WO2011129599A2 - 디스커버리 메타데이터 접근을 위한 방법 및 장치 - Google Patents
디스커버리 메타데이터 접근을 위한 방법 및 장치 Download PDFInfo
- Publication number
- WO2011129599A2 WO2011129599A2 PCT/KR2011/002591 KR2011002591W WO2011129599A2 WO 2011129599 A2 WO2011129599 A2 WO 2011129599A2 KR 2011002591 W KR2011002591 W KR 2011002591W WO 2011129599 A2 WO2011129599 A2 WO 2011129599A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metadata
- scheme
- section
- access
- request message
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- 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]
- H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
- H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
- H04N21/84—Generation or processing of descriptive data, e.g. content descriptors
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
Definitions
- the following embodiments are directed to a method and apparatus for accessing service discovery metadata.
- next generation IPTV a generic protocol for accessing service discovery metadata is disclosed.
- Service discovery metadata allows a user to discover and select an IPTV service or content.
- Discovery metadata is one of the most important issues in all IPTV standards.
- each IPTV standard developed by each standardization body has a different metadata scheme.
- specific protocols are designed to process (eg, access or update) a metadata database of a particular scheme.
- the purpose of the AIT standard is to provide standard and efficient standardized protocols and application programming interfaces (APIs) to enable rapid deployment of the IPTV value chain.
- ITU-T International Telecommunication Union Telecommunication Standardization Sector
- ETSI European Telecommunications Standards Institute
- ATIS Alliance for Telecommunications Industry Solutions
- One embodiment of the present invention may provide an apparatus and method for accessing discovery metadata of different schemes.
- the method comprising: generating an access metadata request message indicating information about a metadata section to be accessed, transmitting the access metadata request message to a description provider device, and the description provider device.
- a metadata retrieval method of a requesting device comprising receiving an access metadata response message including the contents of the metadata section from the terminal and retrieving metadata based on the contents of the metadata section.
- the metadata retrieval method of the requesting device may further include signing the access metadata request message.
- the metadata retrieval method of the requesting device may further include replying to the description provider device in a notification message.
- the metadata retrieval method of the request device may include generating a metadata scheme request message for accessing the metadata, transmitting the metadata scheme request message to the description provider device, and from the description provider device.
- the method may further include receiving a metadata scheme response message indicating whether the metadata scheme is accessible.
- the metadata scheme request message may include a list of all metadata schemes supported by the requesting device and a priority attribute for each scheme of the list.
- the metadata scheme response message is adapted to indicate a metadata scheme selected by the description provider device based on an optimal match between the characteristics of the requesting device and the description provider device. May include a scheme element.
- the metadata scheme response message may include a scheme result element indicating the cause of the failure.
- the access metadata request message includes a scheme name element indicating a type of the metadata scheme, an encoding element indicating an encoding type to be used for the metadata, a requested section element indicating a group of requested sections at a level of a section hierarchy; It may include one or more of the section condition element for conveying the identifier of the requested metadata sections at the level of the section layer.
- the metadata response message may indicate that the metadata request message does not specify a version value of the metadata color line, or that the version value of the metadata section requested by the description provider device is the version value. If it is larger than the value specified in the access metadata request message, it may include the contents of the metadata section.
- the metadata section may be identified by one or more identifiers according to hierarchical levels that divide the metadata section.
- the searching of the metadata based on the contents of the metadata section may include searching for the metadata included in the metadata section element of the access metadata response message, or searching the metadata URL element of the access metadata response message.
- the metadata can be retrieved from the location specified by.
- the method comprising: receiving an access metadata request message indicating information about a metadata section that the requesting device wants to access from a requesting device, an access metadata response message including the metadata section;
- a method of providing metadata of a description provider device is provided, the method including generating and transmitting the access metadata response message to the requesting device.
- the metadata providing method of the description provider device may further include verifying a signature of the access metadata request message.
- the metadata providing method of the description provider device may further include receiving a notification message from the requesting device.
- the metadata providing method of the description provider device may include receiving a metadata scheme request message for accessing metadata from the requesting device, and receiving a metadata scheme response message indicating whether the metadata scheme is accessible.
- the method may further include generating and transmitting the metadata scheme response message to the requesting device.
- the metadata scheme response message is adapted to indicate a metadata scheme selected by the description provider device based on an optimal match between the characteristics of the requesting device and the description provider device. May include a scheme element.
- a control unit for generating an access metadata request message indicating information about a metadata section to be accessed, and searching for metadata based on the contents of the metadata section and the access metadata request
- a requesting device includes an interface portion for sending a message to a description provider device and for receiving an access metadata response message containing the contents of the metadata section from the description provider device.
- Apparatus and methods are provided for accessing discovery metadata of different schemes.
- FIG. 1 illustrates a method of using a protocol to access discovery metadata in an AIT value chain, according to an embodiment of the invention.
- FIG. 2 is a diagram illustrating a representation of metadata sectioning according to an embodiment of the present invention.
- FIG. 3 is a signal flow diagram of a discovery metadata protocol according to an embodiment of the present invention.
- FIG. 4 is a structural diagram of an RD 302 according to an embodiment of the present invention.
- FIG. 5 is a structural diagram of a DPD 304 according to an embodiment of the present invention.
- FIG. 1 illustrates a method of using a protocol to access discovery metadata in an AIT value chain, according to an embodiment of the invention.
- MXM MPEG Extensible Middleware
- the proposed protocol is to allow MPEG AIT devices to access discovery metadata of different schemes.
- the proposed protocol consists of between end-user devices (EUDs) 110, description service provider devices 120 and 130 and IPTV service provider devices 140 and 150. Enable metadata exchange.
- IPTV service provider 140 or 150 can provide a description service
- end-user device 110 may request metadata directly from IPTV service provider 140 or 150.
