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    Position-based switch of display devices
    22.
    发明授权
    Position-based switch of display devices 有权

    公开(公告)号：US12216281B2

    公开(公告)日：2025-02-04

    申请号：US17973324

    申请日：2022-10-25

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

    Inventor： Chung-Chun Chen ,  Ming-Shien Tsai ,  Chih-Ming Huang

    IPC: G02B27/00 ,  G02B27/01 ,  G06T19/00

    Abstract: The present specification describes examples of position-based switching of display devices. An example augmented reality (AR) device includes an AR display device to render display data. The example AR device also includes a wireless communication device to transmit and receive wireless signals. The example AR device further includes a processor to: 1) determine a position of the AR device relative to a computing device based on wireless signals communicated with the computing device; and 2) switch an activity state of the AR display device based on the determined position of the AR device relative to the computing device.

    FUSING AGENT COMPOSITIONS
    25.
    发明申请
    FUSING AGENT COMPOSITIONS 有权

    公开(公告)号：US20250033275A1

    公开(公告)日：2025-01-30

    申请号：US18714996

    申请日：2021-12-03

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

    Inventor： Emre Hiro Discekici ,  Emily Levin ,  Jake H. Thomas

    IPC: B29C64/165 ,  B29C64/153 ,  B33Y10/00 ,  B33Y70/10

    Abstract: Examples of the present disclosure are directed toward fusing agent compositions. An example fusing agent composition includes a radiation absorber, a co-solvent mixture, and a balance of water. In various examples, the radiation absorber is present in an amount ranging from about 0.005 weight percent (wt %) to about 1.0 wt % of a total weight of the fusing agent composition, wherein the radiation absorber absorbs radiation at a wavelength range within the visible light spectrum.

    Developer roller
    26.
    发明授权
    Developer roller 有权

    公开(公告)号：US12204260B2

    公开(公告)日：2025-01-21

    申请号：US18249088

    申请日：2020-10-16

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

    Inventor： Jeffrey Zampell ,  Daniel C. Tanchangco ,  Jingzhi Lu

    IPC: G03G15/10 ,  G03G15/08 ,  G03G15/11

    Abstract: A developer roller having a first section that includes a first exterior surface, wherein the first exterior surface includes an electrically-conductive material; and a second section includes a second exterior surface, wherein the second exterior surface is non-electrically-conductive. The second section is axially aligned with the first section and provided at a first longitudinal end of the first section.

    Continuous sheet and cut sheet printing
    28.
    发明授权
    Continuous sheet and cut sheet printing 有权

    公开(公告)号：US12202253B2

    公开(公告)日：2025-01-21

    申请号：US18041100

    申请日：2020-08-10

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

    Inventor： Wenbing Li ,  Chee Loong Yap

    IPC: B41J11/04

    Abstract: Examples include an apparatus comprising a media path assembly for a printer. The assembly comprises a transmission module configured to be connected to a first motor of the printer and a first roller connected to the transmission module. The first roller is driven by the first motor through the transmission module when pulling a continuous sheet from a roll around a spindle of the printer in a forward direction towards a print zone of the printer. The transmission module is configured to be connected to a second roller of the printer, the second roller being driven by the first motor through the transmission module when pulling a cut sheet from a cut sheet tray of the printer in a forward direction towards the print zone.

    CONTROL OF FLUID EJECTION FROM A MICROFLUIDIC DEVICE
    30.
    发明申请
    CONTROL OF FLUID EJECTION FROM A MICROFLUIDIC DEVICE 有权

    公开(公告)号：US20250012703A1

    公开(公告)日：2025-01-09

    申请号：US18702172

    申请日：2021-10-29

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

    Inventor： Yang Lei ,  Joshua M. Yu ,  Timothy Merritt Holt ,  Angela Bakkom

    IPC: G01N15/1031 ,  G01N15/01 ,  G06V20/69

    Abstract: A non-limiting example method for control of fluid ejection from a microfluidic device includes firing a microfluidic ejector of a microfluidic device to expel a fluid from a channel of the microfluidic device. In response to detecting an instance of signal change from an impedance sensor disposed in the channel, the method includes controlling fluid ejection from the microfluidic ejector and capturing an image of the channel with an imaging apparatus. Using the captured image, a determination is made as to whether passage of a cell into the channel is associated with the instance of signal change from the impedance sensor. Based on the determination, the microfluidic ejector may fire to dispense the fluid from the channel into a reservoir.

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