Abstract: In an example, a method includes, by one or more processors, receiving a greyscale image having a plurality of pixels, each pixel being associated with a grey level, and the greyscale image having a first number of grey levels. An order of the pixels may be determined based on the grey level. A second number of grey levels may be determined, wherein the second number of grey levels is greater than the first number, and an indication of a target number of pixels per grey level of the second number of grey levels may be further be determined. Taking the pixels in order, and based on the target number of pixels per grey level, a new grey level may be allocated to each pixel to provide the second number of grey levels. The new grey levels may be converted to a threshold of a threshold halftone screen.
Type:
Grant
Filed:
January 30, 2020
Date of Patent:
April 9, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Abstract: In an example, a tangible machine-readable medium stores instructions which, when executed by a processor, cause the processor to evaluate a plurality of possible object generation arrangements based on a default separation distance and an enhanced separation distance, wherein the enhanced separation distance is used to assess predefined object sub-portions.
Type:
Grant
Filed:
December 14, 2018
Date of Patent:
April 9, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Quim Muntal Diaz, Manuel Freire Garcia, Enrique Gurdiel Gonzalez
Abstract: Examples disclosed herein relate to receiving a request to initiate a new subscription for an entity, determining whether the entity is associated with an existing subscription, and in response to determining that the entity is associated with the existing subscription, initiating the new subscription with a subscription period coinciding with the existing subscription.
Type:
Grant
Filed:
July 16, 2020
Date of Patent:
April 9, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
David Taylor, Noah Michael Collins, Shiyun Yie, Riley Dasch
Abstract: An example system includes: a landmark detection engine to detect landmark positions of landmarks in images based on facial detection; an optical flow landmark engine to determine the landmark positions in the images based on optical flow of the landmarks between the images; a landmark difference engine to determine, for a landmark in a given image: a distance between a detected landmark position and an optical flow landmark position of the landmark; and a weighted landmark determination engine to determine, for a first and second image, a position for the landmark in the second image based on: a respective detected landmark position and a respective optical flow position of the landmark in the second image; and respective distances, determined with the landmark difference engine, between a first detected landmark position of the landmark in the first image and respective optical flow landmark positions for the first and second images.
Type:
Grant
Filed:
June 28, 2019
Date of Patent:
April 9, 2024
Assignees:
Hewlett-Packard Development Company, L.P., Purdue Research Foundation
Inventors:
Yang Cheng, Xiaoyu Xiang, Shaoyuan Xu, Qian Lin, Jan Philip Allebach
Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes a substrate and fluid actuators, the fluid actuators being disposed on the substrate. The fluidic die also includes a bond pad region defined on the substrate. The bond pad region includes a high aspect ratio power delivery bond pad with multiple bonding sites and a high aspect ratio power return bond pad with multiple bonding sites.
Type:
Grant
Filed:
March 9, 2020
Date of Patent:
April 9, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Eric Thomas Martin, Gary G. Lutnesky, James R. Przybyla, Rogelio Cicili
Abstract: A coated metal alloy substrate, a process for producing a coating a metal alloy substrate, and an electronic device having a housing comprising a coated metal alloy substrate are described. The coated metal alloy substrate comprises a passivation layer deposited on the metal alloy substrate, a porous conductive water borne carbon nanotube layer on the passivation layer, and an electrophoretic deposition layer deposited on the porous conductive water borne carbon nanotube layer.
Type:
Grant
Filed:
June 11, 2019
Date of Patent:
April 9, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Kuan-Ting Wu, Hsing-Hung Hsieh, Super Liao
Abstract: A print liquid supply interface structure is provided, to fluidically connect a fluid supply container to a receiving station, comprising a liquid channel having at least one liquid channel wall, the liquid channel including a liquid interface, and at least one key pen next and parallel to the needle receiving portion of the liquid channel. In another example a key pen structure is provided. In yet another example an interface structure for receiving a separate key pen is provided.
Type:
Grant
Filed:
April 19, 2023
Date of Patent:
April 9, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Judson M. Leiser, Miquel Boleda Busquets, Bernd Karlsboeck, David Olsen, Michael E. Peterschmidt
Abstract: One example of an internet protocol (IP) keyboard, video, mouse (KVM) device includes a universal serial bus, a display port, a network port, and a processor. The USB port is to be communicatively coupled to a host device. The display port is to be communicatively coupled to the host device. The network port is to be communicatively coupled to a network. The processor is communicatively coupled to the USB port, the display port, and the network port. The processor is to receive, via the display port, a multi-stream transport (MST) DisplayPort signal; demux the MST DisplayPort signal to provide a plurality of individual video streams; and output, via the network port, each individual video stream.
Type:
Grant
Filed:
October 20, 2020
Date of Patent:
April 9, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Eric John Gressman, Douglas A Reynolds, Peter Andrew Seiler, Byron A Alcorn, Gregory Mark Hughes, J. Michael Stahl, Patrick S Anderson, Joseph-Jonathan Salzano
Abstract: The location of a printing device is determined. Environmental conditions in which the printing device operated when printing a print job are determined based on the determined location. An environmental adjustment factor for the printing device is determined based on the determined environmental conditions. A predicted print material usage of the printing device in printing the print job is adjusted based on the determined environmental adjustment factor.
Type:
Grant
Filed:
May 26, 2020
Date of Patent:
April 9, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Jeffrey H. Luke, Gabriel S. McDaniel, Scott K. Hymas
Abstract: An example image forming apparatus includes a main body, a driving motor, a developing cartridge, and a clutch. The developing cartridge includes a toner container, a mounting portion to receive a toner refill cartridge, a toner inlet portion to connect the mounting portion to the toner container, and a toner inlet shutter to be switched between a blocking location for blocking the toner inlet portion and an inlet location for opening the toner inlet portion. The clutch is to selectively transmit a driving force of the driving motor to the toner inlet shutter.
