Inventor

TAI HWAI T

US7 patents

Patents

7 patents

US5054100AOct 1, 1991

Pixel interpolator with edge sharpening

EASTMAN KODAK CO177 citations97

US5087981AFeb 11, 1992

Error diffusion of overlapping dots

EASTMAN KODAK CO47 citations92

US5625460AApr 29, 1997

Method and apparatus for locally switching gray dot types to reproduce an image with gray level printing

EASTMAN KODAK CO45 citations91

US5477335ADec 19, 1995

Method and apparatus of copying of black text on documents using a color scanner

EASTMAN KODAK CO35 citations91

US5198910AMar 30, 1993

Mixed matrix image processing for rendering halftone images with variable dot sizes

EASTMAN KODAK CO12 citations73

US5020119AMay 28, 1991

System for producing serrated, alternating pixel pattern on character boundaries

EASTMAN KODAK CO19 citations73

US4959730ASep 25, 1990

False density contour suppression using randomly modified input signals for comparison to threshold values

EASTMAN KODAK CO14 citations73