CALIBRATION METHOD AND CIRCUIT FOR PRESSURE SENSING DEVICE

    公开(公告)号:US20180259405A1

    公开(公告)日:2018-09-13

    申请号:US15730396

    申请日:2017-10-11

    Inventor: SUNG-HAN WU

    CPC classification number: G01L1/146 G01L9/0072 G01L25/006

    Abstract: The present disclosure illustrates a calibration method and circuit for a pressure sensing device. The calibration method, via at least one passive component (e.g., the default capacitor) installed in the pressure sensing device, obtains a calibration gain factor of at least one converter also installed in the pressure sensing device, and when the pressure sensing device is in a regular operating mode, the calibration gain factor can be used to calibrate the output of the converter, so that a sensing signal inputted into the pressure sensing device can be correctly converted to a relevant pressure value.

    Mobile Electronic Device with Squeeze Detection

    公开(公告)号:US20180164166A1

    公开(公告)日:2018-06-14

    申请号:US15879956

    申请日:2018-01-25

    Applicant: Apple Inc.

    Inventor: Romain A. Teil

    Abstract: A force sensing compliant enclosure for an electronic device may include at least one deformable housing wall. At least one strain concentration portion may be located on the deformable housing wall where strain caused by application of a force that deforms the deformable housing wall is greater than at other portions of the deformable housing wall. The strain concentrating portion may have a second thickness that is thinner than other portions of the deformable housing wall. One or more sensors may be positioned in the strain concentration portion and may sense strain caused by the application of the force that deforms the deformable housing wall.

    Pressure sensitive sensor and touch panel

    公开(公告)号:US09933877B2

    公开(公告)日:2018-04-03

    申请号:US15113947

    申请日:2015-02-16

    CPC classification number: G06F3/0414 G01L1/146 G06F3/044

    Abstract: Problem: To achieve a pressure sensitive sensor capable of suppressing a drop in the accuracy of detecting a pressing force even in cases where the ambient temperature changes.Resolution means: A pressure sensitive sensor (7) includes: an elastically deformable covering member (10A) covering a front surface side; a variable resistance electrode (42A), electrical resistance thereof changing in response to a change in posture; a pyroelectric material layer (50) disposed covering the variable resistance electrode (42A); and a pair of charge detection electrodes (51, 52) disposed on both sides of the pyroelectric material layer (50) in a layering direction (L).

    Force sensing compliant enclosure
    100.
    发明授权

    公开(公告)号:US09915572B2

    公开(公告)日:2018-03-13

    申请号:US15025276

    申请日:2013-09-29

    Applicant: Apple Inc.

    Inventor: Romain A. Teil

    Abstract: A force sensing compliant enclosure for an electronic device may include at least one deformable housing wall. At least one strain concentration portion may be located on the deformable housing wall where strain caused by application of a force that deforms the deformable housing wall is greater than at other portions of the deformable housing wall. The strain concentrating portion may have a second thickness that is thinner than other portions of the deformable housing wall. One or more sensors may be positioned in the strain concentration portion and may sense strain caused by the application of the force that deforms the deformable housing wall.

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