Disc serialization
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United States of America Patent
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Nov 5, 1996
Grant Date -
N/A
app pub date -
Dec 9, 1993
filing date -
Dec 9, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
Several approaches to serializing a disc may be used in the present invention. First, portions of a disc (such as sector(s) or track(s)) may be physically damaged to create a pattern of damage that somewhat uniquely identifies the disc. A number of different techniques may be used to damage the disc. For instance, laser devices may be used, sharp devices may be used or a master disc may be configured to create the damage. The physical damage may be used in conjunction with soft damage that is encoded in software on the disc. Alternatively, certain soft damage approaches may be used separately to serialize the disc.
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