KR20100054293A - Method for processing broadcast data and digital broadcast receiver - Google Patents

Abstract

PURPOSE: A broadcast data processing method which efficiently offers a desired broadcast content is provided to supply preferred broadcasting contents to a preferred time. CONSTITUTION: An IPTV(Internet Protocol Television) receiver receives the private channel request(S303). A data server manages an individual channel program list(S305). A contents server offers the requested broadcasting contents requested to the private channel(S309). The IPTV receiver receives the broadcast content through the private channel(S311). The IPTV receiver receives the change request about the private channel preference information from the user(S313). The IPTV receiver amends the individual channel preference information(S315).

Description

Method for processing broadcast data and digital broadcast receiver

The present invention relates to a broadcast data processing method and a digital broadcast receiver, and more particularly, to a broadcast data processing method and a digital broadcast receiver for receiving broadcast data through the Internet and providing it to a viewer.

Conventional broadcast receivers have been serviced in such a way 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 transmits various information services, video contents, and broadcasts through an internet network and provides them to the receiver of the 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 a content service that he / she wants to see at a convenient time.

An object of the present invention is to provide a broadcast data processing method and a digital broadcast receiver for efficiently providing a broadcast content desired by a user.

Another object of the present invention is to provide a broadcast data processing method and a digital broadcast receiver capable of efficiently processing request information for broadcast content provided through the Internet.

In order to achieve the above technical problem, the broadcast data processing method according to the present invention comprises the steps of transmitting personal channel preference information which is information for selecting broadcast content provided by a private channel; Receiving the selected broadcast content on the personal channel based on the transmitted personal channel preference information; And displaying the received broadcast content. The personal channel preference information may include at least one of content preference information, keyword preference information, and user preference information. The content preference information, keyword preference information, and user preference information may each include weight information for comparing mutual priorities.

Preferably, the content preference information may include at least one of program preference information and service preference information, and the keyword preference information may be keyword information for searching for content preferred by a viewer. In addition, the user preference information may include at least one of a viewer's name information, age information, gender information, marriage information, child information, occupation information and interest field information.

Preferably, in the transmitting, the broadcast data processing method of transmitting the personal channel preference information in a metadata structure.

Preferably, the broadcast data processing method may further include calculating the personal channel preference information.

Preferably, in the calculating step, the personal channel preference information may be calculated from the history information on the downloaded program. In the calculating step, the personal channel preference information may be calculated from information input by a user. In the calculating step, the personal channel preference information may be calculated from customer information.

According to another aspect of the present invention, there is provided a digital broadcast receiver comprising: a user interface manager for calculating personal channel preference information, which is information for selecting broadcast content provided by a private channel; A network interface unit configured to transmit a packet including the calculated personal channel preference information and to receive broadcast content selected based on the transmitted personal channel preference information through the private channel; And a display unit displaying the received broadcast content. The personal channel preference information may be transmitted in a metadata structure. The personal channel preference information may include at least one of content preference information, keyword preference information, and user preference information. The content preference information, keyword preference information, and user preference information may each include weight information for comparing mutual priorities.

Preferably, the content preference information may include at least one of program preference information and service preference information, and the keyword preference information may be keyword information for searching for content preferred by a viewer. The user preference information may include at least one of name information, age information, gender information, marriage information, child information, job information, and interest field information of the viewer.

Preferably, the user interface manager may calculate the personal channel preference information from the history information on the downloaded program. The user interface manager may calculate the personal channel preference information from information input by a user.

According to the broadcast data processing method and digital broadcast receiver according to the present invention, it is possible to efficiently process the request information for the broadcast content provided through the Internet to provide the broadcast content preferred by the viewer at a preferred time and place.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described. At this time, the configuration and operation of the present invention shown in the drawings and described by it will be described as at least one embodiment, by which the technical spirit of the present invention and its core configuration and operation is not limited.

The terms used in the present invention have been selected as general terms widely used as possible in consideration of the functions in the present invention, but may vary according to the intention or custom of a person skilled in the art or the emergence of a new technology. In addition, in certain cases, there is also a term arbitrarily selected by the applicant, in which case the meaning will be described in detail in the description of the invention. Therefore, it is intended that the terms used in the present invention should be defined based on the meanings of the terms and the general contents of the present invention rather than the names of the simple terms.

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

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

The servers of the IPTV are servers that perform various functions such as service discovery and selection server, streaming server, contents guide information server, customer information server, and payment information server. It can be configured as.

