Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2006-11-21
2006-11-21
Poon, King Y. (Department: 2624)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S001100, C382S162000, C382S167000
Reexamination Certificate
active
07139098
ABSTRACT:
A color printing system which deposits colors on a separation by separation basis provides trapping to correct misregistration between printer output colors due to imperfect placement of the separation colors. The system includes a trapping calculation processor, determining trapping requirements based on visibility, measured in a color space in which equivalent color differences in human color perception are approximately equivalent values.
REFERENCES:
patent: 4583116 (1986-04-01), Hennig et al.
patent: 4700399 (1987-10-01), Yoshida
patent: 4725966 (1988-02-01), Darby et al.
patent: 4931861 (1990-06-01), Taniguchi
patent: 5113249 (1992-05-01), Yosefi
patent: 5131058 (1992-07-01), Ting et al.
patent: 5204918 (1993-04-01), Hirosawa
patent: 5241396 (1993-08-01), Harrington
patent: 5295236 (1994-03-01), Bjorge et al.
patent: 5313570 (1994-05-01), Dermer et al.
patent: 5386223 (1995-01-01), Saitoh et al.
patent: 5386483 (1995-01-01), Shibazaki
patent: 5402530 (1995-03-01), Boenke et al.
patent: 5440652 (1995-08-01), Ting
patent: 5513300 (1996-04-01), Shibazaki
patent: 5542052 (1996-07-01), Deutsch et al.
patent: 5613046 (1997-03-01), Dermer
patent: 5615314 (1997-03-01), Schoenzeit et al.
patent: 5666543 (1997-09-01), Gartland
patent: 5668931 (1997-09-01), Dermer
patent: 6006013 (1999-12-01), Rumph et al.
patent: 6084684 (2000-07-01), Hamburg et al.
patent: 0445066 (1991-04-01), None
Lawler, “The Complete Book of Trapping”, Hayden Books, 1995, pp. 21 and 22.
A.R. Robertson, “Historical Development of CIE Recommended Color Difference Equations”, Color Research and Applications, 15, (3) Jun. 1990.
Zhang & Wandell, “A Spatial Extension of CIELab for Digital Color Image Reproduction”, SID 96.
Pham Thierry L.
Poon King Y.
Xerox Corporation
LandOfFree
System and method of trapping for correcting for separation... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method of trapping for correcting for separation..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method of trapping for correcting for separation... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3668619