Method and apparatus for encoding paper with information

Image analysis – Applications – Reading paper currency

Reexamination Certificate

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C283S072000, C382S276000

Reexamination Certificate

active

06608919

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to paper-making, and more particularly relates to techniques useful in encoding information in paper during its formation.
BACKGROUND AND SUMMARY OF THE INVENTION
Digital watermarking is a burgeoning science with an extensive literature. Some of it, by the present assignee, relates to texturing the surface of a paper to convey optically-detectable digital information.
The assignee's U.S. Pat. No. 5,850,481, for example, details how the micro topology of a paper can be shaped, e.g., by a Braille-like machine, to encode digital data. The assignee's application Ser. No. 09/127,502 details how the high-pressures used in intaglio printing can be used to similar effect.
In accordance with a preferred embodiment of the invention, paper is textured during the paper-making process, rather than in a subsequent process, thereby affording various advantages. The texture yields a known signature when transformed to the frequency domain. This signature can be used for various purposes, including determining the angular orientation of the paper when scanned and analyzed for the presence of watermark data, and for simple document recognition purposes (e.g., photocopiers that refuse to reproduce banknotes). One way of effecting the desired texturing is by shaping the surface of a de-watering element accordingly.


REFERENCES:
patent: 3569619 (1971-03-01), Simjian
patent: 3984624 (1976-10-01), Waggener
patent: 4230990 (1980-10-01), Lert, Jr. et al.
patent: 4234214 (1980-11-01), Lee
patent: 4238849 (1980-12-01), Gassmann
patent: 4296326 (1981-10-01), Haslop et al.
patent: 4297729 (1981-10-01), Steynor et al.
patent: 4313197 (1982-01-01), Maxemchuk
patent: 4367488 (1983-01-01), Laventer et al.
patent: 4379947 (1983-04-01), Warner
patent: 4380027 (1983-04-01), Leventer et al.
patent: 4395600 (1983-07-01), Lundy et al.
patent: 4425642 (1984-01-01), Moses et al.
patent: 4528588 (1985-07-01), Löfberg
patent: 4547804 (1985-10-01), Greenberg
patent: 4618257 (1986-10-01), Bayne et al.
patent: 4672605 (1987-06-01), Hustig et al.
patent: 4675746 (1987-06-01), Tetrick et al.
patent: 4682540 (1987-07-01), Eastman et al.
patent: 4739377 (1988-04-01), Allen
patent: 4750173 (1988-06-01), Blüthgen
patent: 4807031 (1989-02-01), Broughton et al.
patent: 4855827 (1989-08-01), Best
patent: 4879747 (1989-11-01), Leighton et al.
patent: 4888798 (1989-12-01), Earnest
patent: 4908836 (1990-03-01), Rushforth et al.
patent: 4908873 (1990-03-01), Philibert et al.
patent: 4910688 (1990-03-01), Amini
patent: 4944036 (1990-07-01), Hyatt
patent: 4947028 (1990-08-01), Gorog
patent: 4968386 (1990-11-01), Nguyen
patent: 4969041 (1990-11-01), O'Grady et al.
patent: 4971646 (1990-11-01), Schell et al.
patent: 4972476 (1990-11-01), Nathans
patent: 4977594 (1990-12-01), Shear
patent: 5023907 (1991-06-01), Johnson
patent: 5027401 (1991-06-01), Soltesz
patent: 5040059 (1991-08-01), Leberl
patent: 5053956 (1991-10-01), Donald
patent: 5062666 (1991-11-01), Mowry et al.
patent: 5094718 (1992-03-01), Friend
patent: 5095196 (1992-03-01), Miyata
patent: 5103459 (1992-04-01), Gilhousen et al.
patent: 5113445 (1992-05-01), Wang
patent: 5146457 (1992-09-01), Veldhuis et al.
patent: 5181786 (1993-01-01), Hujink
patent: 5200822 (1993-04-01), Bronfin et al.
patent: 5213337 (1993-05-01), Sherman
patent: 5216724 (1993-06-01), Suzuki et al.
patent: 5243423 (1993-09-01), DeJean et al.
patent: 5259025 (1993-11-01), Monroe
patent: 5280537 (1994-01-01), Sugiyama et al.
patent: 5288976 (1994-02-01), Citron
patent: 5291243 (1994-03-01), Heckman et al.
patent: 5295203 (1994-03-01), Krause et al.
patent: 5315098 (1994-05-01), Tow
patent: 5321470 (1994-06-01), Hasuo et al.
patent: 5374976 (1994-12-01), Spannenburg
patent: 5379345 (1995-01-01), Greenberg
patent: 5416307 (1995-05-01), Danek et al.
patent: 5428607 (1995-06-01), Hiller et al.
patent: 5428731 (1995-06-01), Powers
patent: 5449200 (1995-09-01), Andric et al.
