Low heat transfer encapsulation for high sensitivity and low power environmental sensing applications

    公开(公告)号:US10436731B2

    公开(公告)日:2019-10-08

    申请号:US16048139

    申请日:2018-07-27

    Applicant: Apple Inc.

    Abstract: A miniature gas sensing device includes a silicon-based substrate including an opening. A first membrane is formed over the silicon-based substrate and a first portion of the first membrane covers the opening. A gas sensing layer is formed over a number of electrodes disposed over a first surface of the first portion of the first membrane and one or more heating elements. A permeable enclosure encapsulating the gas sensing layer can maintain thermal energy density over the gas sensing layer at a level sufficient to destroy a target gas to allow measuring a zero baseline.

    Electronic device with sensor ports having enhanced airflow

    公开(公告)号:US10156553B2

    公开(公告)日:2018-12-18

    申请号:US15085862

    申请日:2016-03-30

    Applicant: Apple Inc.

    Abstract: An electronic device may have input-output devices such as sensors. The sensors may include environmental sensors that make measurements on the environment surrounding the electronic device. The environmental sensors may make measurements such as temperature measurements, humidity measurements, gas composition measurements, and particulate level measurements. A sensor may communicate with external air through a sensor port in an electronic device housing. An electronic device may have a movable member. The movable member may be moved in response to motion of the electronic device when handled by user or motion of a button or other movable member that is actuated by the user. As the movable member moves, the movable member may create enhanced airflow through the sensor port. This may refresh the air adjacent to an environmental sensor and enhance sensor response time.

    In-sensor span calibration for MEMS ozone sensor

    公开(公告)号:US10928345B2

    公开(公告)日:2021-02-23

    申请号:US16276460

    申请日:2019-02-14

    Applicant: Apple Inc.

    Abstract: A portable communication device may include a gas sensor enclosed in an enclosure, a port to allow flow of air into and out of the enclosure, and a light source disposed on an internal surface of the enclosure. The light source is operable to facilitate generation of ozone gas within the enclosure. The enclosure may contain a heating element that allows baseline calibration of the gas sensor by thermally decomposing ozone gas molecules. The gas sensor includes a miniature gas sensor such as a metal-oxide (MOX) gas sensor.

    Pumping mechanism for gas sensors

    公开(公告)号:US11415491B2

    公开(公告)日:2022-08-16

    申请号:US16145054

    申请日:2018-09-27

    Applicant: Apple Inc.

    Abstract: A gas-sensing apparatus with gas convection capability includes a gas sensor mounted inside a container, a substrate forming a bottom plate of the container and an actuator. The gas sensor is mounted over a first surface of the substrate internal to the container. The actuator is coupled to a second surface of the substrate external to the container. The actuator can cause convection of a gas within the container by enabling movements of the substrate in response to an activation signal.

    Enhanced location detection using sensors integrated in electronic devices

    公开(公告)号:US11280774B2

    公开(公告)日:2022-03-22

    申请号:US16115478

    申请日:2018-08-28

    Applicant: Apple Inc.

    Abstract: A portable communication device includes one or more miniature sensors to sense one or more environmental gases. A processor is coupled to the miniature sensors and is configured to enhance location detection by determining a sensor signal transition. The sensor signal transition is caused by subsequent exposures of at least one of the miniature sensors to environmental gases of a first air composition and a second air composition. The first air composition and the second air composition are respectively associated with a first location and a second location.

    INTELLIGENT VENTS FOR ELECTRONIC DEVICES
    8.
    发明申请

    公开(公告)号:US20190086969A1

    公开(公告)日:2019-03-21

    申请号:US16130969

    申请日:2018-09-13

    Applicant: Apple Inc.

    Abstract: Aspects of the subject technology relate to electronic devices with intelligent barometric vents. An intelligent barometric vent may provide a moisture-resistant opening between an environment external to a housing of the device and an internal cavity within the housing. The moisture-resistant opening may include a moisture-resistant cover over the opening, the cover having a cover-integrated sensor to detect occlusions of the opening. The device may also include occlusion mitigation components within the housing that operate, responsive to a detected occlusion, to at least partially remove the occlusion.

    Electronic Device With Sensor Ports Having Enhanced Airflow

    公开(公告)号:US20170284987A1

    公开(公告)日:2017-10-05

    申请号:US15085862

    申请日:2016-03-30

    Applicant: Apple Inc.

    CPC classification number: G01N33/0009

    Abstract: An electronic device may have input-output devices such as sensors. The sensors may include environmental sensors that make measurements on the environment surrounding the electronic device. The environmental sensors may make measurements such as temperature measurements, humidity measurements, gas composition measurements, and particulate level measurements. A sensor may communicate with external air through a sensor port in an electronic device housing. An electronic device may have a movable member. The movable member may be moved in response to motion of the electronic device when handled by user or motion of a button or other movable member that is actuated by the user. As the movable member moves, the movable member may create enhanced airflow through the sensor port. This may refresh the air adjacent to an environmental sensor and enhance sensor response time.

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