公开(公告)号：US11003166B2

公开(公告)日：2021-05-11

申请号：US16339824

申请日：2016-10-12

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Alex Carruesco Llorens ,  Alvar Vinacua ,  Pere Brunet ,  Sergio Gonzalez ,  Jordi Gonzalez Rogel ,  Marc Comino ,  Josep Giralt Adroher ,  Lluis Abello Rosello ,  Sebastia Cortes I Herms

IPC: G06T17/00 ,  G05B19/4099 ,  B33Y50/00 ,  G06T15/08

Abstract: In an example, a method includes receiving a first data model of an object to be generated in additive manufacturing, at a processor. Using the processor, a second data model may be determined. Determining the second data model may include generating for each of plurality of contiguous, non-overlapping sub-volumes of a volume containing the object, a sub-volume octree characterising the sub-volume and having a root node. Determining the second data model may further include generating a volume octree characterising the volume containing the object, the volume octree characterising in its lowest nodes the root nodes of the sub-volume octrees.

公开(公告)号：US20200050175A1

公开(公告)日：2020-02-13

申请号：US16339824

申请日：2016-10-12

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Alex Carruesco Llorens ,  Alvar Vinacua ,  Pere Brunet ,  Sergio Gonzalez ,  Jordi Gonzalez Rogel ,  Marc Comino ,  Josep Giralt Adroher ,  Lluis Abello Rosello ,  Sebastia Cortes I Herms

IPC: G05B19/4099 ,  B33Y50/00 ,  G06T17/00 ,  G06T15/08

Abstract: In an example, a method includes receiving a first data model of an object to be generated in additive manufacturing, at a processor. Using the processor, a second data model may be determined. Determining the second data model may include generating for each of plurality of contiguous, non-overlapping sub-volumes of a volume containing the object, a sub-volume octree characterising the sub-volume and having a root node. Determining the second data model may further include generating a volume octree characterising the volume containing the object, the volume octree characterising in its lowest nodes the root nodes of the sub-volume octrees.

公开(公告)号：US09936100B2

公开(公告)日：2018-04-03

申请号：US15128511

申请日：2014-03-31

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Juan Manuel Garcia Reyero Vinas ,  Jan Morovic ,  Peter Morovic ,  Lluis Abello Rosello

IPC: H04N1/405 ,  H04N1/60 ,  B41J29/38

CPC classification number: H04N1/4052 ,  B41J29/02 ,  B41J29/38 ,  G06K15/1881 ,  H04N1/40062 ,  H04N1/405 ,  H04N1/6086

Abstract: A printing system and method to process image data is disclosed. The printing system includes an identification module and image pipeline module include a linear threshold array algorithm and a halftoning algorithm to process the image data. An image pipeline module applies a linear threshold array algorithm to line regions and a halftoning algorithm to the non-line regions.

公开(公告)号：US20170361607A1

公开(公告)日：2017-12-21

申请号：US15543543

申请日：2015-04-24

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Joan Vidal Fortia ,  Lluis Abello Rosello ,  Ron Burns

IPC: B41J2/045 ,  B41J2/145

CPC classification number: B41J2/04535 ,  B41J2/04551 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/04586 ,  B41J2/04588 ,  B41J2/04593 ,  B41J2/145 ,  B41J2/2121 ,  B41J2/2128 ,  B41J2/2142

Abstract: The present disclosure relates to a printhead control system for a printer, wherein the printer includes at least one printhead comprising a plurality of nozzles for ejecting printing fluid, wherein the nozzles include high drop weight nozzles and low drop weight nozzles ejecting drops of different drop weight, and are each arranged to eject printing fluid on a print medium such as to print images in frame areas of the print medium and such as to clean nozzles in spit bar areas of the print medium; the printer further includes a transport unit for moving the print medium relative to the printhead, wherein the print medium includes frame areas for printing images and spit bar areas for cleaning the nozzles; the printhead control device including: a module to determine a first group of said nozzles located over a frame area of the print medium and a second group of said nozzles located over a spit bar area of the print medium; a module to operate the high drop weight nozzles of the first group such as to eject printing fluid and print an image in the frame area; a module to operate disable the low drop weight nozzles of the first group such as to not eject printing fluid in the frame area; and a module to operate the high drop weight nozzles and the low drop weight nozzles of the second group such as to alternately eject printing fluid in the spit bar area.

公开(公告)号：US20160224296A1

公开(公告)日：2016-08-04

申请号：US15092514

申请日：2016-04-06

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Lluis Abello Rosello ,  Kevin G. Currans ,  Jon Derek Roller ,  Jose M. Galmes ,  Cesar Fernandez Espasa ,  John A. Bertani ,  Matthew Alan MacClary ,  Santiago Garcia-Reyero Vinas ,  Daniel Edgar Robin ,  Steven Eric Sneller

IPC: G06F3/12 ,  G06K15/10 ,  G06K15/02

CPC classification number: G06F3/1275 ,  G06F3/1214 ,  G06F3/124 ,  G06F3/1247 ,  G06F3/1285 ,  G06F3/1293 ,  G06K15/102 ,  G06K15/1801 ,  G06K15/1814 ,  G06K15/1836 ,  G06K15/1853 ,  G06K15/1856 ,  G06K15/1857 ,  G06K15/1859 ,  G06K15/1873 ,  G06K15/1878

Abstract: A method of increasing data flow to a printing device includes, with a first raster image processor, converting a document into a first bitmap having a first dot density and representing a black color plane of the document; with a second raster image processor, converting the document into a second bitmap at a second dot density that is a relatively lower dot density than that of the first bitmap, the second bitmap representing other color planes of the document; and transmitting data of the first and second bitmaps to a printing device for printing to a print medium.

Abstract translation: 增加到打印设备的数据流的方法包括：利用第一光栅图像处理器将文档转换成具有第一点密度并且表示文档的黑色平面的第一位图; 利用第二光栅图像处理器，以比第一位图的点密度低的第二点密度将文档转换成第二位图，第二位图表示文档的其他色平面; 以及将第一和第二位图的数据发送到打印装置以打印到打印介质。