Method and apparatus for preparing media data for transmission

• US 6,829,648 B1
• Filed: 12/23/1999
• Issued: 12/07/2004
• Est. Priority Date: 01/15/1998
• Status: Expired due to Term

• Current Assignee: Apple Inc.
• Original Assignee: Apple Computer Incorporated (Apple Inc.)
• Inventors: Periyannan, Alagu, Jones, Anne, Gong, Kevin L., Geagan, Jay, Singer, David W.
• Primary Examiner(s): Lim, Krisna
• Application Number:
  US09/471,652
• Time in Patent Office: 1,811 Days
• Field of Search: 370/465, 370/235, 370/265, 370/270, 709/230, 709/231, 345/259, 345/327
• US Class Current: 709/230
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04N 21/2381 Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/4143 embedded in a Personal Computer [PC]
• 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 21/4381 Recovering the multiplex stream from a specific network, e.g. recovering MPEG packets from ATM cells transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/6437 Real-time Transport Protocol [RTP]
• 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
• CPC Class Codes: H04N 21/8455 involving pointers to the content, e.g. pointers to the I-frames of the video stream
• CPC Class Codes: H04N 21/85406 involving a specific file format, e.g. MP4 format
• CPC Class Codes: H04N 7/52 Systems for transmission of a pulse code modulated video signal with one or more other pulse code modulated signals, e.g. an audio signal or a synchronizing signal assembling of a multiplex stream by combining a video stream with other content or additional data, remultiplexing of multiplex streams, insertion of stuffing bits into the multiplex stream, assembling of a packetised elementary stream at server side H04N21/236; disassembling of a multiplex stream, remultiplexing of multiplex streams, extraction or processing of Service Information, disassembling of packetised elementary stream at client side H04N21/434

Abstract

Methods and apparatuses for processing media data for transmission in a data communication medium. A set of data indicates how to transmit a time related sequence of media data according to a transmission protocol. The set of data, includes a time related sequence of data which is associated with the time related sequence of media data. The set of data may be utilized by a digital processing system to transmit the time related sequence of media data (e.g., by packets generated according to the transmission protocol and the set of data).

Claims

1. A method implemented by a digital processing system for processing media data, said method comprising:

retrieving from a digital storage system a set of data which indicates how to transmit a time related sequence of media data according to defined packetizing characteristics related to communications protocols, wherein said set of data is a time related sequence of data associated with said time related sequence of media data.

2. A method as in claim 1 further comprising:

transmitting packets of data representing said time related sequence of media data according to the set of data.

3. A method as in claim 1 wherein for each of said packets, said set of data refers to data in at least one of a sequence of image data and a sequence of audio data associated with said time related sequence of media data.

4. A method as in claim 1 wherein said method further comprises packetizing said time related sequence of media data according to said set of data.

5. The method as in claim 1, wherein said defined packetizing characteristics comprise at least one of an Internet protocol, network bandwidth, and a data transmission rate.

6. The method as in claim 1, wherein said set of data varies with different packetizing characteristics.

7. The method as in claim 1, wherein said set of data is separate from said time related sequence of media data.

8. The method as in claim 1, wherein said set of data is stored as a sequence of indicating data.

9. The method as in claim 1, wherein said time related sequence of media data is associated with time-based media.

10. The method as in claim 1, wherein said time related sequence of media data is stored on a read-only memory (ROM).

11. A machine readable medium containing executable program instructions, which when executed on a digital processing system cause the digital processing system to perform a method comprising:

retrieving a set of data which indicates how to transmit a time related sequence of media data according to defined packetizing characteristics related to communications protocols wherein said set of data is a time related sequence of data associated with said time related sequence of media data.

12. The machine readable medium as in claim 11, said method further comprising:

transmitting packets representative of said time related sequence of media data according to said set of data.

13. The machine readable medium of claim 11, wherein said set of data is stored as a track of indicating data.

14. The machine readable medium of claim 11, wherein said method further comprises:

determining a format of said time related sequence of media data;

packetizing said time related sequence of media data according to said set of data;

wherein said defined packetizing characteristics is used to transmit said time related sequence of media data which has said format and wherein said packetizing uses said format and said defined packetizing characteristics to packetize said time related sequence of media data.

15. The machine readable medium of claim 14, wherein the method further comprises:

transmitting packets of data representing said time related sequence of media data according to said defined packetizing characteristics.

