing image data, the method comprising: receiving a limited viewing section setting command of an image; Setting a limited viewing interval of the video by designating a limited viewing start position and a restricted viewing end position of the video; Storing information on the set limited viewing section and viewing grade information on the image in which the limited viewing section is set; Receiving a rating of an image to be watched; And skipping and playing the limited viewing section corresponding to the viewing grade.

In another aspect, an image data processing method includes: authenticating a user and setting a viewing grade of the authenticated user; Receiving the video data by accessing an access address of a server storing the video data corresponding to the set viewing class; And displaying the received image data on a screen.

In another aspect, an image data processing method includes: authenticating a user; Setting a viewing grade of an image to be watched among images stored in the receiver according to the authenticated user; Receiving limited viewing section information corresponding to the viewing class by accessing a server receiving the image to be watched; And skipping the limited viewing section using the received limited viewing section information and displaying the stored image on the screen.

In another aspect, an image data processing method includes: authenticating a user; Setting a viewing grade of an image to be watched among images stored in the receiver according to the authenticated user; Accessing a server receiving the image to be watched and transmitting the viewing grade information and the set viewing grade information of the stored image; Receiving limited viewing section information corresponding to a viewing grade of an image stored in the receiver and limited viewing section information corresponding to the set viewing grade from the server; And comparing the limited viewing sections using the received limited viewing section information.

The broadcast receiver according to the present invention includes a network interface unit for transmitting and receiving data packets through an internet network; An IP manager for checking whether a destination of the received data packet is correct and transmitting the received data packet to a corresponding manager according to a protocol; An application / UI manager which controls to decode and display the image data among the received data packets, and sets the limited viewing period and the viewing grade of the image data by receiving the limited viewing start position and the limited viewing end position of the image data; ; A storage medium for storing the image data in which the limited viewing section and the viewing grade are set; And a display unit configured to display the decoded image data under the control of the application / UI manager, and to skip and display the limited viewing section corresponding to the viewing grade when the viewing grade of the image data to be viewed is input.

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In another aspect, a broadcast receiver includes a network interface unit for transmitting and receiving a data packet through an internet network; An IP manager for checking whether a destination of the received packet is correct and transmitting the received packet to a corresponding manager according to a protocol; A service information database unit for storing service discovery information; And an application / UI manager for accessing a server storing the image by using the viewing grade information of the image to be watched and the service discovery information and receiving a skipped image data packet of the limited viewing section.

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According to the broadcast receiver and the image data processing method of the present invention, there is an effect that the viewing can be locked for a specific section of the image contents such as broadcast. In addition, the user may set and store the viewing restriction section according to a grade, and the user may watch an image in which a desired section is limited according to the grade. In addition, when the viewing restriction section and the rating information provided by the video content provider are used, the section may be viewed according to the rating determined by the content provider.

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

Operation of the broadcast receiver and the image data processing method according to the present invention configured as described above will be described in detail with reference to the accompanying drawings.

An Internet Protocol TV (IPTV) system, which is an example of a system that can provide various contents using the Internet, can be largely divided into a server, a network, and a receiver.

The server of the IPTV is a server that performs various functions such as service discovery, service discovery, selection server, streaming server, content guide information server, customer information server, and payment information server. It can be configured as.

Among the servers, a streaming server transmits stored Moving Picture Experts Group (MPEG) 2 or MPEG4 encoded video data to a user through a network, and an information server related to service discovery and selection is broadcast, contents on demand (COD), The receiver provides connection information, playback information, and the like, to servers providing various content services such as a game.

The network system consists of an internet based network and gateways. In addition to general data transfer, the gateway may perform multicast group management and quality of service (QoS) management using protocols such as Internet Group Management Protocol (IGMP).

A receiver of an IPTV is a receiver capable of receiving data transmitted through an internet network and providing the same to a user. The receiver includes an IPTV settop, a homenet gateway, an IPTV embedded TV, and the like.

In the case of a hybrid IPTV system, various contents of the Internet may be provided as well as various existing broadcasting contents. That is, the user can provide various broadcasting contents such as terrestrial broadcasting, cable broadcasting, satellite broadcasting, personal broadcasting, various internet video contents, data contents other than video, and the like. The contents may be provided in real time or may be provided on demand.

