WO2012029568A1 - 送信装置および方法、受信装置および方法、並びに送受信システム - Google Patents
送信装置および方法、受信装置および方法、並びに送受信システム Download PDFInfo
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- WO2012029568A1 WO2012029568A1 PCT/JP2011/068837 JP2011068837W WO2012029568A1 WO 2012029568 A1 WO2012029568 A1 WO 2012029568A1 JP 2011068837 W JP2011068837 W JP 2011068837W WO 2012029568 A1 WO2012029568 A1 WO 2012029568A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/475—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data
- H04N21/4758—End-user interface for inputting end-user data, e.g. personal identification number [PIN], preference data for providing answers, e.g. voting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25866—Management of end-user data
- H04N21/25883—Management of end-user data being end-user demographical data, e.g. age, family status or address
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- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25866—Management of end-user data
- H04N21/25891—Management of end-user data being end-user preferences
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- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
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- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
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- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/65—Transmission of management data between client and server
- H04N21/658—Transmission by the client directed to the server
- H04N21/6582—Data stored in the client, e.g. viewing habits, hardware capabilities, credit card number
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- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
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- H04N21/854—Content authoring
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- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
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- H04N21/854—Content authoring
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- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/29—Arrangements for monitoring broadcast services or broadcast-related services
- H04H60/33—Arrangements for monitoring the users' behaviour or opinions
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- H04H60/61—Arrangements for services using the result of monitoring, identification or recognition covered by groups H04H60/29-H04H60/54
- H04H60/65—Arrangements for services using the result of monitoring, identification or recognition covered by groups H04H60/29-H04H60/54 for using the result on users' side
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- H04H60/68—Systems specially adapted for using specific information, e.g. geographical or meteorological information
- H04H60/72—Systems specially adapted for using specific information, e.g. geographical or meteorological information using electronic programme guides [EPG]
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
Definitions
- the present invention relates to a transmission apparatus and method, a reception apparatus and method, and a transmission / reception system, and more particularly to a transmission apparatus and method, a reception apparatus and method, and a transmission / reception system that enable content to be acquired according to metadata. .
- a filtering attribute also referred to as a filtering index, filtering metadata, etc.
- a filtering attribute also referred to as a filtering index, filtering metadata, etc.
- the content filtering sorting is performed in the client that receives (acquires) the content.
- Filtering attributes are set as values for metadata elements selected from metadata sets defined by standardization organizations such as ATSC (Advanced Television Standard Committee) and ARIB (Association of Radio Industries and Businesses).
- a content to which “viewing target” is selected as a metadata element and a filtering attribute with “10s” set as a value for the metadata element is given as ““ viewing target is teenage ” It is provided to a client that performs filtering so as to acquire “content for viewers”.
- the provider side could not distribute the content given the viewer's interest as metadata according to the needs at that time (for example, considering the fashion).
- the present invention has been made in view of such a situation, and makes it possible to acquire content according to the needs at that time.
- the transmission device is a transmission device that distributes content to a client, and that generates question information that is information representing a question about a user preference of the client, and the question Transmitting means for transmitting to the client information and provider-side answer information that is information representing an answer set by the provider that provides the content in response to a question about the user's preference.
- the transmission device further includes metadata generation means for generating the metadata including the provider-side answer information as metadata of the content corresponding to the answer set by the provider, and the transmission means Can send the metadata to the client.
- the transmission device may further include query generation means for generating a query indicating a combination of the answers set by the provider, and the transmission means may cause the client to transmit the query.
- the provider-side answer information can be classified into common answer information that represents an answer to a question that does not depend on the provider, and unique answer information that represents an answer to a question unique to the provider.
- a transmission method is a transmission method of a transmission device that distributes content to a client, and generates a question information that is information representing a question about a user preference of the client; Transmitting the question information and provider-side answer information, which is information representing an answer set by the provider providing the content, to the client in response to a question about the user's preference; including.
- question information which is information representing a question about a user's preference of a client
- Provider-side answer information that is information representing the set answer is transmitted to the client.
- a receiving device is a receiving device that acquires content distributed from a server, and corresponds to question information that is transmitted from the server and represents information about a user's preference. Then, an answer generating means for generating user-side answer information that is information representing the user's answer to the question, the user-side answer information, and the content sent in response to the question transmitted from the server Matching means for determining acquisition of the content distributed from the server by matching with provider-side answer information that is information representing an answer set by the provider who provides the content.
- the matching unit can determine the acquisition of the content corresponding to the metadata including the provider-side answer information by performing the matching.
- the matching means performs the matching based on the user-side answer information and a query transmitted from the server and indicating a combination of the answers set by the provider. Acquisition of the content to be distributed can be determined.
- the receiving device further includes query generation means for generating a query indicating a combination of the user's answers to the user's preference question, and the matching means is transmitted from the query and the server. By performing the matching based on the provider-side answer information, acquisition of the content distributed from the server can be determined.
- the user-side answer information and the provider-side answer information are classified into common answer information that represents an answer to a question that does not depend on the provider, and unique answer information that represents an answer to the provider's own question. it can.
- a receiving method is a receiving method for a receiving device that acquires content distributed from a server, and is a question that is transmitted from the server and represents information about a user's preference.
- an answer generation step of generating user-side answer information that is information representing the user's answer to the question, the user-side answer information, and the question transmitted from the server
- a matching step of determining acquisition of the content distributed from the server by matching with provider-side answer information that is information representing an answer set by the provider who provides the content.
- user-side answer information which is information representing a user's answer to a question
- question information that is a question representing a user's preference.
- provider-side answer information that is the information set by the provider who provides the content for the question sent from the server. The acquisition of the content distributed from the server is determined.
- a transmission / reception system is a transmission / reception system including a transmission device that distributes content and a reception device that acquires the content distributed from the transmission device, wherein the transmission device receives the reception Question generating means for generating question information, which is information representing a question about a user's preference of the device, the question information, and a question about the user's preference, set by a provider who provides the content Transmission means for transmitting provider-side answer information, which is information representing an answer, to the receiving device, and the receiving device responds to the question in response to the question information transmitted from the transmitting device.
- Answer generating means for generating user-side answer information representing the user's answer; the user-side answer information; and the proposal transmitted from the transmitting device.
- the question information which is the information showing the question about the user preference of a receiver is produced
- the provider-side answer information which is information representing the answer set by, is transmitted to the receiving apparatus, and the user-side answer information representing the user's answer to the question is corresponding to the question information transmitted from the transmitting apparatus. Matching of the generated user-side answer information and the provider-side answer information transmitted from the transmission apparatus is performed, and acquisition of content distributed from the transmission apparatus is determined.
- FIG. 1 shows a configuration example of a broadcasting system according to an embodiment of the present invention.