16. The machine readable medium of claim 15, wherein for each of said packets, said set of data refers to data in at least one of a sequence of image data and of a sequence of audio data associated with said time related sequence of media data.

17. The machine readable medium as in claim 11, wherein said defined packetizing characteristics comprise at least one of an Internet protocol, network bandwidth, and a data transmission rate.

18. The machine readable medium as in claim 11, wherein said set of data varies with different packetizing characteristics.

19. The machine readable medium as in claim 11, wherein said set of data is separate from said time related sequence of media data.

20. The machine readable medium of claim 11, wherein said time related sequence of media data is associated with time-based media.

21. The machine readable medium of claim 11 wherein said time related sequence of media data is stored on a read-only memory (ROM).

22. An apparatus comprising:

a port configured to receive a set of data associated with transmission of a time related sequence of media data according to defined packetizing characteristics related to communications protocols, wherein said set of data is a time related sequence of data associated with said time related sequence of media data;

a processing unit coupled to said port to receive said set of data, said processing unit packetizing said time related sequence of media data according to said set of data.

23. The apparatus of claim 22, further comprising a transmitter coupled to said processing unit, said transmitter for transmitting packets of data representing said time related sequence of media data according to said defined packetizing characteristics.

24. The apparatus of claim 23, wherein for each of said packets, said set of data refers to data in at least one of a sequence of image data and a sequence of audio data associated with said time related sequence of media data.

25. The apparatus of claim 22, wherein said defined packetizing characteristics comprise at least one of an Internet protocol, network bandwidth, and a data transmission rate.

26. The apparatus of claim 22, wherein said set of data varies with different packetizing characteristics.

27. The apparatus of claim 22, wherein said set of data is separate from said time related sequence of media data.

28. The apparatus of claim 22, wherein said set of data is received as a track of indicating data.

29. The apparatus of claim 22, wherein said time related sequence of media data is associated with time-based media.

30. The apparatus of claim 22, wherein said time related sequence of media data is stored on a read-only memory (ROM).

31. An apparatus for processing media data, said apparatus comprising:

a means for retrieving a set of data which indicates how to transmit a time related sequence of media data according to defined packetizing characteristics related to communications protocols, wherein said set of data is a time related sequence of data associated with said time related sequence of media data; and

a means for packetizing said time related sequence of media data according to said set of data.

32. The apparatus of claim 31, further comprising:

a means for transmitting packets of data representing said time related sequence of media data.

33. The apparatus of claim 32, wherein for each of said packets, said set of data refers to data in at least one of a sequence of image data and a sequence of audio data associated with said time related sequence of media data.

34. The apparatus of claim 31, wherein said defined packetizing characteristics comprise at least one of an Internet protocol, network bandwidth, and a data transmission rate.

35. The apparatus of claim 31, wherein said set of data varies with different packetizing characteristics.

36. The apparatus of claim 31, wherein said set of data is separate from said time related sequence of media data.

37. The apparatus of claim 31, wherein said set of data is stored as a track of indicating data.

38. The apparatus of claim 31, wherein said time related sequence of media data is associated with time-based media.

39. The apparatus of claim 31, wherein said time related sequence of media data is stored on a read-only memory (ROM).

40. A method implemented by a digital processing system for processing media data, said method comprising:

retrieving a first time related sequence of data to indicate how to transmit a second time related sequence of data according to defined packetizing characteristics related to communications protocols, wherein said second time related sequence of data is associated with time-based media, and wherein said first time related sequence of data is associated with said second time related sequence of data; and

packetizing said second time related sequence of data according to said first time related sequence of data.

41. A method as in claim 40, further comprising:

transmitting packets of data representing said second time related sequence of data according to said defined packetizing characteristics.

42. A method as in claim 41, wherein for each of said packets, said first time related sequence of data refers to at least one of a sequence of image data and a sequence of audio data associated with said second time related sequence of data.

43. A method as in claim 42, wherein said second time related sequence of data is stored on a read-only memory (ROM).

44. A method implemented by a digital processing system for processing media data, said method comprising:

retrieving from a digital storage system a set of data that indicates how to packetize a time related sequence of media data for transmission according to defined packetizing characteristics, wherein said set of data is a time related sequence of data associated with time related sequence of media data.

45. The method as in claim 44 further comprising:

transmitting packets of data representing said time related sequence of media data according to said set of data.

46. The method as in claim 45, wherein for each of said packets, said set of data refers to data in at least one of a sequence of image data and a sequence of audio data associated with said time related sequence of media data.

