Patents Assigned to Hewlett-Packard Development Company, L.P.
  • Synchronization of a gyroscope in a virtual-reality environment
    Patent number: 11946744
    Abstract: Examples of synchronization of a gyroscope in a virtual-reality (VR) environment are described. In some examples, gyroscopic feedback for VR application content may be predicted. In some examples, a time shift corresponding to a physical system lag of a gyroscope may be added to synchronize the gyroscopic feedback with the VR application content. In some examples, the gyroscopic feedback may be applied based on the time shift.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: April 2, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kevin David Kowalski, Jonathan Michael Anderson, Matthew James Flach
  • Wireless polling frequency alteration
    Patent number: 11949256
    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
  • Skew detection
    Patent number: 11947302
    Abstract: According to some examples, a skew detection device comprises a first roller rotatable around a first axis, a second roller rotatable around a second axis, a first sensor, and a second sensor. The first sensor measures a first rotation parameter from the first roller and the second sensor measures a second rotation parameter from the second roller. A movement of a print media over the device rotates the first contact roller and the second roller, and a controller determines a skew of the print media based on the first and second rotation parameters captured by the first sensor and the second sensor.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: April 2, 2024
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Martin Urrutia Nebreda, Marti Rius Rossell
  • Printing with media roll changes and nonproduction frames
    Patent number: 11945211
    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
  • Dielectrophoresis separator cross-over frequency measurement systems
    Patent number: 11946902
    Abstract: In example implementations, an apparatus is provided. The apparatus includes a dielectrophoresis (DEP) separator, an electrical field generator, a tracking system, and a controller. The DEP separator is to separate a plurality of different particles. The electrical field generator is coupled to the DEP separator to apply a frequency to the DEP separator. The tracking system is to track a movement of a type of particles in the DEP separator. The controller is in communication with the electrical field generator to control the frequency and the tracking system to track the separation. The controller is to calculate a cross-over frequency from a cross-over frequency distribution for the type of particles based on a frequency sweep performed on the type of particles and the movement of the type of particles that is tracked.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: April 2, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Viktor Shkolnikov, Yang Lei, Daixi Xin
  • Determining printing fluid amounts
    Patent number: 11945225
    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
  • Cooling structure for regulation blade of developing device
    Patent number: 11947312
    Abstract: An example developing device includes a developing roller, a regulation blade to regulate a thickness of a toner layer attached to an outer circumference of the developing roller, a blade bracket for supporting the regulation blade, and an inner duct including an air supply port and extending in a longitudinal direction of the developing roller to form a flow path of air to cool the blade bracket.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: April 2, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Minguk Go, Horyul Lee, Yoshihiko Ichikawa, Yunkyu Shim
  • Jam prevention of printing media using gap adjusting
    Patent number: 11947289
    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
  • FLUID-EJECTION DIE WITH STAMPED NANOCERAMIC LAYER
    Publication number: 20240100849
    Abstract: A fluid-ejection die cartridge includes a cartridge body. The fluid-ejection die cartridge includes a fluid-ejection die fluidically attached to the cartridge body. The fluid-ejection die is to eject fluid. The fluid-ejection die cartridge includes a stamped nanoceramic layer on an exposed fluid-ejection nozzle plate of the fluid-ejection die attached to the cartridge body.
    Type: Application
    Filed: April 14, 2020
    Publication date: March 28, 2024
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Chien-Hua Chen, Michael G Groh, Bo Song
  • BREAKAWAY MECHANISMS FOR CABLES
    Publication number: 20240105359
    Abstract: In one example in accordance with the present disclosure, a device is described, which includes a first retainer to connect to a first section of a cable and a second retainer to connect to a second section of the cable. The first retainer and second retainer are connected together with a breakaway mechanism. The breakaway mechanism separates when tension is applied between the first section of the cable and the second section of the cable.
    Type: Application
    Filed: November 12, 2019
    Publication date: March 28, 2024
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Owen Richard, Jon Anderson
  • BACK COVER COUPLING FOR ELECTRONIC DEVICES
    Publication number: 20240103577
    Abstract: In one example, an electronic device may include a main body, and a back cover having an opening. The back cover may include an inner surface, and a hook protruding from the inner surface. The hook may be engageable with a receiving portion of the main body to slidably couple the back cover to the main body. Further, electronic device may include a component housing connected to the main body through the opening in the back cover to fixedly couple the back cover to the main body.
    Type: Application
    Filed: November 5, 2019
    Publication date: March 28, 2024
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Cheng-Yi Yang, Szu Tao Tong, Hai-Lung Hung
  • HEATING PRINT AGENT ON PRINT MEDIA
    Publication number: 20240100863
    Abstract: Examples relate to methods to heat a print agent deposited on a print agent, print an image on a print media and heating systems for a heating a print agent deposited on a print media. A heating system comprises a radiation emitter to irradiate a print agent deposited on a print media, a reflector to reflect a radiation emitted by the radiation emitter back to the radiation emitter, and a displacing member to shift the heating system between a pre-heating position wherein the radiation reflected back to the radiation emitter has a higher magnitude and a heating position wherein the radiation reflected back to the radiation emitter has a lower magnitude.
