Methods and apparatus for uniquely identifying a large...

Details Methods and apparatus for uniquely identifying a large... Methods and apparatus for uniquely identifying a large...

2007-12-11

2007-12-11

Fisher, Michael J. (Department: 3629)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C705S001100, C705S058000

Reexamination Certificate

active

10115335

ABSTRACT:
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 or 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.

REFERENCES:
patent: 5862260 (1999-01-01), Rhoads
patent: 6314409 (2001-11-01), Schneck et al.
patent: WO 99/62022 (1999-02-01), None
patent: WO 02/29510 (2002-04-01), None
patent: WO 02/19589 (2002-07-01), None

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