Inventor
MINTZER FREDERICK C
US17 patents
⚠️ This page may combine multiple inventors who share the name “MINTZER FREDERICK C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IBM
16 patentsUS6807634B1Oct 19, 2004
Watermarks for customer identification
IBM78 citations97
US5530759AJun 25, 1996
Color correct digital watermarking of images
IBM652 citations97
US4668995AMay 26, 1987
System for reproducing mixed images
IBM153 citations97
US7100050B1Aug 29, 2006
Secured signal modification and verification with privacy control
IBM22 citations92
US5268938ADec 7, 1993
Redundancy scheme for Fourier transform coding on peak limited channels
IBM27 citations92
US5210602AMay 11, 1993
Coupled-color error diffusion
IBM36 citations92
US4712140ADec 8, 1987
Image reduction method
IBM40 citations92
US4656664AApr 7, 1987
Method for reducing a binary image
IBM28 citations92
US4627020ADec 2, 1986
Method for rotating a binary image
IBM34 citations92
US4569081AFeb 4, 1986
Method for expansion of a digital image
IBM34 citations92
US4689824AAug 25, 1987
Image rotation method
IBM20 citations79
US4885576ADec 5, 1989
Soft copy display of facsimile images
IBM13 citations74
US7266216B2Sep 4, 2007
Inserting and detecting watermarks in images derived from a source image
IBM9 citations73
US7062067B2Jun 13, 2006
Protecting images with multiple image watermarks
IBM9 citations73
US10958926B2Mar 23, 2021
Digitally watermarked compressed video image sequences
IBM0 citations62
US8023159B2Sep 20, 2011
Marking images of text with speckle patterns for theft deterrence
IBM2 citations62