Data disc modulation for minimizing pirating and/or unauthorized copying and/or unauthorized access of/to data on/from data media including compact discs and digital versatile discs

• US 6,636,689 B1
• Filed: 05/20/1999
• Issued: 10/21/2003
• Est. Priority Date: 05/20/1998
• Status: Expired due to Fees

• Current Assignee: Recording Industry Association of America
• Original Assignee: Recording Industry Association of America
• Inventors: Stebbings, David W.
• Primary Examiner(s): Chevalier, Robert
• Application Number:
  US09/315,104
• Time in Patent Office: 1,615 Days
• Field of Search: H04/N.591, H04/N.585, 386/94, 386/52, 386/4, 386/1, 386/46, 386/95, 386/125, 386/126, 386/45, 360/15, 360/13, 360/60, 380/277, 380/282, 380/285, 705/57
• US Class Current: 386/252
• CPC Class Codes: G11B 19/04 Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
• CPC Class Codes: G11B 19/12 by sensing distinguishing features of or on records, e.g. diameter end mark
• CPC Class Codes: G11B 19/122 involving the detection of an identification or authentication mark record carriers indicating unauthorised or prior use G11B23/28
• 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 20/00094 involving measures which result in a restriction to authorised record carriers
• CPC Class Codes: G11B 20/00123 the record carrier being identified by recognising some of its unique characteristics, e.g. a unique defect pattern serving as a physical signature of the record carrier
• CPC Class Codes: G11B 20/00166 involving measures which result in a restriction to authorised contents recorded on or reproduced from a record carrier, e.g. music or software
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/00579 said format change concerning the data encoding, e.g., modulation schemes violating run-length constraints, causing excessive DC content, or involving uncommon codewords or sync patterns
• CPC Class Codes: G11B 20/00586 said format change concerning the physical format of the recording medium
• CPC Class Codes: G11B 20/00927 wherein said defects or errors are generated on purpose, e.g. intended scratches
• CPC Class Codes: G11B 20/1426 conversion to or from block codes or representations thereof
• CPC Class Codes: G11B 20/1809 by interleaving
• CPC Class Codes: H04N 2005/91342 the copy protection signal being an authentication signal
• CPC Class Codes: H04N 2005/91357 by modifying the video signal
• CPC Class Codes: H04N 21/8352 involving content or source identification data, e.g. Unique Material Identifier [UMID]
• CPC Class Codes: H04N 21/8358 involving watermark protecting executable software by watermarking G06F21/16; image watermarking in general G06T1/0021; watermarks inserted in still images for transmission purposes H04N1/32144; inserting watermarks during video coding H04N19/467
• CPC Class Codes: H04N 5/913 for scrambling ; for copy protection
• CPC Class Codes: H04N 5/945 for signals recorded by pulse code modulation

Abstract

The present invention relates to a method and system for authenticating a media and/or the data stored on the media in order to prevent piracy and/or unauthorized access and/or unauthorized copying of the data stored on the media, including CDs and DVDs. According to the present invention, there are three ways that authentication keys can be formed and remain hidden without being transferred in the audio/video. These three methods are employed using conventional hardware and/or software in CD or DVD players, which may optionally be modified. Each method of producing authentication keys according to the present invention is a function of the physical characteristics of a disc that does not normally travel with the audio or video or graphics data. Authentication systems of the present invention optionally encompass singular, multiple or multi-level authentication systems, each of which successively must be deciphered before the audio/video is finally available, or, alternatively where each key component must be found in order to build the whole key to perform the entire decryption or authentication process.

Claims

1. A method for authenticating at least one of a media and data stored on said media, in order to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said media, wherein said media is modulated via at least one of pit depth, pit width and pit track comprising at least one authentication key or component thereof for authenticating whether at least one of said media and said data is authenticated, said method comprising the steps of:

(a) reading the data from said media;

(b) detecting the modulation of the at least one of said pit depth, pit width and pit track;

(c) deriving an embedded authentication key or component thereof responsive to said detecting step (b);

(d) comparing the embedded authentication key or component thereof to at least one authentication key or component thereof;

(e) authenticating at least one of said media and said data responsive to said comparing step (d); and

(f) outputting said data as at least one of audio, video, audio data, video data and digital data substantially free of the modulation of the at least one of the pit depth, pit width and pit track.

2. A method according to claim 1, wherein said deriving step (c) derives the embedded authentication key or component thereof as a combination of on-off binary codes representing ones and zeros to represent a predetermined pattern.