1 is a diagram schematically showing an IPTV system according to an embodiment of the present invention.

In terms of providing a content service, the IPTV system may be divided into a content provider (CP), a service provider (SP), a network provider (NP), and a user.

The content provider produces and provides various contents. As shown in FIG. 1, the content provider includes a terrestrial broadcaster, a cable SO, or a MSO, a satellite broadcaster, and an internet broadcaster. (Internet broadcaster) and the like.

The service provider provides a service package of contents provided by the content provider. For example, the service provider of FIG. 1 packages a first terrestrial broadcast, a second terrestrial broadcast, a cable MSO, satellite broadcast, various Internet broadcasts, and provides the same to a user.

The service provider provides a service to the user side using a unicast or multicast scheme. The unicast method is a method of transmitting data 1: 1 between one sender and one receiver, and the multicast method is a method of transmitting data to a plurality of receivers of a specific group.

The network provider provides a network for providing the service to the user. The user may build a home network end user (HNED) to receive the service.

The IPTV system as described above may implement various functions that cannot be performed in a conventional broadcasting system by using bidirectional data transmission and reception between a sender and a receiver. As an example, as described below, the user may watch a specific section of the video content such as broadcasting by locking (hereinafter, section locking).

In relation to the limited viewing of the specific section, the user may select and set the limited viewing section (hereinafter referred to as the locking section) and the rating, or may select and set the locking section and the rating provided by the content provider.

For example, when the user selects and sets the locking section and the rating, the user may set the locking section and the rating for the video content currently received and viewed or stored in the receiver.

The user inputs a locking section input command while watching the currently received image. The user may set the start and end of the section for which the lock is desired. As the setting method, a limit start (hereinafter referred to as lock start) and a limit end (hereinafter referred to as lock end) command may be input using an external input means such as a remote controller, a touch screen, an external input button, and the like. The user may set a plurality of locking sections for one video content, and when all of the above settings are completed, the receiver stores the locked section information along with the locking level together with the video content.

Alternatively, the user may select and watch the stored video to set the locking section and the rating, or set the locking section and the rating using an image progress bar. In the setting of the locking section, as described above, the locking start and locking end commands may be input by using an external input means, and when the locking section setting is completed, the locking section information may be stored together with the locking level. When the locking section and the level are set using the progress bar, the user may set the locking section by determining the locking start position and the locking end position on the progress bar.

In this manner, the user may set several ratings for one image content, and the locking section may be set differently for each rating. That is, several grades having different locking sections may be set for one image content.

Alternatively, when the user sets the locking section, the user may set a grade for each locking section. For example, in one image, the grade of the first locking section may be set to a viewable grade of 15 years or older, and the grade of the second locking section may be set to a grade of 18 years or older. When a grade is set for each of the locking sections, the grades of the locking sections may be locked to watch the video. For example, when watching an image, only the locking section of the viewable grade of at least 18 years of the set locking sections may be locked and the remaining images may be viewed. In this case, the receiver stores the locking section information, the rating information for each locking section, and the video content, and displays the video content by using the rating information for each locking section when playing the video content.

2A is a diagram schematically illustrating a table including locking interval information according to an embodiment of the present invention. In FIG. 2A, 'Lock num' indicating the sequence number of the locked section, 'Start flag' indicating the locking start position, and 'End flag' information indicating the locking end position are included. The table may include unique ID information and locking grade information of the image content for identifying the image content.

In FIG. 2A, the information about the locking section is displayed based on the elapsed time from the start of the image. That is, the first locking interval is from '00: 13: 00 (hour: minute: second) 'to '00: 14: 02', and the second locking interval is from '00: 25: 15 'to '00: 26: 17' Until.