Among the servers, the streaming server transmits video data encoded in the stored Moving Picture Experts Group (MPEG) 2, MPEG4, etc. to the user through a network. As a protocol for the transmission, a Real-Time Transport Protocol (RTP), a RTP Control Protocol (RTP), or the like may be used.

In case of using Real-Time Streaming Protocol (RTSP), video stream playback can be controlled to some extent through a function called network trick play such as pause, replay, and stop. . The protocols are one example and other real time transmission protocols may be used depending on the implementation.

The content guide information server is a server that provides information on the various contents provided. The content guide information is information corresponding to electronic program guide (EPG) information and includes various information about content. The content guide information server stores content guide information data and provides the stored data to the receiver.

The information server related to service discovery and selection among the servers provides the receiver with connection information and playback information for servers providing various content services such as broadcasting, contents on demand (COD), and games.

The network system consists of an internet based network and gateways. The Internet-based network may use various types of networks such as an optical cable network, a coaxial cable network, a fiber to the home (FTTH), a telephone network, a wireless network, and the like based on IP. 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, it is possible to provide various contents of the Internet 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 on demand upon request.

1 is a view showing a preferred embodiment of the IPTV system according to the present invention.

Referring to FIG. 1, 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. have.

Content providers produce and provide various contents. As shown in FIG. 1, the content provider includes a terrestrial broadcaster, a cable broadcaster (System Operator or 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.

2A and 2B are diagrams schematically showing multicast and unicast schemes, respectively.

 2A and 2B, the unicast method is a method of transmitting data 1: 1 between one sender and one receiver. For example, in the unicast scheme, when a receiver requests data from a server, the server transmits data to the receiver according to the request. The private channel according to the present invention may be provided from the content provider to the IPTV receiver in a unicast manner.

Multicasting is a method of transmitting data to a plurality of recipients of a specific group. For example, the server can send data to multiple pre-registered receivers at once. The Internet Group Management Protocol (IGMP) protocol may be used for the multicast registration.

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.

Conditional access, content protection, or the like may be used as a means for protecting content transmitted in the IPTV system. As an example for the above-mentioned restriction reception or content protection, a method such as a cable card or a downloadable conditional access system (DCAS) may be used.

3 is a flowchart illustrating a preferred embodiment of a method for configuring a private channel according to the present invention.

Referring to FIG. 3, the user selects a private channel (S301). The private channel is a channel that provides customized content to each customer, and provides selected broadcast content based on the information requested by analyzing the content requested by the customer or the preferences of the customer. The broadcast content may be a broadcast program or a service. For example, the private channel may provide a specific broadcast program such as King Sejong the Great, Beethoven virus, or may provide other channel services that are broadcast in real time. In addition, a user can select a private channel by clicking a menu button on a remote controller, a menu button on a broadcast receiver, a menu button on an OSD, and the like.

Since the private channel provides contents to each customer in a customized manner, when the user does not watch the private channel, the content server 330 does not need to provide broadcast content through the private channel. Therefore, when the user does not watch the private channel, the network bandwidth can be prevented by not allocating the network bandwidth to the private channel.

The IPTV receiver 310 receives a private channel request and transmits personal channel preference information (S303). The personal channel preference information is information for selecting broadcast content provided by a private channel, and may include at least one of content preference information, keyword preference information, and user preference information. Here, the content preference information, the keyword preference information, and the user preference information may each include weight information for comparing mutual priorities. That is, when selecting the broadcast content provided by the private channel, the degree of content preference information, keyword preference information, and user preference information may be differently reflected according to weight information. In addition, the IPTV receiver 310 may transmit personal channel preference information in a metadata structure.

The metadata server 320 receives personal channel preference information and manages a personal channel program list based on the received personal channel preference information (S305). The metadata server 320 selects content to be provided in the private channel based on the personal channel preference information to generate and modify a personal channel program list. Here, the metadata server 320 may select content to be provided in the private channel by varying the degree of reflection according to each weight information included in the content preference information, the keyword preference information, and the user preference information.

The metadata server 320 transmits a broadcast request for broadcast content in a personal channel program list (S307).

The content server 330 receives a broadcast request for broadcast content and provides the requested broadcast content on a private channel (S309). Here, the content server 330 may provide a specific broadcast program in a private channel according to a broadcast request for broadcast content, and may provide another channel service that is broadcast in real time in a private channel.

The IPTV receiver 310 receives the broadcast content provided by the content server 330 on a private channel and displays the received broadcast content (S311).

