Electronic devices with low-noise pressure sensors

    公开(公告)号:US09671300B2

    公开(公告)日:2017-06-06

    申请号:US14659447

    申请日:2015-03-16

    Applicant: Apple Inc.

    CPC classification number: G01L9/0073 G01L9/0052 G01L9/0072 G01L27/002

    Abstract: An electronic device may include one or more low-noise pressure sensors for measuring air pressure. The electronic device may include wireless communications circuitry for communicating with external devices also having pressure sensors. Pressure data gathered by an external device may be used as reference pressure data for the electronic device. For example, if both devices are located in the same building, both pressure sensors will detect similar pressure fluctuations due to doors opening and closing and temperature-control systems turning on and off. By subtracting the reference pressure data from the pressure data gathered by the electronic device, calibrated pressure data may be obtained and may be used to reliably detect vertical displacement changes of the electronic device. In other scenarios, the pressure data may be compared with the reference pressure data to determine whether the two devices are in the same room.

    Electronic Devices With Anemometers
    2.
    发明公开

    公开(公告)号:US20240085449A1

    公开(公告)日:2024-03-14

    申请号:US18350590

    申请日:2023-07-11

    Applicant: Apple Inc.

    CPC classification number: G01P5/248 G01W1/02

    Abstract: An electronic device may include a housing and a display in the housing. The display may be used as an anemometer to measure the speed of ambient air in the device's environment. In particular, the display may be monitored by a temperature sensor until it reaches an equilibrium temperature, at which point it may be heated by increasing the brightness of the display or using a separate heater. After heating, a cooling response of the display may be measured, and the ambient air speed may be calculated based on the cooling response of the display. Instead of measuring the air speed using the display, other components, such as a pressure sensor, may be used to measure the air speed by heating the components and measuring a cooling response of the components. Multiple temperature sensors may be incorporated into the device to determine a wind direction in addition to air speed.

    HYDROPHOBIC-COATED TRANSDUCER PORT WITH REDUCED OCCLUSION IMPACT

    公开(公告)号:US20190058934A1

    公开(公告)日:2019-02-21

    申请号:US16053628

    申请日:2018-08-02

    Applicant: Apple Inc.

    Abstract: A portable communication device includes a transducer enclosed in an enclosure. An opening allows flow of air between the transducer enclosed in the enclosure and a surrounding environment. The enclosure protects the transducer from misreading due to occlusion of environmental aggressors on the transducer. The enclosure is configured to repel the environmental aggressors away from a surface of the transducer and to keep a portion of the opening unclogged to maintain an air flow to the transducer.

    Electronic Devices With Multi-Function Environmental Sensors

    公开(公告)号:US20240085223A1

    公开(公告)日:2024-03-14

    申请号:US18321456

    申请日:2023-05-22

    Applicant: Apple Inc.

    CPC classification number: G01D21/02 G01J1/44 G01K17/00 G01P5/12 G01J2001/4266

    Abstract: An electronic device may include an environmental sensor. In particular, the sensor may include a layer of metal and be operable as an anemometer, a thermometer, a bolometer, and/or a heat flux sensor. To operate as an anemometer or thermometer, circuitry may heat the layer of metal and calculate an air speed based on a decay of the metal temperature. To operate as a bolometer, a first portion of the metal may have a first optical absorption/insulation (e.g., be insulated), while a second portion may have a second optical absorption/insulation (e.g., be uncoated). Differences in heating/cooling of the first and second portions may be used to measure solar radiation. To operate as a heat flux sensor, different metals may be used, and Seebeck voltages between the different metals may be measured. The metal may be deposited on the housing or may be incorporated into a mesh on the device.

    Hydrophobic-coated transducer port with reduced occlusion impact

    公开(公告)号:US10462544B2

    公开(公告)日:2019-10-29

    申请号:US16053628

    申请日:2018-08-02

    Applicant: Apple Inc.

    Abstract: A portable communication device includes a transducer enclosed in an enclosure. An opening allows flow of air between the transducer enclosed in the enclosure and a surrounding environment. The enclosure protects the transducer from misreading due to occlusion of environmental aggressors on the transducer. The enclosure is configured to repel the environmental aggressors away from a surface of the transducer and to keep a portion of the opening unclogged to maintain an air flow to the transducer.

    Electronic Devices with Low-Noise Pressure Sensors
    10.
    发明申请
    Electronic Devices with Low-Noise Pressure Sensors 有权
    具有低噪声压力传感器的电子设备

    公开(公告)号:US20160273986A1

    公开(公告)日:2016-09-22

    申请号:US14659447

    申请日:2015-03-16

    Applicant: Apple Inc.

    CPC classification number: G01L9/0073 G01L9/0052 G01L9/0072 G01L27/002

    Abstract: An electronic device may include one or more low-noise pressure sensors for measuring air pressure. The electronic device may include wireless communications circuitry for communicating with external devices also having pressure sensors. Pressure data gathered by an external device may be used as reference pressure data for the electronic device. For example, if both devices are located in the same building, both pressure sensors will detect similar pressure fluctuations due to doors opening and closing and temperature-control systems turning on and off. By subtracting the reference pressure data from the pressure data gathered by the electronic device, calibrated pressure data may be obtained and may be used to reliably detect vertical displacement changes of the electronic device. In other scenarios, the pressure data may be compared with the reference pressure data to determine whether the two devices are in the same MOM.

    Abstract translation: 电子设备可以包括用于测量空气压力的一个或多个低噪声压力传感器。 电子设备可以包括用于与也具有压力传感器的外部设备通信的无线通信电路。 由外部设备收集的压力数据可以用作电子设备的参考压力数据。 例如,如果两个设备位于相同的建筑物中,则两个压力传感器将检测到门打开和关闭以及温度控制系统打开和关闭时出现的类似压力波动。 通过从由电子设备收集的压力数据中减去参考压力数据,可以获得校准的压力数据,并且可以用于可靠地检测电子设备的垂直位移变化。 在其他情况下,可以将压力数据与参考压力数据进行比较,以确定两个装置是否处于相同的MOM。

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