Image analysis – Applications
Reexamination Certificate
2006-02-07
2006-02-07
Johns, Andrew W. (Department: 2621)
Image analysis
Applications
C235S491000
Reexamination Certificate
active
06996252
ABSTRACT:
A physical object is embedded with a first digital watermark component and a second digital watermark component. The first component is printed using a first ultraviolet (UV) ink. The first UV ink includes a first fluorescence decay time. The second component is printed using a second UV ink. The second ink includes a second fluorescence decay time, which is longer than the first decay time. The embedded media is illuminated with a UV pulse. The first component is detected after the first emission decay time, but before the second emission decay time.
REFERENCES:
patent: 5210411 (1993-05-01), Oshima et al.
patent: 5521722 (1996-05-01), Colvill et al.
patent: 5719948 (1998-02-01), Liang
patent: 6115494 (2000-09-01), Sonoda et al.
patent: 6263438 (2001-07-01), Walker et al.
patent: 6314192 (2001-11-01), Chen et al.
patent: 6320675 (2001-11-01), Sakaki et al.
patent: 6332031 (2001-12-01), Rhoads et al.
patent: 6332194 (2001-12-01), Bloom et al.
patent: 6334187 (2001-12-01), Kadono
patent: 6373965 (2002-04-01), Liang
patent: 6374965 (2002-04-01), Connolly
patent: 6390362 (2002-05-01), Martin
patent: 6394358 (2002-05-01), Thaxton et al.
patent: 6402986 (2002-06-01), Jones, II et al.
patent: 6441380 (2002-08-01), Lawandy
patent: 6481753 (2002-11-01), Van Boom et al.
patent: 6578712 (2003-06-01), Lawandy
patent: 6590996 (2003-07-01), Reed et al.
patent: 6700995 (2004-03-01), Reed
patent: 6718046 (2004-04-01), Reed et al.
patent: 6721440 (2004-04-01), Reed et al.
patent: 6763123 (2004-07-01), Reed et al.
patent: 6763124 (2004-07-01), Alattar et al.
patent: 6804377 (2004-10-01), Reed et al.
patent: 6832783 (2004-12-01), Lawandy
patent: 6874639 (2005-04-01), Lawandy
patent: 2003/0005304 (2003-01-01), Lawandy et al.
patent: 2003/0012562 (2003-01-01), Lawandy et al.
patent: 2003/0056104 (2003-03-01), Carr et al.
patent: 0 234 885 (1987-09-01), None
patent: WO 95/13597 (1995-05-01), None
Battiato et al., “Robust Watermarking for Images Based on Color Manipulation,” IH/99 LNCS 1768, pp. 302-317, 2000.
Bender et al., “Applications for Data Hiding,” IBM Systems Journal, vol. 39, Nos 3&4, 2000, pp. 547-568.
Brownell, “Counterfeiters Dye Over Security Measures,” SPIE's OE Magazine, Sep. 2001, pp. 8-9.
Fleet et al., “Embedding Invisible Information in Color Images,” Proc. Int. Conf. on Image Processing, vol. 1, pp. 532-535, Oct., 1997.
Hunt, “The Reproduction of Colour in Photography, Printing & Television,” 1987, pp. 588, 589 and Plate 35.
Kohda et al., “Digital Watermarking Through CDMA Channels Using Spread Spectrum Techniques,” 2000 IEEE, pp. 671-674.
Komatsu et al., “A Proposal on Digital Watermark in Document Image Communication and Its Application to Realizing a Signature,” Electronics and Communications in Japan, Part 1, vol. 73, No. 5, 1990, pp. 22-33.
Komatsu et al., “Authentication System Using Concealed Image in Telematics,” Memoirs of the School of Science & Engineering, Waseda Univ., No. 52, 1988, pp. 45-60.
ORuanaidh et al, “Watermarking Digital Images for Copyright Protection,” www.kalman.mee.tcd.ie/people/jjr/eva—pap.html, Feb. 2, 1996, 8 pages.
Piva et al., “Exploiting the Cross-Correlation of RGB-Channels for Robust Watermarking of Color Images,” 1999 IEEE, pp. 306-310.
Berkley, Jr. Lou H.
Reed Alastair M.
Digimarc Corporation
Digimarc Corporation
Johns Andrew W.
LandOfFree
Low visibility watermark using time decay fluorescence does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low visibility watermark using time decay fluorescence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low visibility watermark using time decay fluorescence will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3680818