    Type: Application
    Filed: November 5, 2019
    Publication date: March 28, 2024
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: RAIMON CASTELLS DE MONET, JOSEP TARRADAS I JUAN, MARCO IGNAZIO BARBETTA
  • KEYBOARD HOUSINGS WITH FLEXIBLE TOUCH SENSING COMPONENTS
    Publication number: 20240103641
    Abstract: In one example, a keyboard housing may include a chassis, a plurality of keys exposed through a top surface of the chassis, and an input device assembly connected to the chassis. The input device assembly may include a flexible touch sensing component to receive a touch input and a support structure. The support structure may include a first portion and a second portion foldable onto the first portion. The first portion and the second portion may support the flexible touch sensing component.
    Type: Application
    Filed: November 6, 2019
    Publication date: March 28, 2024
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Cheng-Han Tsai, Midas Wu, Wen-Hung Wang
  • DEVICE LOGIN AUTHENTICATIONS
    Publication number: 20240104174
    Abstract: Examples include a CPU coupled to a controller, the CPU to receive a user credential usable by the login executable code to perform device login authentication, determine a first hash value based on the login executable code, determine a second hash value based on the user credential, obtain a third hash value and a fourth hash value from the controller, wherein the third hash value is a reference hash value for the login executable code, and wherein the fourth hash value is a reference hash value for the user credential, compare the first hash value to the third hash value, compare the second hash value to the fourth hash value, execute an OS login service using the login executable code responsive to the first hash value matching the third hash value and the second hash value matching the fourth hash value.
    Type: Application
    Filed: March 10, 2021
    Publication date: March 28, 2024
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Rosilet Retnamoni Braduke, Wei Ze Liu, Rajesh A. Shah
  • FACTORY CALIBRATION MEASUREMENT DATA
    Publication number: 20240105088
    Abstract: An example display system includes a load engine and a calibration engine. The load engine causes an inquiry for current calibration measurement data and retrieves factory calibration measurement data when the current calibration measurement data is unavailable. The calibration engine receives a target set of display characteristics, generates a color profile from a native panel performance representation to operate a display according to the target set of display characteristics, and causes adjustment of a display according to a difference between the target set of display characteristics and the native panel performance representation using the generated color profile.
    Type: Application
    Filed: December 5, 2023
    Publication date: March 28, 2024
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Gregory G. Staten, Jennifer L. Cook, Syed S. Azam
  • Media height non-uniformity detection
    Patent number: 11938718
    Abstract: In an example of the disclosure, power of a first light beam emitted across a web media along a length of the roller is measured utilizing a first optical transmitter and first optical receiver pair situated adjacent to a roller. Power of a second light beam emitted across a length of the roller is measured utilizing a second optical transmitter and second optical receiver pair situated adjacent to the roller. A media height non-uniformity is identified based upon of the measurement of the power of the first light beam and the measurement of the power of the second light beam.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: March 26, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Matthew James West
  • Syringe bodies
    Patent number: 11938738
    Abstract: In some examples, an apparatus can include a syringe body including an electrical interface at a side surface of the syringe body, an interface at an end of the syringe body including an output at a distal surface of the syringe body, a print material particles reservoir located in the syringe body, and a structure to adapt a volume of the print material particles reservoir to move print material particles out of the print material particles reservoir through the output, where in response to the volume adapting structure moving from a first position to a second position, a signal is transmitted by the electrical interface.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: March 26, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Andrew P. Chick, Kenneth K. Smith, Jiwon Moon, Minul Lee, Matthew James Storey, An Tran, Bennett Alexander Nadeau, Zackary Thomas Hickman
  • Repurposing a document
    Patent number: 11943415
    Abstract: When repurposing a document, a processor reads a document having multiple pages and extracts three samples of the multiple pages of the document. For each of the three samples, the processor compares sequential pages within a respective sample to identify a pattern of markers, such as page numbers. A marker is found by splitting a page into smaller regions and wherein each smaller region is searched for the marker and if the marker is not found continuing to split a smaller region into further smaller regions. The processor removes the markers based on identified patterns for each respective sample of the document.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: March 26, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Diogo Raphael Cravo, Ricardo Beck
  • Training using rendered images
    Patent number: 11941499
    Abstract: Examples of methods for training using rendered images are described herein. In some examples, a method may include, for a set of iterations, randomly positioning a three-dimensional (3D) object model in a virtual space with random textures. In some examples, the method may include, for the set of iterations, rendering a two-dimensional (2D) image of the 3D object model in the virtual space and a corresponding annotation image. In some examples, the method may include training a machine learning model using the rendered 2D images and corresponding annotation images.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: March 26, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Qian Lin, Augusto Cavalcante Valente, Deangeli Gomes Neves, Guilherme Augusto Silva Megeto
  • Using pre-scan to improve scan speed by detecting a document loaded on the image reading apparatus
    Patent number: 11943407
    Abstract: An image reading apparatus includes an image sensor to read a document, a sensor to detect whether the document is loaded on the image reading apparatus, and a processor to, when the sensor detects the document is loaded on the image reading apparatus, and before a scan instruction is input to the image reading apparatus, control the image sensor to execute a pre-scan job with respect to the loaded document using a default set value.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: March 26, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Soo Young Kang, Junghoon Kim, Mi Jin Kang