- the approach used in the proposed protocol can support the modification of future metadata schemes and the addition of new metadata.
- IPTV content provider 160 may provide the content to IPTV service provider 140 or 150.
- IPTV service provider 140 or 150 may provide the content to end-consumer device 110.
- FIG. 2 is a diagram illustrating a representation of metadata sectioning according to an embodiment of the present invention.
- the metadata is divided into sections or subsections (regardless of schema choices).
- Each section is identified by one or more identifiers, depending on the hierarchical level that divides the section.
- each rectangle 210, 220, 230, 240, 250 or 260 represents one section (or subsection).
- the identifier of each section is unique only within its parent section.
- the first metadata section 250 of level-3 is identified by three identifiers A, B and C.
- A denotes a name of a service provider
- B denotes a service type of the corresponding service provider
- C denotes a specific service provided by the corresponding service type.
- the metadata coloring scheme is determined according to a specific IPTV metadata scheme.
- Each section is associated with an attribute "version" used to update or synchronize metadata between players in the IPTV value chain.
- a user may request to access or retrieve only a few sections of metadata (ie metadata associated with a particular provider's broadcast service). Later, if there is a change such as modification / addition of the metadata, the version value of the associated metadata section is increased so that the change can be known.
- metadata ie metadata associated with a particular provider's broadcast service.
- the protocol according to an embodiment of the present invention may support not only an existing metadata scheme but also a metadata scheme to be newly defined in the future.
- protocol uses a general syntax for protocol messages, it uses a classification scheme (CS) to define the coloration / fragmentation structure of the metadata section. Can be represented.
- CS classification scheme
- the protocol message indicates the section to search or use, and the identifier of that section is referenced in the CS.
- the advantage of this approach is that as metadata evolves, it can accommodate evolved metadata by modifying or creating new CSs without changing the protocol syntax.
- FIG. 3 is a signal flow diagram of a discovery metadata protocol according to an embodiment of the present invention.
- the protocol for accessing service discovery metadata is used by the requesting device (RD) to access metadata in another description provider device (DPD).
- the RD 302 may be an End-User Device (EUD) 110 or a DPD.
- EUD End-User Device
- RD 302 and DPD 304 are mutually identifiable. If the RD 302 already knows the metadata schemes supported by the DPD 304, the following operations 310-340 can be omitted.
- the RD 302 In operation 310, the RD 302 generates a metadata scheme request message (eg, an mxm: MetadataSchemeRequest message) for accessing specific metadata.
- a metadata scheme request message eg, an mxm: MetadataSchemeRequest message
- the metadata scheme request message includes a list of all metadata schemes supported by the RD 302 (eg, ITU-T, ETSI or ATIS).
- the metadata scheme request message includes a priority attribute for each scheme of the list.
- the RD 302 optionally signs a metadata scheme request message.
- the RD 302 sends a metadata scheme request message to the DPD 304.
- DPD 304 receives the metadata scheme request message.
- the DPD 304 In operation 330, the DPD 304 generates a metadata scheme response message (eg, an mxm: MetadataSchemeResponse message).
- the metadata scheme response message indicates whether (scheme) access is possible by the result attribute.
- the scheme response message includes an "AdoptedScheme" element.
- AdoptedScheme represents the metadata scheme selected by DPD 304 based on an optimal match between the characteristics of RD 302 and DPD 304.
- the DPD 304 optionally signs a metadata scheme response message.
- the DPD 304 sends a metadata scheme response message to the RD 302.
- the RD 302 has prior knowledge of the metadata scheme provided by the DPD 304, or the operations 310, 315, 320, 330, 335 and 340 described above are executed and the RD 302 is executed. ) Receives an affirmative response from DPD 304, the following operations 350 to 395 are performed.
- the RD 302 In operation 350, the RD 302 generates an access metadata request message (eg, an mxm: AccessMetadataRequest message).
- the access metadata request message indicates information about a metadata section to be accessed.
- the RD 302 optionally signs an access metadata request message.
- the RD 302 sends an access metadata request message to the DPD 304.
- the DPD 304 verifies the digital signature if there is a digital signature in the access metadata request message.
- the DPD 304 can satisfy the request of the access metadata request message, the following operations 370 and 375 are performed.
- the DPD 304 In operation 370, the DPD 304 generates an access metadata response message (eg, an mxm: AccessMetadataResponse) message.
- an access metadata response message eg, an mxm: AccessMetadataResponse
- the version value is not specified in the access metadata request message, or 2) the version value in the database of the DPD 304 of the section requested by the DPD 304 is the access metadata. If greater than the value specified in the request message, the contents of the metadata section requested by the DPD 304 are included in the access metadata response message. Otherwise, the metadata section requested by DPD 304 is not included in the access metadata response message.
- the DPD 304 sends an access metadata response message to the RD 302.
- the DPD 304 In operation 380, the DPD 304 generates a notification message (eg, an mxm: Ack message).
- the notification message conveys information relating to the reason for the failure.
- the DPD 304 sends a notification message to the RD 302.
- the RD 302 optionally returns to the DPD 304 with a notification message.
- the RD 302 retrieves the metadata contained in the "MetadataSection” element, or the meta from the location specified by the "MetadataURL” element of the access metadata response message. retrieve the data.
- Table 1 below shows the definition of an access metadata protocol type (eg, AccessMetadataProtocolType).
- the mxm: AccessMetadataProtocolType complex type defined as shown in Table 1, extends mxmbp: ProtocolType.
- Table 2 below shows the definition of the response element (eg, the mxm: Ack element).
- the response message is used to convey an error message in case of failure or to inform the success of the operation.
- the mxm: Ack message extends the mxmbp: ProtocolResult message by adding a "Result" attribute that indicates whether the approved operation was successful.
- Table 3 shows a definition of a metadata scheme request element (eg, an mxm: MetadataSchemeRequest element).
