Data storage in optical discs

• US 20050063256A1
• Filed: 09/10/2004
• Published: 03/24/2005
• Est. Priority Date: 06/30/2000
• Status: Abandoned Application

• Current Assignee: Verification Technologies, Inc. (Sun Chemical, Inc.)
• Original Assignee: Verification Technologies, Inc. (Sun Chemical, Inc.)
• Inventors: Vig, Rakesh, Drew, Jeffrey M., Selinfreund, Richard H., Goyette, Donald Roland
• Application Number:
  US10/939,281
• Publication Number:
  US 20050063256A1
• Time in Patent Office: Days
• US Class Current: 369/18
• 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 20/00586 said format change concerning the physical format of the recording medium
• CPC Class Codes: G11B 20/00768 wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags
• CPC Class Codes: G11B 20/00876 wherein physical copy protection means are attached to the medium, e.g. holograms, sensors, or additional semiconductor circuitry
• CPC Class Codes: G11B 20/00927 wherein said defects or errors are generated on purpose, e.g. intended scratches
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: G11B 23/281 by changing the physical properties of the record carrier
• CPC Class Codes: G11B 7/24 Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the arrangement of information on the carrier G11B7/007
• CPC Class Codes: G11B 7/243 comprising inorganic materials only, e.g. ablative layers
• CPC Class Codes: G11B 7/247 methine or polymethine dyes
• CPC Class Codes: G11B 7/26 Apparatus or processes specially adapted for the manufacture of record carriers

Abstract

A device for preventing and controlling copying of data from an optical storage disc utilizing physical modifications in or on a storage capable optical disc. Also described is a method for authenticating and controlling reading or copying of information or data in or on optical discs as, for example, wherein a locus on or in the optical storage disc is initially read to produce a signal and is then re-read by a reader to produce a second signal. The signal detected upon re-reading is different from the signal that is detected upon initial sampling.

Claims

1. A computer-readable disc, comprising:

stored data in whole or part in an optical data structure representing a series of bits, said computer-readable optical data storage capable disc containing instruction for;

(a) detecting at a locus of said optical storage disc data true to the series of bits represented by said optical data structure;

(b) detecting at said locus of said optical storage disc data varying by one or more bits in the series of bits represented by the optical data structure at such locus;

(c) permitting read of said optical storage disc when the data obtained in (b) differs from the data in (a).

2. An article of manufacturing comprising:

an optical disc comprising a computer readable program code embodied in an optical data structure, and one or more sites of optical disuniformity therein that are not embodied in said optical data structure, said sites of optical disuniformity preventing the normal copying function of a computer, and said computer readable program code comprising a computer readable program code for causing said computer to read said optical data structure, or portion thereof, only when said sites of optical disuniformity are present in said optical disc.

3. The article of manufacture of claim 2 wherein said sites of optical disuniformity comprise a light-sensitive compound.

4. The article of manufacture of claim 3 wherein the light-sensitive compound is a light absorptive compound.

5. The article of manufacture of claim 3 wherein the light-sensitive compound is a light emissive compound.

6. The article of manufacture of claim 5 wherein the light-sensitive compound is a phosphorescent compound.

7. The article of manufacture of claim 3 wherein the light-sensitive compound has an emission wavelength at a wavelength detectable by a detector in an optical reader.

8. The article of manufacture of claim 3 wherein the light-sensitive compound absorbs light that, in the absence of the light-sensitive compound, would be detected by a detector in an optical reader.

9. The article of manufacture of claim 3 wherein the light-sensitive compound comprises a cyanine compound.

10. The article of manufacture of claim 3 wherein the light-sensitive compound comprises indodicarbocyanines, benzoindodicarbocyanines, and hybrids thereof.

11. The article of manufacture of claim 2 wherein the optical recording disc comprises CD, CD-Audio, CD-ROM, CD-G, CD-i, CD-MO, CD-R, CD-RW, DVD, DVD-5, DVD-9, DVD-10, DVD-18, DVD-ROM and any optical storage disc.

