公开(公告)号：US20210325175A1

公开(公告)日：2021-10-21

申请号：US16475626

申请日：2017-04-25

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

Inventor： Peter MOROVIC ,  Jan MOROVIC ,  Hector GOMEZ MINANO ,  Marcos CASALDALIGA ALBISU ,  Joan Jordi COLL SICLUNA

IPC: G01B11/30 ,  H04N1/00 ,  G01N21/86 ,  B41F33/00 ,  G01B11/24

Abstract: A method is described in which a reflection is obtained of a laser light pattern reflected from a substrate. A reflection of diffuse light may be obtained from the substrate. A first parameter may be determined, relating to the substrate from the reflected laser light pattern. A second parameter may be determined, relating to the substrate from the reflected diffuse light and a characteristic of the substrate may be determined from the first and second parameters. A print apparatus and a machine-readable medium are also disclosed.

公开(公告)号：US20210056367A1

公开(公告)日：2021-02-25

申请号：US16979048

申请日：2018-04-06

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

Inventor： Javier MAESTRO GARCIA ,  Jan MOROVIC ,  Peter MOROVIC

IPC: G06K15/02 ,  G01J3/46

Abstract: Certain examples described herein relate to mapping between an input color space and an output color space. In some cases, data representing a set of candidate output color values in the output color space is obtained for a transition region between two input color values in the input color space. A sub-region of the transition region is defined, the sub-region being associated with a target colorimetry and a target value of a metric. An output color value is selected from the set of candidate output color values. The output value has an associated value of the metric and an associated colorimetry. The selecting is based on the associated colorimetry and the target colorimetry, and the value of the metric and the target value of the metric. In some cases, mapping data is generated by assigning the selected output color value to the sub-region.

公开(公告)号：US20190064774A1

公开(公告)日：2019-02-28

申请号：US16074705

申请日：2016-10-21

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

Inventor： Jeffrey A. NIELSEN ,  Jan MOROVIC ,  Peter MOROVIC

IPC: G05B19/4099 ,  B29C64/393 ,  B33Y50/02

Abstract: In an example implementation, a method of multiple dispense technology 3D printing includes receiving digital model data representing an object. The method includes formatting the data into an Mvec (material vector) specification that includes an Mvec to specify a material component of a voxel. The Mvec can have an associated dispense technology (DT) index to identify one of multiple available dispense technologies for dispensing the material component.

公开(公告)号：US20180284725A1

公开(公告)日：2018-10-04

申请号：US15545280

申请日：2015-04-24

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

Inventor： Juan Manuel GARCIA REYERO VINAS ,  Jan MOROVIC ,  Peter MOROVIC

IPC: G05B19/4099 ,  B33Y50/02

Abstract: A method is described in which data representing a three-dimensional object to be printed is obtained. The data comprises sub-volumes representing the three-dimensional object. A characteristic for the three-dimensional object to be printed is identified. Based on the identified characteristic, property data is set for individual sub-volumes to be used in printing the three-dimensional object. The identified characteristic is a function of the property data. The property data comprises material property data, structural property data and printing property data.

公开(公告)号：US20180133972A1

公开(公告)日：2018-05-17

申请号：US15564405

申请日：2015-07-15

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

Inventor： Jan MOROVIC ,  Peter MOROVIC ,  Jay S. GONDEK

IPC: B29C64/393 ,  B33Y50/02 ,  B33Y30/00 ,  G05B19/4099

CPC classification number: B29C64/393 ,  B29C64/165 ,  B29C64/386 ,  B33Y30/00 ,  B33Y50/02 ,  G05B19/4099 ,  G05B2219/49023

Abstract: Certain examples described herein relate to producing three-dimensional objects using additive manufacturing systems. These examples combine the use of material volume coverage vectors to define object data with octree data structures and models for tracking material placement error and available volumes. Material volume coverage vectors correspond to a volumes of three-dimensional objects and define a probabilistic distribution of materials available to an additive manufacturing system including combinations of said materials. In certain examples, a bottom level of the error tracking octree model is constructed to contain at least a portion of the data values for a set of obtained material volume coverage vectors. This is then used in an error distribution process to generate manufacturing control data for the additive manufacturing system.