- the metadata scheme request message is passed from the RD 302 to the DPD 304 to request permission to access some of the discovery metadata present in the DPD 304 database.
- Table 4 shows the definition of the metadata scheme type (eg, mxm: MetadataSchemeType).
- MetadataSchemeType complex type represents a metadata scheme defined in CS (eg, as defined in Table 12 below).
- SchemeName can be any term in the CS.
- EncodingScheme element carries a list of preferred encoding types for the requested metadata.
- a CS defining possible metadata encoding types is provided in Table 16 below.
- Table 5 shows the definition of an encoding scheme type (eg, mxm: EncodingSchemeType).
- Table 6 below shows the definition of the metadata scheme response element (eg, the mxm: MetadataSchemeResponse element).
- the mxm: MetadataSchemeResponse message is passed from DPD 304 to RD 302 in response to mxm: MetadataSchemeRequest.
- the response includes confirmation or denial of the requested service.
- the "Result” attribute is set to true, and the "AdoptedSchemeName” element indicates the “agreed metadata” scheme.
- the "AdoptedEncoding” element indicates the encoding type of the metadata.
- the Result attribute is set to "false” and the "ProtocolResult” element conveys the reason for the failure.
- the "Signature” element can carry the digital signature of the message.
- Table 7 below shows the definition of an access metadata request element (eg, an mxm: AccessMetadataRequest element).
- RD 302 forwards the access metadata request message to DPD 304 to access the metadata.
- An access metadata request (eg, mxm: AccessMetadataRequest) message may carry information as shown in Table 8 below.
- SchemeName element indicates the type of metadata scheme to use for the requested metadata. If the metadata scheme request message and metadata ski response message have already been used to specify the metadata scheme, the SchemeName element is not used. If no metadata scheme request message and metadata scheme response message are used, and the RD 302 has prior knowledge of the metadata scheme supported by the DPD 304, a SchemeName element may be present to indicate the preferred scheme. Can be.
- Encoding indicates the encoding type to be used for the requested metadata. The use of the Encoding element is similar to the use of the SchemeName element.
- RequestedSections The RequestedSection element represents a group of requested sections at the level of the section hierarchy.
- SectionCondition SectionCondition carries the identifiers of the requested metadata sections at the level of the section hierarchy. The following rules apply: 1) Higher level identifiers appear before lower level identifiers. Except for the lowest level, higher level identifiers appear only once. 2)
- the type of metadata section is defined as a "SectionKind (section) that carries the items defined in Discovery CS (eg, Table 13, Table 14, and Table 15). Type) "element. Specific sections of that type are represented by "NumericValue” or “TextualValue” (depending on the type of metadata section as defined in Tables 12-16).
- SectionKind can be "ServiceProvider” and TextualValue can be "www.Provider1.com”. 3) When all sections of a given type are requested, the “Value (Value) "element is not used. 4) To determine the requested section (s), higher level identifiers may be combined with the lowest level identifier.
- Table 9 below is an XML instance.
- the XML instance of Table 9 means that the "BroadcastService” type metadata section (or segment) Nos. 2 and 3 of "Provider1" are requested.
- Table 10 shows a definition (eg, schema of an access metadata response message) of an access metadata response element (eg, an mxm: AccessMetadataResponse element).
- the access metadata response message is sent as a reply to the access metadata request.
- the access metadata response message is used by the DPD 304 to convey the information shown in Table 11 below.
- the RepliedSection element is the element that carries the specific metadata section identified by the SectionCondition element as before, where each level's identifier appears only once. Latest If all requested metadata sections do not need to be returned or updated, the Latest property is set to true and no metadata section is sent. MetadataSection The MetadataSection element contains the metadata section that is passed in the reply message. MetadataURL The MetadataURL element represents a URL for obtaining the requested metadata section. As you can see in the syntax, only one element (MetadataSection or MetadataURL is used to pass the metadata section. dsig: Signature (dsig: signature) The dsig: Signature element represents the digital signature of the message. The dsig: Signature element is an optional value.
- Table 12 shows a classification scheme for a list of service discovery metadata schemes.
- Table 13 below shows a classification scheme for sections of the server discovery metadata of ETSI.
- Table 14 below shows a classification scheme for sections of the server discovery metadata of ATIS.
- Table 15 below shows a classification scheme for sections of the server discovery metadata of the ITU-T.
- Table 16 shows a classification scheme for metadata encoding types.
- FIG. 4 is a structural diagram of an RD 302 according to an embodiment of the present invention.
- the RD 302 includes a controller 410 and an interface unit 420.
- the controller 410 generates a message to be transmitted by the RD 302 and processes the message received by the RD 302. For example, the controller 410 processes the operations 310, 315, 350, 355, and 395.
- the interface unit 420 transmits the generated message to the DPD 304 and receives the message from the DPD 304. For example, interface unit 420 transmits or receives a message of operations 320, 340, 360, 375, 385, and 390.
- FIG. 5 is a structural diagram of a DPD 304 according to an embodiment of the present invention.
- the DPD 304 includes a control unit 510, an interface unit 520, and a storage unit 530.
- the controller 510 generates a message to be transmitted by the DPD 304 and processes the message received by the DPD 304. For example, the controller 510 processes the operations 330, 335, 365, 370 and 380.
- the interface unit 520 transmits the generated message to the RD 302 and receives the message from the RD 302. For example, the interface unit 520 transmits or receives a message of operations 320, 340, 360, 375, 385, and 390.
- the storage 530 provides the controller 510 with data necessary for the processing of the controller 510.
- the storage unit 530 provides the metadata scheme to the controller 510.
- Method according to an embodiment of the present invention can be implemented in the form of program instructions that can be executed by various computer means may be recorded on a computer readable medium.
- the computer readable medium may include program instructions, data files, data structures, and the like, alone or in combination.
- Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts.