The IPTV receiver 310 receives a change request for personal channel preference information from the user (S313). The customer may request to change the personal channel preference information if there is a program that he does not want or wants to modify the program preference information while watching the broadcast content received through the private channel.

The IPTV receiver 310 modifies the personal channel preference information according to the input change request (S315). The IPTV receiver 310 transmits the modified personal channel preference information by performing step S303. The metadata server 320 receives the modified personal channel preference information, updates the personal channel program list, and requests the content server 330 to broadcast the broadcast content in the updated personal channel program list.

4 is a diagram illustrating a preferred embodiment of information for configuring personal channel preference information according to the present invention.

Referring to FIG. 4, personal channel preference information may be calculated from individual broadcasting channel programming information. The broadcasting channel programming information for each individual may include at least one of program download information, keywords and preference information, and customer information.

The program download information is history information on the downloaded program, and may include at least one of downloaded time information, downloaded program name information, downloaded program genre information, and program viewing place information. For example, "2008/7/1" may be the downloaded time information, "3 episodes" as the downloaded program name information, and "drama" as the downloaded program genre information. Here, "restaurant" corresponds to a series, and "three episodes" means an episode number of the series.

The program download information may include at least one of viewing channel information, viewing channel period information, and viewing channel place information. The viewing channel information includes information identifying a channel watched by the user, the viewing channel period information indicates a period during which the user watched the channel, and the viewing channel place information indicates a place where the user watched the channel. For example, "MBC" as the viewing channel information, "21-23" as the viewing channel period information, and "living room" as the viewing channel place information may correspond.

Content preference information among personal channel preference information may be calculated from program download information. In the process of calculating the content preference information from the program download information, priority may be given to each information included in the program download information and the content preference information may be calculated based on the priority information. In order to prioritize, the priority of each program included in the program download information can be given and managed according to the program name or genre which has been downloaded the most, and how recently it has been downloaded. have.

The content preference information may include at least one of program preference information and service preference information. The program preference information includes at least one of program identification information, series information, program preference time information, and program preference place information. The program identification information is information for distinguishing the program from the user's favorite program, and the program favorite time information indicates the time when the user wants to watch the favorite program, and the program favorite place information indicates the user's favorite program. Instruct the place you want to watch. The program preference place information may be designated as "own room", "living room", "child room", "home room", or the like, and may be designated as "own house" and "friend house".

The program identification information and the program preference time information may be calculated from the downloaded time information included in the program name information and the program download information, respectively, and the program preference place information may be calculated from the viewing place information. When the downloaded program is a series, the series information may be calculated from the episode number of the downloaded program and information indicating which series the downloaded program belongs to. That is, the series information may include at least one of information indicating an episode number and information indicating a series to which the corresponding program belongs.

 The service preference information may include at least one of service identification information, service preference time information, and service preference place information. The service identification information is information for distinguishing the service from the user's preferred service and other services, the service preference time information indicates the time when the user wants to watch the service, and the service preferred place information indicates the user's desire to watch the service. Instruct the place. The service preference information may be calculated from the program download information. That is, the service identification information, the service preference time information, and the service preference place information may be calculated from the viewing channel information, the viewing channel period information, and the viewing channel place information included in the program download information, respectively.

The program preference information and the service preference information each include priority information indicating mutual priority between the program indicated by each program identification information included in the program preference information and the service indicated by each service identification information included in the service preference information. Can be. By including priority information, you can better understand your tastes and avoid conflicts.

Keywords and preference information include keywords for searching for content. The keyword and preference information may be directly input by the user, or may include a keyword identified through program download information. Simply inputting a keyword or a favorite program genre input by the user may not be enough to grasp the broadcasting content preference, and if the user does not input frequently, this information may be less useful. Accordingly, if the result of analyzing the program download information is added to the keyword and the preference information and managed, it is possible to maintain more reliable information in association with the user preference. Keywords and preferences include keywords such as "Classic Beethoven", "24 Hours and Four Seasons", and "Lord of the Rings", "American Drama Investigations", and "Movie Romantic Comedy". May contain information.

The keyword preference information among the personal channel preference information may be calculated from the keyword and the preference information. That is, the personal channel preference information may be calculated from information input by the user, or may be calculated by extracting a keyword from program download information. The personal channel preference information may include at least one of content production information, content content information, content composition information, and broadcast condition information.

The content production information is keyword preference information associated with content production and may include at least one of title information, producer information, production place information, production period information, and production tool information.

The content content information is keyword preference information associated with the content content, and may include at least one of production country information, production period information, language format information, language information, caption information, content type information, content genre information, and content subject information. .

