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    Temperature gradient sensing in portable electronic devices
    1.
    发明授权
    Temperature gradient sensing in portable electronic devices 有权

    公开(公告)号：US11408778B2

    公开(公告)日：2022-08-09

    申请号：US16935046

    申请日：2020-07-21

    Applicant: Apple Inc.

    Inventor： James C. Clements ,  Chad A. Bossetti ,  Habib S. Karaki ,  Paul Mansky

    IPC: G01K1/00 ,  G01K7/00 ,  G01K7/02 ,  G01K7/22

    Abstract: An electronic device housing encloses a temperature sensing system including a temperature sensor and a differential temperature probe. The differential temperature probe includes a flexible substrate defining two ends. A first end is thermally coupled to the temperature sensor and a second end is thermally coupled to a surface, volume, or component of the electronic device. The temperature probe is an in-plane thermopile including a series-coupled set of thermocouples extending from the first end to the second end. A temperature measured at the temperature sensor can be a first measured temperature and a voltage difference across leads of the differential temperature probe can be correlated to a differential temperature relative to the first measured temperature. A sum of the differential temperature and the first measured temperature is a second measured temperature, quantifying a temperature of the second end of the differential temperature probe.

    Methods for Detecting Mated Coils
    4.
    发明申请
    Methods for Detecting Mated Coils 审中-公开

    公开(公告)号：US20170110911A1

    公开(公告)日：2017-04-20

    申请号：US15393435

    申请日：2016-12-29

    Applicant: Apple Inc.

    Inventor： Chad A. Bossetti ,  Jeffrey M. Alves ,  Albert J. Golko ,  Jeffrey Terlizzi ,  Christopher S. Graham ,  Steven G. Herbst

    IPC: H02J50/10 ,  H02J50/80 ,  H02J7/02 ,  H02J50/90

    Abstract: Methods and systems for improved efficiency when an inductive power transmitter associated with an inductive power transfer system experiences a low-load or no-load condition. More particularly, methods and systems for detecting when an inductive power receiver is absent or poorly connected to an inductive power transmitter. The inductive power transmitter includes, in one example, a current peak monitor coupled to an inductive power transmit coil. The current peak monitor waits for a current peak resulting from spatial displacement of a magnetic field source within the inductive power receiver, indicating to the inductive power transmitter that the inductive power receiver is moving, or has moved, toward the inductive power transmitter. Other examples include one or more Hall effect sensors within the inductive power transmitter to monitor for the magnetic field source of the inductive power receiver.

    Contact detection for physiological sensor
    6.
    发明授权
    Contact detection for physiological sensor 有权

    公开(公告)号：US11980480B2

    公开(公告)日：2024-05-14

    申请号：US17821433

    申请日：2022-08-22

    Applicant: Apple Inc.

    Inventor： Chad A. Bossetti ,  Thomas J. Sullivan ,  Xiaoyu Guo ,  Paras Samsukha ,  Anirban Chatterjee

    IPC: A61B5/00 ,  A61B5/24 ,  A61B5/30 ,  A61B5/304

    CPC classification number: A61B5/6844 ,  A61B5/24 ,  A61B5/681 ,  A61B5/7203 ,  A61B5/7228 ,  A61B5/7475 ,  A61B5/30 ,  A61B5/304

    Abstract: Detecting user contact with one or more electrodes of a physiological signal sensor can be used to ensure physiological signals measured by the physiological signal sensor meet waveform characteristics (e.g., of a clinically accurate physiological signal). In some examples, a mobile and/or wearable device can comprise sensing circuitry, stimulation circuitry, and processing circuitry. The stimulation circuit can drive one or more stimulation signals on one or more electrodes, the resulting signal(s) can be measured (e.g., by the sensing circuitry), and the processing circuitry can determine whether a user is in contact with the electrode(s). Additionally or alternatively, in some examples, mobile and/or wearable device can comprise saturation detection circuitry, and the processing circuitry can determine whether the sensing circuitry is saturated.

    Contact detection for physiological sensor
    7.
    发明授权
    Contact detection for physiological sensor 有权

    公开(公告)号：US11419550B2

    公开(公告)日：2022-08-23

    申请号：US16565090

    申请日：2019-09-09

    Applicant: Apple Inc.

    Inventor： Chad A. Bossetti ,  Thomas J. Sullivan ,  Xiaoyu Guo ,  Paras Samsukha ,  Anirban Chatterjee

    IPC: A61B5/00 ,  A61B5/30 ,  A61B5/304 ,  A61B5/24

    Abstract: Detecting user contact with one or more electrodes of a physiological signal sensor can be used to ensure physiological signals measured by the physiological signal sensor meet waveform characteristics (e.g., of a clinically accurate physiological signal). In some examples, a mobile and/or wearable device can comprise sensing circuitry, stimulation circuitry, and processing circuitry. The stimulation circuit can drive one or more stimulation signals on one or more electrodes, the resulting signal(s) can be measured (e.g., by the sensing circuitry), and the processing circuitry can determine whether a user is in contact with the electrode(s). Additionally or alternatively, in some examples, mobile and/or wearable device can comprise saturation detection circuitry, and the processing circuitry can determine whether the sensing circuitry is saturated.

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