Data storage in optical discs
First Claim
Patent Images
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).
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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.
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Citations
139 Claims
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1. A computer-readable disc, comprising:
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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).
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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. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 46, 47)
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12. An optical disc comprising:
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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. - View Dependent Claims (13, 14, 15, 16)
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17. An optical disc comprising:
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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. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45)
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40. The disc of 17 wherein activated light-sensitive compound is disposed under at least one portion of the locus.
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48. A method for authenticating an optical storage disc, comprising:
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(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). - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 107, 108, 109, 110)
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76. A method of authenticating optical storage disc including data structure, the method comprising:
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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. - View Dependent Claims (77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 111, 112, 113, 114, 115)
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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:
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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. - View Dependent Claims (117)
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118. A method of treating an optical storage disc comprising:
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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. - View Dependent Claims (119, 120)
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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:
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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. - View Dependent Claims (122, 123, 124, 125, 126, 127, 128, 129)
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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:
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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. - View Dependent Claims (131, 132, 133, 134, 135, 136, 137, 138)
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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:
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(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).
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Specification