- a broadcasting system 10 in FIG. 1 includes a server 11 installed on a provider side such as a broadcaster that broadcasts (provides) a digital television program (hereinafter referred to as “content” as appropriate), and a user's home that views the broadcasted content.
- the client terminal hereinafter simply referred to as a client 12 installed in the network.
- the client 12 is installed in each of a plurality of user homes, but may be configured as a portable terminal device such as a mobile phone or a PDA (Personal Digital Assistant).
- the server 11 sends content metadata regarding the content together with the content to the client 12 as a digital broadcast wave signal.
- the client 12 reproduces or accumulates only the content desired by the user by filtering the content based on the content metadata transmitted together with the content.
- the content metadata may be sent before the content is sent instead of being sent together with the content.
- FIG. 2 illustrates a hardware configuration example of the server 11.
- the server 11 is configured based on a computer, for example.
- the CPU (Central Processing Unit) 21 executes various processes according to a program stored in a ROM (Read Only Memory) 22 or a program loaded from a storage unit 28 to a RAM (Random Access Memory) 23.
- the RAM 23 also appropriately stores data necessary for the CPU 21 to execute various processes.
- the CPU 21, ROM 22, and RAM 23 are connected to each other via a bus 24.
- An input / output interface 25 is also connected to the bus 24.
- the input / output interface 25 includes an input unit 26 including a keyboard and a mouse, a display including a CRT (Cathode Ray Tube) and an LCD (Liquid Crystal Display), an output unit 27 including a speaker, and a hard disk.
- a communication unit 29 including a storage unit 28, a modem, a terminal adapter, and the like is connected. The communication unit 29 communicates with an external device via a network (not shown). A program may be acquired via the communication unit 29 and stored in the storage unit 28.
- a drive 30 is connected to the input / output interface 25 as necessary, and a removable medium 31 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory is appropriately mounted, and a computer program read from them is Installed in the storage unit 28 as necessary.
- a removable medium 31 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory is appropriately mounted, and a computer program read from them is Installed in the storage unit 28 as necessary.
- the hardware of the client 12 is similarly configured as shown in FIG.
- the server 11 includes a PDI-Q generator 41, a transmission unit 42, a PDI-A generator 43, a metadata distributor 44, a content storage unit 45, and a content distributor 46.
- the PDI-Q generator 41 generates PDI-Q (Preference-Demographic-and-Interest--Question) that is information indicating a question about the preference of the user (viewer) of the client 12 and transmits the PDI-Q to the client 12 via the transmission unit 42. At the same time, it is supplied to the PDI-A generator 43.
- PDI-Q Preference-Demographic-and-Interest--Question
- the transmission unit 42 transmits various data supplied from the PDI-Q generator 41, the metadata distributor 44, and the content distributor 46 to the client 12.
- the PDI-A generator 43 Based on the PDI-Q from the PDI-Q generator 41, the PDI-A generator 43 represents an answer set by the provider to the above-described question about the user preference of the client 12 corresponding to the PDI-Q.
- Information PDI-A (Preference-Demographic-and-Interest--Answer) is generated and supplied to the metadata distributor 44.
- the metadata distributor 44 specifies (inquires) the content corresponding to the answer set by the provider from the content stored in the content storage unit 45 based on the PDI-A from the PDI-A generator 43.
- the metadata distributor 44 generates content metadata including PDI-A as the content metadata of the identified content, and transmits the content metadata to the client 12 via the transmission unit 42.
- the content storage unit 45 stores various contents distributed to the client 12.
- the content distributor 46 acquires the content specified by the metadata distributor 44 from the content stored in the content storage unit 45 and transmits it to the client 12 via the transmission unit 42.
- the client 12 includes a receiving unit 51, a PDI-A generator 52, a PDI-A storage unit 53, a content filter 54, a content reproduction unit 55, and a content storage unit 56.
- the receiving unit 51 receives various data transmitted from the server 11 and supplies the data to the PDI-A generator 52 or the content filter 54.
- the PDI-A generator 52 Based on the PDI-Q transmitted from the server 11, the PDI-A generator 52 generates a PDI-A representing the user's answer to the question about the user preference of the client 12 corresponding to the PDI-Q, The data is supplied to the PDI-A storage unit 53.
- the PDI-A storage unit 53 stores the PDI-A from the PDI-A generator 52.
- the PDI-A stored in the PDI-A storage unit 53 is read by the content filter 54 as appropriate.
- the content filter 54 reads PDI-A from the PDI-A storage unit 53, and based on the PDI-A and the PDI-A included in the content metadata of the content transmitted from the server 11, the content filter 54 Filter.
- the content filter 54 supplies the filtered content to the content reproduction unit 55 or the content storage unit 56 according to the filtering result.
- the content playback unit 55 plays back the content from the content filter 54.
- the content playback unit 55 acquires content from the content storage unit 56 and plays back the content.
- the content storage unit 56 stores (records) the content from the content filter 54.
- the provider side such as a broadcaster
- the provider side staff In response to the operation, the PDI-Q generator 41 of the server 11 asks the viewer, that is, the user of the client 12, what kind of preference or attribute the PDI-Q generator 41 has in step S11. Is generated.
- the first line shows the declaration and definition for identifying PDI-Q
- the second line shows the name and type declaration of the entire question defined as PDI-Q. .
- Lines 3 through 12 show the name and type declarations for each of the questions declared in line 2.
- the question type “IntegerAnswerType” defined by the name “QIA” on the fifth line indicates that the question is a question that requires an integer value type answer.
- the question type “BooleanAnswerType” defined by the name “QBA” indicates that the question is a question for which a logical value type answer is required.
- the question type “SelectionAnswerType” defined by the name “QSA” on the seventh line indicates that the question is a question that requires an answer selection type answer.
- the question type “TextAnswerType” defined by the name indicates that the question is a question that requires a character string type answer.
- the question type “AnyAnswerType” defined by the name “QAA” on the ninth line indicates that the question does not limit the answer type.
- Lines 13 to 44 declare the elements of each of the questions declared as above, defined by the names “QIA”, “QBA”, “QSA”, and “QTA”. Show.
- the id element shown in the 15th, 24th, 31st, and 40th lines represents an ID (Identifier) for identifying each question item.
- “Common: [category:] question-ID” Is defined. In this first format, “common” indicates that the question identified by the id element is a commonly defined question regardless of provider, “category” indicates the category of the question, and “question” -ID "represents the identifier of the question.
- “category” “Common: [category1: category2: category3: ...] question-ID” A hierarchical nested structure may be used.
- the id element has the second format, “ProviderName: [category:] question-ID” Is defined.
- “providerName” represents the name of the provider that sets the question identified by the id element. Note that “category” and “question-ID” are the same as those in the first format.