46. The optical recording disc of claim 2 wherein the disc comprises a CD.

47. The optical recording disc of claim 2 wherein the disc comprises a DVD.

12. An optical disc comprising:

a substrate having one or more information pits and lands thereon readable as digital data bits by an optical reader, and

a light-emissive compound positioned over, under, in, or on, one or more of said information pits and lands;

wherein said light-emissive compound is selectively positioned with respect to the information pits and lands so as to affect the bit read of said optical reader when said compound is emitting light, but not affecting the bit read of said optical reader when said compound is not emitting light, and wherein said light-emissive compound is excited by exposure to an input signal and spontaneously convertible to being light-non-emissive after a period of time.

13. The disc of claim 12 wherein the light-emissive compound has an emission wavelength at a wavelength detectable by the reader.

14. The disc of claim 12 wherein light emission from the light-emissive compound provides at least a portion of the data obtained when the disc is read.

15. The disc of claim 12 wherein the light-emissive compound is excitable by light emitted by a light source of the reader.

16. The disc of claim 12 wherein the disc is selected from the group consisting of CD, CD-Audio, CD-ROM, CD-G, CD-i, CD-MO, CD-R, CD-RW, DVD, DVD-5, DVD-9, DVD-10, DVD-18, DVD-ROM and any optical disk.

17. An optical disc comprising:

a substrate;

a data track disposed on the substrate, the data track including a first set of usable data; and

a light-sensitive compound disposed on at least a portion of the disc and cooperating with at least a portion of the data track, the light-sensitive compound being excitable with a suitable stimulus to produce a second set of usable data that is different from the first set of usable data regardless of the first set of usable data in the data track.

18. The disc of claim 17 wherein at least a portion of the light-sensitive compound is adapted to emit a wavelength of less than about 848 nm.

19. The disc of claim 17 wherein the data track is injection molded.

20. The disc of claim 17 wherein the data track is formed via a recording dye.

21. The disc of claim 17 wherein at least a portion of the light-sensitive compound is active.

22. The disc of claim 17 wherein at least a portion of the light-sensitive compound is phosphorescent.

23. The disc of claim 17 wherein at least a portion of the light-sensitive compound is fluorescent.

24. The disc of claim 17 wherein at least a portion of the light-sensitive compound is excitable by a light source emitting light at a wavelength between about 770 and about 830 nm.

25. The disc of claim 17 wherein at least a portion of the light-sensitive compound is excitable by a light source emitting light at a wavelength between about 630 and about 650 nm.

26. The disc of claim 17 wherein the light-sensitive compound is excitable by a light source emitting light at a wavelength between about 780 nm and by a light source emitting at about 530 nm.

27. The disc of claim 17 wherein at least a portion of the light-sensitive compound is adapted to emit at 780 nm.

28. The disc of claim 17 wherein at least a portion of the light-sensitive compound is adapted to emit at 530 nm.

29. The disc of claim 17 wherein at least a portion of the light-sensitive compound is adapted to emit at both about 780 nm and about 530 rim.

30. The disc of claim 17 wherein the light-sensitive compound comprises a cyanine compound.

31. The disc of claim 17 wherein the light-sensitive compound comprises indodicarbocyanines.

32. The disc of claim 17 wherein the light-sensitive compound comprises benzindodicarbocyanines.

33. The disc of claim 17 wherein the light-sensitive compound comprises a hybrid of indodicarbocyanines and benzoindodicarbocyanines.

34. The disc of claim 17 wherein a portion of the light-sensitive compound is adapted to be selectively activated.

35. The disc of claim 17 wherein the light-sensitive compound is less than about 160 nm in thickness.

36. The disc of claim 17 wherein the light-sensitive compound is activated by cross-linking.

37. The disc of claim 17 wherein the light-sensitive compound is activated by laser activation.

38. The disc of claim 17 wherein the light-sensitive compound is activated to provide at least a portion of a file allocation statement.

39. The disc of claim 17 wherein the data track includes instructions to re-read a locus on the disc.

41. The disc of claim 17 wherein the data track comprises instructions to continue accessing data on the disc based on the first and second sets of usable data being different.

