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U.S. Patents
1. F.C. Mintzer, K.L. Anderson, and J.L. Mitchell, "Method for expansion of a Digital Image," U.S. patent 4,569,081, Feb. 1986. (5:6 enlargement) 2. K.L. Anderson, F.C. Mintzer, G. Goertzel, and J.L. Mitchell, "Method for Rotating a Binary Image," U.S. patent 4,627,020, Dec. 1986. (90 degree rotation) 3. K.L. Anderson, F.C. Mintzer, and G. Goertzel, "Fast Algorithm for Enlarging a Binary Image," U.S. patent 4,631,751, Dec. 1986. (enlargement by arbitrary factor) 4. K.L. Anderson and F.C. Mintzer, "Method for Reducing a Binary Image," U.S. patent 4,656,664, April 1987. (reduction by arbitrary factor) 5. Y.H. Chen, F.C. Mintzer, and K.S. Pennington, "System for Reproducing Mixed Images," U.S. patent 4,668,995, May 1987. (compressible halftones) 6. J.L. Mitchell, K.L. Anderson and F.C. Mintzer, "Image Rotation Method," U.S. patent 4,689,824, Aug. 1987. (180 degree rotation) 7. F.C. Mintzer and K.L. Anderson, "Image Reduction Method," U.S. patent 4,712,140, Dec. 1987. (6:5 reduction) 8. W.B. Pennebaker, J.L. Mitchell and F.C. Mintzer, "Softcopy Display of Facsimile Images," U.S. patent 4,885,576, Dec. 1989. 9. F.C. Mintzer, "Coupled Color Error Diffusion," U.S. patent 5,210,602, May 1993. 10. E. Feig and F.C. Mintzer, "Redundancy Scheme for Fourier Transform Coding of Peak Limited Channels," U.S. patent 5,268,938, Dec. 1993. 11. G.W. Braudaway, K.A. Magerlein, and F.C. Mintzer, "Color Correct Digital Watermarking of Images," U.S. patent 5,530,759, Jun. 1996. (visible watermark) 12. G.W. Braudaway, and F.C. Mintzer, "Protecting Images with an Invisible Image Watermark," U.S. patent 5,825,892, Oct. 1998. (robust invisible watermark) 13. F.C. Mintzer and M.M. Yeung, "An Invisible Image Watermark for Image Verification," U.S. patent 5,875,249, Feb. 1999. (fragile invisible watermark) 14. A.R. Rao and F.C. Mintzer, "Automatic Adjustment of Watermark Strength Based on Computed Image Texture," U.S. Patent 6,222,932, April 2001. (adjusting watermark strength) 15. D. Coppersmith, F.C. Mintzer, C.P. Tresser, C.W. Wu and M-Y Yeung, “Secure Signal Modification and Verification with Privacy Control,” U.S. Patent 6,256,736, Aug. 2001. (verification with |
16. G.W. Braudaway, and F.C. Mintzer, "Protecting Images with an Image Watermark," U.S. patent 6,577,744, Jun 2003. 17. A.R. Rao and F.C. Mintzer, "Smoothing Calibration Files to Improve Reproduction of Digitized Images," U.S. Patent 6,400,468, June 2002. (white field smoothing) 18. A.R. Rao, F.C. Mintzer, and G. Thompson, "Method and Apparatus for Repurposing Binary Images," U.S. Patent 6,663,411, Oct. 2003. (descreening) 19. G.W. Braudaway et. al., “Color Calibration of Displays,” U.S. Patent 6,690,383, Feb. 2004. (LCD calibration) 20. G.W. Braudaway, M. Martens, F.C. Mintzer, J.B. Shearer, C.P. Tresser, and C.W. Wu, “Watermarks for Customer Identification,” U.S. Patent 6,807,634, Oct. 2004. 21. A.R. Rao and F.C. Mintzer, "Smoothing Calibration Files to Improve Reproduction of Digitized Images," U.S. Patent 6,714,321, March 2004. (white field smoothing) 22. G.W. Braudaway and F.C. Mintzer, "Composing a Realigned Image," U.S. Patent 6,915,432, July 2005. (automatic realignment). 23. G.W. Braudaway and F.C Mintzer, “Protecting Images with an Image Watermark,” U.S. Patent 7,130,442, Oct. 2006, (robust invisible watermark) 24. G.W. Braudaway and F.C. Mintzer, “Protecting Images with Multiple Image Watermarks,” U.S. Patent 7,062,067, June 2006. (multiple watermarks). 25. D. Coppersmith, F.C. Mintzer, C.P. Tresser, C.W. Wu and M-Y Yeung, “Secure Signal Modification and Verification with Privacy Control,” U.S. Patent 7,1000,050, Aug. 2006. (verification with privacy) 26. G.W. Braudaway and F.C. Mintzer, “Inserting and Detecting Watermarks in Images Derived from a Source Image,” U.S. Patent 7,266,216, Sept. 2007. (watermarking system) 27. G.W. Braudaway and F.C Mintzer, “Protecting Images with an Image Watermark,” U.S. Patent 7,583,814, Sept. 2009. 28. J.O. Kephardt, J. Lenchner, F.C. Mintzer, M.W. Munger, and J.Q. Trelewicz, “Policy Based System and Method for Optimizing Output Device Submission, Use, and Wait Times, US Patent 8,134,724, Sept. 2008 (policy based printing) 29. G. W. Braudaway and F.C. Mintzer, “Marking Images of Text with Speckle Patterns for Theft Deterrence, U.S. Patent 8,023,159, Sept. 2011. (speckle marking for security) 30. G.W. Braudaway and F.C. Mintzer, "Digitally Watermarked Compressed Video Image Sequences," U.S. Patent 10,958,926, Mar. 2021. |