Steganographic system with changing operations

Details Steganographic system with changing operations Steganographic system with changing operations

2001-01-10

2003-05-20

Johns, Andrew W. (Department: 2621)

Image analysis

Applications

C380S252000

Reexamination Certificate

active

06567535

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to steganographic decoding systems, and more particularly relates to such systems whose steganographic decoding operations can be changed, such as with the passage of time, or with the occurrence of an event.
SUMMARY OF THE INVENTION
In accordance with certain embodiments disclosed herein, multi-bit auxiliary information is hidden in audio and imagery (e.g., digital photographs, video), using steganographic techniques. Such information can be used for various purposes, including identifying audio/imagery as originating from a particular source, copy control, etc. In some embodiments, operation of the system changes over time. This change may be triggered by various events, including passage of new information to the system through audio or imagery being processed.


REFERENCES:
patent: 3845391 (1974-10-01), Crosby
patent: 4495620 (1985-01-01), Steele et al.
patent: 4750173 (1988-06-01), Blüthgen
patent: 4775901 (1988-10-01), Nakano
patent: 4807031 (1989-02-01), Broughton et al.
patent: 4908873 (1990-03-01), Philibert et al.
patent: 5134496 (1992-07-01), Schwab et al.
patent: 5161210 (1992-11-01), Druyvesteyn et al.
patent: 5374976 (1994-12-01), Spannenburg
patent: 5394274 (1995-02-01), Kahn
patent: 5404160 (1995-04-01), Schober et al.
patent: 5467169 (1995-11-01), Morikawa
patent: 5559559 (1996-09-01), Jungo et al.
patent: 5721788 (1998-02-01), Powell et al.
patent: 5987127 (1999-11-01), Ikenoue et al.
patent: 6353672 (2002-03-01), Rhoads
patent: 0 058 482 (1982-08-01), None
patent: 0372 601 (1995-02-01), None
van Schyndel et al., “A Digital Watermark,”IEEE International Conference on Image Processing, Nov. 13-16, 1994, pp. 86-90.

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