- Examples of computer readable recording media include magnetic media such as hard disks, floppy disks and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks such as floppy disks.
- Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.
- the hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
| <complexType name="AccessMetadataProtocolType" abstract="true"> <complexContent> <extension base="mxmbp:ProtocolType"/> </complexContent></complexType> |
| <element name="Ack" type="mxm:AckType"/><complexType name="AckType"> <complexContent> <extension base="mxm:AccessMetadataProtocolType"> <sequence minOccurs="0"> <element ref="mxmbp:ProtocolResult"/> </sequence> <attribute name="Result" type="boolean" use="required"/> </extension> </complexContent></complexType> |
| <!-- Definition of MetadataSchemeRequest --> <element name="MetadataSchemeRequest" type="mxm:MetadataSchemeRequestType"/> <complexType name="MetadataSchemeRequestType"> <complexContent> <extension base="mxm:ProtocolRequestType"> <sequence> <element name="MetadataScheme" type="mxm:MetadataSchemeType" maxOccurs="unbounded"/> </sequence> </extension> </complexContent> </complexType> |
| <complexType name="MetadataSchemeType"> <complexContent> <extension base="mxm:ProtocolBaseType"> <sequence> <element name="SchemeName" type="mpeg7:ControlledTermUseType"/> </sequence> <attribute name="priority" type="int" use="required"/> </extension> </complexContent> </complexType> |
| <complexType name="EncodingSchemeType"> <complexContent> <extension base="mxmbp:ProtocolBaseType"> <sequence> <element name="Encoding" type="mpeg7:ControlledTermUseType"/> </sequence> <attribute name="priority" type="int" use="required"/> </extension> </complexContent></complexType> |
| <element name="MetadataSchemeResponse" type="mxm:MetadataSchemeResponseType"/> <complexType name="MetadataSchemeResponseType"> <complexContent> <extension base="mxm:ProtocolResponseType"> <sequence> <element name="AdoptedSchemeName" type="mpeg7:ControlledTermUseType" minOccurs="0"/> </sequence> </extension> </complexContent> </complexType> |
| <!-- Definition of RequestMetadataRequest --> <element name="RequestMetadataRequest" type="mxm:RequestMetadataRequestType"/> <complexType name="RequestMetadataRequestType"> <complexContent> <extension base="mxm:ProtocolRequestType"> <sequence> <element name="SchemeName" type="mpeg7:ControlledTermUseType" minOccurs="0"/> <choice> <element name="RequestedSection" type="mxm:RequestedSectionType"/> <element name="RequestedFragmentUri" type="anyURI"/> </choice> </sequence> </extension> </complexContent> </complexType> <element name="AccessMetadataRequest" type="mxmamp:AccessMetadataRequestType"/><complexType name="AccessMetadataRequestType"> <complexContent> <extension base="mxmamp:AccessMetadataProtocolType"> <sequence> <element name="SchemeName" type="mpeg7:ControlledTermUseType" minOccurs="0"/> <element name="Encoding" type="mpeg7:ControlledTermUseType" minOccurs="0"/> <element name="RequestedSections" type="mxmamp:RequestedSectionsType" minOccurs="0" maxOccurs="unbounded"/> <element ref="dsig:Signature" minOccurs="0"/> </sequence> </extension> </complexContent></complexType><!-- Definition of RequestedSectionType --> <complexType name="RequestedSectionType"> <complexContent> <extension base="mxm:ProtocolBaseType"> <sequence> <element name="SectionCondition" type="mxm:SectionConditionType" maxOccurs="unbounded"/> </sequence> </extension> </complexContent> </complexType><!-- Definition of SectionConditionType --> <complexType name="SectionConditionType"> <complexContent> <extension base="mxm:ProtocolBaseType"> <sequence> <element name="SectionKind" type="mpeg7:ControlledTermUseType"/> <element name="Identification" type="mxm:IdentificationType" minOccurs="0"/> </sequence> <attribute name="Version" type="int" use="optional"/> </extension> </complexContent> </complexType><complexType name="ValueType"> <complexContent> <extension base="mxmbp:ProtocolBaseType"> <choice> <element name="NumericValue" type="int"/> <element name="TextualValue" type="string"/> </choice> </extension> </complexContent></complexType> |
| 이름 | 설명 |
| SchemeName(스킴 이름) | SchemeName 요소는 요청받은 메타데이터를 위해 사용할 메타데이터 스킴의 타입을 나타낸다.메타데이터 스킴 요청 메시지 및 메타데이터 스키 응답 메시지가 메타데이터 스킴을 정하기 위해 이미 사용된 경우, SchemeName 요소는 사용되지 않는다.그러나, 메타데이터 스킴 요청 메시지 및 메타데이터 스킴 응답 메시지가 사용되지 않고, RD(302)가 DPD(304)에 의해 지원되는 메타데이터 스킴에 대한 사전 지식이 있다면, SchemeName 요소는 선호하는 스킴을 나타내기 위해서 존재할 수 있다. |
| Encoding(인코딩) | Encoding 요소는 요청받은 메타데이터를 위해 사용될 인코딩 타입을 나타낸다.Encoding 요소의 사용은 SchemeName 요소의 사용과 유사하다. |
| RequestedSections(요청된 색션들) | RequestedSection 요소는 색션 계층의 레벨에서 요청받은 색션의 그룹을 나타낸다.RequestedSection 요소의 다른 인스턴스(instance)에 의해 지목당하는 요청받은 색션 그룹들은 중복되지 않아야 한다. |
