SYSTEMS AND METHODS OF FINGERPRINTING AND IDENTIFYING DIGITAL VERSATILE DISC

• US 20080040807A1
• Filed: 02/27/2007
• Published: 02/14/2008
• Est. Priority Date: 02/27/2006
• Status: Active Grant

• Current Assignee: Vobile Incorporated (Vobile Group Ltd.)
• Original Assignee: Vobile Incorporated (Vobile Group Ltd.)
• Inventors: Wang, Yangbin, LU, JIAN
• Granted Patent: US 8,689,337 B2
• Time in Patent Office: Days
• US Class Current: 726/26
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/00449 content scrambling system [CSS]
• CPC Class Codes: H04N 21/2541 Rights Management protecting software against unauthorised usage in a vending or licensing environment G06F21/10; security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/42646 for reading from or writing on a non-volatile solid state storage medium, e.g. DVD, CD-ROM
• CPC Class Codes: H04N 21/44008 involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream arrangements characterised by components specially adapted for monitoring, identification or recognition of video in broadcast systems H04H60/59
• CPC Class Codes: H04N 21/44236 Monitoring of piracy processes or activities protecting computer platforms against harmful, malicious or unexpected behaviour or activities using intrusion detection and counter measures G06F21/566; computer virus detection and handling G06F21/56
• CPC Class Codes: H04N 21/835 Generation of protective data, e.g. certificates protecting software against unauthorised usage in a vending or licensing environment G06F21/10

Abstract

Systems and methods are provided for identifying a video object using digital fingerprints. The digital fingerprints are generated from information extracted from the video object including encoded video. The digital fingerprints can be calculated in a manner that permits identification of both the video object and operational characteristics of the video object based on matching calculated digital fingerprints with known fingerprints of known video objects. Systems and methods are described that allow a DVD to be uniquely identified and identify whether the DVD is original, copied or pirated. Systems and methods are described for computing digital fingerprints from strings of bits in which certain additional data is optionally embedded. Systems and methods are described that permit media players to access known signatures of known video objects maintained on one or more databases and to identify video objects presented for playing on the media player.

Claims

1. A method of fingerprinting a video object comprising:

extracting data from the video object;

calculating one or more digital fingerprints of the extracted data; and

maintaining a copy of the one or more digital fingerprints in association with information identifying the video object, wherein

the extracted data includes encoded video, and wherein

at least one of the digital fingerprints uniquely identifies a portion of the encoded video.

2. The method of claim 1, wherein the video object includes a DVD comprising a plurality of information files.

3. The method of claim 2, wherein the one or more digital fingerprints include a first digital fingerprint calculated from the plurality of information files.

4. The method of claim 3, wherein the one or more digital fingerprints include a second digital fingerprint calculated from the plurality of information files and additional information identifying operational characteristics of the DVD.

5. The method of claim 4, wherein the additional information includes a code identified with Content Scrambling System.

6. The method of claim 4, wherein the additional information includes a Regional Protection Code.

7. The method of claim 4, wherein the additional information includes Analog Protection System bits.

8. The method of claim 4, wherein the identified operational characteristics identify origin of the DVD.

9. The method of claim 1, wherein the one or more digital fingerprints identify content, structure and origin of a DVD.

10. The method of claim 9 and further comprising providing the one or more digital fingerprints and information identifying the DVD to a repository of digital fingerprints.

11. The method of claim 1, wherein the one or more digital fingerprints identify content and origin of the video object and Hirther comprising providing the one or more digital fingerprints and information identifying the video object to a repository of digital fingerprints.

12. A computer readable medium encoded with data and instructions for fingerprinting a video object, the data and instructions causing an apparatus executing the instructions to:

extract data from the video object;

calculate one or more digital fingerprints of the extracted data; and

store a copy of the one or more digital fingerprints and information identifying the video object, wherein

the extracted data includes encoded video, and wherein

at least one of the digital fingerprints uniquely identifies a portion of the encoded video.

13. The computer readable medium of claim 12, wherein the video object includes a DVD comprising a plurality of information files.

14. The computer readable medium of claim 13, wherein the one or more digital fingerprints include a first digital fingerprint calculated from the plurality of information files.

15. The computer readable medium of claim 14, wherein the one or more digital fingerprints include a second digital fingerprint calculated from the plurality of information files and additional information identifying operational characteristics of the DVD.

16. The computer readable medium of claim 15, wherein the additional information includes a code identified with Content Scrambling System.

17. The computer readable medium of claim 15, wherein the additional information includes a Regional Protection Code.

18. The computer readable medium of claim 15, wherein the additional information includes Analog Protection System bits.

19. The computer readable medium of claim 15, wherein the identified operational characteristics identify origin of the DVD.

20. The computer readable medium of claim 12, wherein the one or more digital fingerprints identify content, structure and origin of a DVD.

21. The computer readable medium of claim 20, further encoded with data and instructions, the data and instructions further causing an apparatus executing the instructions to provide the one or more digital fingerprints and information identifying the DVD to a repository of digital fingerprints.

22. The computer readable medium of claim 12, wherein the one or more digital fingerprints identify content and origin of the video object and further encoded with data and instructions, the data and instructions further causing an apparatus executing the instructions to provide the one or more digital fingerprints and information identifying the video object to a repository of digital fingerprints.