When setting and storing the locking section and the rating as described above, when the user plays the video content, the user can view the video content using the locking section and the rating information. For example, if a locking section and a rating exist in the content desired to be viewed among the video contents stored in the receiver, the user may select a desired rating to watch the video of the corresponding rating, or the authenticated user may view the image through the user authentication. You can also watch videos that can be rated. This may vary depending on implementation. That is, when recognizing a user through user authentication, the receiver may allow the recognized user to select a rating that can be viewed. Alternatively, the receiver may automatically set the preset highest level that can be viewed by the recognized user. For the user authentication, the receiver may database the user information, give an ID, a password, or use biometric information such as a fingerprint or an iris. Alternatively, the user may be authenticated by receiving a user's social security number and the like and requesting an authentication from an external certification authority through an Internet network.

In this case, the receiver skips and displays the locking section of the set grade on the screen. The user may select and view the locking class again during the viewing. In this case, the receiver compares the changed grade with the existing grade and skips the locking section corresponding to the changed grade to display an image. For example, when the user changes to a class having more locking sections than the existing class, the receiver may skip and display more locking sections according to the locking section information of the changed class. Alternatively, when the user changes to a class having a locking interval smaller than the existing grade, the receiver may skip and display the less locking interval according to the locking interval information of the changed grade.

In addition to the above-described embodiments, the user may set the locking section using words. That is, when a user sets a parental control word together with a command for setting a locking interval using a parental lock word, the receiver sets and stores a section including the word as a locking period in the image content. The receiver may set a section including the word as a locking section by comparing and filtering the words included in the audio data of the image content with the set restriction word. Alternatively, the section including the word may be set as a locking section by comparing and filtering text data such as caption data included in the image content and the restriction word. The section may be set by filtering both the audio data and the text data. The video content includes not only video content stored in a receiver, but also video content received from a server. In the case of video content received from a server, a locking period may be set by decoding the received data. According to an embodiment, a rating may be set according to a word, or a rating may be set according to the number of restrictions words included.

The receiver may set the locking interval in units of sentences, scenes, etc. including the restriction word. Alternatively, a predetermined period of time before and after the scene including the restriction word may be set as a locking period, and the time may be set by the user. Each example may vary depending on the implementation of the implementer.

2B is a diagram schematically illustrating a table including locking interval information according to a restriction word according to an embodiment of the present invention. The table is a table formed by setting a section including a lock word set by a user as a locking section. For example, in the case of the first locking section 1, the section including the limit word 'XXXX' is included.

When selecting and setting a locking section and a rating provided by a content provider, the user may view the video content to be received and watched or the video content stored in the receiver using the provided locking section and rating. That is, the user may select a desired grade from among the provided grades to watch an image of the corresponding grade, or may view an image of a grade that the authenticated user can view through user authentication. This may vary depending on implementations, and the details of user authentication are as described above.

When the user selects a viewing grade among the locking grades provided by the content provider or sets the viewing grade through user authentication and watches the video content, first, information about the locking grade should be received by the receiver. The information may be sent to the receiver along with information about service discovery and selection. For example, in the case of DVB-IP, the locking is performed on a broadcast discovery record on live media, a COD discovery record on content on demand (COD), a broadband content guide (BCG) discovery record on content guides, and the like. Rating information may be included and received. When the receiver receives the information on the locking grade, the receiver displays the grade information on the screen and allows the user to select a desired grade. The user can select the class by using an external input means such as a remote controller, a touch screen, and an external input button. Alternatively, the receiver may set a viewing grade through user authentication. As described above, the setting of the viewing grade according to the user authentication may allow the authenticated user to select a grade that can be viewed or automatically set to the highest grade that the authenticated user can watch.

When the grade is set by the user, the receiver accesses a server in which the image content is stored. The server transmits data to which the locking interval portion corresponding to the grade selected by the user or the grade that the authenticated user can watch is excluded to the receiver. In this case, two embodiments may be considered in connection with the transmission and reception of content data corresponding to the rating.

First, the server transmits one image content through one access address. The receiver transmits information about a rating selected by a user or a rating that an authenticated user can watch to a server where the video content is stored, and the server skips the locking section according to the rating received from the receiver to display the video content. Send to the receiver.

