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公开(公告)号：US20200031047A1
公开(公告)日：2020-01-30
申请号：US16476247
申请日：2017-04-21
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Lluis ABELLO ROSELLO , Joan VIDAL FORTIA
IPC: B29C64/209 , B41J2/045 , B41J2/175
Abstract: A method of recirculating fluid in a printhead die is provided. The method comprises generating ejection data specifying a nozzle of the printhead from which a drop is to be ejected and storing the ejection data in a first memory. Recirculation data is generated for the nozzle for which a recirculation operation is to be performed, and the recirculation data is stored in a second memory different from the first memory. Fluid is recirculated in the nozzle on the basis of the recirculation data in advance of ejecting a drop from the nozzle on the basis of the ejection data. The recirculation data is generated based on the respective ejection data for the nozzle.
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公开(公告)号：US20200028992A1
公开(公告)日：2020-01-23
申请号：US16338181
申请日：2017-01-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter MOROVIC , Jan MOROVIC , Joan VIDAL FORTIA , Lluis ABELLO ROSELLO
Abstract: In an example, an image processing system may include an identification engine, a map engine, and a control engine. In that example, the identification engine may identify a color mapping resource in response to a classification identifier corresponding to image data, the map engine may map the image data with the color mapping resource having color space clause corresponding to the classification identifier, and the control engine may generate control data for operating a print apparatus to print based on the color mapping resource.
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公开(公告)号：US20190351618A1
公开(公告)日：2019-11-21
申请号：US16342503
申请日：2017-01-27
Inventor： Ruiyi MAO , Jan ALLEBACH , Wanling JIANG , Lluis ABELLO ROSELLO , Robert ULICHNEY , Utpal Kumar SARKAR
IPC: B29C64/386 , G06K15/02 , B29C64/112 , H04N1/52 , H04N1/405
Abstract: According to an example, an apparatus may include a processor and a memory. The memory may have stored thereon machine readable instructions that may cause the processor to access an initial halftone image of a three-dimensional (3D) object, the initial halftone image being generated from a continuous tone image of the 3D object. The instructions may also cause the processor to iteratively modify voxel data for the initial halftone image to identify updated voxel data that more accurately corresponds to the continuous tone image than the initial halftone image and to generate halftone image printing data for the 3D object containing the updated voxel data.
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公开(公告)号：US20190134914A1
公开(公告)日：2019-05-09
申请号：US16098293
申请日：2017-04-21
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Sergio GONZALEZ , Alex CARRUESCO LLORENS , Lluis ABELLO ROSELLO
IPC: B29C64/393 , B33Y50/02 , G05B19/4099 , B33Y30/00 , B29C64/188
Abstract: A method comprises receiving object model data in an original coordinate system to print within a predefined usable build volume of a three dimensional printer. The method comprises receiving at least one compensation factor for the object model data to compensate for any shrinking of an object. The method comprises scaling the object model data by the at least one compensation factor to provide printable object model data. The scaling is performed with reference to an origin at a centre of the usable build volume.
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公开(公告)号：US20190118480A1
公开(公告)日：2019-04-25
申请号：US16089628
申请日：2016-10-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Lluis ABELLO ROSELLO , Sergio GONZALEZ , Jordi GONZALEZ ROGEL
IPC: B29C64/393 , G06F17/50 , G06T17/10
Abstract: In an example, a method includes acquiring, at a processor, a first data model and a second data model. The first data model comprises a representation of at least one property of at least part of a first object and the second data model comprises a representation of at least one property of at least part of a second object. The first and second objects are to be generated in a common additive manufacturing operation. The method may include generating a first print layer model and a second, different, print layer model using the processor by combining at least parts of the first data model and the second data model and generating additive manufacturing instructions based on the first print layer model and the second print layer model.
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Patent Agency Ranking
公开(公告)号：US20240416649A1
公开(公告)日：2024-12-19
申请号：US18705029
申请日：2021-10-27
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Lluis ABELLO ROSELLO , Ramon VIEDMA PONCE , Borja NAVAS SANCHEZ
Abstract: A printing apparatus is disclosed herein. The apparatus comprises a chassis moveable on a surface through a motion control system, a receiver to receive a signal from a positioning module corresponding to a distance of the printing apparatus with respect to a reference; a printhead to selectively eject an amount of a printing fluid to the surface; and a controller. The controller is to determine the actual location of the printing apparatus with respect to a grid map representative of a part of the surface, the grid map including a plurality of nodal points with its corresponding height values; and to control the motion control system to move the chassis to a first surface location corresponding to a first nodal point of the grid map. The controller is further to obtain a vertical component value with respect to the reference at the surface location; and control the printhead to eject an amount of printing fluid at the surface location in a pattern indicative of an error between the vertical component value and the nodal point height.