Type:
Grant
Filed:
December 14, 2020
Date of Patent:
April 9, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Shin-Hyup Kang, Jiwon Moon, Jinhwa Hong, Minchul Lee, Suseong Lee, JungMin Yang, Kok Weng Chan, Lian Chye Simon Tan
Abstract: The disclosure provides a method for verifying authenticity of a component in a product. The method may comprise collecting data relating to a characteristic of the component. The method may further comprise comparing the data to a profile for the component. The profile may comprise an expected characteristic for the component. The method may further comprise determining whether the collected data matches the expected characteristic. The disclosure further provides an apparatus and program.
Type:
Grant
Filed:
August 20, 2019
Date of Patent:
April 9, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Joshua Serratelli Schiffman, Carey Huscroft, Pierre Belgarric
Abstract: According to an example, a device comprises a sidewall and a base movable relative to the sidewall. The sidewall and base define an internal volume for receipt of build material in an additive manufacturing process. The example device further comprises a membrane. A first end of the membrane is attached to the base such that the membrane is movable with the base. The membrane at least partially extends along the sidewall to form a flexible barrier between the internal volume and the sidewall.
Type:
Application
Filed:
February 24, 2020
Publication date:
April 4, 2024
Applicant:
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventors:
Alejandro Rodriguez Romero, Gabriel De La Cal Mendoza, Albert Rodriguez Fernandez, Francesc Melia Sune
Abstract: A method for controlling a printer includes receiving a set of first variables for the printer, determining, using a machine-learning program, one or more second variables based on the set of first variables, and controlling a printer to perform a print job based on the set of first variables and the one or more second variables. The first and second variables may correspond to different types of printer settings. The machine-learning program may determine the second variables using a classifier model that may prevent partial curing or drying, print media deformation and/or other defects.
Type:
Application
Filed:
September 22, 2022
Publication date:
April 4, 2024
Applicant:
Hewlett-Packard Development Company, L.P.
Inventors:
Cara Ellen BIRSCHBACH, Volker SEIDEL, Albert FRANCO MORERA
Abstract: An example apparatus is described for concurrent execution and copy of updated basic input/output system (“BIOS”) instructions. The apparatus may comprise a private serial peripheral interface and a processor to execute updated BIOS instructions. The apparatus may also comprise a controller to copy the updated BIOS instructions to the private serial peripheral interface. In various examples, execution and copy of the updated BIOS instructions may be performed concurrently.
Type:
Application
Filed:
April 28, 2021
Publication date:
April 4, 2024
Applicant:
Hewlett-Packard Development Company, L.P.
Inventors:
Rosilet Retnamoni Braduke, Mason Gunyuzlu, Wei Ze Liu
Abstract: In an example of the disclosure, first and second print jobs are received at a printer. The first and second print jobs each include production frames. The first and second print jobs are printed with a media roll change occurring during printing. A first finishing device information nonproduction (“FDIN”) frame and a second FDIN frame are printed. The first and second FDIN frames include coded information regarding the first print job and the second print job, respectively. The coded information is for reading by a scanner at a finishing device. A press calibration nonproduction (“PCN”) frame that includes a printer calibration diagnostic is printed. A scanner at the printer is caused to capture the printer calibration diagnostic. A calibration operation is performed at the printer utilizing data or attributes captured from the printer calibration diagnostic.
Type:
Grant
Filed:
December 20, 2019
Date of Patent:
April 2, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Thomas J Peck, Shane Shivji, Claire O'Cull
Abstract: A method is disclosed. The method comprises receiving a matrix representation of a source image to be printed, the matrix representation defining a colorant value for each of a plurality of print addressable locations, wherein the colorant values are representative of amounts of print colorant to be delivered to the print addressable locations during a printing operation. The method may comprise identifying, by processing circuitry, a region in the matrix representation having a first print addressable location and an adjacent second print addressable location, wherein a difference between colorant values of the first print addressable location and the second print addressable location meets or exceeds a defined colorant value threshold.
Type:
Grant
Filed:
November 22, 2019
Date of Patent:
April 2, 2024
Assignee:
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventors:
Sara Echevarria Benito, Ruben Recasens Oros, Alexandre Rodriguez Llofriu
Abstract: Examples herein relate to wireless polling frequency alteration. For instance, in some examples a wireless power transmitter circuit can emit wireless signals to detect a presence of a wireless power receiver circuit included in a mobile device and a controller can alter a wireless polling frequency at which the wireless power transmitter circuit emits the wireless signals to a respective wireless polling frequency of a plurality of wireless polling frequencies.
Type:
Grant
Filed:
October 18, 2022
Date of Patent:
April 2, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Kuo-Hsien Liu, Jerome Bove, Isaac Lagnado
Abstract: An example image forming apparatus includes a main body, a printing engine to be disposed in the main body to form an image on a printing medium, a fixing apparatus including a fixing roller and a fixing belt disposed to face the fixing roller, and a jam prevention apparatus including a fixed frame disposed adjacent to the fixing apparatus, and a movable apparatus to be detachably fastened to the fixed frame through a plurality of adjusting screws, to adjust a gap with the fixing belt according to a fastening direction of the plurality of adjusting screws.
Type:
Grant
Filed:
December 30, 2020
Date of Patent:
April 2, 2024
Assignee:
Hewlett-Packard Development Company, L.P.
Inventors:
Jin Seok Lee, Bong Hee Lee, Jin Yoon Kim