Secondly, the server storing the video content has a different access address for each class. The receiver may access the address in which the image content of the grade selected by the user or the grade that the authenticated user can watch is stored, and receive the image content in which the locking section corresponding to the grade is skipped. In this case, the class and the access address according to the class must be received in advance by the receiver.

As described above, when the server transmits the video content in which the locking interval of the corresponding grade is skipped, the receiver may display the received video content immediately. If the user changes the locking grade during viewing, the receiver transmits the changed locking grade information to the server to receive the image content corresponding to the changed grade or reconnect to an address where the image content of the changed locking grade is stored. That is, this may vary depending on the first and second embodiments described above.

For example, when the user changes to a class having more locking intervals than the existing grade, the receiver may transmit the changed grade information to a server and receive image content in which more locking intervals are skipped. It is also possible to directly access the address where the changed grade image content is stored. Alternatively, when the user changes to a class having a locking interval smaller than the existing grade, the receiver may transmit the changed grade information to a server and receive image content in which the less locking interval is skipped from the server. It is also possible to directly access the address where the video content of the.

In another embodiment with respect to transmission and reception of content data, if the server receives rating information selected by a user or rating information that an authenticated user can watch, the server does not have a locking table corresponding to the rating and a skipped portion. The video content may be transmitted to the receiver. In this case, the receiver may skip and play the locking section by using the image content data without the skipped portion and the locking information included in the locking table. When the user changes the locking grade during the viewing, the receiver may transmit the locking grade information to the server and receive the locking table information corresponding to the changed grade. In this case, since the image content without the skipped portion is received by the receiver, the receiver may skip the locking section without using the changed locking table information of the changed grade without having to compare with the existing grade.

When a user wants to watch an image stored in a receiver using a locking level provided by a content provider, locking interval information according to the locking level as shown in FIG. 2 is required. The receiver may access the content provider server that has received the stored image and receive the locking section information. Therefore, the receiver should also store content provider information such as the access address of the stored video. The receiver receives the locking interval information according to the class, skips the locking interval, and displays an image on the screen.

If the video content stored in the receiver is an image in which a locking section is skipped according to a specific grade, the receiver may also store the image content data, grade information of the stored data, and content provider information such as a content provider access address. Should be If the user wants to watch an image having a different grade from that of the stored image, the receiver connects to the content provider server and displays the grade selected by the user or the grade information for the authenticated user and the grade information of the stored image. Transmitting and receiving locking interval information corresponding to each class. The broadcast receiver compares the locking section information of the stored video content with the locking section information of a rating selected by the user or a rating that can be viewed by an authenticated user. As a result of the comparison, when there is a previously unreceived section, the receiver requests and receives image data of the unreceived section from the server. As a result of the comparison, when there is a section to be skipped further among the stored image content data, the receiver may skip and display the section to be skipped further. Accordingly, the user may watch an image having a locking section of the grade selected by the user.

In each of the above embodiments, the receiver may request a password from the user. For example, when setting a rating or performing user authentication, the receiver may request a password. The password is set in advance by the user.

3A is a diagram schematically illustrating a menu system as an embodiment according to the present invention. The user inputs a command to use a lock section for video content to be viewed by using an external input means such as a remote controller, a touch screen, and an external input button. In this case, when the command is input, the receiver may request a password. When the command is input, the receiver may display a rating that can be viewed by an authenticated user through user authentication, and may select one of the ratings, and according to a setting, the highest grade image that can be viewed by the authenticated user. You can also display directly on the screen. Information on user authentication has been described above.

Hereinafter, for convenience of description, it will be described on the assumption that the user selects a viewing rating. The viewing grade selection may or may not go through a user authentication procedure. This may vary depending on implementation.

When the command is input, the broadcast receiver may display three menus as shown in FIG. 3A. For example, when the locking level is set, a menu for releasing the locking level setting (Lock OFF), a menu for selecting and viewing one of the locking levels provided by a content provider, and a user-set locking level You can select (customize) one of them to display the menu you are watching.

When the provider designation or the user designation menu is selected, a locking level may be selected according to the menu. For example, in the case of FIG. 3A, when selecting a menu according to a provider designation, a locking grade of a viewing grade under 15 years and a viewing grade under 19 may be selected.