- questions defined as PDI-Q are distinguished by the id element between questions that do not depend on the provider that provides the content (common to providers) and questions that are defined independently by the provider that provides the content. .
- provider common filtering parameters questions that do not depend on the provider that provides the content, and answers to those questions will be referred to as provider common filtering parameters. Questions that are defined by the provider that provides the content and answers to those questions will be This is an original filtering parameter.
- the provider common filtering parameter is defined in common for each provider regardless of individual providers, and therefore generally provided by a vendor (manufacturer, etc.) of the client 12. Therefore, the PDI-Q generator 41 in the server 11 can be provided by the provider side, but can also be provided by the vendor of the client 12.
- “transactional” in the first line indicates the contents of each item of PDI-Q when the question (question group) defined in PDI-Q is updated in the transmitted client 12. All the contents of each item of PDI-Q are not recorded / updated due to some accident in the middle of the process of recording / updating to the storage area (not shown) due to a disk accident or interruption of processing due to increased processing load. Is the value indicating whether or not this recording / updating process is not performed (so-called rollback) by going back to the state immediately before recording / updating the contents of each item of PDI-Q. If is true, the PDI-Q is rolled back.
- the second to fifth lines define a question that asks for a Boolean answer.
- the 10th to 17th lines define a question for an answer selection type answer.
- ⁇ Id> ProviderA 123 ⁇ / id> in the 11th line specifies the id element of the question, and ⁇ q> In which of the following sports are you most interested? (Multiple selection allowed)
- ⁇ / q> represents the question itself
- ⁇ a> Soccer ⁇ /a> in the 15th line
- ⁇ a> Hockey ⁇ /a> in the 16th line represent options of answers to the questions.
- minChoice "1"
- the 25th to 28th lines define a question for a character string type answer.
- ⁇ Id> ProviderA: 321 ⁇ / id> in the 26th line specifies the id element of the question, and ⁇ q> Who's products are you most interested in recently? ⁇ / q> represents the question itself.
- each question defined by PDI-Q in FIG. 7 is referred to as a question of each id element.
- the questions defined in the 2nd to 5th lines are called “Common: 111” questions, and the questions defined in the 6th to 9th lines are called “Common: 222” questions.
- the questions defined in the 10th to 17th lines are called “ProviderA: 123” questions, the questions defined in the 18th to 24th lines are called “ProviderA: ProgramX: 123” questions, 25
- the questions defined in the lines 28 to 28 are called “ProviderA: 321” questions.
- the “Common: 111” question and the “Common: 222” question are distinguished by the provider common filtering parameters, the “ProviderA: 123” question, the “ProviderA: ProgramX: 123” question, and the “ProviderA: The question “321” is distinguished by provider-specific filtering parameters.
- the “Common: 111” question indicates that the identifier is “111”, which is set in common with the provider, and the “ProviderA: ProgramX: 123” question is “ProviderA”. This indicates that the category (program ID) set by the provider is “ProgramX” and the identifier is “123”.
- step S ⁇ b> 12 the PDI-Q generator 41 of the server 11 transmits the generated PDI-Q to the client 12 via the transmission unit 42 and supplies it to the PDI-A generator 43.
- step S ⁇ b> 21 the receiving unit 51 of the client 12 receives the PDI-Q transmitted from the server 11 and supplies it to the PDI-A generator 52.
- the PDI-Q is received by the client 12 every time it is broadcast (transmitted) at a predetermined time interval from a broadcast station as a provider in which the server 11 is installed, for example. Further, the PDI-Q may be received by the client 12 when the channel is matched with the broadcasting station where the server 11 is installed in the client 12.
- step S22 the PDI-A generator 52 of the client 12 generates PDI-A for the question defined by the PDI-Q received by the receiving unit 51. Specifically, when the PDI-A generator 52 receives the PDI-Q from the server 11, the PDI-A generator 52 displays a screen corresponding to the question defined in the PDI-Q on a display unit (not shown). By causing the user (viewer) of the client 12 to input or select an answer to the question, PDI-A representing the answer is generated. That is, the PDI-A generator 52 generates PDI-A representing an answer to the question defined by PDI-Q by interacting with the user.
- Example of screen display in user interaction with PDI-A generator [Example of screen display in user interaction with PDI-A generator]
- FIG. 8 to FIG. 12 an example of screen display in the dialogue with the user by the PDI-A generator 52 will be described.
- the client 12 has received the PDI-Q described with reference to FIG. 7, and a display unit (not shown) of the client 12 displays a question group defined by the received PDI-Q. Assume that the corresponding screens are displayed sequentially.
- FIG. 8 shows a screen display example corresponding to the “Common: 111” question among the questions defined in the PDI-Q described with reference to FIG.
- the question “Are you currently employed?” Shown in the fourth line of FIG. 7 is displayed in the question presentation unit 61. Further, a message prompting the user to input an answer to the question “Please select one”, a selection button 62-1 for causing the user to select “Yes” as an answer to the question, and a question As a response to this, a selection button 62-2 for causing the user to select “No” is displayed.
- FIG. 9 shows a screen display example corresponding to the “Common: 222” question among the questions defined in the PDI-Q described with reference to FIG.
- the question “What is the age of the oldest member of the household who watches television?” Shown in the eighth line of FIG.
- a message for prompting the user to input an answer to the question “Please input age” and an answer input unit 72 for causing the user to input an integer value as an answer to the question are displayed.
- FIG. 10 shows a screen display example corresponding to the question “ProviderA: 123” among the questions defined in PDI-Q described with reference to FIG.
- a message prompting the user to input an answer to the question “Please select one or more of the following, and choose from three or less”, and options “Baseball”, “Basketball”, “ Selection buttons 82-1 to 82-4 for causing the user to select “Soccer” and “Hockey” are displayed.
- FIG. 11 shows a screen display example corresponding to the question “ProviderA: ProgramX: 123” among the questions defined in PDI-Q described with reference to FIG.
- a message prompting the user to enter an answer to the question “Please select one from the following.” And choices “Never”, “Occasionally”, and “Frequently” as answers to the question.
- Selection buttons 92-1 to 92-3 for allowing the user to select are displayed.
- FIG. 12 shows a screen display example corresponding to the question “ProviderA: 321” among the questions defined in PDI-Q described with reference to FIG.
- a message “Please describe freely” prompting the user to input an answer to the question, and an answer input unit 102 for causing the user to input a character string as an answer to the question is displayed.
- the PDI-A generator 52 allows the PDI-Q to input or select an answer to the question defined in the PDI-Q by the screen display described with reference to FIGS. Generate the corresponding PDI-A.
