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    Connection and corrosion detection
    2.
    发明授权
    Connection and corrosion detection 有权

    公开(公告)号：US10184909B2

    公开(公告)日：2019-01-22

    申请号：US15275202

    申请日：2016-09-23

    Applicant: Apple Inc.

    Inventor： Vishal Gupta ,  Timothy M. Johnson ,  Nilay D. Jani ,  Yehonatan Perez

    IPC: G01R27/26 ,  G01N27/02 ,  G01R31/04 ,  H01R43/00

    Abstract: Methods, structures, and apparatus that are able to detect the presence of a connection to a device contact of an electronic device and are also able to detect the presence of contamination at the device contact. A host device includes a connection detection circuit and a contamination detection circuit connected to the device contact. The connection detection circuit includes a pull-up resistor that is pulled down by a pull-down resistor in an accessory device following a connection. The contamination detection circuit includes a current source to provide a current at the device contact and measurement circuitry to measure a resulting voltage.

    Prevention of Unexpected Shutdown
    3.
    发明申请
    Prevention of Unexpected Shutdown 有权

    公开(公告)号：US20250085765A1

    公开(公告)日：2025-03-13

    申请号：US18465785

    申请日：2023-09-12

    Applicant: Apple Inc.

    Inventor： Chee Lim Nge ,  Peter Hyungrok Sung ,  Douglas A. MacKay ,  Diwakar N. Tundlam ,  Jun Hou ,  Tu Le ,  Vishal Gupta ,  Ning Tian ,  Daniele Perretta ,  Bo Zhou ,  Michael Eng

    IPC: G06F1/3234 ,  G01R31/387 ,  G06F1/3218

    Abstract: Systems and methods are disclosed for allocating and distributing power management budgets for subsystems of a computer system. For each of a plurality of subsystems, a power management system may generate a long-term power budget and a closed-loop power budget, and then determine a final power budget to provide to the subsystem, e.g., by applying a min function, a weighted sum, or some other function to the long-term power budget and the closed-loop power budget. The closed-loop power budget is determined based on observations of power draw over a past period of time, and therefore cannot respond immediately to large changes in power. The long-term power budget is generated based on a prediction of battery capability over an upcoming window of time, and may therefore provide a power cap before the system is under duress.

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