42. The disc of claim 17 wherein the light-sensitive compound is disposed on the disk by spin coating.

43. The disc of claim 17 wherein the light-sensitive compound is less than about 120 nm in thickness.

44. The disc of claim 17 wherein the light-sensitive compound is less than about 10 nm in thickness.

45. The disc of claim 17 wherein the light-sensitive compound is less than about 1 nm in thickness.

40. The disc of 17 wherein activated light-sensitive compound is disposed under at least one portion of the locus.

48. A method for authenticating an optical storage disc, comprising:

(a) reading the optical storage disc at a locus to obtain data true to the series of bits represented by an optical data structure at such a locus;

(b) re-reading the optical storage disc at the locus to determine if the data obtained varies by one or more bits in the series of bits represented by the optical data structure at such a locus; and

(c) authenticating the optical storage disc if the data obtained in step (b) differs from the data obtained in step (a).

49. The method of claim 48, further comprising the step of:

(d) prohibiting read of the series of bits represented by said optical data structure, or portion thereof, if the optical storage disc is not authenticated at step (c).

50. The method of claim 48, further comprising re-reading the optical storage disc at a second locus.

51. The method of claim 48 wherein the data obtained in step (a) produces a signal that is inadequate to provide for an intended use of data stored on the disc.

52. The method of claim 48 wherein the data obtained in step (b) produces a signal that is adequate to provide for an intended use of data stored on the disc.

53. The method of claim 48 wherein the data obtained in step (a) comprises at least a portion of a file allocation statement.

54. The method of claim 48 wherein re-reading at the locus occurs within about one second of reading at the locus.

55. The method of claim 48 wherein re-reading at the locus occurs within about ten milliseconds of reading at the locus.

56. The method of claim 48 wherein re-reading at the locus occurs within about one millisecond of reading at the locus.

57. The method of claim 48 further comprising the step of:

providing the optical storage disc with a light-sensitive compound.

58. The method of claim 57 wherein the light-sensitive compound has an emission wavelength of less than about 848 nm.

59. The method of claim 57 wherein re-reading at the locus comprises reading a signal from the light-sensitive compound.

60. The method of claim 57 further comprising providing a light-sensitive compound in the optical path of the locus and an optical detector.

61. The method of claim 57 wherein the light-sensitive compound has a light emission wavelength detectable by a detector in an optical reader.

62. The method of claim 57 wherein the light-sensitive compound absorbs light that, in the absence of the light-sensitive compound, would be detected by a detector in an optical reader.

63. The method of claim 61 wherein a light emission from the compound provides at least a portion of the data obtained in step (b).

64. The method of claim 61 wherein the light-sensitive compound is excitable by light emitted by a light source in the optical reader.

65. The method of claim 57 wherein the light-sensitive compound has an emission wavelength from about 770 nm to about 830 nm.

66. The method of claim 57 wherein the light-sensitive compound has an emission wavelength of about 780 nm.

67. The method of claim 57 wherein the light-sensitive compound has an emission wavelength from about 630 nm to about 650 nm.

68. The method of claim 57 wherein the light-sensitive compound has an emission wavelength of about 530 nm.

69. The method of claim 57 wherein the light-sensitive compound has an emission wavelength in the near infrared range.

70. The method of claim 57 wherein the compound is luminescent.

71. The method of claim 57 wherein the compound is phosphorescent.

72. The method of claim 57 wherein the compound has an emission wavelength of about 780 nm, or about 530 nm, or both.

73. The method of claim 48 wherein the optical recording disc is selected from the group consisting of CD, CD-Audio, CD-ROM, CD-G, CD-i, CD-MO, CD-R, CD-RW, DVD, DVD-5, DVD-9, DVD-10, DVD-18, DVD-ROM and any optical recording disc.

74. The method of claim 57 wherein the compound comprises a cyanine compound.

75. The method of claim 57 wherein the compound is selected from the group comprising indodicarbocyanines, benzindodicarbocyanines or hybrids thereof.

107. The method of claim 48 wherein the optical recording disc comprises CD, CD-Audio, CD-ROM, CD-G, CD-i, CD-MO, CD-R, CD-RW, DVD, DVD-5, DVD-9, DVD-10, DVD-18, DVD-ROM and any optical recording disc.

108. The method of claim 107 wherein the optical recording disc is a CD.

109. The method of claim 107 wherein the optical recording disc is a CD-ROM.

110. The method of claim 107 wherein the optical recording disc is a DVD.

76. A method of authenticating optical storage disc including data structure, the method comprising:

reading the optical storage disc at a locus to obtain a first set of usable data from the data structure at the locus; and

re-reading the optical storage disc at the locus to obtain a second set of usable data, wherein the second set of usable data is different from the first set of usable data regardless of the data structure of the optical storage disc at the locus.

