METHODS AND APPARATUS FOR UNIQUELY IDENTIFYING A LARGE NUMBER OF FILM PRINTS
    30.
    发明公开
    METHODS AND APPARATUS FOR UNIQUELY IDENTIFYING A LARGE NUMBER OF FILM PRINTS 审中-公开
    法,制膜拷贝的大量独特识别装置

    公开(公告)号:EP1523848A4

    公开(公告)日:2006-11-08

    申请号:EP03746066

    申请日:2003-03-31

    摘要: A method and apparatus for generating many uniquely identifiable media copies from a few uniquely marked masters to reduce the expense of subjecting each media copy to a marking process while maintaining the ability to trace unauthorized copies back to an authorized source. A number of masters of a film or media presentation are digitally or optically marked with identifiers to distinguish each master from each other master. The identifiers provide the ability to distinguish corresponding partitions of segments among masters. The masters with their identifiers are then duplicated. Final media prints are then assembled by combining segments with the duplicated identifiers from various masters in a manner to form segments with unique identifier sequences. Thus, each final print may be distinguished from each other final print by their identifier sequences.