47. The method as in claim 44 wherein said method further comprises packetizing said time related sequence of media data according to said set of data.

48. The method as in claim 44, wherein said defined packetizing characteristics comprise at least one of an Internet protocol, network bandwidth, and a data transmission rate.

49. The method as in claim 44, wherein said set of data varies with different packetizing characteristics.

50. The method as in claim 44, wherein said set of data is separate from said time related sequence of media data.

51. The method as in claim 44, wherein said set of data is stored as a sequence of indicating data.

52. The method as in claim 44, wherein said time related sequence of media data is associated with time-based media.

53. The method as in claim 44, wherein said time related sequence of media data is stored on a read-only memory (ROM).

54. A machine readable medium containing executable program instructions, which when executed on a digital processing system cause the digital processing system to perform a method comprising:

retrieving a set of data which indicates how to packetize a time related sequence of media data for transmission according to defined packetizing characteristics, wherein said set of data is a time related sequence of data associated with said time related sequence of media data.

55. The machine readable medium as in claim 54, said method further comprising:

transmitting packets representative of said time related sequence of media data according to said set of data.

56. The machine readable medium of claim 54, wherein for each of said packets, said set of data refers to data in at least one of a sequence of image data and a sequence of audio data associated with said time related sequence of media data.

57. The machine readable medium of claim 54, wherein said method further comprises:

packetizing said time related sequence of media data according to said set of data.

58. The machine readable medium as in claim 54, wherein said defined packetizing characteristics comprise at least one of an Internet protocol, network bandwidth, and a data transmission rate.

59. The machine readable medium as in claim 54, wherein said set of data varies with different packetizing characteristics.

60. The machine readable medium as in claim 54, wherein said set of data is separate from said time related sequence of media data.

61. The machine readable medium of claim 54, wherein said set of data is stored as a track of indicating data.

62. The machine readable medium of claim 54, wherein said time related sequence of media data is associated with time-based media.

63. The machine readable medium of claim 54, wherein said time related sequence of media data is stored on a read-only memory (ROM).

64. An apparatus comprising:

a port configured to receive a set of data associated with packetization of a time related sequence of media data for transmission according to defined packetizing characteristics, wherein said set of data is a time related sequence of data associated with said time related sequence of media data;

a processing unit coupled to said port, said processing unit packetizing said time related sequence of media data according to said set of data.

65. The apparatus of claim 64, further comprising a transmitter coupled to said processing unit, said transmitter for transmitting packets representing said time related sequence of media data according to said defined packetizing characteristics.

66. The apparatus of claim 65, for each of said packets, said set of data refers to data in at least one of a sequence of image data and a sequence of audio data associated with said time related sequence of media data.

67. The apparatus of claim 64, wherein said defined packetizing characteristics comprise at least one of an Internet protocol, network bandwidth, and a data transmission rate.

68. The apparatus of claim 64, wherein said set of data varies with different packetizing characteristics.

69. The apparatus of claim 64, wherein said set of data is separate from said time related sequence of media data.

70. The apparatus of claim 64, wherein said set of data is received as a track of indicating data.

71. The apparatus of claim 64, wherein said time related sequence of media data is associated with time-based media.

72. The apparatus of claim 64, wherein said time related sequence of media data is stored on a read-only memory (ROM).

75. The apparatus of claim 69, wherein for each of said packets, said set of data refers to data in at least one of a sequence of image data and a sequence of audio data associated with said time related sequence of media data.

73. An apparatus for processing media data comprising:

a means for retrieving a set of data that indicates how to packetize a time related sequence of media data for transmission according to defined packetizing characteristics, wherein said set of data is a time related sequence of data associated with said time related sequence of media data; and

a means for packetizing said time related sequence of media data according to said set of data.

74. The apparatus of claim 73, further comprising:

a means for transmitting packets representing said time related sequence of media data.

76. The apparatus of claim 73, wherein said defined packetizing characteristics comprise at least one of an Internet protocol, network bandwidth, and a data transmission rate.

77. The apparatus of claim 73, wherein said set of data varies with different packetizing characteristics.

78. The apparatus of claim 73, wherein said set of data is separate from said time related sequence of media data.

79. The apparatus of claim 73, wherein said set of data is stored as a track of indicating data.

80. The apparatus of claim 73, wherein said time related sequence of media data is associated with time-based median.

81. The apparatus of claim 73, wherein said time related sequence of media data red on a read-only memory (ROM).