77. The method of claim 76 wherein reading or re-reading the optical storage disc at the locus to obtain data at the locus comprises reading or re-reading the optical storage disc at the locus to obtain a data bit.

78. The method of claim 76 wherein reading or re-reading the optical storage disc at the locus to obtain data at the locus comprises reading or re-reading the optical storage disc at the locus to obtain a data byte.

79. The method of claim 76 wherein reading or re-reading the optical storage disc at the locus to obtain data at the locus comprises reading or re-reading the optical storage disc at the locus to obtain a data frame.

80. The method of claim 76 wherein reading or re-reading the optical storage disc at the locus to obtain data at the locus comprises reading or re-reading the optical storage disc at the locus to obtain a data block.

81. The method of claim 76 wherein reading or re-reading the optical storage disc at the locus to obtain data at the locus comprises reading or re-reading the optical storage disc at the locus to obtain a data sector.

82. The method of claim 76 further comprising re-reading the optical storage disc at a second locus.

83. The method of claim 76 wherein the first set of data produces a signal that is inadequate to provide for an intended use of data stored on the disc.

84. The method of claim 76 wherein the second set of usable data produces a signal that is adequate to provide for an intended use of data stored on or in the disc.

85. The method of claim 76 wherein the second set of usable data comprises at least a portion of a file allocation statement.

86. The method of claim 76 wherein re-reading at the locus occurs within about one second of reading at the locus.

87. The method of claim 76 wherein re-reading at the locus occurs within about ten milliseconds of reading at the locus.

88. The method of claim 76 wherein re-reading at the locus occurs within about one millisecond of reading at the locus.

89. The method of claim 76 further comprising providing the optical storage disc with a light-sensitive compound.

90. The method of claim 89 wherein re-reading at the locus comprises reading a signal from the light-sensitive compound.

91. The method of claim 89 further comprising providing light-sensitive compound in the optical path of the locus and an optical detector.

92. The method of claim 89 wherein the light-sensitive compound has an emission wavelength at a wavelength detectable by an optical reader.

93. The method of claim 89 wherein the light-sensitive compound absorbs light that, in the absence of the light-sensitive compound, would be detected by a reader.

94. The method of claim 92 wherein a light emission from the light-sensitive compound provides at least a portion of the second set of usable data.

95. The method of claim 92 wherein the light-sensitive compound is excitable by light emitted by the optical reader.

96. The method of claim 89 wherein the light-sensitive compound has an emission wavelength from about 770 nm to about 830 nm.

97. The method of claim 89 wherein the light-sensitive compound has an emission wavelength of about 780 nm.

98. The method of claim 89 wherein the light-sensitive compound has an emission wavelength from about 630 nm to about 650 nm.

99. The method of claim 89 wherein the light-sensitive compound has an emission wavelength of about 530 nm.

100. The method of claim 89 wherein the light-sensitive compound has an emission wavelength in the near infrared range.

101. The method of claim 89 wherein the compound is luminescent.

102. The method of claim 89 wherein the compound is phosphorescent.

103. The method of claim 89 wherein the compound is excitable at a wavelength of about 780 nm or about 530 nm.

104. The method of claim 89 wherein the compound has an emission wavelength of about 780 nm, or about 530 nm, or both.

105. The method of claim 89 wherein the light-sensitive compound has an emission wavelength of less than about 848 nm.

106. The method of claim 89 wherein the compound has emission wavelengths of about 780 nm and about 530 nm.

111. The method of claim 89 wherein the compound comprises a cyanine compound.

112. The method of claim 89 wherein the compound comprises indodicarbocyanines, benzindodicarbocyanines or hybrids thereof.

113. The method of claim 89 wherein the compound comprises an indodicarbocyanine.

114. The method of claim 89 wherein the compound comprises a benzindodicarbocyanine.

115. The method of claim 89 wherein the compound comprises a hybrid of an indodicarbocyanine and a benzindodicarbocyanine.