- the screen display described in FIGS. 8 to 12 may be displayed shortly after receiving PDI-Q, or after receiving PDI-Q, PDI-Q is stored in a storage unit (not shown). It may be held, and may be displayed when the display of the setting screen is instructed by the user.
- Example of PDI-A an example of PDI-A generated by the PDI-A generator 52 will be described with reference to FIG.
- the PDI-A shown in FIG. 13 is a PDI-A generated based on the selection or input of an answer by the user with respect to the screen display shown in FIGS.
- the second to fifth lines indicate the user's answer to the question presented by the screen display described in FIG. That is, ⁇ id> Common: 111 ⁇ / id> in the third line indicates the id element of the question presented by the screen display of FIG. 8, and ⁇ a> true ⁇ /a> in the fourth line is the question 8 shows that the selection button 62-1 ("Yes" answer) is selected by the user in the screen display of FIG.
- Lines 6 through 9 show the user's answers to the questions presented by the screen display described in FIG. That is, ⁇ id> Common: 222 ⁇ / id> in the seventh line indicates the id element of the question presented by the screen display of FIG. 9, and ⁇ a> 34 ⁇ /a> in the eighth line is the question 9 shows that “34” is input as an integer value to the answer input unit 72 in the screen display of FIG.
- the 10th to 15th lines indicate the user's answers to the questions presented by the screen display described in FIG. That is, ⁇ id> ProviderA: 123 ⁇ / id> in the 11th line indicates the id element of the question presented by the screen display of FIG. 10, and ⁇ a> Baseball ⁇ /a>, 13 in the 12th line. ⁇ a> Soccer ⁇ /a> in the line and ⁇ a> Hockey ⁇ /a> in the 14th line are answers to the question, and the selection buttons 82-1, 82-3 and 82-4 are displayed in the screen display of FIG. It is selected by the user.
- the 16th to 19th lines indicate the user's answers to the questions presented by the screen display described in FIG. That is, ⁇ id> ProviderA: ProgramX: 123 ⁇ / id> in the 17th line indicates the id element of the question presented by the screen display of FIG. 11, and ⁇ a> Occasionally ⁇ /a> in the 18th line. Indicates that the selection button 92-2 has been selected by the user in the screen display of FIG. 11 as an answer to the question.
- the 20th to 23rd lines indicate the user's answers to the questions presented by the screen display described in FIG. That is, ⁇ id> ProviderA: 321 ⁇ / id> on the 21st line indicates the id element of the question presented by the screen display of FIG. 12, and ⁇ a> Somy ⁇ /a> on the 22nd line indicates the question. 12 shows that “Somy” is input as a character string to the answer input unit 102 in the screen display of FIG.
- the PDI-A generator 52 supplies the PDI-A generated in this way to the PDI-A storage unit 53 for storage.
- the PDI-A stored in the PDI-A storage unit 53 is used when determining whether or not the content distributed from the server 11 matches the user preference of the client 12, as will be described later.
- the PDI-A generator 43 of the server 11 generates PDI-A for the question defined by PDI-Q from the PDI-Q generator 41, and the metadata distributor 44.
- the PDI-A generator 43 is described on a display unit (not shown) with reference to, for example, FIGS.
- a screen corresponding to the question defined in PDI-Q is displayed, and an answer to the question is input or selected by the staff of the broadcasting station, thereby generating PDI-A representing the answer.
- the staff of the broadcasting station inputs or selects an answer corresponding to the content to be distributed as an answer to the question defined in PDI-Q. That is, the PDI-A generated by the PDI-A generator 43 is information that allows the provider side to take into account the user (viewer) preference of the client 12 and allow the viewer to view the content that will be distributed later. (Answer).
- the metadata distributor 44 specifies (inquires) the content corresponding to PDI-A from the content stored in the content storage unit 45 based on the PDI-A from the PDI-A generator 43.
- the content specified here may be such that the similarity between PDI-A from the PDI-A generator 43 and content metadata pre-assigned to the stored content is higher than a predetermined value, The content may be pre-selected by the station staff as content that the user wants to view.
- the content specified by the metadata distributor 44 is acquired from the content storage unit 45 by the content distributor 46.
- the metadata distributor 44 includes content metadata including PDI-A based on the content metadata previously given to the content specified in step S15 and the PDI-A from the PDI-A generator 43. Is newly generated.
- step S16 the transmission unit 42 distributes the acquired content to the content distributor 46 together with the content metadata generated by the metadata distributor 44.
- content metadata in addition to the content metadata generated by the metadata distributor 44, content metadata defined by a standardization organization may be transmitted.
- steps S13 to S16 do not need to be performed immediately after the process in step S12, and are performed until the PDI-A is generated and stored in the client 12 owned by each user. It only has to be.
- step S16 the content is distributed with the content metadata.
- the content may not be distributed with the content metadata, and the content metadata including PDI-A is transmitted to the client 12 in advance. Later, content corresponding to the content metadata may be distributed.
- step S23 the receiving unit 51 of the client 12 receives the content and content metadata distributed from the server 11, and the content filter 54 is received. To supply.
- step S24 the content filter 54 matches the PDI-A stored in the PDI-A storage unit 53 with the PDI-A included in the content metadata from the server 11.
- the former is referred to as user-side PDI-A
- the latter is called provider-side PDI-A.
- the provider-side PDI-A shown in FIG. 14 has the same basic configuration as the user-side PDI-A shown in FIG. 13 and will not be described in detail. “False” is selected as the answer to the “Common: 111” question, “Baseball” is selected as the answer to the “ProviderA: 123” question, and “Never” is selected as the answer to the “ProviderA: ProgramX: 123” question It has been shown.
- the content filter 54 compares the user side PDI-A and the provider side PDI-A, and if at least one answer to the question matches, the user side PDI-A and the provider side PDI-A If it is determined that there is a match and no answer to the question matches, it is determined that the user side PDI-A and the provider side PDI-A do not match. In this case, each of the answer to the question “ProviderA: 123” in the user side PDI-A shown in FIG. 13 and the answer to the question “ProviderA: 123” in the provider side PDI-A shown in FIG. ”Is included, and the user side PDI-A and the provider side PDI-A are determined to match.
- the PDI-A shown in FIG. 15 is transmitted from the server 11 as the provider-side PDI-A.
- the provider-side PDI-A shown in FIG. 15 confirms that “Basketball” has been selected as the answer to the “ProviderA: 123” question and “Never” has been selected as the answer to the “ProviderA: ProgramX: 123” question. Show.
- the content filter 54 performs matching processing between the user-side PDI-A and the provider-side PDI-A.
- step S25 the content filter 54 determines whether or not the user side PDI-A matches the provider side PDI-A. If it is determined in step S25 that the user-side PDI-A and the provider-side PDI-A match, the content filter 54 matches the user (viewer) preference of the client 12 for the content distributed from the server 11. The content is determined to be content, the content is supplied to the content reproduction unit 55 or the content storage unit 56, and the process proceeds to step S26.