The content configuration information is keyword preference information associated with the content configuration, and may include at least one of content distribution format information, content distribution source information, content distribution date information, content distributor information, and media format information.

The broadcast condition information is information about a content broadcast condition and may include at least one of content preference time information and content preference place. The content preference time information indicates a time when the user wants to watch the broadcast content, and the content preference place information indicates a place where the user wants to watch the broadcast content.

The customer information is basic information about the customer, and may include at least one of name information, age information, gender information, marriage information, child information, job information, and interest field information of the customer.

User preference information among personal channel preference information may be calculated from customer information. The user preference information includes information about general customers' dispositions. By selecting the content provided by the private channel based on the user preference information, it is possible to reflect the general customer's disposition in programming the private channel.

Since the user preference information is general customer preference information, it may be different from a specific customer's propensity, so that the user's feedback, that is, a correction request is likely to be received at a later broadcast time, is higher than the content preference information and keyword preference information. When watching a real broadcast and receiving a complaint from a user about content provided by the private channel, the personal channel preference information may be updated so that the corresponding content is not organized into a program provided through the private channel.

In addition to content preference information, keyword preference information, and user preference information, personal channel preference information includes broadcast information in a program that was watched by the customer once it was broadcasted on a private channel, so that the program watched by the customer on the private channel is not reorganized. can do.

The private channel programming information is a list of programs broadcast on the private channel. The private channel programming information may be calculated from program download information, keywords and preference information, and customer information. For example, from the program download information, "Drama Gourmet Episode 3" and "Drama 24 Hour Season 14", "Drama Gourmet Episode 4", "Drama 24: 4 Season 15" and "Drama 24: 4 Season" The program "16" may be included in private channel programming. In addition, the "Lord of the Rings" keyword from the "Lord of the Rings" keyword among the keywords and preference information may be included in the personalized channel programming information, and the "Movie Romantic Comedy" genre information of the keyword and preference information from the "Movie Woman's lyrics" The Man's Composition "program may be included in the private channel programming. Also, the program "Catch up Hollywood Star Fashion" from customer information "early 30s", "women" and "office workers" may be included in the personalized channel programming information.

The private channel programming information may be directly calculated by the IPTV receiver 310, and the metadata server 320 may receive the personal channel preference information from the IPTV receiver 310 to generate the private channel programming information. In addition, when a modification request is input from the user, the personalized channel programming information may be modified.

5 is a diagram illustrating a schema for a user description type according to the present invention, FIG. 6 is a diagram illustrating a schema for a user preference type according to the present invention, and FIG. A diagram illustrating a schema for a personal channel preference type according to the present invention.

5 to 7, personal channel preference information may be transmitted in a metadata structure. For example, the personal channel preference information may be included in a user description type element and transmitted.

The UserDescription element may include a UserPreferences element and a UsageHistory element. The UserPreferences element is a child element and includes a UserIdentifier element, a FilteringAndSearch element, a BrowsingPreferences element, and a PersonalChannelPreferences element. Here, the UserIdentifier element includes identification information for identifying information of a specific user, the FilteringAndSearch element includes preference information for searching and filtering, and the BrowsingPreferences element includes information about a preference when browsing. The PersonalChannelPreference element includes personal channel preference information.

The PersonalChannelPreferences element contains an id attribute, a timeBase attribute, a timeUnit attribute, a protected attribute, and a preferenceValue attribute. The id attribute contains identifying information to identify the element, the timeBase attribute contains information for selecting one of the Time data type or TimePoint type in the current description, and the timeUnit attribute is named time unit. Contains information about the duration of the small time interval. The protected attribute contains information indicating whether or not the user wants to keep the information private, and the preferenceValue attribute contains weight information.

In addition, the PersonalChannelPreferences element includes a FavoritePreferences element, KeywordPreferences element, and UserInformationPreferences element. The FavoritePreferences element contains content preference information, the KeywordPreferences element contains keyword preference information, and the UserInformationPreferences element contains user preference information.

The PersonalChannelPreferences element can be managed by an IPTV receiver, a separate terminal, and a metadata server in the case of a TV watched by the whole family, as many as tens of families or the number of member groups having similar tendencies. When a plurality of PersonalChannelPreferences elements are managed by an IPTV receiver or a separate terminal, a PersonalChannelPreferences element requested from a user among a plurality of PersonalChannelPreferences elements may be transmitted to the metadata server. In addition, when the metadata server manages a plurality of PersonalChannelPreferences elements, the metadata server may receive information from the IPTV receiver that can select the PersonalChannelPreferences element requested from the user among the plurality of PersonalChannelPreferences elements.

