Magnetic field sensor in a portable electronic device

    公开(公告)号:US10955494B2

    公开(公告)日:2021-03-23

    申请号:US16381940

    申请日:2019-04-11

    Applicant: Apple Inc.

    Abstract: A portable computing device that includes a base portion that carries an audio module and a display housing that carries a display is disclosed. The display housing is coupled with, and rotatable with respect to, the base portion. The display housing includes a magnet, and the base portion includes a magnetic field sensor that detects an external magnetic field of the magnet. The magnetic field sensor provides a signal that deactivates the display. In order to reduce layout changes in the portable computing device, the magnetic field sensor is positioned in an audio housing that carries the audio module. However, the magnetic field sensor is designed and oriented to detect the magnetic field from the magnet in the display housing and effectively ignore magnets associated with the audio module. In order to reduce the amount of electrical connections, the magnetic field sensor is electrically coupled to the audio module.

    Magnetic field sensor in a portable electronic device

    公开(公告)号:US11346902B2

    公开(公告)日:2022-05-31

    申请号:US17177481

    申请日:2021-02-17

    Applicant: Apple Inc.

    Abstract: A portable computing device that includes a base portion that carries an audio module and a display housing that carries a display is disclosed. The display housing is coupled with, and rotatable with respect to, the base portion. The display housing includes a magnet, and the base portion includes a magnetic field sensor that detects an external magnetic field of the magnet. The magnetic field sensor provides a signal that deactivates the display. In order to reduce layout changes in the portable computing device, the magnetic field sensor is positioned in an audio housing that carries the audio module. However, the magnetic field sensor is designed and oriented to detect the magnetic field from the magnet in the display housing and effectively ignore magnets associated with the audio module. In order to reduce the amount of electrical connections, the magnetic field sensor is electrically coupled to the audio module.

    Automated system for magnet quality measurements

    公开(公告)号:US10006974B2

    公开(公告)日:2018-06-26

    申请号:US15272352

    申请日:2016-09-21

    Applicant: Apple Inc.

    CPC classification number: G01R33/0385

    Abstract: An automated magnet quality measurement system includes a magnet measuring component and an automated magnet moving component. The magnet measuring component can be configured to measure EMF for a plurality of magnets. The automated magnet moving component can move each of the plurality of magnets into and out of the magnet measuring component without requiring any manual intervention, with only one of the plurality of magnets being within the magnet measuring component at a given time. The magnet measuring component can be a Helmholtz coil and the automated magnet moving component can be a rotating disk. The overall system can also include a loading system configured to load each of the magnets onto the automated magnet moving component on an individual and sequential basis, and a sorting system configured to sort the magnets based upon their EMF measurements.

    Integrated sensor in clutch assembly for determining angle of display

    公开(公告)号:US11853129B1

    公开(公告)日:2023-12-26

    申请号:US16252193

    申请日:2019-01-18

    Applicant: Apple Inc.

    CPC classification number: G06F1/1681 G06F1/1637 H05K5/0017

    Abstract: This application relates to a portable electronic device. The portable electronic device includes a housing including (i) a lower case, and (ii) an upper case pivotally coupled to the lower case with a hinge assembly. The housing includes a processor capable of providing instructions, an operational component in communication with the processor, where the processor is capable of executing a function, and a magnetic detection system included within the hinge assembly. The magnetic detection system includes a magnetic element capable of generating a magnetic field, and a magnetic sensor capable of determining an angle between the lower case and the upper case based on the magnetic field, where when the processor determines that the angle between the lower case and the upper case satisfies a predetermined threshold angle, the processor provides the instructions to the operational component to execute the function.

    Magnetic field sensor in a portable electronic device

    公开(公告)号:US11726151B2

    公开(公告)日:2023-08-15

    申请号:US17660949

    申请日:2022-04-27

    Applicant: Apple Inc.

    CPC classification number: G01R33/096 G01R33/091 G06F1/1677

    Abstract: A portable computing device that includes a base portion that carries an audio module and a display housing that carries a display is disclosed. The display housing is coupled with, and rotatable with respect to, the base portion. The display housing includes a magnet, and the base portion includes a magnetic field sensor that detects an external magnetic field of the magnet. The magnetic field sensor provides a signal that deactivates the display. In order to reduce layout changes in the portable computing device, the magnetic field sensor is positioned in an audio housing that carries the audio module. However, the magnetic field sensor is designed and oriented to detect the magnetic field from the magnet in the display housing and effectively ignore magnets associated with the audio module. In order to reduce the amount of electrical connections, the magnetic field sensor is electrically coupled to the audio module.

    Switchable magnetic array
    8.
    发明授权

    公开(公告)号:US10031559B1

    公开(公告)日:2018-07-24

    申请号:US15269875

    申请日:2016-09-19

    Applicant: Apple Inc.

    Abstract: An electronic device (such as a laptop) may selectively latch a base to a lid using a switchable magnet array. In particular, a drive circuit in the electronic device may apply at least a current pulse to a conductor that generates a magnetic field to reverse a direction of a remnant magnetization in the switchable magnet array. By reversing the direction of the remnant magnetization, the electronic device may selectively increase or decrease a magnetic field generated by the switchable magnet array at an attraction plate in the electronic device. This magnetic field may, in turn, result in an attractive force between the switchable magnet array and the attraction plate, thereby selectively latching the base and the lid when the base and the lid are proximate to each other.

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