Systems and methods for optical media modification
First Claim
1. A method for modifying an optical path of an optical medium, the optical medium including a first layer adjacent a data layer comprising:
- selecting a region of the first layer to be distorted; and
distorting the region of the first layer such that a reading operation of data stored in the first layer corresponding to the distorted region is modified.
2 Assignments
0 Petitions
Accused Products
Abstract
Theft, distribution, and piracy of digital content on optical media (software, video, audio, e-books, any content of any kind that is digitally stored and distributed) is often accomplished by copying it directly to another disc using commonly available copy tools and recordable optical media, or the copying of media to another mass manufactured disc. Methods which cause the copy process to become lengthy and inconvenient, or which produce copies that are significantly measurably different from the original and therefore be recognizable as copies, may deter or prevent an unauthorized individual from making copies. This offers significant advantages to content creators who wish to protect their products.
79 Citations
55 Claims
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1. A method for modifying an optical path of an optical medium, the optical medium including a first layer adjacent a data layer comprising:
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selecting a region of the first layer to be distorted; and
distorting the region of the first layer such that a reading operation of data stored in the first layer corresponding to the distorted region is modified. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55)
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29. An optical medium having a modified optical path comprising:
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a first layer adjacent a data layer; and
a distorted region formed at the first layer such that a reading operation of data stored in the first layer corresponding to the distorted region is modified.
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Specification