FIG. 3B is a diagram schematically illustrating a screen for watching video content of a set grade according to an embodiment of the present invention. 300 denotes a video content selection screen, 310 a locking level selection screen, 320 a receiver, and 330 a video content playback screen.

The user may select an image to watch using a program (or content) guide screen. The image content includes an image to be received from the server and the image content stored in the receiver.

When the selection command is input from the user and the locking setting command is input, the receiver displays a menu for selecting the use of the user-set level or the provider-provided level. A menu for setting the locking level is displayed on the screen. The user may set a locking level through the screen such as 310.

In the following description, it is assumed that one of the classes provided by the content provider is selected for convenience of description. When the class is selected as described above, the receiver transmits the grade information to a server that stores the image content to be watched, and the server transmits the locking table information of the corresponding grade to the receiver along with the image content. Alternatively, the server may transmit the image content in which the locking section of the corresponding class is skipped. This may vary depending on the implementation as described above.

The receiver skips the locking section and displays it on the screen by using the received locking table information, or receives and displays the image content on which the locking section is skipped. When the user changes the locking grade during viewing, the receiver transmits the changed grade information to the server to receive the locking table corresponding to the changed grade, or to receive the image content corresponding to the changed grade.

4 is a diagram schematically showing a configuration of a broadcast receiver according to an embodiment of the present invention. In the receiver of FIG. 4, a separate tuner may be provided to receive terrestrial broadcast, cable broadcast, satellite broadcast, and the like. However, in the present invention, for the convenience of description, a description will be mainly given of a part for receiving and processing content transmitted using an internet network.

The receiver includes a network interface unit 402, an IP manager 404, an application / UI manager 406, a CM unit 408, a service information decoder 410, a service information database unit 412, and a service discovery manager 414. ), Service control manager 416, CAS / DRM unit 418, service delivery manager 420, demultiplexer 422, audio / video decoder 424, display unit 426, storage unit 428, system The manager 430, the storage medium 432, and the storage medium controller 434 are included.

The network interface unit 402 receives the packets received from the network and transmits the packets from the receiver to the network. The IP manager 404 is involved in packet forwarding from the source to the destination for the packets received at the receiver and the packets transmitted at the receiver. The received packet is classified to correspond to an appropriate protocol.

The application / UI manager 406 provides a graphical user interface (GUI) for a user by using an on-screen display (OSD) and the like, and receives a key input from a user to perform a receiver operation according to the input. . For example, upon receiving a key input related to channel selection from a user, the key input signal is transmitted to the CM unit 408.

The CM (Channel Manager) unit 408 creates a channel map. In addition, the channel is selected using the channel map according to the key input received from the application / UI manager 406, and the service discovery manager 414 and the service control manager 416 are controlled. The CM unit 408 receives the service information of the channel from the service information decoder 410 and sets the audio / video PID (packet identifier) of the selected channel to the demultiplexer 422.

The service information decoder 410 decodes service information such as program specific information (PSI). That is, the demultiplexer 422 receives and decodes the demultiplexed PSI section, PSIP (Program and Service Information Protocol) section, or DVB-SI (Service Information) section.

The service information decoder 410 decodes the received sections to create a database of service information, and stores the database of the service information in the service information database unit 412. The database unit 412 may also store data regarding service discovery and selection.

The service discovery manager 414 receives and provides information necessary for selecting a service provider such as a content provider. Upon receiving a signal regarding channel selection from the application / UI manager 406, the service discovery manager 414 uses the information to find a service.

The service control manager 416 is in charge of selecting and controlling a service. For example, if a user selects a Live Broadcasting service such as a conventional broadcasting method, IGMP or Real-Time Streaming Protocol (RTSP) is used. If a user selects a service such as VOD (Video On Demand), RTSP is selected. Use the service to perform selection and control. The RTSP protocol may provide a trick mode for real time streaming. The protocol is an embodiment, and other protocols may be used depending on implementation.

The packet regarding the service received through the network interface unit 402 and the IP manager 404 is transmitted to the CAS / DRM unit 418. The CAS / DRM unit 418 is responsible for conditional access system (CAS) and digital rights management (DRM).

