11
William B Pennebaker, Joan L Mitchell, Frederick C Mintzer: Soft copy display of facsimile images. International Business Machines Corporation, Thomas P Dowd, December 5, 1989: US04885576 (11 worldwide citation)

Digital data defining images are stored in a multiplane buffer. The buffer may store plural images by restricting data corresponding to an image or image portion to storage in less than half the bit planes of the buffer. An image is displayed by reading data from the buffer and selectively passing o ...


12
Don Coppersmith, Frederick C Mintzer, Charles P Tresser, Samuel M Weber, Chai Wah Wu, Minerva Ming Yee Yeung: Secured signal modification and verification with privacy control. International Business Machines Corporation, Jesse L Abzug Esq, McGinn IP Law Group PLLC, August 29, 2006: US07100050 (10 worldwide citation)

A watermarking scheme is provided that allows the watermarked image to be authenticated by an authentication agent without revealing the human-readable content of the image. There is disclosed an approach that combines privacy control with watermarking and authentication mechanisms. The watermark ca ...


13
Ephraim Feig, Frederick C Mintzer: Redundancy scheme for Fourier transform coding on peak limited channels. International Business Machines Corporation, Sterne Kessler Goldstein & Fox, December 7, 1993: US05268938 (10 worldwide citation)

A system and method for fourier transform coding of data on peak limited channels using a redundancy scheme. The system and method section the data to be transmitted into contiguous blocks having sequence lengths of 2N. Each block is coded in the frequency domain and its Inverse Discrete Fourier Tra ...


14
Gordon W Braudaway, Frederick C Mintzer: Protecting images with multiple image watermarks. International Business Machines Corporation, Louis P Herzberg, June 13, 2006: US07062067 (4 worldwide citation)

The present invention provides methods and apparatus for imparting a multiplicity of watermarks onto a digitized image. The image includes a plurality of pixels, wherein each of the pixels includes brightness data that represents one brightness value if the image is monochrome, or a plurality of bri ...


15
Gordon W Braudaway, Frederick C Mintzer: Inserting and detecting watermarks in images derived from a source image. International Business Machines Corporation, Ido Tuchman, Lisa M Yamonaco, September 4, 2007: US07266216 (4 worldwide citation)

The present invention provides an image watermarking technique whereby a watermark is inserted into an adjusted digital source image that is bounded by a specific bounding rectangle. If the source image is larger than the rectangle, its dimensions are reduced by a common factor until it is the large ...


16
Gordon W Braudaway, Frederick C Mintzer: Marking images of text with speckle patterns for theft deterrence. International Business Machines Corporation, Brian Verminski, Hoffman Warnick, September 20, 2011: US08023159

The present invention provides methods and apparatus for embedding an identifying pattern of visible speckles into the digitized image of each page of a document. A speckle is a cluster of black or white pixels. Speckles are printed as black speckles on the white paper, or conversely, as areas of mi ...


17
Gordon W Braudaway, Frederick C Mintzer: Inserting and detecting watermarks in images derived from a source image. International Business Machines Corporation, Louis P Herzberg, Intellectual Property Law Dept, February 10, 2005: US20050031157-A1

The present invention provides an image watermarking technique whereby a watermark is inserted into an adjusted digital source image that is bounded by a specific bounding rectangle. If the source image is larger [smaller] than the rectangle, its dimensions are reduced [enlarged] by a common factor ...


18
Gordon W Braudaway, Frederick C Mintzer: Marking images of text with speckle patterns for theft deterrence. International Business Machines Corporation, Hoffman Warnick & D Alessandro, May 24, 2007: US20070115510-A1

The present invention provides methods and apparatus for embedding an identifying pattern of visible speckles into the digitized image of each page of a document. A speckle is a cluster of black or white pixels. Speckles are printed as black speckles on the white paper, or conversely, as areas of mi ...


19
Gordon W Braudaway, Frederick C Mintzer: Protecting images with multiple image watermarks. International Business Machines Corporation, Ibm Corporation, Intellectual Property Law Dept, July 10, 2003: US20030128860-A1

The present invention provides methods and apparatus for imparting a multiplicity of watermarks onto a digitized image. The image includes a plurality of pixels, wherein each of the pixels includes brightness data that represents one brightness value if the image is monochrome, or a plurality of bri ...


20
Gordon W Braudaway, Frederick C Mintzer: Marking images of text with speckle patterns for theft deterrence. Hoffman Warnick, January 22, 2009: US20090021795-A1

The present invention provides methods and apparatus for embedding an identifying pattern of visible speckles into the digitized image of each page of a document. A speckle is a cluster of black or white pixels. Speckles are printed as black speckles on the white paper, or conversely, as areas of mi ...