patent: 5463209 (1995-10-01), Figh
patent: 5469222 (1995-11-01), Sprague
patent: 5469506 (1995-11-01), Berson et al.
patent: 5493677 (1996-02-01), Balogh
patent: 5495581 (1996-02-01), Tsai
patent: 5496071 (1996-03-01), Walsh
patent: 5502576 (1996-03-01), Ramsay et al.
patent: 5521722 (1996-05-01), Colvill et al.
patent: 5524933 (1996-06-01), Kunt et al.
patent: 5530759 (1996-06-01), Braudaway et al.
patent: 5530852 (1996-06-01), Meske, Jr. et al.
patent: 5568550 (1996-10-01), Ur
patent: 5583614 (1996-12-01), Hasuo
patent: 5583639 (1996-12-01), Hasuo
patent: 5583950 (1996-12-01), Prokoski
patent: 5594226 (1997-01-01), Steger
patent: 5598526 (1997-01-01), Daniel et al.
patent: 5613004 (1997-03-01), Cooperman et al.
patent: 5617119 (1997-04-01), Briggs et al.
patent: 5636292 (1997-06-01), Rhoads
patent: 5638443 (1997-06-01), Stefik
patent: 5640193 (1997-06-01), Wellner
patent: 5646999 (1997-07-01), Saito
patent: 5652626 (1997-07-01), Kawakami et al.
patent: 5659164 (1997-08-01), Schmid
patent: 5663766 (1997-09-01), Sizer, II
patent: 5664018 (1997-09-01), Leighton
patent: 5665951 (1997-09-01), Newman et al.
patent: 5668636 (1997-09-01), Beach et al.
patent: 5671282 (1997-09-01), Wolff et al.
patent: 5673316 (1997-09-01), Auerbach et al.
patent: 5687236 (1997-11-01), Moskowitz et al.
patent: 5710636 (1998-01-01), Curry
patent: 5719939 (1998-02-01), Tel
patent: 5721788 (1998-02-01), Powell et al.
patent: 5727092 (1998-03-01), Sandford, II et al.
patent: 5735547 (1998-04-01), Morelle et al.
patent: 5740244 (1998-04-01), Indeck et al.
patent: 5740276 (1998-04-01), Tomko et al.
patent: 5742845 (1998-04-01), Wagner
patent: 5745604 (1998-04-01), Rhoads
patent: 5761686 (1998-06-01), Bloomberg
patent: 5768426 (1998-06-01), Rhoads
patent: 5778102 (1998-07-01), Sandford, II et al.
patent: 5790693 (1998-08-01), Graves et al.
patent: 5790697 (1998-08-01), Munro et al.
patent: 5804803 (1998-09-01), Cragun et al.
patent: 5809160 (1998-09-01), Powell et al.
patent: 5809317 (1998-09-01), Kogan et al.
patent: 5815198 (1998-09-01), Vachtsevanos et al.
patent: 5817205 (1998-10-01), Kaule
patent: 5818441 (1998-10-01), Throckmorton et al.
patent: 5819289 (1998-10-01), Sanford, II et al.
patent: 5822436 (1998-10-01), Rhoads
patent: 5825871 (1998-10-01), Mark
patent: 5825892 (1998-10-01), Braudaway et al.
patent: 5835639 (1998-11-01), Honsinger et al.
patent: 5838458 (1998-11-01), Tsai
patent: 5841978 (1998-11-01), Rhoads
patent: 5848144 (1998-12-01), Ahrens
patent: 5848413 (1998-12-01), Wolff
patent: 5850481 (1998-12-01), Rhoads
patent: 5852673 (1998-12-01), Young
patent: 5857038 (1999-01-01), Owada et al.
patent: 5862218 (1999-01-01), Steinberg
patent: 5862260 (1999-01-01), Rhoads
patent: 5869819 (1999-02-01), Knowles et al.
patent: 5871615 (1999-02-01), Harris
patent: 5872589 (1999-02-01), Morales
patent: 5875249 (1999-02-01), Mintzer et al.
patent: 5893101 (1999-04-01), Balogh et al.
patent: 5898779 (1999-04-01), Squilla et al.
patent: 5900608 (1999-05-01), Iida
patent: 5902353 (1999-05-01), Reber et al.
patent: 5903729 (1999-05-01), Reber et al.
patent: 5905248 (1999-05-01), Russell et al.
patent: 5905251 (1999-05-01), Knowles
patent: 5905810 (1999-05-01), Jones et al.
patent: 5912972 (1999-06-01), Barton
patent: 5913210 (1999-06-01), Call
patent: 5915027 (1999-06-01), Cox et al.
patent: 5930767 (1999-07-01), Reber et al.
patent: 5932863 (1999-08-01), Rathus et al.
patent: 5933798 (1999-08-01), Linnartz
patent: 5933829 (1999-08-01), Durst et al.
patent: 5938726 (1999-08-01), Reber et al.
patent: 5938727 (1999-08-01), Ikeda
patent: 5939695 (1999-08-01), Nelson
patent: 5940595 (1999-08-01), Reber et al.
patent: 5949055 (1999-09-01), Fleet et al.
patent: 5950173 (1999-09-01), Perkowski
patent: 5963916 (1999-10-01), Kaplan
patent: 5971277 (1999-10-01), Cragun et al.
patent: 5974141 (1999-10-01), Saito
patent: 5974548 (1999-10-01), Adams
patent: 5978773 (1999-11-01), Hudetz et al.
patent: 5979757 (1999-11-01), Tracy et al.
patent: 5983218 (1999-11-01), Syeda-Mahmoo
patent: 5991426 (1999-11-01), Cox et al.
patent: 6005501 (1999-12-01), Wolosewicz
patent: 6035177 (2000-03-01), Moses et al.
patent

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