8 illustrates a schema for a Favorite Preferences Type according to the present invention.

Referring to FIG. 8, the FavoritePreferences element includes an id attribute, a timeBase attribute, a timeUnit attribute, a protected attribute, and a preferenceValue attribute. The id attribute contains identifying information to identify the element, the timeBase attribute contains information for selecting one of the Time data type or TimePoint type in the current description, and the timeUnit attribute is named time unit. It contains information about the duration of the small time interval, and the protected attribute contains information indicating whether the user wants to keep the information private. The preferenceValue attribute includes weight information, and the weight information is used to compare mutual priorities between content preference information, keyword preference information, and user preference information.

The FavoritePreferences element contains a FavoriteProgram element and a FavoriteService element. The FavoriteProgram element contains a ProgramID assertion, an EpisodeOf element, a MemberOf element, and a PreferenceCondition element. The ProgramID includes identification information for identifying a program, the EpisodeOf element includes episode number information of the series when the program is a series, and the MemberOf element includes information indicating higher episodes when the program is a series. . Here, as an example of identification information for identifying a program, the program may be a content reference identifier (CRID). The PreferenceConditon element contains a Place attribute and a Time attribute. The Place attribute contains program preference place information, and the Time attribute contains program preference time information.

 The FavoriteService element includes a ServiceId element and a PreferenceCondition element. The ServiceId element contains identification information for identifying a service. The PreferenceConditon element contains a Place attribute and a Time attribute. The Place attribute contains service preference place information, and the Time attribute contains service preference time information.

9A and 9B are diagrams illustrating a schema for a keyword preference type according to the present invention.

9A and 9B, the KeywordPreferences element includes an id attribute, a timeBase attribute, a timeUnit attribute, a protected attribute, and a preferenceValue attribute. The id attribute contains identifying information to identify the element, the timeBase attribute contains information to select one of the Time data type or TimePoint type in the current description, and the timeUnit attribute is a time unit. Contains information about the duration of the named small time interval, and the protected attribute contains information indicating whether or not the user wishes to keep the information private. The preferenceValue attribute includes weight information, and the weight information is used to compare mutual priorities between content preference information, keyword preference information, and user preference information.

The KeywordPreferences element includes a CreationPreferences element, a ClassificationPreferences element, a SourcePreferences element and a PreferenceCondition element.

The CreationPreferences element contains keyword preference information associated with content creation. For this purpose, the KeywordPreferences element includes a Title element, Creator element, Keyword element, Location element, DatePeriod element, and Tool element. The Title element includes content title information, the Creator element includes creator information, and the Keyword element includes keyword information. The Location element includes production location information, the DatePeriod element includes production period information, and the Tool element includes production tool related information.

The ClassificationPreferences element contains keyword preference information associated with the content content. To this end, the ClassificationPreferences element includes a country element, DatePeriod element, LanguageFormat element, Language element, CaptionLanguage element, Form element, Genre element, Subject element, Review element, and ParentalGuidance element. The Country element contains the country information where the content is produced, the DatePeriod element contains the production period information, and the LanguageFormat element contains information about the language format. The Language element includes information about a language, the CaptionLanguage element includes information about a caption, and the Form element includes information about a content form. In addition, the Genre element includes content genre information, the Subject element includes information about the content subject, the Review element includes review information about the content, and the ParentalGuidance element includes parental guidance information.

The SourcePreferences element contains keyword preference information associated with the content configuration. For this purpose, the SourcePreferences element includes a DisseminationFormat element, a DisseminationSource element, a DisseminationLocation element, a DisseminationDate element, a Disseminator element, and a MediaFormat element. The DisseminationFormat element includes content distribution format information, the DisseminationSource element includes content distribution source information, and the DisseminationLocation element includes distribution region information. The DisseminationDate element includes content distribution date information, the Disseminator element includes content distributor information, and the MediaFormat element includes media format information. Here, the media format may be HD or SD, for example.

The PreferenceConditon element contains a Place attribute and a Time attribute. The Place attribute includes content preference place information, and the Time attribute includes content preference time information.

FIG. 10 is a diagram illustrating a schema for a user information preference type according to the present invention.