The service delivery manager 420 is in charge of controlling received service data. For example, when controlling real-time streaming data, the RTP / RTCP (Rela-Time Transport Protocol / RTP Control Protocol) may be used. When transmitting the real-time streaming data using the RTP, the service delivery manager 420 parses the received data packet according to the RTP and transmits the received data packet to the demultiplexer 422. In addition, the network reception information is fed back to the server providing the service using RTCP.

The demultiplexer 422 demultiplexes the received packet into audio, video, PSI (Program Specific Information) data, and the like, and transmits the demultiplexer 422 to the video / audio decoder 424 and the service information decoder 410, respectively.

The video / audio decoder 424 decodes the video data and the audio data received at the demultiplexer 422. The video data decoded by the video / audio decoder 424 is provided to the user through the display unit 426, and the decoded audio data is provided to the user through a speaker (not shown).

The storage unit 428 stores setup data and the like for the system. Non-volatile memory (NVRAM) or flash memory may be used as the storage. The system manager 430 controls the overall operation of the receiver system through a power source.

The storage medium controller 434 controls to store the video / audio data in the storage medium 432 or to read and play the data stored in the storage medium 432. The storage medium 432 receives and stores video / audio data from the video / audio decoder 424 under the control of the storage medium controller 434.

When the user selects and sets the locking interval and the rating, the application / UI manager 406 displays a screen for setting the user locking interval, the rating, etc. according to the user's command. The user may set a locking section of the video content currently viewed or the video content stored in the storage medium 434 through the setting screen.

When the user sets the locking section and the rating and finishes the setting, the receiver stores the image data, the locking section and the rating information in the storage medium 432. Therefore, when the user wants to watch the video content in which the locking section and the grade are set, the user can select a locking class of the image stored in the storage medium 432 or view an image in which the locking section of the corresponding class is skipped through user authentication. Can be.

When selecting a locking level provided by a content provider or receiving and viewing video content through user authentication, the information about the locking level of the video content may be received by the receiver together with information about service discovery and selection. The information may be received via the network interface unit 402, the IP manager 404, and the service discovery manager 406, and may be stored in the service information database unit 412. The application / UI manager 406 may control to display the locking grade information on the image content on the screen according to a user request.

If a user selects a rating to input a viewing command or if the rating is determined through user authentication, the receiver accesses the corresponding address using rating information on the video content and address information for receiving the video content data. That is, the application / UI manager 406 accesses the corresponding address using the information stored in the service information database unit 412. In the case of an embodiment having a different access address according to a class, an access address of a corresponding class is connected, and in an embodiment in which a locking interval of each class is provided from one access address, the access address is determined to the determined access address.

When the viewer wants to watch the video content stored in the receiver using the locking class provided by the content provider, the receiver accesses the content provider server that has received the stored video content and receives the locking interval information on the selected class. . In this case, the application / UI manager 406 accesses the server using the access address information stored in the service information database unit 412. In addition, the broadcast receiver displays image content data stored in the storage medium 432 on the screen by using the locking period information corresponding to the selected class under the control of the application / UI manager 406. A hard disk drive (HDD) or the like capable of storing a large amount of data may be used as the storage medium 432.

If the video content stored in the receiver is the video content in which the locking section is skipped according to a specific level, the application / UI manager 406 accesses the content provider server and determines the rating information selected by the user or the user authentication. Grade information and grade information of the stored video content are transmitted, and locking interval information corresponding to each grade is received. The application / UI manager 406 compares the locking section information of the video content stored in the storage medium 432 with the locking section information of the class determined according to the user's selected rating information or user authentication, and is not previously received. The video content data of the section may be received from the content server. Alternatively, if there is a section to be skipped among the image contents stored in the receiver, the section is skipped and displayed on the screen.

5 is a flowchart schematically illustrating a signal processing process according to an embodiment of the present invention. 5 illustrates a flow and sequence of signals between a service server, an IPTV service provider server, an entry point of an IPTV portal, and a receiver in which content data is stored.

