Temperature gradient sensing in portable electronic devices

    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.

    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.

    DIRECT FORCE SENSING ON A THIN PLATE, FOR TRANSVERSE, UNEVEN PRESSURE FIELDS

    公开(公告)号:US20250123163A1

    公开(公告)日:2025-04-17

    申请号:US18913965

    申请日:2024-10-11

    Applicant: Apple Inc.

    Abstract: Dual loop strain gauge architectures (or other multiple loop strain gauge architectures) are used to sense an amount of force applied to an electronic device. The force may be applied by a transverse, uneven pressure field, such as a force that is applied by an amorphous object and/or a force that is applied non-uniformly, over a large area and/or to multiple points or areas. In some embodiments, a dual loop (or other multiple loop) strain gauge architecture is used to sense a pressure distribution on an electronic device. In some embodiments, a single loop strain gauge architecture is used to sense an amount of force applied to an electronic device.

    In-Bed Temperature Array for Menstrual Cycle Tracking

    公开(公告)号:US20230389899A1

    公开(公告)日:2023-12-07

    申请号:US18234804

    申请日:2023-08-16

    Applicant: Apple Inc.

    CPC classification number: A61B10/0012 A61B5/01 A61B5/6892 G01K7/16

    Abstract: Embodiments are directed to systems and techniques for tracking menstrual cycles, which can include receiving temperature measurements from an array of temperature sensors positioned on a bed. A use period for the array can be determined when temperature measurements from at least one temperature sensor of the one or more temperature sensors exceed a first temperature threshold. In some embodiments, for each use period in a set of two or more use periods, a temperature of the user using the set of temperatures from the respective use period can be determined. After determining the temperature of the user for each use period in the set of two or more use periods, at least one change in the temperature of the user between different use periods can be identified. An ovulation day of the user based on the at least one change in the temperature of the user can be estimated.

    Temperature gradient sensing in portable electronic devices

    公开(公告)号:US11781919B2

    公开(公告)日:2023-10-10

    申请号:US17882423

    申请日:2022-08-05

    Applicant: Apple Inc.

    CPC classification number: G01K7/02 G01K3/14 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.

    Temperature Gradient Sensing in Portable Electronic Devices

    公开(公告)号:US20220373404A1

    公开(公告)日:2022-11-24

    申请号:US17882423

    申请日:2022-08-05

    Applicant: Apple Inc.

    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.

    Temperature Gradient Sensing in Portable Electronic Devices

    公开(公告)号:US20220026284A1

    公开(公告)日:2022-01-27

    申请号:US16935046

    申请日:2020-07-21

    Applicant: Apple Inc

    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.

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