公开(公告)号：US20190265017A1

公开(公告)日：2019-08-29

申请号：US16279588

申请日：2019-02-19

Applicant: Apple Inc.

Inventor： Jian GUO ,  John Greer ELIAS ,  Savas GIDER

IPC: G01B7/30 ,  G06F3/01

Abstract: Magnetic sensing technology can be used to detect changes, or disturbances (e.g., changes in magnetic field strength), in magnetic fields and can be used to measure the precise location/positioning of an electronic device in proximity to a magnetic source. In order to avoid interference by earth's static magnetic field, a modulated magnetic field can be used for magnetic based proximity sensing. Received modulated magnetic field signals can be demodulated to determine proximity of the sensor to the source of the modulated magnetic field. Devices such as gloves or devices with fingertip nodes based on receiving modulated magnetic fields can be used to detect user hand position.

公开(公告)号：US20230189654A1

公开(公告)日：2023-06-15

申请号：US18109180

申请日：2023-02-13

Applicant: Apple Inc.

Inventor： Majid KHAN ,  Roberto M. RIBEIRO ,  Savas GIDER

IPC: H10N30/88 ,  G01S3/781 ,  H10N30/00 ,  H10N30/20

CPC classification number: H10N30/88 ,  G01S3/781 ,  H10N30/1071 ,  H10N30/2047 ,  B81B2201/0264 ,  B81B2201/032

Abstract: Aspects of the subject disclosure include a pressure-sensing device consisting of a housing including a membrane and one or more piezoresistive elements disposed on the membrane to sense a displacement due to a deflection of the membrane. A first set of electrodes is disposed over the membrane, and a second set of electrodes is disposed on a permeable port of the device at a distance from the membrane. The first and second sets of electrodes form an electrostatic actuator to exert a repulsive force onto the membrane to reduce the deflection of the membrane.

公开(公告)号：US20220093842A1

公开(公告)日：2022-03-24

申请号：US17030275

申请日：2020-09-23

Applicant: Apple Inc.

Inventor： Majid KHAN ,  Roberto M. RIBEIRO ,  Savas GIDER

IPC: H01L41/053 ,  H01L41/08 ,  H01L41/09 ,  G01S3/781

Abstract: Aspects of the subject technology relate to an apparatus including a housing, one or more piezoresistive elements and a magnetic actuator. The housing includes a membrane, and the piezoresistive elements are disposed on the membrane to sense a displacement due to a deflection of the membrane. The magnetic actuator is disposed inside a cavity of the housing. The magnetic actuator exerts a repulsive force onto the membrane to reduce the deflection of the membrane.