The receiver connects to an entry point of an IPTV portal (or a system operator (SO)) (S500). The IPTV portal may check subscription information of the connected receiver. That is, the subscriber information may be checked to determine whether the receiver is provided with a service associated with the IPTV portal. The entry point refers to a kind of connection location.

The entry point of the IPTV portal transmits a service provider discovery record including various information about a network provider or a service provider to the receiver (S510). The receiver stores various kinds of information included in the received service provider discovery record (S520). The information may include service provider identification information, service provider access information, and the like.

The receiver accesses the server of the service provider using the access information of the service provider among the information (S530). The server of the service provider transmits a service discovery record including various information about the service to the receiver (S540). The receiver receives the service discovery record and stores various information stored in the record (S550). The information may include content provider identification information, content source identification information, content content identification information, property information of the content data, access information of a service, and the like. In addition, the information on the locking level of the video content provided by the content provider described above may be included. The receiver uses the above information to create a channel map.

The receiver connects to the service server in which the corresponding service is stored using the channel map according to the user's request (S560), and the service server transmits a data stream of video content stored in the connected receiver to provide a streaming service. Start (S570). When the content provider transmits data using a different access address for each grade, each address transmits video content of the corresponding grade. When the content provider transmits the video content from one access address, the content provider receives the rating information, skips the locking section corresponding to the rating, and transmits the video content. The receiver displays the data received from the service server on the screen (S580). If the locking interval information on the locking class is requested from the receiver, the service server may transmit the locking interval information to the receiver.

6 is a flowchart illustrating a data processing process when a user sets a locking interval and a grade according to an embodiment of the present invention. The process of FIG. 6 will be described based on the process in the receiver.

When the user inputs a command for setting the locking section (or the limit section) (S600), the receiver displays the setting menu on the screen. Through the menu screen, the user may set a locking section of the video content currently received and watched or stored in the receiver.

When the setting of the locking section and the locking level (or limit level) is finished, the receiver stores the set information together with the image content (S610).

Thereafter, when the user wants to watch the stored video content, the user may select a locking level set by the user for the stored video content (S620). When the user selects a locking level set for the video content, the receiver skips the locking section corresponding to the set level and reproduces it on the screen (S630).

FIG. 7 is a flowchart illustrating a data processing process when using a provided locking section and class according to an embodiment of the present invention. The process of FIG. 7 will be described based on the process of the receiver.

When using the locking level provided by the content provider, the user inputs a usage command of the provided locking level (S700). If the command is input, the receiver may perform user authentication (S710). The user authentication may be performed through user ID or user social security number authentication. After the user authentication, the locking level that can be viewed by the authenticated user can be set. The setting method is as described above. The receiver may allow a user to select one of the provided locking classes, which may vary depending on implementation.

When a playback command is input to the video content stored in the broadcast receiver (S720), the receiver accesses the content server that has received the content and receives the locking interval information for the set or selected locking level (S730). The broadcast receiver displays the video content stored in the broadcast receiver on the screen by using the locking section information (S740).

When the user inputs a playback command for the video content to be received and watched (S720), the receiver accesses a content provider server in which the video content is stored and receives the video data corresponding to the set or selected grade. (S750). In this case, the receiver may receive the image data and display it directly on the screen (S760).

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

1 is a diagram schematically showing an IPTV system according to an embodiment of the present invention.

2A is a diagram schematically illustrating a table including locking interval information according to an embodiment of the present invention.

2B is a diagram schematically illustrating a table including locking interval information according to a restriction word according to an embodiment of the present invention.

3A is a diagram schematically illustrating a menu system as an embodiment according to the present invention.

FIG. 3B is a diagram schematically illustrating a screen for watching image content having a set grade according to an embodiment of the present invention. FIG.

4 is a diagram schematically illustrating a configuration of a broadcast receiver according to an embodiment of the present invention.

5 is a flowchart schematically illustrating a signal processing process according to an embodiment of the present invention.

6 is a flowchart illustrating a data processing process when a user sets a locking interval and a rating according to an embodiment of the present invention.