- the content reproduction unit 55 reproduces the content in step S26.
- the content storage unit 56 stores (records) the content in step S26. The accumulated content is appropriately supplied to the content reproduction unit 55 and reproduced in accordance with a user operation instruction.
- step S25 if it is determined in step S25 that the user-side PDI-A and the provider-side PDI-A do not match, the content filter 54 determines that the content distributed from the server 11 is the preference of the user (viewer) of the client 12 It is determined that the content does not meet the requirements, the content is discarded (deleted), and the process ends.
- the server on the provider side, the server generates a PDI-Q representing a question about the user's preference, and the PDI-Q is transmitted to the client terminal.
- the provider side PDI-A representing the answer set by the provider side is distributed as content metadata of the corresponding content.
- content metadata other than the content metadata defined by the standardization organization can be given to the content as content metadata according to the needs at that time.
- the client terminal On the other hand, on the user side, the client terminal generates a user side PDI-A that represents the user's answer to the PDI-Q from the server, and the generated user side PDI-A and the provider side PDI-A from the server By performing matching, it is determined whether or not to acquire content distributed from the server. As a result, content can be filtered by content metadata according to the needs at that time other than the content metadata defined by the standardization organization. Therefore, it is possible to acquire content according to the needs at that time.
- the client 12 performs PDI-A matching in real time when the content is distributed from the server 11, but when the content is distributed from the server 11, all the content is accumulated.
- PDI-A matching is performed in the background of the process, and the content corresponding to the matched PDI-A (provider side PDI-A) is played or the content corresponding to the unmatched PDI-A Or may be deleted.
- the content filter 54 compares the user side PDI-A expressed as an instance with the provider side PDI-A, and determines whether the user side PDI-A matches even one answer to the question. -A and provider-side PDI-A are matched, but either user-side PDI-A or provider-side PDI-A is expressed as a query that evaluates PDI-A. You may make it compare PDI-A and provider side PDI-A.
- Example 1 of matching process by query that evaluates PDI-A First, a configuration for comparing the user side PDI-A and the provider side PDI-A by expressing the provider side PDI-A as a query will be described.
- FIG. 16 shows a functional configuration example of the server 11 in which the provider side PDI-A is expressed as a query.
- 16 includes a PDI-Q generator 41, a transmission unit 42, a content storage unit 45, a content distributor 46, a PDI-A query generator 111, and a metadata distributor 112.
- the server 11 of FIG. 16 differs from the server 11 of FIG. 3 in that a PDI-A query generator 111 and a metadata distributor 112 are provided in place of the PDI-A generator 43 and the metadata distributor 44. .
- the PDI-A query generator 111 generates PDI-A (provider side PDI-A) corresponding to PDI-Q based on the PDI-Q from the PDI-Q generator 41, and generates the generated provider side PDI-A.
- a PDI-A query applied to a predetermined conditional statement is generated and supplied to the metadata distributor 112.
- the metadata distributor 112 Based on the PDI-A query from the PDI-A query generator 111, the metadata distributor 112 identifies (inquires) the content corresponding to the PDI-A query from the content stored in the content storage unit 45. . The metadata distributor 112 generates content metadata including a PDI-A query as content metadata of the identified content, and transmits the content metadata to the client 12 via the transmission unit 42.
- the content filter 54 of FIG. 4 reads PDI-A (user side PDI-A) from the PDI-A storage unit 53, and is transmitted from the user side PDI-A and the server 11. Since it is the same as the client 12 of FIG. 4 except that the content is filtered based on the PDI-A query included in the received content metadata, the description thereof will be omitted.
- steps S31, S32, S36, S41 to S43, S45, and S46 in the flowchart of FIG. 17 are basically the same as the processes in steps S11, S12, S16, S21 to S23, S25, and S26 in the flowchart of FIG. Since it is the same, the description is omitted.
- the PDI-A query generator 111 of the server 11 generates a provider side PDI-A for the question defined by the PDI-Q from the PDI-Q generator 41, and generates the generated provider side PDI-A.
- a PDI-A query in which is applied to a predetermined conditional statement is generated and supplied to the metadata distributor 112.
- the PDI-A query generator 111 refers to, for example, FIG. 8 to FIG.
- the screen corresponding to the question defined in PDI-Q as explained above is displayed, and the answer to the question is input or selected by the staff of the broadcasting station, and each answer combination (filtering condition) ) Is determined by the staff, and a PDI-A query representing the combination of the answers is generated.
- the staff of the broadcasting station inputs or selects an answer corresponding to the content to be distributed as an answer to the question defined in PDI-Q, and further determines the combination. That is, the PDI-A query generated by the PDI-A query generator 111 is for the provider side to take into account the user (viewer) preference of the client 12 and to allow the viewer to view the content to be distributed later. Information (combination of responses).
- the metadata distributor 112 specifies content corresponding to the PDI-A query from the content stored in the content storage unit 45 based on the PDI-A query from the PDI-A query generator 111.
- the content specified here may be such that the degree of similarity between the PDI-A query from the PDI-A query generator 111 and the content metadata previously given to the stored content is higher than a predetermined value.
- the content may be pre-selected by the broadcast station staff as content that the user wants to view.
- the content specified by the metadata distributor 112 is acquired from the content storage unit 45 by the content distributor 46.
- the metadata distributor 112 includes a PDI-A query based on the content metadata previously given to the content identified in step S34 and the PDI-A query from the PDI-A query generator 111. Create new content metadata.
- step S ⁇ b> 44 the content filter 54 of the client 12 matches the PDI-A stored in the PDI-A storage unit 53 based on the PDI-A query included in the content metadata from the server 11. .
- the user side PDI-A selects “true” as the answer to the “Common: 111” question and “Baseball” as the answer to the “ProviderA: 123” question. It shows that it is evaluated whether or not.
- the content filter 54 evaluates the user side PDI-A based on the PDI-A query, and if the PDI-A query is satisfied (becomes true), the user side PDI-A And the PDI-A query are matched, and if the PDI-A query is not satisfied (false), the user-side PDI-A and PDI-A query match Judge that it is not.
- “true” is selected as the answer to the “Common: 111” question
- “Baseball” is selected as the answer to the “ProviderA: 123” question. Therefore, it is determined that the user-side PDI-A and the PDI-A query match.
- FIG. 18 shows a functional configuration example of the client 12 in which the user side PDI-A is expressed as a query.
- a reception unit 51 includes a reception unit 51, a content filter 54, a content reproduction unit 55, a content storage unit 56, a PDI-A query generator 131, and a PDI-A query storage unit 132.