| SectionCondition(색션 컨디션) | SectionCondition 은 색션 계층의 레벨에서 요청받은 메타데이터 색션들의 식별자를 전달한다. 하기의 규칙들이 적용된다.1) 더 높은 레벨의 식별자는 더 낮은 레벨의 식별자보다 먼저 나타난다. 가장 낮은 레벨을 제외하고, 더 높은 레벨의 식별자는 한 번만 나타난다.2) 메타데이터 색션의 타입은 디스커버리 CS(예컨대, 표 13, 표 14 및 표 15)에서 정의된 항목들을 전달하는 " SectionKind(색션 종류)" 요소에 의해 나타내어진다. 그러한 타입의 특정 색션은 " NumericValue(뉴메릭 값)" 또는 " TextualValue(텍스트 값)"(표 12 내지 표 16에서 정의된 것과 같은 메타데이터 색션의 타입에 따라서)에 의해 나타내어진다. 예컨대, ETSI IPTV를 위한 CS 항목을 사용할 때, SectionKind 는 "ServiceProvider"가 될 수 있고, TextualValue은 "www.Provider1.com"이 될 수 있다.3) 주어진 타입의 모든 색션이 요청될 때, " Value(값)" 요소는 사용되지 않는다.4) 요청받은 색션(들)을 결정하기 위해서, 더 높은 레벨들의 식별자들은 가장 낮은 레벨의 식별자와 결합될 수 있다. |
| <RequestedSections> <SectionCondition> <SectionKind href=" urn:mpeg:ait:2010:DiscoveryCS-NS:2"> <mpeg7:Name>ServiceProvider</mpeg7:Name> </SectionKind> <Value><TextualValue>www.Provider1.com</TextualValue></Value> </SectionCondition> <SectionCondition> <SectionKind href=" urn:mpeg:ait:2010:DiscoveryCS-NS:2.1"> <mpeg7:Name>BroadcastService</mpeg7:Name> </SectionKind> <Value><NumericValue>2</NumericValue></Value> </SectionCondition> <SectionCondition> <SectionKind href=" urn:mpeg:ait:2010:DiscoveryCS-NS:2.1"> <mpeg7:Name>BroadcastService</mpeg7:Name> </SectionKind> <Value><NumericValue>3</NumericValue></Value> </SectionCondition><RequestedSections> |
| <element name="AccessMetadataResponse" type="mxmaitp:AccessMetadataResponseType"/><complexType name="AccessMetadataResponseType"> <complexContent> <extension base="mxm:AccessMetadataProtocolType"> <sequence> <element name="RepliedSection" type="mxm:RepliedSectionType" minOccurs="0" maxOccurs="unbounded"/> <element ref="dsig:Signature" minOccurs="0"/> </sequence> <attribute name="Latest" type="boolean" use="optional"/> </extension> </complexContent></complexType><complexType name="RepliedSectionType"> <complexContent> <extension base="mxmbp:ProtocolBaseType"> <sequence> <element name="SectionCondition" type="mxm:SectionConditionType" maxOccurs="unbounded"/> <choice> <element name="MetadataSection"> <complexType> <sequence> <any namespace="##any" processContents="skip"/> </sequence> </complexType> </element> <element name="MetadataURL" type="anyURI"/> </choice> </sequence> </extension> </complexContent></complexType> |
| 이름 | 설명 |
| RepliedSection (리플라이된 색션) | RepliedSection 요소는 이전처럼 SectionCondition 요소에 의해 식별되는 특정 메타데이터 색션을 전달하는 요소임.이 때, 각 레벨의 식별자는 한 번만 나타난다. |
| Latest(최신) | 모든 요청받은 메타데이터 색션이 회신 또는 업데이트될 필요가 없을 경우 Latest 속성은 true로 설정되고, 어떠한 메타데이터 색션도 보내지지 않는다. |
| MetadataSection(메타데이터 색션) | MetadataSection 요소는 회신 메시지에 전달되는 메타데이터 색션을 포함한다. |
| MetadataURL(메타데이터 URL) | MetadataURL 요소는 요청받은 메타데이터 색션을 얻기 위한 URL을 나타낸다. 신택스에서 볼 수 있듯이, 한 개의 요소(MetadataSection 또는 MetadataURL 만이 메타데이터 색션을 전달하기 위해 사용된다. |
| dsig:Signature (dsig:서명) | dsig:Signature 요소는 메시지의 디지털 서명을 나타낸다. dsig:Signature 요소는 선택적인 값이다. |
| <ClassificationScheme uri="urn:mpeg:ait:2010:DiscoveryMetadataSchemesCS-NS" > <Term termed="1"> <Name xml:lang="en">ETSI-Service-Discovery</Name> <Definition xml:lang="en"> Indicates the metadata scheme of ETSI IPTV for service discovery. </Definition> </Term> <Term termed="2"> <Name xml:lang="en">ATIS-Service-Discovery</Name> <Definition xml:lang="en"> Indicates the metadata scheme of ATIS IPTV for service discovery. </Definition> </Term> <Term termed="3"> <Name xml:lang="en">ITUT-Service-Discovery</Name> <Definition xml:lang="en"> Indicates the metadata scheme of ITU-T IPTV for service discovery. </Definition> </Term></ClassificationScheme> |
| <ClassificationScheme uri="urn:mpeg:ait:2010:ETSIDiscoveryCS-NS"> <Term termId="1"> <Name xml:lang="en">ServiceProviderDiscovery</Name> <Definition xml:lang="en"> Indicates the metadata for service provider discovery information (payload ID 0x01). Metadata of this type could be divided into sections, identified by numeric values. </Definition> </Term> <Term termId="2"> <Name xml:lang="en">ServiceProvider</Name> <Definition xml:lang="en"> Indicates all service discovery metadata of an IPTV Service Provider. Different service providers are differentiated by their domain names (i.e. textual values). </Definition> <Term termId="2.1"> <Name xml:lang="en">BroadcastService</Name> <Definition xml:lang="en"> Indicates metadata for broadcast service discovery of an IPTV Service Provider (payload ID 0x02). Metadata of this type could be divided into sections, identified by numeric values. </Definition> </Term> <Term termId="2.2"> <Name xml:lang="en">CoDService</Name> <Definition xml:lang="en"> Indicates metadata for Content-on-Demand service discovery of an IPTV Service Provider (payload ID 0x03). Metadata of this type could be divided into sections, identified by numeric