Invention Grant
- Patent Title: Serpentine direction reversal in bidirectional error diffusion halftoning
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Application No.: US15313161Application Date: 2014-05-29
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Publication No.: US09782978B2Publication Date: 2017-10-10
- Inventor: Bradley D Chung , Hsue-Yang Liu , Matthew A Shepherd , Mark H MacKenzie , Jason M Quintana
- Applicant: Hewlett-Packard Development Company, L.P.
- Applicant Address: US TX Houston
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Houston
- Agency: Law Office of Robert C. Sismilich
- International Application: PCT/US2014/039948 WO 20140529
- International Announcement: WO2015/183275 WO 20151203
- Main IPC: B41J2/21
- IPC: B41J2/21 ; B41J2/01 ; B41J2/505 ; B41J2/155 ; H04N1/23 ; B41J19/16 ; B41J2/145

Abstract:
A printer includes a printbar having plural dice partially overlap in the direction of rows and a halftoner. The dice receive nozzle firing data which determines when and where the individual print nozzles are to be operated in order to emit the colorant onto the media so as to form the desired printed image on a media. The halftoner is a bidirectional error diffusion halftoner that is structured to generate halftoned data. The halftoned data is mappable into the firing data. The halftoner includes a serpentine direction reverser which is structured to halftone print data image pixels in a first serpentine direction to form halftoned data and then to halftone print data image pixels in an opposite serpentine direction to form the halftoned data.
Public/Granted literature
- US20170151808A1 SERPENTINE DIRECTION REVERSAL IN BIDIRECTIONAL ERROR DIFFUSION HALFTONING Public/Granted day:2017-06-01
Information query
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