7 is a flowchart illustrating a data processing process when using a provided locking section and class according to an embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

402: network interface unit 404: IP manager

406: Application & UI Manager 408: CM Department

410: service information decoder 412: service information database unit

414 service discovery manager 416 service control manager

418 CAS / DRM 420 Service Delivery Manager

422 demultiplexer 424 audio / video decoder

426: display unit 428: storage unit

430: system manager 432: storage medium control unit

434: storage medium

Claims (23)

Receiving a limited viewing section setting command of an image; Setting a limited viewing interval of the video by designating a limited viewing start position and a restricted viewing end position of the video; Storing information on the set limited viewing section and viewing grade information on the image in which the limited viewing section is set; Receiving a rating of an image to be watched; And And skipping and playing the limited viewing section corresponding to the viewing class. The method of claim 1, The video, An image data processing method, which is image content received through an internet network or image content stored in a receiver. The method of claim 1, Setting the limited viewing section, An image data processing method for receiving a restriction start position and a restriction end position by using a progress bar of an image, and setting a restriction viewing section. The method of claim 1, Setting the limited viewing section, The image data processing method of setting and storing a viewing grade of a corresponding section for each of the set limited viewing sections. The method of claim 1, Setting the limited viewing section, A video data processing method for setting a section including a parental control word as a restricted viewing segment. delete The method of claim 1, Receiving user information; Authenticating a user using the information, and setting a viewing grade corresponding to the authenticated user; And And skipping and playing the limited viewing section corresponding to the viewing class. Authenticating a user and setting a viewing grade of the authenticated user; Receiving the video data by accessing an access address of a server storing the video data corresponding to the set viewing class; And And displaying the received image data on a screen. delete The method of claim 8, Receiving the image data, And transmitting the viewing rating information to a server, and receiving, from the server, image data in which a limited viewing section corresponding to the viewing rating is skipped. In the video data processing method, Authenticating a user; Setting a viewing grade of an image to be watched among images stored in the receiver according to the authenticated user; Receiving limited viewing section information corresponding to the viewing grade by accessing a server that receives the image to be watched; And And skipping the limited viewing section by using the received limited viewing section information and displaying the stored image on the screen. In the video data processing method, Authenticating a user; Setting a viewing grade of an image to be watched among images stored in the receiver according to the authenticated user; Accessing a server receiving the image to be watched and transmitting the viewing grade information of the stored image and the set viewing grade information to the server; Receiving limited viewing section information corresponding to a viewing grade of an image stored in the receiver and limited viewing section information corresponding to the set viewing grade from the server; And And comparing the limited viewing sections by using the received limited viewing section information. The method of claim 12, As a result of comparing the restricted viewing section, image data processing including receiving image data of an unreceived section among the stored images and skipping the restricted viewing section to be skipped according to the set viewing grade is displayed on the screen. Way. A network interface unit for transmitting and receiving data packets through an Internet network; An IP manager for checking whether a destination of the received data packet is correct and transmitting the received data packet to a corresponding manager according to a protocol; An application / UI manager which controls to decode and display the image data among the received data packets, and sets the limited viewing period and the viewing grade of the image data by receiving the limited viewing start position and the limited viewing end position of the image data; A storage medium for storing the image data in which the limited viewing section and the viewing grade are set; And And a display unit configured to display the decoded image data under control of the application / UI manager, and to skip and display the limited viewing section corresponding to the viewing grade when the viewing grade of the image data to be watched is input. receiving set. delete delete delete A network interface unit for transmitting and receiving data packets through an Internet network; An IP manager for checking whether a destination of the received packet is correct and transmitting the received packet to a corresponding manager according to a protocol; A service information database unit for storing service discovery information; And A broadcast receiver including an application / UI manager for accessing a server storing the video and receiving the skipped video data packet by using the viewing grade information of the video to be watched and the service discovery information; . The method of claim 18, The application / UI manager, A broadcast receiver for controlling to receive a video data packet by accessing a connection address where video data corresponding to a rating is stored. The method of claim 18, The application / UI manager, And transmitting the viewing rating information to a server, and receiving image data from which the limited viewing section corresponding to the viewing rating is skipped from the server. delete delete delete

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