values. </Definition> </Term> <Term termId="2.3"> <Name xml:lang="en">ServicesFromOtherSP</Name> <Definition xml:lang="en"> Indicates metadata for referenced service discovery at an IPTV Service Provider (payload ID 0x04). Metadata of this type could be divided into sections, identified by numeric values. </Definition> </Term> <Term termId="2.4"> <Name xml:lang="en">PackageService</Name> <Definition xml:lang="en"> Indicates metadata for package service discovery of an IPTV Service Provider (payload ID 0x05). Metadata of this type could be divided into sections, identified by numeric values. </Definition> </Term> <Term termId="2.5"> <Name xml:lang="en">BCGService</Name> <Definition xml:lang="en"> Indicates metadata for BCG (Broadband Content Guide) service discovery of an IPTV Service Provider (payload ID 0x06). Metadata of this type could be divided into sections, identified by numeric values. Note: BCG metadata will have its own classification scheme. </Definition> </Term> </Term></ClassificationScheme> |
| <ClassificationScheme uri="urn:mpeg:ait:2010:ATISDiscoveryCS-NS"> <Term termId="1"> <Name xml:lang="en">ServiceProviderInfo</Name> <Definition xml:lang="en">Indicates a metadata record of ATIS IIF ServiceProviderInfoType which provides information about different IPTV service providers</Definition> </Term> <Term termId="2"> <Name xml:lang="en">ServiceProvider</Name> <Definition xml:lang="en">Indicates all service discovery metadata of an IPTV Service Provider</Definition> <Term termId="2.1"> <Name xml:lang="en">ProvisioningInfo</Name> <Definition xml:lang="en">Indicates a metadata record of ATIS IIF ProvisioningInfoType which provides provisioning information from an IPTV service provider</Definition> </Term> <Term termId="2.2"> <Name xml:lang="en">Master SI Table</Name> <Definition xml:lang="en"> Indicates a metadata record of ATIS IIF MasterSiTableType which is a list of virtual channel map tables of a given service provider.</Definition> </Term> <Term termId="2.3"> <Name xml:lang="en">Virtual Channel Map</Name> <Definition xml:lang="en">Indicates a metadata record of ATIS IIF VirtualChannelMapType which is a list of virtual channels. Each record is identified by a textual string representing the URI of the record</Definition> </Term> <Term termId="2.4"> <Name xml:lang="en">Virtual Channel Description</Name> <Definition xml:lang="en"> Indicates a metadata record of ATIS IIF VirtualChannelDescriptionType which is a description of virtual channels. Each record is identified by a textual string representing the URI of the record</Definition> </Term> <Term termId="2.5"> <Name xml:lang="en">Source</Name> <Definition xml:lang="en"> Indicates a metadata record of ATIS IIF SourceType which shows acquisition information for virtual channels. Each record is identified by a textual string representing the URI of the record </Definition> </Term> <Term termId="2.6"> <Name xml:lang="en">EPGInfo</Name> <Definition xml:lang="en"> Indicates all metadata for electronic program guide. Note: EPG metadata will have its own classification scheme. </Definition> </Term></ClassificationScheme> |
| <ClassificationScheme uri="urn:mpeg:ait:2010:ITUTDiscoveryCS-NS"> <Term termed="1"> <Name xml:lang="en">ITUT</Name> <Definition xml:lang="en"> This CS will be described once the schema of ITU-T IPTV service discovery is completed. </Definition> </Term></ClassificationScheme> |
| <ClassificationScheme uri="urn:mpeg:ait:2010:DiscoveryMetadataSchemesCS-NS" > <Term termed="1"> <Name xml:lang="en">ETSI-Service-Discovery</Name> <Definition xml:lang="en"> Indicates the metadata scheme of ETSI IPTV for service discovery. </Definition> </Term> <Term termed="2"> <Name xml:lang="en">ATIS-Service-Discovery</Name> <Definition xml:lang="en"> Indicates the metadata scheme of ATIS IPTV for service discovery. </Definition> </Term> <Term termed="3"> <Name xml:lang="en">ITUT-Service-Discovery</Name> <Definition xml:lang="en"> Indicates the metadata scheme of ITU-T IPTV for service discovery. </Definition> </Term></ClassificationScheme> |
Claims (20)
- 접근하고자 하는 메타데이터 색션에 대한 정보를 나타내는 접근 메타데이터 요청 메시지를 생성하는 동작;상기 접근 메타데이터 요청 메시지를 디스크립션 프로바이더 디바이스에게 전송하는 동작;상기 디스크립션 프로바이더 디바이스로부터 상기 메타데이터 색션의 내용을 포함하는 접근 메타데이터 응답 메시지를 수신하는 동작; 및상기 메타데이터 색션의 내용에 기반하여 메타데이터를 검색하는 동작를 포함하는, 요청 디바이스의 메타데이터 검색 방법.
- 제1항에 있어서,상기 접근 메타데이터 요청 메시지에 서명하는 동작를 더 포함하는, 요청 디바이스의 메타데이터 검색 방법.
- 제1항에 있어서,알림 메시지로 상기 디스크립션 프로바이더 디바이스에게 회신하는 동작를 더 포함하는, 요청 디바이스의 메타데이터 검색 방법.
- 제1항에 있어서,상기 메타데이터에 접근하기 위한 메타데이터 스킴 요청 메시지를 생성하는 동작;상기 메타데이터 스킴 요청 메시지를 상기 디스크립션 프로바이더 디바이스에게 전송하는 동작; 및상기 디스크립션 프로바이더 디바이스로부터 상기 메타데이터의 스킴에 접근 가능한지 여부를 나타내는 메타데이터 스킴 응답 메시지를 수신하는 동작를 더 포함하는, 요청 디바이스의 메타데이터 검색 방법.