- the client 12 of FIG. 18 differs from the client 12 of FIG. 4 in that a PDI-A query generator 131 and a PDI-A query storage unit 132 are used instead of the PDI-A generator 52 and the PDI-A storage unit 53. It is a point provided.
- the PDI-A query generator 131 is a PDI-A (user side) that represents a user's answer to a question about the user preference of the client 12 corresponding to the PDI-Q.
- PDI-A is generated, and a PDI-A query in which the generated user-side PDI-A is applied to a predetermined conditional statement is generated and supplied to the PDI-A query storage unit 132.
- the PDI-A query storage unit 132 stores the PDI-A query from the PDI-A query generator 131.
- the PDI-A query stored in the PDI-A query storage unit 132 is read by the content filter 54 as appropriate.
- server 11 in this example is the same as the server 11 in FIG. 3, the description thereof will be omitted.
- steps S51 to S61, S63, S65, and S66 in the flowchart of FIG. 19 are basically the same as the processes in steps S11 to S21, S23, S25, and S26 in the flowchart of FIG. Omitted.
- step S62 the PDI-A query generator 131 of the client 12 generates a user side PDI-A for the question defined by the PDI-Q received by the receiving unit 51, and generates the generated user side PDI-A.
- a PDI-A query in which is applied to a predetermined conditional statement is generated. Specifically, for example, when the PDI-A query generator 131 receives PDI-Q from a broadcasting station, the PDI-A query generator 131 displays a PDI as described with reference to FIGS.
- a PDI-A screen corresponding to the question defined in Q is displayed, and the user (viewer) of the client 12 inputs or selects an answer to the question, and further, the combination of each answer (filtering condition) is selected by the user.
- the PDI-A query generator 131 generates a PDI-A query that represents a combination of answers to the questions defined in PDI-Q by interacting with the user.
- step S64 the content filter 54 matches the provider-side PDI-A included in the content metadata from the server 11 based on the PDI-A query stored in the PDI-A query storage unit 132. .
- provider side PDI-A selects “false” as the answer to the “Common: 111” question and “Baseball” as the answer to the “ProviderA: 123” question. It shows that it is evaluated whether or not.
- the content filter 54 evaluates the provider-side PDI-A based on the PDI-A query. If the provider-side PDI-A satisfies (is true) the PDI-A query, the content-side PDI-A And the PDI-A query are matched, and if the PDI-A query is a provider-side PDI-A that is not satisfied (false), the provider-side PDI-A and the PDI-A query match Judge that it is not. In this case, in the provider side PDI-A shown in FIG.
- the present invention can be applied to a broadcasting system for broadcasting a digital television program.
- an ATSC-M / H Mobile that extends an ATSC (Advanced Television Standard Committee) system to mobile reception is available. / Handheld) can be applied to a broadcasting system for broadcasting.
- FIG. 20 is a diagram illustrating a configuration example of a broadcasting system that broadcasts a digital television program using the conventional ATSC system and ATSC-M / H to which the present invention is applied.
- the server 11 in the broadcasting system 10 of FIG. 1 corresponds to the server 11 in the broadcasting system 10 of FIG. 1, and includes an ATSC Legacy System 151, an ATSC M / H System 152, an M / H Framing 153, and an RF / Transmission System 154.
- the ATSC Legacy System 151 is a conventional ATSC system and transmits a broadcast stream by MPEG2-TS (Moving Picture Experts Group 2 Transport Stream).
- the ATSC M / H System 152 transmits a broadcast stream of IP packets in the ATSC-M / H system.
- Control Data 152a in the ATSC M / H System 152 is control information regarding a broadcast stream (A / V (Audio / Video) content) transmitted from the ATSC M / H System 152.
- Each broadcast stream described above is multiplexed by M / H Framing 153 and transmitted as a broadcast wave by RF / Transmission System 154. Note that the details of the function of each block are described in the ATSC standard, and the description thereof is omitted here.
- FIG. 21 shows a protocol stack in a broadcast wave signal transmitted by the ATSC-M / H system.
- Service Guide defines metadata of content provided by the ATSC-M / H method.
- Control Data 152a shown in FIG. 20 is transmitted as content metadata defined by “Service ⁇ Guide” (hereinafter simply referred to as “Service Guide”). That is, in the broadcasting system of FIG. 20, the PDI-A (provider side PDI-A), the PDI-A query, and the PDI-Q transmitted from the server 11 to the client 12 in the broadcasting system 10 described above are stored in Service Guide. To be sent.
- the lower hierarchy “FLUTE” adjacent to “Service ⁇ Guide ”and the lower hierarchy“ ALC ”adjacent to“ FLUTE ” are packetized by UDP / IP (User Datagram Protocol / Internet Protocol). It is a hierarchy for transferring the service Guide.
- the data structure shown in FIG. 22 is defined by OMA (Open Mobile Alliance).
- OMA Open Mobile Alliance
- the details of the configuration of Service Guide shown in FIG. 22 are defined in ““ Service Guide for Mobile Broadcast Services ”,” Open Mobile Alliance, “OMA-TSBCAST_ServiceGuide-V1_0, Candidate Version 1.0”, and the description thereof is omitted. To do.
- PDI-A (provider side PDI-A) or PDI-A query is one of the “Service” fragment, “Schedule” fragment, and “Content” fragment of the elements constituting Service Guide shown in FIG. It is stored in at least one of them.
- “Service” fragment is metadata including control information related to the contents of the channel service, and FIG. 23 shows details of the configuration.
- the PDI-A or PDI-A query is stored in the “Service” fragment shown in FIG. 23 by adding a “PDI-A” element to the “PrivateExt” element defined at the bottom. Is done.
- the “Schedule” fragment is metadata including control information related to the distribution schedule of content (digital television program), and FIG. 24 shows the details of the configuration.
- the PDI-A or PDI-A query is stored in the “Schedule” fragment shown in FIG. 24 by adding a “PDI-A” element to the “PrivateExt” element defined at the bottom. Is done.
- “Content” fragment is metadata including control information related to the content (digital television program), and FIG. 25 shows the details of the configuration.
- the PDI-A or PDI-A query is stored in the “Content” fragment shown in FIG. 25 by adding a “PDI-A” element to the “PrivateExt” element defined at the bottom. Is done.
- PDI-Q is stored in the “Interactivity Data” fragment among the elements constituting the Service Guide shown in FIG.
- the “Interactivity Data” fragment is metadata about an application related to a channel service or content (television program), and FIG. 26 shows the details of the configuration.
- the PDI-Q is stored in the “Interactivity Data” fragment shown in FIG. 26 by adding a “PDI-Q” element to the “PrivateExt” element defined at the bottom.