23. A method of identifying a video object comprising:

extracting data including encoded video from the video object;

calculating one or more digital fingerprints based on the extracted data; and

matching at least one of the one or more calculated digital fingerprints with corresponding known digital fingerprints of a known video object, wherein a calculated digital fingerprint uniquely identifies a portion of the encoded video.

24. The method of claim 23, and further comprising identifying the video object based on information associated with the corresponding known digital fingerprints.

25. The method of claim 23, wherein the video object is identified by matching the calculated digital fingerprint with a corresponding known digital fingerprint of the known video object.

26. The method of claim 25, wherein the video object comprises a DVD including a plurality of information files.

27. The method of claim 26, wherein the digital fingerprint is calculated from the plurality of information files.

28. The method of claim 26, wherein the one or more digital fingerprints include digital fingerprints calculated from the plurality of information files and additional information corresponding to the DVD.

29. The method of claim 28, wherein the additional information includes a code identified with a Content Scrambling System.

30. The method of claim 29, wherein the additional information includes a Regional Protection Code.

31. The method of claim 30, wherein the additional information includes Analog Protection System bits.

32. The method of claim 31, wherein the matching includes determining the provenance of the DVD, wherein the DVD is determined to be an original DVD when all of the one or more digital fingerprints are identical to corresponding digital fingerprints of a previously fingerprinted DVD.

33. The method of claim 32, wherein a match of fewer than all of the one or more digital fingerprints are identical to corresponding digital fingerprints of the previously fingerprinted DVD is indicative of a copied DVD.

34. A computer readable medium encoded with data and instructions for identifying a video object;

the data and instructions causing an apparatus executing the instructions to;

extract data including encoded video from the video object;

calculate a plurality of digital fingerprints of the extracted data; and

match at least one of the calculated digital fingerprints with corresponding known digital fingerprints of a known video object, wherein one or more of the calculated digital fingerprints uniquely identifies a portion of the encoded video.

35. The computer readable medium of claim 34 further encoded with data and instructions;

the data and instructions further causing an apparatus executing the instructions to identify the video object based on information associated with the corresponding known digital fingerprints.

36. The computer readable medium of claim 34, wherein the video object comprises a DVD including a plurality of information files.

37. The computer readable medium of claim 36, wherein the one or more digital fingerprint is calculated from the plurality of information files.

38. The computer readable medium of claim 36, wherein the one or more digital fingerprints include other digital fingerprints calculated from the plurality of information files and operational information corresponding to the DVD.

39. The computer readable medium of claim 38, wherein the operational information includes a code identified with a Content Scrambling System, a Regional Protection Code and Analog Protection System bits.

40. The computer readable medium of claim 39 further encoded with data and instructions;

the data and instructions further causing an apparatus executing the instructions to determine the origins of the DVD, wherein the DVD is determined to be an original DVD when certain of the one or more digital fingerprints are identical to corresponding digital fingerprints of a previously fingerprinted DVD.

41. The computer readable medium of claim 38, wherein the known digital fingerprints are maintained in a digital fingerprint repository.

42. The computer readable medium of claim 41, wherein the digital fingerprint repository is maintained in a database.

43. The computer readable medium of claim 38, wherein the apparatus is a DVD player.

44. The computer readable medium of claim 38, wherein the apparatus is a computer.

45. The computer readable medium of claim 36, wherein the apparatus is a digital video recorder.

46. A system for identifying a video object comprising:

a media player adapted to extract data including encoded video from the video object; and

a processor configured to

calculate one or more digital fingerprints from the extracted data; and

match at least one of the one or more calculated digital fingerprints with corresponding known digital fingerprints of a known video object,

wherein at least one calculated digital fingerprint uniquely identifies a portion of the encoded video.

47. The system of claim 46, wherein the known digital fingerprints are maintained in a digital fingerprint repository.

48. The system of claim 47, wherein the digital fingerprint repository is maintained in a database locally accessible by the processor.

49. The system of claim 47, wherein the digital fingerprint repository is maintained in a database accessible by the processor through a network.

50. The system of claim 46, wherein the media player is a DVD player.

51. The system of claim 46, wherein the media player is a provided in a computer.

52. The system of claim 46, wherein the media player is a digital video recorder.

53. The system of claim 46, wherein the video object comprises a DVD including a plurality of information files and the one or more digital fingerprints include digital fingerprints calculated from the plurality of information files and operational information corresponding to the DVD.

54. A system for fingerprinting a video object comprising:

a processor configured to calculate digital fingerprints of data extracted from the video object; and

storage accessible to the processor for storing the digital fingerprints in association with information related to the video object, wherein

the extracted data includes encoded video, and wherein

at least one of the digital fingerprints uniquely identifies a portion of the encoded video with the video object.

55. The system of claim 54, wherein the video object is a DVD comprising a plurality of information files.

56. The system of claim 55, wherein the digital fingerprints include a first digital fingerprint calculated from the plurality of information files.

57. The system of claim 56, wherein the digital fingerprints include a second digital fingerprint calculated from the plurality of information files and additional information identifying operational characteristics of the DVD.

58. The system of claim 57, wherein the additional information includes a code identified with Content Scrambling System.

59. The system claim 57, wherein the additional information includes a Regional Protection Code.

60. The system claim 57, wherein the additional information includes Analog Protection System bits.

61. The system of claim 57, wherein the identified operational characteristics identify origin of the DVD.

62. The system of claim 54, wherein the digital fingerprints identify content, structure and origin of a DVD.