METHOD OF COPY DETECTION AND PROTECTION USING TIME JUMPS

摘要

The invention relates to a method of copy detection of a record carrier wherein time stamps are assigned to information blocks stored on said record carrier. In order to provide a secure method for distinguishing between an original and a copy it is proposed according to the present invention that the timing of said time stamps assigned to subsequent information blocks comprises at least one discontinuity and that said at least one discontinuity is used to encode user information.