- 제4항에 있어서,상기 메타데이터 스킴 요청 메시지는 상기 요청 디바이스에 의해 지원되는 모든 메타데이트 스킴의 리스트 및 상기 리스트의 각 스킴을 위한 우선순위 속성을 포함하는, 요청 디바이스의 메타데이터 검색 방법.
- 제4항에 있어서,상기 메타데이터의 스킴의 접근이 가능한 경우, 상기 메타데이터 스킴 응답 메시지는 상기 요청 디바이스 및 상기 디스크립션 프로바이더 디바이스의 특성들 간의 최적의 매치에 기반하여 상기 디스크립션 프로바이더 디바이스가 선택한 메타데이터 스킴을 나타내는 채택된 스킴 요소를 포함하는, 요청 디바이스의 메타데이터 검색 방법.
- 제4항에 있어서,상기 메타데이터의 스킴의 접근이 가능하지 않은 경우, 상기 메타데이터 스킴 응답 메시지는 실패의 원인을 나타내는 스킴 결과 요소를 포함하는, 요청 디바이스의 메타데이터 검색 방법.
- 제4항에 있어서,상기 접근 메타데이터 요청 메시지는 상기 메타데이터 스킴의 타입을 나타내는 스킴 이름 요소, 상기 메타데이터를 위해 사용될 인코딩 타입을 나타내는 인코딩 요소, 색션 계층의 레벨에서 요청받은 색션의 그룹을 나타내는 요청된 색션들 요소 및 상기 색션 계층의 레벨에서 요청받은 메타데이터 색션들의 식별자를 전달하는 색션 컨디션 요소 중 하나 이상을 포함하는, 요청 디바이스의 메타데이터 검색 방법.
- 제1항에 있어서,상기 메타데이터 응답 메시지는 상기 메타데이터 요청 메시지가 상기 메타데이터 색선의 버전 값을 명시하지 않은 경우나, 상기 디스크립션 프로바이더 디바이스가 요청받은 상기 메타데이터 색션의 상기 디스크립션 프로바이더 디바이스에 있는 버전 값이 상기 접근 메타데이터 요청 메시지에서 명시된 값보다 더 큰 경우에 상기 메타데이터 색션의 내용을 포함하는, 요청 디바이스의 메타데이터 검색 방법.
- 제1항에 있어서,상기 메타데이터 색션은 상기 메타데이터 색션을 나누는 계층 수준에 따른 한 개 이상의 식별자에 의해 식별되는, 요청 디바이스의 메타데이터 검색 방법.
- 제1항에 있어서,상기 메타데이터 색션의 내용에 기반하여 메타데이터를 검색하는 동작은,상기 접근 메타데이터 응답 메시지의 매타데이터 색션 요소에 포함된 상기 메타데이터를 검색하거나, 상기 접근 메타데이터 응답 메시지의 메타데이터 URL 요소에 의해 명시된 위치로부터 상기 메타데이터를 검색하는, 요청 디바이스의 메타데이터 검색 방법.
- 요청 디바이스로부터 상기 요청 디바이스가 접근하고자 하는 메타데이터 색션에 대한 정보를 나타내는 접근 메타데이터 요청 메시지를 수신하는 동작;상기 메타데이터 색션을 포함하는 접근 메타데이터 응답 메시지를 생성하는 동작; 및상기 접근 메타데이터 응답 메시지를 상기 요청 디바이스로 전송하는 동작를 포함하는, 디스크립션 프로바이더 디바이스의 메타데이터 제공 방법.
- 제12항에 있어서,상기 접근 메타데이터 요청 메시지의 서명을 확인하는 동작를 더 포함하는, 디스크립션 프로바이더 디바이스의 메타데이터 제공 방법.
- 제12항에 있어서,상기 요청 디바이스로부터 알림 메시지를 수신하는 동작를 더 포함하는, 디스크립션 프로바이더 디바이스의 메타데이터 제공 방법.
- 제12항에 있어서,상기 요청 디바이스로부터 메타데이터에 접근하기 위한 메타데이터 스킴 요청 메시지를 수신하는 동작;상기 메타데이터의 스킴의 접근이 가능한지 여부를 나타내는 메타데이터 스킴 응답 메시지를 생성하는 동작; 및상기 메타데이터 스킴 응답 메시지를 상기 요청 디바이스로 전송하는 동작를 더 포함하는, 디스크립션 프로바이더 디바이스의 메타데이터 제공 방법.
- 제15항에 있어서,상기 메타데이터의 스킴의 접근이 가능한 경우, 상기 메타데이터 스킴 응답 메시지는 상기 요청 디바이스 및 상기 디스크립션 프로바이더 디바이스의 특성들 간의 최적의 매치에 기반하여 상기 디스크립션 프로바이더 디바이스가 선택한 메타데이터 스킴을 나타내는 채택된 스킴 요소를 포함하는, 디스크립션 프로바이더 디바이스의 메타데이터 제공 방법.
- 제15항에 있어서,상기 메타데이터의 스킴의 접근이 가능하지 않은 경우, 상기 메타데이터 스킴 응답 메시지는 실패의 원인을 나타내는 스킴 결과 요소를 포함하는, 디스크립션 프로바이더 디바이스의 메타데이터 제공 방법.
- 제12항에 있어서,상기 메타데이터 응답 메시지는 상기 메타데이터 요청 메시지가 상기 메타데이터 색선의 버전 값을 명시하지 않은 경우나, 상기 디스크립션 프로바이더 디바이스가 요청받은 상기 메타데이터 색션의 상기 디스크립션 프로바이더 디바이스에 있는 버전 값이 상기 접근 메타데이터 요청 메시지에서 명시된 값보다 더 큰 경우에 상기 메타데이터 색션의 내용을 포함하는, 디스크립션 프로바이더 디바이스의 메타데이터 제공 방법.
