Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2003-03-31
2011-10-04
Moore, David K (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S536000, C358S533000, C358S450000, C358S538000, C358S534000, C347S043000, C345S589000, C345S590000
Reexamination Certificate
active
08031363
ABSTRACT:
Methods and apparatus are provided for dynamically halftoning image data, substantially in real-time. Halftone threshold values are calculated and stored in memory, and halftone output values are calculated for the portions of the image data that will be displayed on a display device. Halftone screen parameters may be modified, and new halftone screen threshold values may be calculated for any affected halftone screens. For unaffected halftone screens, the previously stored threshold values may be retrieved from memory. In addition, the portion of the image to be displayed may be modified, and the halftone output values of the new portion may be calculated and then displayed.
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Falk Richard A.
Macy David
Marsden Jonathan
Electronics for Imaging, Inc.
Glenn Michael A.
Glenn Patent Group
Moore David K
Vo Quang N
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