116. A method of authenticating an optical storage disc, the disc having a first plane including data and a second plane having a light-sensitive compound, the method comprising:

reading data from the first plane on the optical storage disc;

exciting the light-sensitive compound in a second plane on the optical storage disc; and

reading data from the second plane of the optical storage disc.

117. The method of claim 116 comprising instructing a reader to alter a focal length of a laser.

118. A method of treating an optical storage disc comprising:

recording a first set of usable data on an optical storage disc;

applying a light-sensitive compound to the optical storage disc at a location on the optical storage disc so that the light-sensitive compound may cooperate with the first set of usable data; and

selectively activating at least a portion of the light-sensitive compound, wherein, in the activated state, the light-sensitive compound allows reading of the first set of data and wherein the light-sensitive compound is responsive to excitation to produce a second set of usable data that is different from the first set of usable data.

119. The method of claim 118 wherein the light-sensitive compound is activated b-v cross-linking.

120. The method of claim 119 wherein the light-sensitive compound is cross-linked by laser activation.

121. A method for dissuading the illicit copying of data stored on an optical data storage disc comprising a series of optical deformations representative of data, said method comprising the steps of:

introducing one or more physical changes into or on said optical data storage disc at selected positions on or within said optical data storage disc, wherein selected positions are mapped with respect to said optical deformations, and wherein said physical changes do not alter the physical structure of said optical deformations;

incorporating into the data stored on said optical data storage disc a program instruction set for detecting said physical changes in said optical data storage disc at said mapped positions and for effectuating read of said data stored on said optical data storage disc when said physical changes are determined to be present at said select positions on or within said optical data storage disc.

122. The method of claim 121 wherein said physical change comprises a light-sensitive compound placed on or in said optical data storage disc.

123. The method of claim 122 wherein the light-sensitive compound comprises a light absorptive compound.

124. The method of claim 122 wherein the light-sensitive compound comprises a light emissive compound.

125. The method of claim 122 wherein the light-sensitive compound comprises a phosphorescent compound.

126. The method of claim 122 wherein the light-sensitive compound has an emission wavelength at a wavelength detectable by a detector in an optical reader.

127. The method of claim 122 wherein the light-sensitive compound absorbs light that, in the absence of the light-sensitive compound, would be detected by a detector in an optical reader.

128. The method of claim 122 wherein the light-sensitive compound comprises cyanine compound.

129. The method of claim 122 wherein the light-sensitive compound comprises indodicarbocyanines, benzindodicarbocyanines, or hybrids thereof.

130. A method for dissuading the illicit copying of data stored on an optical data storage disc in an optical data structure, said method comprising the steps of:

introducing into or on said optical data storage capable disc a material capable of altering the data read of said optical data structure between a first data state represented by said optical data structure and a second data state not true to said optical data structure;

incorporating into the data stored on said optical data storage capable disc a program instruction set for detecting said first data state and said second data state and for effectuating read of said data stored on said optical data storage disc when said optical data storage capable disc displays said first data state and said second data state upon data read of said optical data storage disc.

131. The method of claim 130 wherein said material comprises a light-sensitive compound.

132. The method of claim 131 wherein the light-sensitive compound comprises a light absorptive compound.

133. The method of claim 131 wherein the light-sensitive compound comprises a light emissive compound.

134. The method of claim 131 wherein the light-sensitive compound comprises a phosphorescent compound.

135. The method of claim 131 wherein the light-sensitive compound has an emission wavelength at a wavelength detectable by a detector in an optical reader.

136. The method of claim 131 wherein the light-sensitive compound absorbs light that, in the absence of the light-sensitive compound, would be detected by a detector in an optical reader.

137. The method of claim 131 wherein the light-sensitive compound comprises cyanine compound.

138. The method of claim 131 wherein the light-sensitive compound comprises indodicarbocyanines, benzindodicarbocyanines, or hybrids thereof.

139. A method for dissuading the illicit copying of data stored on an optical data storage disc in an optical data structure representing a series of bits, said method comprising the steps of:

(a) reading the optical storage disc at a locus to obtain data true to the series of bits represented by the optical data structure at such locus;

(b) re-reading the optical storage disc at the locus to determine if the data obtained varies by one or more bits in the series of bits represented by the optical data structure at such locus; and

(c) dissuading copying of the optical storage disc if the data obtained in step (b) differs from the data in step (a).