- the present invention may also be applied to a broadcasting system that performs NRT (Non-RealTime) broadcasting using the conventional ATSC system. it can.
- NRT broadcasting since it is not presumed that content is viewed in real time, it is not necessary to reproduce the content in synchronization with the broadcast time of the content broadcast by the broadcast signal as data.
- FIG. 27 shows a protocol stack in a broadcast wave signal transmitted by NRT broadcasting.
- the lowest layer is “Physical Layer”, and the frequency band of the broadcast wave corresponds to this.
- the upper layer adjacent to “Physical Layer” is “MPEG2-TS”, and a broadcast stream broadcast as a broadcast wave corresponds to this.
- ATSC-PSIP Program and System Information Protocol
- MPEG2-PSI Program Specific Information
- DSM-CC Digital Storage Media Command Command and Control
- FIG. 28 shows the data structure of TVCT, PAT, PMT, and DSM-CC Addressable Section.
- control information related to a broadcast stream broadcast in MPEG2-TS is described.
- MPEG2 that transfers DSM-CC Addressable Section for transferring an IP packet stream (UDP / IP Packets) -TS is specified.
- IP is shown as the upper layer adjacent to “DSM-CC Addressable Section”
- UDP is shown as the upper layer adjacent to “IP”.
- “Service Signaling Channel” and “FLUTE / ALC (File Delivery over Unidirectional Transport / Asynchronous Layered Coding Protocol)” are shown as upper layers adjacent to “UDP”.
- the “Service Signaling Channel” is a hierarchy having SMT (Service Map Table) and NRT-IT (NRT Information Table).
- SMT Service Map Table
- NRT-IT NRT Information Table
- FLUTE Session is shown as an upper layer adjacent to “FLUTE / ALC”.
- “FLUTE Session” is a hierarchy having FLUTE-FDT (File Delivery Table) and A / V File (A / V file).
- FIG. 29 shows the data structure of SMT, NRT-IT, and FLUTE FDT. Metadata about the channel is described in SMT, and metadata about the content is described in NRT-IT. SMT and NRT-IT are transferred by the above-mentioned “Service Signaling Channel”. In FLUTE FDT, information for identifying each A / V file is described. The A / V file is transferred by “FLUTE / ALC” described above.
- PDI-A provider side PDI-A
- PDI-A query PDI-A query
- the SMT service level descriptordeloop (the bottom row of “Service # 1” in the figure) is set to PDI-A, PDI- A new “PDI descriptor” that stores A queries or PDI-Q is defined.
- the PDI-A and PDI-A queries are placed in the NRT-IT service level descriptordeloop (the bottom row of “Content # 1” in the figure). Or “PDI descriptor” for storing PDI-Q.
- FIG. 30 shows an example of the syntax of “PDI descriptor”.
- each descriptor to be described is defined together with the number of bits (No. of Bits) and a format (Format).
- PDI-A, PDI-A query, or PDI-Q is described in a descriptor “PDI_Q_or PDI_A or PDI_A_Query” which is a variable bit.
- the present invention can also be applied to a broadcasting system that performs NRT broadcasting.
- the present invention may be applied to a broadcast system that broadcasts using the ATSC-M / H system described above, or a broadcast system that broadcasts NRT broadcast using a system other than the line broadcast system.
- the series of processes described above can be executed by hardware or software.
- a program constituting the software may execute various functions by installing a computer incorporated in dedicated hardware or various programs. For example, it is installed from a program recording medium in a general-purpose personal computer or the like.
- a program recording medium that stores a program that is installed in a computer and can be executed by the computer includes a magnetic disk (including a flexible disk), an optical disk (CD-ROM (Compact-Disc-Read-Only Memory), DVD (including Digital Versatile Disc), magneto-optical disk), or removable media 31 which is a package medium made of semiconductor memory, or ROM 22 where programs are temporarily or permanently stored,
- the storage unit 28 is configured by a hard disk or the like.
- the program is stored in the program recording medium using a wired or wireless communication medium such as a local area network, the Internet, or digital satellite broadcasting via a communication unit 29 that is an interface such as a router or a modem as necessary. Done.
- the steps for describing a program are not only processes performed in time series in the order described, but also processes that are executed in parallel or individually even if they are not necessarily processed in time series. Is also included.
- system represents the entire apparatus composed of a plurality of apparatuses.
