Facsimile and static presentation processing – Natural color facsimile – Color correction
Reexamination Certificate
2003-04-07
2009-02-24
Haskins, Twyler L (Department: 2625)
Facsimile and static presentation processing
Natural color facsimile
Color correction
C358S504000
Reexamination Certificate
active
07495812
ABSTRACT:
The invention relates to a printing device and a method of operating the printing device, it being possible for the following steps to be carried out: printing a calibration print by means of the printing device, the calibration print having a plurality of measuring areas with different colour mixture relationships, spectrophotometric measurement of the measuring areas, producing a colour profile, the spectrophotometric measurement of the measuring areas being carried out at a plurality (N) of measuring times (Tn), producing a colour profile which is extended by a description of the behaviour over time and which comprises a plurality of colour profiles in each case associated with a measuring time, and setting the colour mixture relationships of the printing device on the basis of the colour profile extended by a description of the behaviour over time.
REFERENCES:
patent: 6178007 (2001-01-01), Harrington
patent: 2002/0180996 (2002-12-01), Allen et al.
patent: 0398502 (1990-11-01), None
patent: 0854638 (1998-07-01), None
patent: 1178670 (2002-02-01), None
Electronics For Imaging, Inc.
Glenn Michael A.
Glenn Patent Group
Haskins Twyler L
Reinier Barbara D
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