3. A method according to claim 1, wherein said outputting step (f) further includes the step of converting said data into a stereo analog signal without transferring, in the data, the modulation of the at least one of the pit depth, pit width and pit track used to derive the embedded authentication key or component thereof.

4. A method according to claim 1, and further including the step of:

(g) physically altering the at least one of pit depth, pit width and pit track of the media on at least one of a per track basis and interval basis throughout said media such that said authentication step (e) is performed for at least one of each track to be played, throughout playback and throughout recording.

5. A method according to claim 1, wherein said authenticating step (e) further includes a step of authenticating using a different authentication key or component thereof for each disc track.

6. A method according to claim 1, said method comprises the step of authenticating the at least one of the data and the media via at least two different authentication keys, each of which successively must be authenticated before said data is finally output via said outputting step (f).

7. A method according to claim 1, wherein said method authenticates the at least one of the media and the data over a plurality of interconnected computer networks comprising at least one of a local network, global network and Internet.

8. A method according to claim 1, wherein said authenticating step (e) further includes a step of using at least three different sources for compiling long or compound authentication keys.

9. A method according to claim 1 wherein said deriving step (c) further comprises the step of at least one of decoding and decrypting-the embedded authentication key or component thereof.

10. A method according to claim 1 wherein said comparing step (d) further comprises the step of comparing a modulated signal derived from at least one of pit depth, pit width and pit track modulation, to a table of valid modulated signals derived from at least one of pit depth, pit width and pit track modulation.

11. In a method for authenticating at least one of a media and data stored on said media, in order to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said media, a data disc comprising media that is modulated via at least one of pit depth, pit width and pit track comprising at least one authentication key or component thereof for authenticating whether at least one of said media and said data is authenticated.

15. The data disc of claim 11, wherein the authentication key or component thereof is derived as a combination of on-off binary codes representing ones and zeros to represent a predetermined pattern.

16. The data disc of claim 11, wherein the media is modulated via at least one of pit depth, pit width and pit track on at least one of a per track basis and an interval basis throughout said media such that the data is authenticated for at least one of each track to be played, throughout playback and throughout recording.

17. The data disc of claim 11, wherein the at least one of said media and said data is authenticated using a different authentication key or component thereof for each disc track.

18. The data disc of claim 11, wherein the at least one of said media and said data is authenticated using at least two different authentication keys, each of which successively must be authenticated before said data is finally output.

19. The data disc of claim 11, wherein the at least one of said media and said data is authenticated over a plurality of interconnected computer networks comprising at least one of a local network, global network, and Internet.

20. The data disc of claim 11, wherein the at least one of said media and said data is authenticated using at least three different sources for compiling long or compound authentication keys.

21. The data disc of claim 11, wherein said authentication key or component thereof is at least one of decoded and decrypted.

12. In a method for authenticating at least one of a media and data stored on said media, in order to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said media, wherein said media is modulated via at least one of pit depth, pit width and pit track comprising at least one authentication key or component thereof, for authenticating whether the at least one of said media and said data is authenticated, a data player comprising a data processor performing the steps of:

(a) reading the data from said media;

(b) detecting the modulation of the at least one of pit depth, pit width and pit track;

(c) deriving an embedded authentication key or component thereof responsive to said detecting step (b);

(d) comparing the embedded authentication key or component thereof to at least one authentication key or component thereof;

(e) authenticating at least one of said media and said data responsive to said comparing (d) step; and

(f) outputting said data as at least one of audio, video, audio data, video data and digital data substantially free of the modulation of the at least one of the pit depth, pit width and pit track.

22. The data player of claim 12, wherein said deriving step (c) derives the embedded authentication key or component thereof as a combination of on-off binary codes representing ones and zeros to represent a predetermined pattern.

23. The data player of claim 12, wherein said outputting step (f) further includes the step of converting said data into a stereo analog signal without transferring, in the data, the modulation of the at least one of the pit depth, pit width and pit track used to derive the embedded authentication key or component thereof.

24. The data player of claim 12, wherein the data processor further performs the step of:

(g) physically altering the at least one of pit depth, pit width and pit track of the media on at least one of a per track basis and an interval basis throughout said media such that said authentication step (e) is performed for at least one of each track to be played, throughout playback and throughout recording.

25. The data player of claim 12, wherein said authentication step (e) further includes a step of authenticating using a different authentication key or component thereof for each disc track.

