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    Specialized Key Switches for Electronic Key Caps
    131.
    发明公开
    Specialized Key Switches for Electronic Key Caps 审中-公开

    公开(公告)号：US20240234045A1

    公开(公告)日：2024-07-11

    申请号：US18563826

    申请日：2021-05-28

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

    Inventor： Huaichung Hsu ,  Wei-min Liang

    IPC: H01H13/04 ,  H01H13/14

    CPC classification number: H01H13/04 ,  H01H13/14

    Abstract: This application is directed to system, devices, and methods of keyboard key switches that facilitate electrical connections to specialized keycaps. In some embodiments, a serial connection (e.g., USB or any serial protocol) can be created and maintained between a key switch of the inventive subject matter and a specialized keycap that couples with a top portion of the key switch's plunger. Key switches of the inventive subject matter incorporate spring probes to create electrical connections between a printed circuit board disposed below the key switches and the top portions of the key switches' plungers. Thus, different regions of a key switch's plunger can feature different conductive regions, which facilitates creating electrical connections between a PCB and a specialized keycap.

    OVERFILL-TOLERANT MICROFLUIDIC STRUCTURES
    133.
    发明公开
    OVERFILL-TOLERANT MICROFLUIDIC STRUCTURES 审中-公开

    公开(公告)号：US20240226878A1

    公开(公告)日：2024-07-11

    申请号：US18559496

    申请日：2021-05-07

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

    Inventor： Michael W. Cumbie ,  Viktor Shkolnikov ,  Brian J. Keefe

    IPC: B01L3/00 ,  B01L7/00

    CPC classification number: B01L3/502707 ,  B01L7/52 ,  B01L2200/0684 ,  B01L2300/048 ,  B01L2300/0838

    Abstract: An example overfill-tolerant microfluidic structure can include an inlet microfluidic channel. A sample chamber can be connected to the inlet microfluidic channel to receive liquid from the inlet microfluidic channel. A gas-permeable liquid barrier can be connected to the sample chamber and positioned to allow gas to flow out of the sample chamber. An overflow chamber can be connected to the inlet microfluidic channel. A capillary break can be positioned between the inlet microfluidic channel and the overflow chamber. The capillary break can include a narrowed opening with a smaller width than a width of the inlet microfluidic channel. In some examples, the gas-permeable liquid barrier can allow gas to flow out of the sample chamber at a pressure lower than the break pressure, and prevent liquid from flowing out of the sample chamber at the break pressure.

    Modular and tiled optical sensors
    134.
    发明授权
    Modular and tiled optical sensors 有权

    公开(公告)号：US12031915B2

    公开(公告)日：2024-07-09

    申请号：US17417533

    申请日：2019-04-30

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

    Inventor： Alexander Govyadinov ,  Brett E. Dahlgren ,  Brian John Keefe

    IPC: G01N21/64

    CPC classification number: G01N21/6486 ,  G01N21/6454 ,  G01N2021/6421

    Abstract: An example device includes an array of sensor modules. A sensor module includes a body to be positioned in alignment with a planar target, a light source coupled to the body to emit light to the planar target along a source optical path, and a plurality of light sensors coupled to the body. Each light sensor is to sense a different wavelength of light received from the planar target along a sensor optical path. The sensor optical path is different from the source optical path. The bodies of the array of sensor modules are arranged in a planar tiling pattern with respect to a longitudinal axis of the planar target.

    Anchoring Tracking Device Space to Hand Tracking Space
    135.
    发明公开
    Anchoring Tracking Device Space to Hand Tracking Space 审中-公开

    公开(公告)号：US20240220025A1

    公开(公告)日：2024-07-04

    申请号：US18557376

    申请日：2021-04-30

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

    Inventor： Joseph Nouri ,  Peter Christian Peterson ,  Mark Lessman

    IPC: G06F3/01

    CPC classification number: G06F3/017 ,  G06F3/011

    Abstract: A computing device receives a notification from a tracking device that the tracking device has entered a gripped state in which a user has securely gripped the tracking device with a hand of the user. The computing device responsively receives orientation data from the tracking device indicative of an orientation of the tracking device in a tracking device space. The computing device determines an orientation of the hand of the user in a hand tracking space from captured image data of the hand of the user and the tracking device. The computing device generates a transformation matrix to anchor the tracking device space to the hand tracking space. The tracking device resultantly enters an anchored state.

    Liquid carrier filtration
    139.
    发明授权
    Liquid carrier filtration 有权

    公开(公告)号：US12023611B2

    公开(公告)日：2024-07-02

    申请号：US17254898

    申请日：2018-11-29

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

    Inventor： Doron Schlumm ,  Igor Chertov ,  Sergei Trifonov

    IPC: B01D35/06 ,  G03G15/10

    CPC classification number: B01D35/06 ,  G03G15/104

    Abstract: An filtration apparatus is disclosed. The filtration apparatus is to remove non-liquid contaminant from liquid carrier. The filtration apparatus may include an electrode having a first surface, wherein the electrode is to generate an electric field towards liquid carrier containing non-liquid contaminant. The filtration apparatus may include a reservoir having a wall defined at least partially by the first surface, the reservoir to house a volume of liquid carrier. The filtration apparatus may include a plurality of plates, each plate having an accumulation surface, wherein a portion of each plate is within the reservoir, so as to be submerged in the volume of liquid carrier. An electric field formed between the first surface and the accumulation surface of each plate of the plurality of plates may act on the liquid carrier, to thereby cause non-liquid contaminant to adhere to an accumulation surface of a plate of the plurality of plates. A method and a print apparatus are also disclosed.

    WIRELESS CHARGING DEVICE DETECTION WITH PHOTOSENSORS
    140.
    发明公开
    WIRELESS CHARGING DEVICE DETECTION WITH PHOTOSENSORS 审中-公开

    公开(公告)号：US20240213819A1

    公开(公告)日：2024-06-27

    申请号：US18555684

    申请日：2021-04-19

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

    Inventor： Ken Ho ,  Chien-Hao Lu ,  Po Cheng Liao ,  Chia Ching Lu

    IPC: H02J50/90 ,  G01J1/16 ,  H02J50/10 ,  H02J50/80

    CPC classification number: H02J50/90 ,  G01J1/1626 ,  H02J50/10 ,  H02J50/80

    Abstract: An example device includes a wireless charging circuit to wirelessly charge a portable electronic device. The device further includes a first photosensor positioned within an effective charging range of the wireless charging circuit, the first photosensor to output a first signal, and a second photosensor positioned outside the effective charging range, the second photosensor to output a second signal. The device further includes a control circuit connected to the wireless charging circuit, the first photosensor, and the second photosensor. The control circuit detects the portable electronic device positioned within the effective charging range of the wireless charging circuit by detecting a difference between the first signal and the second signal. The control circuit turns on the wireless charging circuit in response to detecting the difference. The control circuit turns off the wireless charging circuit in response to detecting that the first signal matches the second signal.

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