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公开(公告)号：US20220375132A1
公开(公告)日：2022-11-24
申请号：US17772056
申请日：2019-12-03
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Lluis ABELLO ROSELLO , Pau COSTAL FORNELLS , Carlos FAJARDO SANCHEZ
Abstract: Examples relate to image processing, and performing fixed length format cell compression on a cell of a planar colour image based on an amount of white colour of the cell, the cell comprising a plurality of pixels, to obtain a compressed cell having four or fewer colour levels; and performing variable length format cell compression on the compressed cell to obtain a coded compressed cell.
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公开(公告)号：US20180069982A1
公开(公告)日：2018-03-08
申请号：US15569345
申请日：2015-07-28
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Jose GALMES , Lluis ABELLO ROSELLO , Joan VIDAL FORTIA , Frank E. PERDICARO
CPC classification number: H04N1/3875 , G06F3/1219 , G06F3/1251 , G06F3/1282 , G06K15/1848 , Y02D10/1592
Abstract: An example system includes a controller. The controller is to determine a first end point of a previous frame in a first image. The first image is to be printed on a first ribbon. The controller is to determine a second end point of the previous frame in a second image to be printed on a second ribbon. The controller is to create a current frame containing first image data from the first image starting after the first end point, second image data from the second image starting after the second end point, and third image data from a beginning of the first image. The system includes an image engine to form an image corresponding to the current frame on a medium.
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公开(公告)号：US20240335946A1
公开(公告)日：2024-10-10
申请号：US18720360
申请日：2021-12-16
Applicant: Hewlett-Packard Development Company, L.P.
CPC classification number: B25J9/1666 , B25J9/1661 , E01C23/222
Abstract: In an example, a method comprises receiving a digital representation of a floor plan to be printed by a surface marking robot guided using a remote guiding system, receiving guiding system position information, and receiving obstacle information identifying an obstacle. The method also comprises identifying a specific floor plan feature of the digital representation which intersects a shadow region of the obstacle from a guiding system point of view, and, in response to this, modifying the digital representation to produce a second digital representation, whereby the specific floor plan feature is either deleted or modified in the second digital representation, the modified floor plan feature excluding at least a portion of the specific floor plan feature in the shadow region. The method also comprises operating the surface marking robot to print the second digital representation using the guiding system.
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公开(公告)号：US20240208228A1
公开(公告)日：2024-06-27
申请号：US18557635
申请日：2021-04-28
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Gianni CESSEL , Carles CARMONA CALPE , Marcos CASALDALIGA ALBISU , Pablo Carmelo MENA RODRIGUEZ , Lluis ABELLO ROSELLO , Ma. Pilar VELAZQUEZ GOMEZ , Ricard SILVESTRE , Jaume VERGES LLAHI , Dorkaitz Alain VAZQUEZ FERNANDEZ , Jordina TORRENTS BARRENA , Maurizio BORDONE
CPC classification number: B41J2/16579 , B41J2/0451 , B41J2/04586 , B41J2/16535 , B41J2/2139 , B41J2/2142 , B41P2235/20
Abstract: A print apparatus is disclosed. The print apparatus comprises a print fluid application unit having a plurality of nozzles through which print fluid is to be deposited onto a printable medium during a printing operation. The print apparatus also comprises a nozzle cleaning surface to engage nozzles during a nozzle cleaning operation. The print apparatus also comprises a scanning unit and a controller. The controller is to control the print fluid application unit to deposit print fluid from nozzles of the plurality of nozzles according to an intended pattern onto the nozzle cleaning surface: control the scanning unit to scan the pattern formed on the nozzle cleaning surface: and responsive to determining. based on the scan, that print fluid from a nozzle of the plurality of nozzles has not been deposited according to the intended pattern, generate an instruction signal regarding maintenance of the print fluid application unit. A method and a machine-readable medium are also disclosed.
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