- 제10항에 있어서,상기 메타데이터 색션은 상기 메타데이터 색션을 나누는 계층 수준에 따른 한 개 이상의 식별자에 의해 식별되는, 디스크립션 프로바이더 디바이스의 메타데이터 제공 방법.
- 접근하고자 하는 메타데이터 색션에 대한 정보를 나타내는 접근 메타데이터 요청 메시지를 생성하고, 상기 메타데이터 색션의 내용에 기반하여 메타데이터를 검색하는 제어부; 및상기 접근 메타데이터 요청 메시지를 디스크립션 프로바이더 디바이스에게 전송하고, 상기 디스크립션 프로바이더 디바이스로부터 상기 메타데이터 색션의 내용을 포함하는 접근 메타데이터 응답 메시지를 수신하는 인터페이스부를 포함하는, 요청 디바이스.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/641,059 US20130198790A1 (en) | 2010-04-12 | 2011-04-12 | Method and apparatus for accessing service discovery metadata |
| CN2011800187351A CN102845073A (zh) | 2010-04-12 | 2011-04-12 | 用于存取发现元数据的方法及装置 |
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32294310P | 2010-04-12 | 2010-04-12 | |
| US32294510P | 2010-04-12 | 2010-04-12 | |
| US61/322,945 | 2010-04-12 | ||
| US61/322,943 | 2010-04-12 | ||
| US32343610P | 2010-04-13 | 2010-04-13 | |
| US61/323,436 | 2010-04-13 | ||
| KR1020110024750A KR101199703B1 (ko) | 2010-04-12 | 2011-03-21 | 디스커버리 메타데이터 접근을 위한 방법 및 장치 |
| KR10-2011-0024750 | 2011-03-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2011129599A2 true WO2011129599A2 (ko) | 2011-10-20 |
| WO2011129599A3 WO2011129599A3 (ko) | 2012-01-26 |
Family
ID=44799165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2011/002591 Ceased WO2011129599A2 (ko) | 2010-04-12 | 2011-04-12 | 디스커버리 메타데이터 접근을 위한 방법 및 장치 |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2011129599A2 (ko) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100864839B1 (ko) * | 2007-09-10 | 2008-10-23 | 한국전자통신연구원 | RSS로부터 수집한 TV-Anytime 메타데이터기반 뉴스 패키지 서비스 |
| KR101531166B1 (ko) * | 2007-11-27 | 2015-06-25 | 삼성전자주식회사 | Sip 프로토콜을 이용한 iptv 서비스 제공자 및 iptv 서비스 검색 방법 및 장치 |
| EP2242266A4 (en) * | 2008-02-05 | 2014-04-02 | Samsung Electronics Co Ltd | A method and device for sending and receiving metadata for an application providing an iptv service |
-
2011
- 2011-04-12 WO PCT/KR2011/002591 patent/WO2011129599A2/ko not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011129599A3 (ko) | 2012-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2011108893A2 (en) | Method and apparatus for generating and reproducing adaptive stream based on file format, and recording medium thereof | |
| WO2012099400A2 (en) | Apparatus and method for storing and playing content in a multimedia streaming system | |
| WO2012002776A2 (en) | Apparatus and method for controlling access to multiple services | |
| WO2011071309A2 (en) | Method and apparatus for sharing comments regarding content | |
| WO2009096686A2 (ko) | 컨텐츠 공유 서비스 제공 방법 및 그 장치 | |
| WO2011108908A2 (en) | Method and apparatus for transmitting and receiving a content file including multiple streams | |
| WO2012047064A2 (ko) | Drm 서비스 제공 방법 및 장치 | |
| WO2013165083A1 (ko) | 이미지에 기반하여 동영상 서비스를 제공하는 시스템 및 방법 | |
| WO2012060669A1 (ko) | Sms를 통해 원격 디바이스를 제어하는 방법 및 이를 위한 장치 | |
| WO2010082782A2 (en) | Rich media-enabled service guide provision method and system for broadcast service | |
| WO2010147362A2 (en) | Widget activation and communication method | |
| WO2012047074A2 (en) | Methods and apparatus for obtaining a service | |
| WO2011159093A2 (en) | Hybrid delivery mechanism in a multimedia transmission system | |
| EP2279571A2 (en) | Method and apparatus for sending and receiving broadcast service in a digital broadcasting system | |
| WO2013024966A1 (ko) | 콘텐트 수신 방법 및 장치 | |
| WO2015160221A1 (en) | Method and apparatus for providing information related to content supporting broadcast service | |
| WO2010143855A2 (ko) | 원격 사용자 인터페이스 제공 방법 및 그 장치 | |
| EP2344951A2 (en) | Conditional processing method and apparatus | |
| EP2301174A2 (en) | Method and apparatus for providing rich media service | |
| WO2010008196A2 (ko) | 구조화된 정보의 장면 표시 장치 및 그 방법 | |
| WO2009154390A2 (en) | Method for providing channel service and computer-readable medium having thereon program performing function embodying the same | |
| WO2011129623A2 (ko) | 방송 네트워크로 위젯 스트리밍 서비스를 제공하는 방법 및 이를 위한 장치 | |
| WO2011129599A2 (ko) | 디스커버리 메타데이터 접근을 위한 방법 및 장치 | |
| WO2010062096A2 (en) | Method and apparatus for reproducing content by using metadata | |
| WO2010110605A2 (ko) | Iptv 수신기 및 그의 컨텐트 다운로드 방법 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 201180018735.1 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11769065 Country of ref document: EP Kind code of ref document: A2 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 13641059 Country of ref document: US |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 11769065 Country of ref document: EP Kind code of ref document: A2 |