公开(公告)号：US20180086045A1

公开(公告)日：2018-03-29

申请号：US15545264

申请日：2015-04-28

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

Inventor： Peter MOROVIC ,  Jan MOROVIC

IPC: B33Y50/02 ,  H04N1/405

CPC classification number: B33Y50/02 ,  B29C64/386 ,  B33Y50/00 ,  G06F17/50 ,  H04N1/405

Abstract: Certain examples described herein relate to the use of three-dimensional threshold matrices in the production of three-dimensional objects. In one case, data values for a three-dimensional matrix for use in halftoning are assigned based on a structural volume coverage representation. In certain described cases, the structural volume coverage representation defines a probabilistic distribution of at least two different structures available for the production of the three-dimensional object. A convex combination of the at least two different structures is determined, based on data values of the structure volume coverage representation. A data value may be assigned to the three-dimensional matrix based on the convex combination determined. The resultant three-dimensional matrix is used in a halftoning operation to control a structure distribution in the three-dimensional object.

公开(公告)号：US20180052947A1

公开(公告)日：2018-02-22

申请号：US15544507

申请日：2015-04-23

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

Inventor： Juan Manuel GARCIA-REYERO VINAS ,  Jan MOROVIC ,  Peter MOROVIC ,  Alejandro Manuel DE PENA

IPC: G06F17/50 ,  B33Y50/00 ,  B29C64/386

CPC classification number: G06F17/50 ,  B29C64/00 ,  B29C64/386 ,  B29C64/40 ,  B33Y50/00

Abstract: Certain described examples relate to the generation of data for use in producing a three-dimensional object. Certain examples utilize lattice indexes to define a lattice associated with a particular portion of the three dimensional object. The lattice index may be used in a matrix generation operation that compares index values with threshold values to generate a three-dimensional lattice matrix. The three-dimensional lattice matrix is useable to instruct a structure of the three-dimensional object.

公开(公告)号：US20180052447A1

公开(公告)日：2018-02-22

申请号：US15544796

申请日：2015-04-28

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

Inventor： Peter MOROVIC ,  Jan MOROVIC

IPC: G05B19/4099 ,  H04N1/405 ,  B29C64/386 ,  B33Y50/00

CPC classification number: H04N1/405 ,  B29C64/386 ,  B33Y50/00 ,  B33Y50/02

Abstract: Certain examples described herein relate to the use of three-dimensional threshold matrices in the production of three-dimensional objects. In one case, data values for a three-dimensional matrix for use in halftoning are assigned based on a structural volume coverage representation. In certain described cases, the structural volume coverage representation defines a probabilistic distribution of at least two different structures available for the production of the three-dimensional object. A comparison is performed based on data values for the structural volume coverage representation. The output of the comparison is a data value to be assigned to the three-dimensional matrix. The resultant three-dimensional matrix is used in a halftoning operation to control a structure distribution in the three-dimensional object.

公开(公告)号：US20180018815A1

公开(公告)日：2018-01-18

申请号：US15544775

申请日：2015-04-24

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

Inventor： Peter MOROVIC ,  Jan MOROVIC ,  Juan Manuel GARCIA REYERO VINAS ,  Scott WHITE ,  Jun ZENG

IPC: G06T17/00 ,  G06F17/50

Abstract: Methods and apparatus relating to three-dimensional object models are described. In one example, (i) data representing a geometrical description of a three-dimensional object defining object geometry in a geometric space and (ii) at least one object property description describing an object property in an object property space are received. The object property space and the geometric space are intersected to define an object model, wherein an object property is defined at an intersection between a described object property and defined object geometry.

公开(公告)号：US20170365095A1

公开(公告)日：2017-12-21

申请号：US15544504

申请日：2015-04-16

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

Inventor： Peter MOROVIC ,  Jan MOROVIC ,  Jay S. GONDEK ,  Juan Manuel GARCIA REYERO VINAS

IPC: G06T17/10 ,  H04N1/405 ,  B33Y50/00

CPC classification number: G06T17/10 ,  B33Y50/00 ,  H04N1/405

Abstract: Certain examples described herein relate to a three-dimensional threshold matrix. The three-dimensional threshold matrix may be used for three-dimensional halftoning. In one example, values for a predefined two-dimensional threshold matrix are shifted with respect to a third dimension to provide the three-dimensional threshold matrix. In one example, the three-dimensional threshold matrix may then be processed in association with a digital representation of a three-dimensional object to output discrete material arrangement instructions for at least one production material. The instructions may be used to control an additive manufacturing system to produce the three-dimensional object.