公开(公告)号：US11504914B2

公开(公告)日：2022-11-22

申请号：US16608220

申请日：2018-06-04

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

Inventor： Xin Cheng ,  Vanessa Verzwyvelt ,  Arthur H. Barnes ,  Michael Crockett ,  Jake Wright ,  Morgan T. Schramm

IPC: B33Y50/02 ,  B29C64/393 ,  B29C64/264 ,  B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/165

Abstract: A system determines an object part density relative to a build region in a layer of build material used in an additive manufacturing machine, the object part density based on a relative portion of the build region where an energy absorbing agent is applied. The system controls a thermal characteristic of the build region in the layer of build material based on the determined object part density.

公开(公告)号：US11416184B2

公开(公告)日：2022-08-16

申请号：US17296043

申请日：2018-12-21

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

Inventor： David M. Berfanger ,  Jesse Sutherland ,  Wesley R. Schalk ,  Benjamin Hoopes ,  Morgan T. Schramm

IPC: G06F3/12 ,  H04N1/64

Abstract: Example printing devices and methods of the printing devices are disclosed. Target data is received responsive to imaging the source item. The source item includes a mark indicative of rendering information. The target data is used to detect the rendering information. The target object is output based on the target data and the rendering information.

公开(公告)号：US11826961B2

公开(公告)日：2023-11-28

申请号：US16075210

申请日：2017-07-10

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

Inventor： Hector Jose Lebron ,  Jake Wright ,  Stephen G. Rudisill ,  Matthew A. Shepherd ,  Vanessa Verzwyvelt ,  Morgan T. Schramm

IPC: B29C64/393 ,  G06T19/00 ,  G06F30/00 ,  B33Y50/00 ,  B33Y50/02 ,  G06F113/10

CPC classification number: B29C64/393 ,  B33Y50/00 ,  G06F30/00 ,  G06T19/00 ,  B33Y50/02 ,  G06F2113/10

Abstract: In an example, a method include receiving a data model of an object to be generated in additive manufacturing at a processor, the data model comprising object property data. A segmentation of a virtual build volume comprising at least a portion of the object into a plurality of nested segments may be derived. A first segment may be associated with first object generation parameters and a second segment may be associated with second, different, object generation parameters. A number of nested segments to be derived may be determined based on at least one of a geometry of the object and an intended object property.

公开(公告)号：US20220118709A1

公开(公告)日：2022-04-21

申请号：US17418790

申请日：2019-07-08

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

Inventor： Matthew A. Shepherd ,  Morgan T. Schramm ,  Vanessa Verzwyvelt ,  Dennis J Schissler ,  Xin Cheng ,  Jacob Wright

IPC: B29C64/393 ,  B29C64/165 ,  B29C64/343 ,  B33Y50/02

Abstract: In an example, a method includes segmenting, using a processor, a virtual volume comprising a representation of at least a part of an object to be generated in additive manufacturing. The virtual volume may be segmented into a plurality of segments and the object may be intended to have a first color. Additive manufacturing control instructions may be determined for the segments. The additive manufacturing control instructions may comprise instructions for distributing the print agent composition and the additive manufacturing control instructions for each segment may be determined based on the thermal properties of a print agent composition intended to provide the first color to compensate for variations in object dimensions associated with the thermal properties.

公开(公告)号：US20210402802A1

公开(公告)日：2021-12-30

申请号：US17294575

申请日：2019-03-01

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

Inventor： James M. Brenner ,  Loreal E. Camp ,  Morgan T. Schramm

IPC: B41J11/00

Abstract: Examples of curl compensation through selective ink usage are described. In an example, whether curling is likely to occur on a printed page may be determined. The page may be printed using a first ink lacking anti-curl properties and a second ink having anti-curl properties in response to determining that curling is likely to occur.

公开(公告)号：US20210331412A1

公开(公告)日：2021-10-28

申请号：US16608220

申请日：2018-06-04

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

Inventor： Xin Cheng ,  Vanessa Verzwyvelt ,  Arthur H. Barnes ,  Michael Crockett ,  Jake Wright ,  Morgan T. Schramm

IPC: B29C64/393 ,  B29C64/209 ,  B29C64/264 ,  B33Y50/02

Abstract: A system determines an object part density relative to a build region in a layer of build material used in an additive manufacturing machine, the object part density based on a relative portion of the build region where an energy absorbing agent is applied. The system controls a thermal characteristic of the build region in the layer of build material based on the determined object part density.

公开(公告)号：US11647146B2

公开(公告)日：2023-05-09

申请号：US17519913

申请日：2021-11-05

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

Inventor： Morgan T. Schramm ,  Ranjit Bhaskar ,  Jesse Otto Sutherland ,  Wesley R. Schalk

IPC: H04N1/60 ,  G06F3/12

CPC classification number: H04N1/603 ,  G06F3/1208 ,  H04N1/6008 ,  H04N1/6066

Abstract: Example color resources are generated. A first luminosity amount of a greyscale color in a greyscale color space is determined. The greyscale color corresponds with a transformation of a source color in a first color space converted to the greyscale color. The source color corresponding with a depletion color in a second color space, and the depletion color has a second luminosity amount. A target color in a color resource is generated via adjusting a black channel amount in the depletion color to match the second luminosity amount with the first luminosity amount. The target color to correspond with the source color in the color resource.

公开(公告)号：US11241837B2

公开(公告)日：2022-02-08

申请号：US16076240

申请日：2017-07-10

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

Inventor： Hector Lebron ,  Jake Wright ,  Stephen G. Rudisill ,  Matthew A. Shepherd ,  Vanessa Verzwyvelt ,  Morgan T. Schramm

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  B29C64/165 ,  G05B19/4099

Abstract: In an example, a virtual build volume comprising a representation of at least a part of an object to be generated in additive manufacturing is segmented into a plurality of nested segments comprising a core segment, an inner peripheral segment and an outer peripheral segment. Additive manufacturing control instructions may be generated for the nested segments. The control instructions for the core segment may provide a first region of the object corresponding to the core segment and having a first color. The control instructions for the outer peripheral segment may provide a second color for a second region of the object corresponding to the outer peripheral segment. The control instructions for the inner peripheral segment may provide a third color for a third region of the object corresponding to the inner peripheral segment, wherein a color of the third region is determined so as to at least partially visually mask the first region.

公开(公告)号：US20210409572A1

公开(公告)日：2021-12-30

申请号：US16609473

申请日：2018-05-15

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

Inventor： Morgan T. Schramm ,  Wesley R. Schalk ,  Ranjit Bhaskar

IPC: H04N1/405

Abstract: An image file is prepared for printing. The image file is received. The image file includes a cell having pixels. A pixel of the pixels of the cell corresponds with a command to apply a print substance to a medium. For the pixel, the command to apply the print substance is selectively replaced with a command to not apply the print substance.

公开(公告)号：US20210387460A1

公开(公告)日：2021-12-16

申请号：US17288523

申请日：2019-03-01

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

Inventor： Loreal E. Camp ,  James M. Brenner ,  Morgan T. Schramm

IPC: B41J2/205 ,  B41J2/045 ,  B41J11/00

Abstract: Examples of curl compensation through selective ink depletion are described. In an example, whether printing in a region of a page is likely to produce curling of the page may be determined based on a page location and a print density of the region. The region of the page may be printed with a depleted amount of an ink in response to determining that printing the region at the page location with the print density is likely to produce curling of the page.