Copy protected DVD and method for producing and validating same

Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction

Reexamination Certificate

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C713S193000, C714S784000

Reexamination Certificate

active

07069491

ABSTRACT:
A copy protected DVD disc and a method for producing and validating the DVD disc is provided. In an embodiment the method for protecting a DVD from being illegally copied includes producing a signature which includes introducing ambiguous symbols into an ECC block and partially disabling the error correction. A DVD encoder for use in producing the copy protected disc is also provided.

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