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Abstract
Description
図1は、本発明の一実施の形態に係る放送システムの構成例を示している。
図2は、サーバ11のハードウェア構成例を表している。図2においては、サーバ11は、例えばコンピュータをベースに構成されている。
次に、図3を参照して、サーバ11の機能構成例について説明する。
次に、図4を参照して、クライアント12の機能構成例について説明する。
次に、図5のフローチャートを参照して、放送システム10におけるコンテンツの送受信処理について説明する。放送システム10におけるコンテンツの送受信処理においては、サーバ11によりコンテンツ配信処理が実行されることでコンテンツが配信され、クライアント12によりコンテンツ取得処理が実行されることでコンテンツが取得される。
ここで、図6を参照して、PDI-QおよびPDI-Aを構成するためのXML(Extensible Markup Language)スキーマのシンタックスの例について説明する。
“common:[category:]question-ID”
と定義される。この第1のフォーマットにおいて、“common”は、そのid要素で識別される質問がプロバイダに関わらず共通に定義された質問であることを表し、“category”は、質問のカテゴリを表し、“question-ID”は、質問の識別子を表している。なお、“category”は、必要に応じて、
“common:[category1:category2:category3:・・・]question-ID”
などのように、階層的なネスト構造としてもよい。
“providerName:[category:]question-ID”
と定義される。この第2のフォーマットにおいて、“providerName”は、そのid要素で識別される質問を設定したプロバイダの名称を表している。なお、“category”および“question-ID”は、第1のフォーマットにおけるそれぞれと同様である。
次に、図7を参照して、図6のシンタックスに基づいて構成されるPDI-Qの例について説明する。
ここで、図8乃至図12を参照して、PDI-Aジェネレータ52によるユーザとの対話における画面表示例について説明する。なお、ここでは、クライアント12は、図7を参照して説明したPDI-Qを受信したものとし、クライアント12の図示せぬ表示部には、受信したPDI-Qで定義されている質問群に対応する画面が、順次表示されるものとする。
ここで、図13を参照して、PDI-Aジェネレータ52によって生成されるPDI-Aの例について説明する。図13で示されるPDI-Aは、図8乃至図12で示した画面表示に対する、ユーザによる回答の選択または入力に基づいて生成されたPDI-Aである。
ここで、ユーザ側PDI-Aとして、図13を参照して説明したPDI-Aが生成され記憶されているものとし、プロバイダ側PDI-Aとして、図14に示されるPDI-Aがサーバ11から送信されてきたものとする。
まずは、プロバイダ側PDI-Aをクエリとして表現することで、ユーザ側PDI-Aとプロバイダ側PDI-Aとを比較する構成について説明する。
“//QBA[id=’Common:111' and a='true'] and //QSA[id='ProviderA:123' and a='Baseball']”
次に、ユーザ側PDI-Aをクエリとして表現することで、ユーザ側PDI-Aとプロバイダ側PDI-Aとを比較する構成について説明する。
“//QBA[id='Common:111' and a='false'] and //QSA[id='ProviderA:123' and a='Baseball']”
図20は、本発明を適用した、従来のATSC方式およびATSC-M/Hのそれぞれでデジタルテレビジョン番組を放送する放送システムの構成例を示す図である。
図27は、NRT放送で送信される放送波の信号におけるプロトコルスタックを示している。
詳細な説明は省略するが、最も下位の階層は、「Physical Layer(物理層)」とされ、放送波の周波数帯域がこれに対応する。「Physical Layer」に隣接する上位の階層は、「MPEG2-TS」とされ、放送波として放送される放送ストリームがこれに対応する。
Claims (12)
- コンテンツをクライアントに配信する送信装置において、
前記クライアントのユーザの嗜好についての質問を表す情報である質問情報を生成する質問生成手段と、
前記質問情報と、前記ユーザの嗜好についての質問に対して、前記コンテンツを提供する提供者によって設定された回答を表す情報である提供者側回答情報とを、前記クライアントに送信する送信手段と
を備える送信装置。 - 前記提供者によって設定された前記回答に対応する前記コンテンツのメタデータとして、前記提供者側回答情報を含む前記メタデータを生成するメタデータ生成手段をさらに備え、
前記送信手段は、前記メタデータを前記クライアントに送信する
請求項1に記載の送信装置。 - 前記提供者によって設定された前記回答の組み合わせを示すクエリを生成するクエリ生成手段をさらに備え、
前記送信手段は、前記クエリを前記クライアントに送信する
請求項1に記載の送信装置。 - 前記提供者側回答情報は、前記提供者によらない質問に対する回答を表す共通回答情報と、前記提供者独自の質問に対する回答を表す独自回答情報とに区別される
請求項1に記載の送信装置。 - コンテンツをクライアントに配信する送信装置の送信方法において、
前記クライアントのユーザの嗜好についての質問を表す情報である質問情報を生成する質問生成ステップと、
前記質問情報と、前記ユーザの嗜好についての質問に対して、前記コンテンツを提供する提供者によって設定された回答を表す情報である提供者側回答情報とを、前記クライアントに送信する送信ステップと
を含む送信方法。 - サーバから配信されるコンテンツを取得する受信装置において、
前記サーバから送信されてくる、ユーザの嗜好についての質問を表す情報である質問情報に対応して、前記質問に対する前記ユーザの回答を表す情報であるユーザ側回答情報を生成する回答生成手段と、
前記ユーザ側回答情報と、前記サーバから送信されてくる、前記質問に対して、前記コンテンツを提供する提供者によって設定された回答を表す情報である提供者側回答情報とのマッチングを行うことで、前記サーバから配信される前記コンテンツの取得を決定するマッチング手段と
を備える受信装置。 - 前記マッチング手段は、前記マッチングを行うことで、前記提供者側回答情報を含むメタデータに対応する前記コンテンツの取得を決定する
請求項6に記載の受信装置。 - 前記マッチング手段は、前記ユーザ側回答情報と、前記サーバから送信されてくる、前記提供者によって設定された前記回答の組み合わせを示すクエリとに基づいて、前記マッチングを行うことで、前記サーバから配信される前記コンテンツの取得を決定する
請求項6に記載の受信装置。 - 前記回答生成手段は、前記ユーザの嗜好についての質問に対する前記ユーザの回答の組み合わせを示すクエリを生成し、
前記マッチング手段は、前記クエリと、前記サーバから送信されてくる前記提供者側回答情報とに基づいて、前記マッチングを行うことで、前記サーバから配信される前記コンテンツの取得を決定する
請求項6に記載の受信装置。 - 前記ユーザ側回答情報および前記提供者側回答情報は、前記提供者によらない質問に対する回答を表す共通回答情報と、前記提供者独自の質問に対する回答を表す独自回答情報とに区別される
請求項6に記載の受信装置。 - サーバから配信されるコンテンツを取得する受信装置の受信方法において、
前記サーバから送信されてくる、ユーザの嗜好についての質問を表す情報である質問情報に対応して、前記質問に対する前記ユーザの回答を表す情報であるユーザ側回答情報を生成する回答生成ステップと、
前記ユーザ側回答情報と、前記サーバから送信されてくる、前記質問に対して、前記コンテンツを提供する提供者によって設定された回答を表す情報である提供者側回答情報とのマッチングを行うことで、前記サーバから配信される前記コンテンツの取得を決定するマッチングステップと
を含む受信方法。 - コンテンツを配信する送信装置と、前記送信装置から配信される前記コンテンツを取得する受信装置とからなる送受信システムにおいて、
前記送信装置は、
前記受信装置のユーザの嗜好についての質問を表す情報である質問情報を生成する質問生成手段と、
前記質問情報と、前記ユーザの嗜好についての質問に対して、前記コンテンツを提供する提供者によって設定された回答を表す情報である提供者側回答情報とを、前記受信装置に送信する送信手段と
を備え、
前記受信装置は、
前記送信装置から送信されてくる前記質問情報に対応して、前記質問に対する前記ユーザの回答を表すユーザ側回答情報を生成する回答生成手段と、
前記ユーザ側回答情報と、前記送信装置から送信されてくる前記提供者側回答情報とのマッチングを行うことで、前記送信装置から配信される前記コンテンツの取得を決定するマッチング手段と
を備える送受信システム。
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US20120054268A1 (en) | 2012-03-01 |
US10244287B2 (en) | 2019-03-26 |
JPWO2012029568A1 (ja) | 2013-10-28 |
JP6022355B2 (ja) | 2016-11-09 |
US9762968B2 (en) | 2017-09-12 |
US20180070142A1 (en) | 2018-03-08 |
EP2613526A1 (en) | 2013-07-10 |
CN103069826B (zh) | 2016-10-26 |
KR20130091749A (ko) | 2013-08-19 |
KR102004966B1 (ko) | 2019-07-29 |
CA2806299A1 (en) | 2012-03-08 |
US20140013347A1 (en) | 2014-01-09 |
EP2613526A4 (en) | 2014-04-23 |
MX2013002075A (es) | 2013-04-03 |
US8892636B2 (en) | 2014-11-18 |
CN103069826A (zh) | 2013-04-24 |
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