Local content security system

Details Local content security system Local content security system

2007-10-02

2007-10-02

Moise, Emmanuel L. (Department: 2137)

Cryptography

Video cryptography

Copy protection or prevention

C380S278000, C380S286000, C705S037000, C725S151000, C726S026000, C369S047120, C369S084000

Reexamination Certificate

active

10348903

ABSTRACT:
The present invention is a system for securing broadcasting content locally at receiving stations that may be remote to a broadcaster. Embodiments of this invention implement controllable and renewable security measures, compatible with many other content processing and display systems. These security measures may include re-encrypting received broadcast content using locally generated keys, watermarking the received broadcast content, and logging both processing and display of broadcast content.

REFERENCES:
patent: 5509071 (1996-04-01), Petrie et al.
patent: 5646999 (1997-07-01), Saito
patent: 5848158 (1998-12-01), Saito et al.
patent: 5915025 (1999-06-01), Taguchi et al.
patent: 5982892 (1999-11-01), Hicks et al.
patent: 5991399 (1999-11-01), Graunke et al.
patent: 6002772 (1999-12-01), Saito
patent: 6714650 (2004-03-01), Maillard et al.

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