26. The data player of claim 12, wherein the data processor further performs the step of authenticating the at least one of the data and the media via at least two different authentication keys, each of which successively must be authenticated before said data is finally output via said outputting step (f).

27. The data player of claim 12, wherein the data processor further performs the step of authenticating the at least one of the data and the media over a plurality of interconnected computer networks comprising at least one of a local network, global network and Internet.

28. The data player of claim 12, wherein said authenticating step (e) further includes a step of using at least three different sources for compiling long or compound authentication keys.

29. The data player of claim 12, wherein said deriving step (c) further comprises the step of at least one of decoding and decrypting the embedded authentication key or component thereof.

30. The data player of claim 12, wherein said comparing step (d) further comprises the step of comparing a modulated signal derived from at least one of pit depth, pit width and pit track modulation, to a table of valid modulated signals derived from at least one of pit depth, pit width and pit track modulation.

13. In a method for authenticating at least one of a media and data to be stored on said media, in order to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said media, a data message comprising modulation via at least one of pit depth, pit width and pit track comprising at least one authentication key or component thereof lo for authenticating whether said data message is authenticated, and wherein the modulation of the at least one of the pit depth, pit width and pit track cannot be readily altered, obscured nor removed from said data without simultaneously degrading or impairing a quality of an audible component of said data message, and wherein the data message is transmitted substantially free of the modulation of the at least one of the pit depth, pit width and pit track, thereby preventing a destination processor from reading and subsequently authenticating the data message.

31. The data message of claim 13, wherein the authentication key or component thereof is derived as a combination of on-off binary codes representing ones and zeros to represent a predetermined pattern.

32. The data message of claim 13, wherein modulation via at least one of pit depth, pit width and pit track is on at least one of a per track basis and an interval basis throughout said media such that the data is authenticated for at least one of each track to be played, throughout playback and throughout recording.

33. The data message of claim 13, wherein said data message is authenticated using a different authentication key or component thereof for each disc track.

34. The data message of claim 13, wherein said data message is authenticated using at least two different authentication keys, each of which successively must be authenticated before said data is finally output.

35. The data message of claim 13, wherein said data message is authenticated over a plurality of interconnected computer networks comprising at least one of a local network, global network, and Internet.

36. The data message of claim 13, wherein said data message is authenticated using at least three different sources for compiling long or compound authentication keys.

37. The data message of claim 13, wherein said authentication key or component thereof is at least one of decoded and decrypted.

14. A system for authenticating at least one of a media and data stored on said media, in order to prevent at least one of piracy, unauthorized access and unauthorized copying of the data stored on said media, wherein said media is modulated via at least one of pit depth, pit width and pit track comprising at least one authentication key or component thereof for authenticating whether at least one of said media and said data is authenticated, said system including a data player containing a data processor comprising:

(a) first detecting means for detecting all pit modulated data from a data stream;

(b) second detecting means for determining authentication key data that has been pit depth modulated based on a physical characteristic of a data disc;

(c) third detecting means for determining authentication key data that has been pit width modulated based on a physical characteristic of a data disc;

(d) fourth detecting means for determining authentication key data that has been pit track modulated based on a physical characteristic of a data disc;

wherein the first, second, third and fourth detecting means are interconnected via a focus server, tracking server, laser, lens and mirror, further comprising a portion of a disc reader housed in a data player device.

38. The system of claim 14, wherein the authentication key or component thereof is derived as a combination of on-off binary codes representing ones and zeros to represent a predetermined pattern.

39. The system of claim 14, wherein the media is modulated via at least one of pit depth, pit width and pit track on at least one of a per track basis and an interval basis throughout said media such that the data is authenticated for at least one of each track to be played, throughout playback and throughout recording.

40. The system of claim 14, wherein the at least one of said media and said data is authenticated using a different authentication key or component thereof for each disc track.

41. The system of claim 14, wherein the at least one of said media and said data is authenticated using at least two different authentication keys, each of which successively must be authenticated before said data is finally output.

42. The system of claim 14, wherein the at least one of said media and said data is authenticated over a plurality of interconnected computer networks comprising at least one of a local network, global network, and Internet.

43. The system of claim 14, wherein the at least one of said media and said data is authenticated using at least three different sources for compiling long or compound authentication keys.

44. The system of claim 14, wherein said authentication key or component thereof is at least one of decoded and decrypted.