Referring to FIG. 10, the UserInformationPreferences element includes an id attribute, a timeBase attribute, a timeUnit attribute, a protected attribute, and a preferenceValue attribute. The id attribute contains identifying information to identify the element, the timeBase attribute contains information for selecting one of the Time data type or TimePoint type in the current description, and the timeUnit attribute is named time unit. It contains information about the duration of the small time interval, and the protected attribute contains information indicating whether the user wants to keep the information private. The preferenceValue attribute includes weight information, and the weight information is used to compare mutual priorities between content preference information, keyword preference information, and user preference information.

UserInformationPreferences includes a UserIdentifier element, an Age element, a Sex element, an Occupation element, and a PersonalInterest element. The UserIdentifier element contains a protected attribute containing information indicating whether you want to keep the information private and a Name attribute containing user name information. The Age element contains user age information, the Sex element contains user gender information, the Occupation element contains user occupation information, and the PersonalInterest element contains user interest information.

11 is a block diagram showing the configuration of a preferred embodiment of a digital broadcast receiver according to the present invention.

Referring to FIG. 11, the IPTV receiver 1100 may include a separate tuner to receive terrestrial broadcast, cable broadcast, satellite broadcast, and the like. However, in the present invention, for the convenience of description, the description will be made mainly on the part of processing the content transmitted using the Internet network.

The IPTV receiver 1100 may include a network interface unit 1102, a TCP / IP manager 1104, a service delivery manager 1106, a personal video recorder (PVR) manager 1108, a demultiplexer 1110, a data decoder 1112, The decoder 1114, the display unit 1118, the application manager 1120, the service information database unit 1124, the service discovery manager 1126, the service control manager 1128, the metadata manager 1130, and the content database unit ( 1132).

The network interface unit 1102 receives the packets received from the network and transmits the packets to the network. That is, the network interface unit 1102 receives an SD & S record, a packet including BCG metadata, and a packet including content from a service provider through a network. The network interface 1102 transmits personal channel preference information to the network. Here, the personal channel preference information may be transmitted through a metadata structure, and may be included in the PersonalChannelPreferences element described above with reference to FIGS. 5 to 10.

The TCP / IP manager 1104 is involved in packet forwarding from the source to the destination for the packet received by the IPTV receiver 1100 and the packet transmitted by the IPTV receiver 1100. The TCP / IP manager 1104 classifies the received packet to correspond to an appropriate protocol, and classifies the packet into a service delivery manager 1106, a service discovery manager 1126, a service control manager 1128, and a metadata manager 1130. Output the printed packet. For example, when the TCP / IP manager 1104 receives the SD & S record, the TCP / IP manager 1104 may output the received SD & S record to the service discovery manager 1126. In addition, when the TCP / IP manager 1104 receives BCG metadata, the TCP / IP manager 1104 may output the received BCG metadata to the metadata manager 1130. In addition, the TCP / IP manager 1104 may be involved in transmitting a packet including personal channel preference information to the metadata server.

The service delivery manager 1106 is responsible for controlling the received service data. For example, when controlling real-time streaming data, RTP / RTCP (Real-Time Transport Protocol / RTP Control Protocol) may be used. When transmitting the real-time streaming data using the RTP, the service delivery manager 1106 parses the received data packet according to the RTP and transmits it to the PVR manager 1108 or the control of the service manager 1122. In the content database unit 1132. Then, the RTCP is used to feed back the network reception information to a server that provides a service.

The PVR manager 1108 receives service data from the service delivery manager 1106 and records the content data in the content database unit 1132.

The demultiplexer 1110 demultiplexes the received packet into audio, video, PSI (Program Specific Information) data, and the like, and transmits the demultiplexer 1110 to the decoder 1114 and the data decoder 1112, respectively.

The data decoder 1114 decodes service information such as program specific information (PSI). That is, the data decoder 1114 receives and decodes the demultiplexed PSI section, the Program and Service Information Protocol (PSIP) section, or the DVB-SI (Service Information) section in the demultiplexer 1110.

In addition, the data decoder 1112 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 1124.

The decoder 1114 decodes the video data and the audio data received by the demultiplexer 1110. To this end, the decoder 1114 includes an audio decoder 1115 and a video decoder 1116. The audio data decoded by the audio decoder 1115 is provided to the user through a speaker (not shown), and the video data decoded by the video decoder 1116 is provided to the user through the display 1118.

The application manager 1120 manages the overall state of the IPTV receiver 1100, provides a user interface, and manages other managers. For this purpose, the application manager 1120 includes a user interface manager 1121 and a service manager 1122.

