Additional-data embedding apparatus and additional-data...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C713S173000, C380S232000, C380S238000

Reexamination Certificate

active

10223532

ABSTRACT:
The present invention provides an additional-watermark embedding apparatus for embedding predetermined additional data into original data. The additional-watermark embedding apparatus includes an adder for summing the original data and the additional data, a first amplifier for amplifying the original data according to a predetermined non-linear input-output characteristic, a second amplifier for amplifying the summed data supplied from the adder according to a predetermined non-linear input-output characteristic, a subtractor for taking the difference between the amplified data obtained by the second amplifier and the amplified original data obtained by the first amplifier, and an embedder for embedding modified additional data which is obtained by modifying the waveform of the additional data according to the original data and which is supplied from the subtractor into the original data.

REFERENCES:
patent: 3651268 (1972-03-01), Rivkin
patent: 5073925 (1991-12-01), Nagata et al.
patent: 5216724 (1993-06-01), Suzuki et al.
patent: 5319735 (1994-06-01), Preuss et al.
patent: 5530759 (1996-06-01), Braudaway et al.
patent: 5568570 (1996-10-01), Rabbani
patent: 5613004 (1997-03-01), Cooperman et al.
patent: 5646997 (1997-07-01), Barton
patent: 5664018 (1997-09-01), Leighton
patent: 5748763 (1998-05-01), Rhoads
patent: 5809139 (1998-09-01), Girod et al.
patent: 5825892 (1998-10-01), Braudaway et al.
patent: 5848155 (1998-12-01), Cox
patent: 5859920 (1999-01-01), Daly et al.
patent: 5889868 (1999-03-01), Moskowitz et al.
patent: 5915027 (1999-06-01), Cox et al.
patent: 6031914 (2000-02-01), Tewfik et al.
patent: 6037984 (2000-03-01), Isnardi et al.
patent: 6061793 (2000-05-01), Tewfik et al.
patent: 6154571 (2000-11-01), Cox et al.
patent: 6233347 (2001-05-01), Chen et al.
patent: 6240121 (2001-05-01), Senoh
patent: 6246439 (2001-06-01), Zink et al.
patent: 6341350 (2002-01-01), Miyahara et al.
patent: 6359573 (2002-03-01), Taruguchi et al.
patent: 6385329 (2002-05-01), Sharma et al.
patent: 6434322 (2002-08-01), Kimura et al.
patent: 6522771 (2003-02-01), Rhoads
patent: 6526385 (2003-02-01), Kobayashi et al.
patent: 6782191 (2004-08-01), Ikeda et al.
patent: 6823074 (2004-11-01), Sugaya et al.
patent: 2002/0027994 (2002-03-01), Katayama et al.
patent: 2002/0150247 (2002-10-01), Linnartz et al.
patent: 11-284836 (1999-10-01), None
patent: 2000-270204 (2000-09-01), None
Ingemar J. Cox, Joe Kilian, Tom Leighton, and Talal Shamoon: A Secure, Robust Watermark for Multimedia, (May 1996).
V. Darmstaedter, J. F. Delaigle, D. Nicholson, B. Macq: Low Cost Watermarking Technique Optimized by Tests in Real Conditions and Simulations.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Additional-data embedding apparatus and additional-data... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Additional-data embedding apparatus and additional-data..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Additional-data embedding apparatus and additional-data... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3838334

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.