Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2011-06-28
2011-06-28
Rogers, Scott A (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S003140, C358S003220, C358S003230, C358S502000, C358S504000, C358S536000, C347S014000, C347S015000, C347S019000
Reexamination Certificate
active
07969617
ABSTRACT:
A method of producing a printed output on a substrate is provided using a drop emitting device which is adapted to emit a plurality of ink quantities in response to a control signal. The method comprises the steps of receiving image data corresponding to a pixel of an image to be printed, the received image data comprising a tone value; generating a threshold value for use in a screening operation based on the location of the pixel within the image to be printed; mapping the received tone value to a mapped tone value using a first tone mapping, the mapped tone value being generated based on the received tone value; performing the screening operation by comparing the mapped tone value with the threshold value; mapping the received tone value to a control signal value using a first control mapping if the output of the comparison performed in the previous step indicates a first relationship, the control signal value being generated based on the received tone value; and repeating the previous three steps if the output of the comparison performed in the previous step indicates a second relationship, wherein the first mapping step comprises using an alternate tone mapping and the second mapping step comprises using an alternate control mapping.
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FFEI Limited
Kenyon & Kenyon LLP
Rogers Scott A
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