Digital information hiding techniques for use with data...

Details Digital information hiding techniques for use with data... Digital information hiding techniques for use with data...

2006-09-12

2006-09-12

Smithers, Matthew (Department: 2137)

Cryptography

Communication system using cryptography

Fiber optic network

C380S042000

Reexamination Certificate

active

07106862

ABSTRACT:
A data communication system transports a sequence of digital data frames that convey client input data encoded with secondary data. The system can utilize known, proprietary, or future techniques for digital data encoding, digital watermarking, data encryption, or the like. The secondary data can be frame alignment data, private data intended only for certain destination devices, and/or other data types. In a practical embodiment, the data frames are compliant with optical transport networks.

REFERENCES:
patent: 6430159 (2002-08-01), Wan et al.
patent: 2003/0079222 (2003-04-01), Boykin et al.
patent: 2004/0199772 (2004-10-01), Kwan
patent: 2005/0094640 (2005-05-01), Howe

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