METHOD FOR HALFTONING USING A DIFFERENCE WEIGHTING FUNCTION

Details for Australian Patent Application No. 2002238064 (hide)

Owner LEXMARK INTERNATIONAL, INC.

Inventors COOPER, Brian, Edward

Pub. Number AU-A-2002238064

PCT Pub. Number WO2002/065755

Priority 09/781,843 12.02.01 US

Filing date 6 February 2002

Wipo publication date 28 August 2002

International Classifications

H04N 001/52 Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission - Circuits or arrangements for halftone screening

H04N 001/405 Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission - Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

H04N 001/40 Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission - Picture signal circuits

H04N 001/60 Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission - Colour correction or control

G06K 001/00 Methods or arrangements for marking the record carrier in digital fashion

G06K 015/02 Arrangements for producing a permanent visual presentation of the output data - using printers

G06T 011/20 Two dimensional (2D) image generation, e.g. from a description to a bit-mapped image - Drawing from basic elements, e.g. line, circle, chart

Event Publications

20 February 2003 Application Open to Public Inspection

  Published as AU-A-2002238064

12 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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