Pmcp Extension Metadata, Data Stream Generating Device, Digital Data Broadcasting Emission System and Digital Data Broadcasting Emission Method Thereof

• US 20080235723A1
• Filed: 08/22/2006
• Published: 09/25/2008
• Est. Priority Date: 08/22/2005
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Hong, Jin-Woo, Kim, Yong-Ho, Park, Min-Sik
• Granted Patent: US 8,239,895 B2
• Time in Patent Office: Days
• US Class Current: 725/32
• CPC Class Codes: H04H 60/73 using meta-information
• CPC Class Codes: H04N 21/235 Processing of additional data, e.g. scrambling of additional data or processing content descriptors
• CPC Class Codes: H04N 21/26283 for associating distribution time parameters to content, e.g. to generate electronic program guide data
• CPC Class Codes: H04N 21/435 Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
• CPC Class Codes: H04N 21/84 Generation or processing of descriptive data, e.g. content descriptors systems specially adapted for using meta-information in broadcast systems H04H60/73

Abstract

Provided are a PMCP extended metadata for securing interoperability among devices constituting a digital data broadcasting emitting system, a data stream generating device using the same, a digital data broadcasting emitting system and a digital data broadcasting emitting method. The PMCP extended metadata includes: a channel metadata for providing system information of data events constituting a data broadcasting program; a program and system information protocol (PSIP) data event metadata for providing identification information and program guide of data events; and an advanced television system committee (ACAP) data service metadata for providing encoding information including signaling information and transmission protocol information of data broadcasting contents corresponding to data events.

Claims

1-28. -28. (canceled)

29. A computer readable medium recoded an extended metadata, the extended metadata comprising:

a data event metadata comprising program guide information of data events constituting a data broadcasting; and

a data service metadata comprising encoding information and signaling information for the data broadcasting.

30. The computer readable medium as recited in claim 29, wherein the data event metadata is defined in a program and system information protocol (PSIP),

and the program guide information is updated according to a change of contents of the data broadcasting.

31. The computer readable medium as recited in claim 30, wherein the program guide information comprises event identification information of the data events, content identification information of the data events, title information of the data events expressed in multi-language, supplementary information of the data events, receiving information of the data broadcasting and Data Event Table (DET) information.

32. The computer readable medium as recited in claim 31, wherein the data service metadata is defined in an advanced common application platform (ACAP),

the data service metadata further comprises the content identification information of the data events, and

the encoding information comprises a data carousel including a Download Server Initiate (DSI) message, a Download Info Indication (DII) message and a Packet Identifier (PID) and a object carousel including a service gateway message, a directory message, a file message, a stream message and a stream event message, and

the signaling information comprises Application Information Table (AIT) signaling information including information for describing characteristics of an application and identifying the application, information for describing a transmit protocol, location information of the Download Info Indication (DII) and Application Information Table (AIT) information.

33. The computer readable medium as recited in claim 32, wherein the extended metadata is defined in a program metadata communication protocol (PMCP), and

the extended metadata further comprises a channel metadata for describing a virtual channel including Program Map Table (PMT) information, wherein the Program Map Table (PMT) information includes an identifier metadata of the object carousel, an application signaling metadata, an identifier metadata of the data broadcasting, a stream identifier metadata, an association tag metadata and a Program Map Table (PMT) descriptor metadata.

34. The computer readable medium as recited in claim 29, wherein the encoding information comprises information for encapsulation.

35. A method for generating data stream, comprising the steps of:

acquiring a program guide information, encoding information and signaling information from an extended metadata, wherein the extended metadata comprises a data event metadata comprising the program guide information of data events constituting a data broadcasting and a data service metadata comprising the encoding information and the signaling information for the data broadcasting; and

generating the data stream by encoding data broadcasting contents which fits to the program guide of the data events according to the encoding information and the signaling information.

36. The method as recited in claim 35, wherein the data event metadata is defined in a program and system information protocol (PSIP),

and the program guide information is updated according to a change of contents of the data broadcasting.

37. The method as recited in claim 36, wherein the program guide information comprises event identification information of the data events, content identification information of the data events, title information of the data events expressed in multi-language, supplementary information of the data events, receiving information of the data broadcasting and Data Event Table (DET) information.

38. The method as recited in claim 37, wherein the data service metadata is defined in an advanced common application-platform (ACAP),

the data service metadata further comprises the content identification information of the data events, and

the encoding information comprises a data carousel including a Download Server Initiate (DSI) message, a Download Info Indication (DII) message and a Packet Identifier (PID) and a object carousel including a service gateway message, a directory message, a file message, a stream message and a stream event message, and

the signaling information comprises Application Information Table (AIT) signaling information including Information for describing characteristics of an application and identifying the application, information for describing a transmit protocol, location information of the Download Info Indication (DII) and Application Information Table (AIT) information.

39. The method as recited in claim 38, wherein the extended metadata is defined in a program metadata communication protocol (PMCP), and

the extended metadata further comprises a channel metadata for describing a virtual channel including Program Map Table (PMT) information, wherein the Program Map Table (PMT) information includes an identifier metadata of the object carousel, an application signaling metadata, an identifier metadata of the data broadcasting, a stream identifier metadata, an association tag metadata and a Program Map Table (PMT) descriptor metadata.

40. The method as recited in claim 35, wherein the encoding information comprises information for encapsulation.

41. An apparatus for generating data stream, comprising:

an acquiring unit for acquiring a program guide information, encoding information and signaling information from an extended metadata, wherein the extended metadata comprises a data event metadata comprising the program guide information of data events constituting a data broadcasting and a data service metadata comprising the encoding information and the signaling information for the data broadcasting; and

a generating unit for generating the data stream by encoding data broadcasting contents which fits to the program guide of the data events according to the encoding information and the signaling information.