The user interface manager 1121 provides a graphical user interface (GUI) for a user by using an on screen display (OSD) or the like, and receives a key input from a user to perform a receiver operation according to the input. For example, the user interface manager 1121 may receive a keyword for calculating personal channel preference information from the user, and may update the keyword and the preference information based on the received keyword. In addition, the user interface manager 1121 may transmit the key input signal to the service manager 1122 when the user receives a key input related to channel selection. For example, when the user interface manager 1121 receives a private channel selection key input from a user, the user interface manager 1121 transmits the private channel selection key input signal to the service manager 1122.

The user interface manager 1121 calculates personal channel preference information based on personal broadcast channel programming information. The personal channel preference information is information for selecting broadcast content provided by the private channel, and may include at least one of content preference information, keyword preference information, and user preference information. In addition, the personal broadcasting channel programming information may include at least one of the program download information, keywords and preference information, and customer information described above with reference to FIG. 4. The user interface manager 1121 may calculate content preference information from program download information, calculate keyword preference information from program download information, keywords, and preference information, and calculate user preference information from customer information.

The service manager 1122 controls a manager associated with a service such as a service delivery manager 1106, a service discovery manager 1126, a service control manager 1128, and a metadata manager 1130 and an IG-OITF client.

The service manager 1122 also creates a channel map and selects a channel using the channel map according to a key input received from the user interface manager 1121. The service manager 1122 receives the service information of the channel from the data decoder 1112 and sets the audio / video packet identifier (PID) of the selected channel to the demultiplexer 1110.

In addition, the service manager 1122 controls the personal channel preference information calculated by the user interface manager 1121 to be transmitted to the metadata server. That is, the service manager 1122 controls the personal channel preference information to be transmitted to the metadata server when the private channel selection key input signal is received from the user interface manager 1121. The service manager 1122 controls to receive and display content provided through a private channel.

The service discovery manager 1126 provides information necessary for selecting a service provider providing a service. That is, the service discovery manager 1126 receives the SD & S record, processes it, and stores it in the service information database unit 1124. Upon receiving a signal regarding channel selection from the service manager 1122, the service discovery manager 1126 uses the information to find a service.

The service control manager 1128 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, use IGMP or RTSP, and if a user selects a service such as VOD (Video On Demand), use RTSP to select a service, Perform control. The RTSP protocol may provide a trick mode for real time streaming. If the user selects a private channel, if the content provided by the private channel is a live broadcasting service, the service is selected and controlled using IGMP or RTSP, and the content provided by the private channel is VOD. In case of the program provided by, the service selection and control is performed using RTSP.

In addition, the service control manager 1128 may initialize and manage a session through the IMC gateway using an IP multimedia subsystem (IMS) or a session initiation protocol (SIP). The protocols are one embodiment, and other protocols may be used depending on implementation.

The metadata manager 1130 manages metadata associated with a service and stores the metadata in the service information database unit 1124. In addition, the metadata manager 1130 may change the personal channel preference information generated by the user interface manager 1121 into a metadata structure. In a modified embodiment, the user interface manager 1121 may change personal channel preference information into a metadata structure. As an example of the metadata structure, the metadata structure may be the PersonalChannelPreferences Type described above with reference to FIGS. 5 to 10.

The service information database unit 1124 stores service information decoded by the data decoder 1112, metadata managed by the metadata manager 1130, and information necessary to select a service provider provided by the service discovery manager 1126. . In addition, the service information database unit 1124 may store setup data for the system. In addition, the personal channel preference information calculated by the user interface 1121 may be stored.

The service information database unit 1124 and the content database unit 1132 may be implemented using nonvolatile memory (NVRAM) or flash memory, respectively, and are divided into two logically separated areas on the same storage area. Can be implemented.

12 is a flowchart illustrating a preferred embodiment of the broadcast data processing method according to the present invention.

Referring to FIG. 12, the IPTV receiver 1100 receives a request signal for a private channel from a user (S1200). Here, the user can select a private channel by clicking a menu button on the remote control, a menu button on the broadcast receiver, a menu button on the OSD, and the like.

The IPTV receiver 1100 checks whether personal channel preference information exists (S1210). If the personal channel preference information does not exist, the IPTV receiver 1100 calculates the personal channel preference information based on the personal broadcast channel programming information (S1220). The personal channel preference information is information for selecting broadcast content provided by the private channel, and may include at least one of content preference information, keyword preference information, and user preference information. In addition, the individual broadcast channel programming information may include at least one of the program download information, keywords and preference information, customer information described above in FIG. The IPTV receiver 1100 calculates content preference information from program download information, calculates keyword preference information from program download information, keywords, and preference information, and calculates user preference information from customer information.

