| 摘要 |
Methods and apparatus for verifying the presence of original data in content. The method includes the steps of collecting data associated with the content, evaluating the collected data to verify the presence of original data in the content, and rejecting the content if a number of errors detected during the evaluating step exceeds a threshold number of errors. Certain aspects of the method may vary depending on whether the content is analog or digital. In an illustrative embodiment, a determination is made as to a number of sections of content to evaluate. This determination is preferably a function of a desired level of security. Each of the sections includes a watermark embedded therein which uniquely identifies a corresponding section and contains information which may be used to verify the presence of original data in the content. If the information does not verify correctly, an error counter is incremented. A random binding identification is destroyed if the error counter exceeds a threshold number of errors.
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