42. The apparatus as recited in claim 41, wherein the data event metadata is defined in a program and system information protocol (PSIP),

and the program guide information is updated according to a change of contents of the data broadcasting.

43. The apparatus as recited in claim 42, wherein the program guide information comprises event identification information of the data events, content identification information of the data events, title information of the data events expressed in multi-language, supplementary information of the data events, receiving information of the data broadcasting and Data Event Table (DET) information.

44. The apparatus as recited in claim 43, wherein the data service metadata is defined in an advanced common application platform (ACAP),

the data service metadata further comprises the content identification information of the data events, and

the encoding information comprises a data carousel including a Download Server Initiate (DSI) message, a Download Info Indication (DII) message and a Packet Identifier (PID) and a object carousel including a service gateway message, a directory message, a file message, a stream message and a stream event message, and

the signaling information comprises Application Information Table (AIT) signaling information including information for describing characteristics of an application and identifying the application, information for describing a transmit protocol, location information of the Download Info Indication (DII) and Application Information Table (AIT) information.

45. The apparatus as recited in claim 44, wherein the extended metadata is defined in a program metadata communication protocol (PMCP), and

the extended metadata further comprises a channel metadata for describing a virtual channel including Program Map Table (PMT) information, wherein the Program Map Table (PMT) information includes an identifier metadata of the object carousel, an application signaling metadata, an identifier metadata of the data broadcasting, a stream identifier metadata, an association tag metadata and a Program Map Table (PMT) descriptor metadata.

46. The apparatus as recited in claim 41, wherein the encoding information comprises information for encapsulation.

47. A method for receiving data stream, comprising the steps of:

receiving a data stream generated by encoding data broadcasting contents which fits to a program guide of a data events according to encoding information and signaling information, wherein the program guide information, the encoding information and the signaling information are acquired from an extended metadata, wherein the extended metadata comprises a data event metadata comprising the program guide information of the data events constituting the data broadcasting and a data service metadata comprising the encoding information and the signaling information for the data broadcasting; and

decoding the data stream.

48. The method as recited in claim 47, wherein the data event metadata is defined in a program and system information protocol (PSIP), and the program guide information is updated according to a change of contents of the data broadcasting.

49. The method as recited in claim 48, wherein the program guide information comprises event identification information of the data events, content identification information of the data events, title information of the data events expressed in multi-language, supplementary information of the data events, receiving information of the data broadcasting and Data Event Table (DET) information.

50. The method as recited in claim 49, wherein the data service metadata is defined in an advanced common application platform (ACAP),

the data service metadata further comprises the content Identification information of the data events, and

the encoding information comprises a data carousel including a Download Server Initiate (DSI) message, a Download Info Indication (DII) message and a Packet Identifier (PID) and a object carousel including a service gateway message, a directory message, a file message, a stream message and a stream event message, and

the signaling information comprises Application Information Table (AIT) signaling information including information for describing characteristics of an application and identifying the application, information for describing a transmit protocol, location information of the Download Info Indication (DII) and Application Information Table (AIT) information.

51. The method as recited in claim 50, wherein the extended metadata is defined in a program metadata communication protocol (PMCP), and

the extended metadata further comprises a channel metadata for describing a virtual channel including Program Map Table (PMT) information, wherein the Program Map Table (PMT) information Includes an identifier metadata of the object carousel, an application signaling metadata, an identifier metadata of the data broadcasting, a stream identifier metadata, an association tag metadata and a Program Map Table (PMT) descriptor metadata.

52. The method as recited in claim 47, wherein the encoding information comprises information for encapsulation.

53. An apparatus for receiving data stream, comprising:

a receiving unit for receiving a data stream generated by encoding data broadcasting contents which fits to a program guide of a data events according to encoding information and signaling information, wherein the program guide information, the encoding information and the signaling information are acquired from an extended metadata, wherein the extended metadata comprises a data event metadata comprising the program guide information of the data events constituting the data broadcasting and a data service metadata comprising the encoding information and the signaling information for the data broadcasting; and

a decoding unit for decoding the data stream.

54. The apparatus as recited in claim 53, wherein the data event metadata is defined in a program and system information protocol (PSIP), and the program guide information is updated according to a change of contents of the data broadcasting.

55. The apparatus as recited in claim 54, wherein the program guide information comprises event identification information of the data events, content identification information of the data events, title information of the data events expressed in multi-language, supplementary information of the data events, receiving information of the data broadcasting and Data Event Table (DET) information.

56. The apparatus as recited in claim 55, wherein the data service metadata is defined in an advanced common application platform (ACAP),

the data service metadata further comprises the content identification information of the data events, and

the encoding information comprises a data carousel including a Download Server Initiate (DSI) message, a Download Info Indication (DII) message and a Packet Identifier (PID) and a object carousel including a service gateway message, a directory message, a file message, a stream message and a stream event message, and

the signaling information comprises Application Information Table (AIT) signaling information including information for describing characteristics of an application and identifying the application, information for describing a transmit protocol, location information of the Download Info Indication (DII) and Application Information Table (AIT) information.

57. The apparatus as recited in claim 56, wherein the extended metadata is defined in a program metadata communication protocol (PMCP), and

the extended metadata further comprises a channel metadata for describing a virtual channel including Program Map Table (PMT) information, wherein the Program Map Table (PMT) information includes an identifier metadata of the object carousel, an application signaling metadata, an identifier metadata of the data broadcasting, a stream identifier metadata, an association tag metadata and a Program Map Table (PMT) descriptor metadata.

58. The apparatus as recited in claim 53, wherein the encoding information comprises information for encapsulation.