The IPTV receiver 1100 transmits personal channel preference information (S1230). Here, the IPTV receiver 1100 may transmit personal channel preference information in a metadata structure, and may transmit the personal channel preference information as the personal channel preference type described above with reference to FIGS. 5 to 10.

The IPTV receiver 1100 receives a broadcast content selected based on the transmitted personal channel preference information as a private channel (S1240). In this case, the metadata server selects the broadcast content to be provided in the private channel based on the personal channel preference information to generate and modify the personal channel program list, and the content server broadcasts the broadcast content indicated by the personal channel program list information to the IPTV receiver. It may transmit to 1100.

The IPTV receiver 1100 displays the received broadcast content in operation S1250. The IPTV receiver 1100 checks whether a change request for personal channel preference information is input from the user (S1260). When a change request for personal channel preference information is input from the user, the IPTV receiver 1100 modifies the personal channel preference information according to the input change request (S1270). The IPTV receiver 1100 transmits the modified personal channel preference information by performing step S1230.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific preferred embodiments described above, and the present invention belongs to the present invention without departing from the gist of the present invention as claimed in the claims. Various modifications can be made by those skilled in the art, and such changes are within the scope of the claims.

1 is a view showing a preferred embodiment of the IPTV system according to the present invention,

2A and 2B are schematic diagrams for multicast and unicast schemes, respectively;

3 is a diagram illustrating a preferred embodiment of a method for configuring a private channel according to the present invention;

4 is a diagram illustrating a preferred embodiment of information for configuring personal channel preference information according to the present invention;

5 is a diagram illustrating a schema for a user description type according to the present invention;

6 is a diagram illustrating a schema for a user preference type according to the present invention;

7 illustrates a schema for a Personal Channel Preferences Type according to the present invention;

8 is a diagram illustrating a schema for a Favorite Preferences Type according to the present invention;

9A and 9B illustrate a schema for a KeywordPreferences Type according to the present invention;

10 is a diagram illustrating a schema for a user information preference type (UserInformationPreferences Type) according to the present invention;

11 is a block diagram showing the configuration of a preferred embodiment of a digital broadcast receiver according to the present invention;

12 is a flowchart illustrating a preferred embodiment of the broadcast data processing method according to the present invention.

Claims (20)

Transmitting personal channel preference information which is information for selecting broadcast content provided by the private channel; Receiving the selected broadcast content on the personal channel based on the transmitted personal channel preference information; And Displaying the received broadcast content; broadcast data processing method comprising a. The method of claim 1, The personal channel preference information includes at least one of content preference information, keyword preference information, and user preference information. 3. The method of claim 2, And the content preference information, keyword preference information, and user preference information each include weight information for comparing mutual priorities. 3. The method of claim 2, The content preference information includes at least one of program preference information and service preference information. 3. The method of claim 2, And the keyword preference information is keyword information for searching for content preferred by a viewer. 3. The method of claim 2, The user preference information may include at least one of name information, age information, gender information, marriage information, child information, job information, and interest field information of the viewer. The method of claim 1, In the transmitting step, And transmitting the personal channel preference information in a metadata structure. The method of claim 1, And calculating the personal channel preference information. The method of claim 8, In the calculating step, And calculating the personal channel preference information from the history information on the downloaded program. The method of claim 8, In the calculating step, And calculating the personal channel preference information from information input by a user. The method of claim 8, In the calculating step, And calculating the personal channel preference information from customer information. A user interface manager for calculating personal channel preference information, which is information for selecting broadcast content provided by the private channel; A network interface unit transmitting a packet including the calculated personal channel preference information and receiving broadcast content selected based on the transmitted personal channel preference information through the private channel; And And a display unit for displaying the received broadcast content. The method of claim 12, The personal channel preference information includes at least one of content preference information, keyword preference information, and user preference information. The method of claim 13, Wherein the content preference information, keyword preference information, and user preference information each include weight information for comparing mutual priorities. The method of claim 13, The content preference information comprises at least one of program preference information and service preference information. The method of claim 13, And the keyword preference information is keyword information for searching for content preferred by a viewer. The method of claim 13, The user preference information may include at least one of a viewer's name information, age information, gender information, marriage information, child information, job information, and interest field information. The method of claim 12, The user interface manager, And calculating the personal channel preference information from the history information on the downloaded program. The method of claim 12, The user interface manager, And calculating the personal channel preference information from information input by a user. The method of claim 12, The personal channel preference information is transmitted in a metadata structure.

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