公开(公告)号：US20200183536A1

公开(公告)日：2020-06-11

申请号：US16791699

申请日：2020-02-14

Applicant: InvenSense, Inc.

Inventor： Eitan MEDINA ,  Behrooz ABDI ,  Sam MASSIH ,  Romain FAYOLLE ,  Hao-Yen TANG

IPC: G06F3/043 ,  G06K9/00 ,  G06F3/041 ,  G01L1/16

Abstract: In a method for determining force applied to an ultrasonic sensor, ultrasonic signals are emitted from an ultrasonic sensor. A plurality of reflected ultrasonic signals from a finger interacting with the ultrasonic sensor is captured. A first data based at least in part on a first reflected ultrasonic signal of the plurality of reflected ultrasonic signals is compared with a second data based at least in part on a second reflected ultrasonic signal of the plurality of reflected ultrasonic signals. A deformation of the finger during interaction with the ultrasonic sensor is determined based on differences between the first data based at least in part on the first reflected ultrasonic signal and the second data based at least in part on the second reflected ultrasonic signal. A force applied by the finger to the ultrasonic sensor is determined based at least in part on the deformation.

公开(公告)号：US20170255338A1

公开(公告)日：2017-09-07

申请号：US15449770

申请日：2017-03-03

Applicant: InvenSense, Inc.

Inventor： Eitan MEDINA ,  Behrooz ABDI ,  Sam MASSIH ,  Romain FAYOLLE ,  Hao-Yen TANG

IPC: G06F3/043 ,  G06F3/041

CPC classification number: G06F3/0436 ,  G01L1/16 ,  G06F3/0414 ,  G06F3/0416 ,  G06F3/043 ,  G06K9/0002 ,  G06K9/00214

Abstract: In a method for determining force applied to an ultrasonic sensor, ultrasonic signals are emitted from an ultrasonic sensor. A plurality of reflected ultrasonic signals from a finger interacting with the ultrasonic sensor is captured. A first data based at least in part on a first reflected ultrasonic signal of the plurality of reflected ultrasonic signals is compared with a second data based at least in part on a second reflected ultrasonic signal of the plurality of reflected ultrasonic signals. A deformation of the finger during interaction with the ultrasonic sensor is determined based on differences between the first data based at least in part on the first reflected ultrasonic signal and the second data based at least in part on the second reflected ultrasonic signal. A force applied by the finger to the ultrasonic sensor is determined based at least in part on the deformation.

公开(公告)号：US20210397290A1

公开(公告)日：2021-12-23

申请号：US17361162

申请日：2021-06-28

Applicant: InvenSense, Inc.

Inventor： Eitan MEDINA ,  Behrooz ABDI ,  Sam MASSIH ,  Romain FAYOLLE ,  Hao-Yen TANG

IPC: G06F3/041 ,  G01L1/16 ,  G06F3/043 ,  G06K9/00

Abstract: In a method for determining force applied to an ultrasonic sensor, ultrasonic signals are emitted from an ultrasonic sensor. A plurality of reflected ultrasonic signals from a finger interacting with the ultrasonic sensor is captured. A first data based at least in part on a first reflected ultrasonic signal of the plurality of reflected ultrasonic signals is compared with a second data based at least in part on a second reflected ultrasonic signal of the plurality of reflected ultrasonic signals. A deformation of the finger during interaction with the ultrasonic sensor is determined based on differences between the first data based at least in part on the first reflected ultrasonic signal and the second data based at least in part on the second reflected ultrasonic signal. A force applied by the finger to the ultrasonic sensor is determined based at least in part on the deformation.

公开(公告)号：US20190250771A1

公开(公告)日：2019-08-15

申请号：US16392161

申请日：2019-04-23

Applicant: InvenSense, Inc.

Inventor： Eitan MEDINA ,  Behrooz ABDI ,  Sam MASSIH ,  Romain FAYOLLE ,  Hao-Yen TANG

IPC: G06F3/043 ,  G06F3/041 ,  G01L1/16

CPC classification number: G06F3/0436 ,  G01L1/16 ,  G06F3/0414 ,  G06F3/0416 ,  G06F3/043 ,  G06K9/0002 ,  G06K9/00214

Abstract: In a method for determining force applied to an ultrasonic sensor, ultrasonic signals are emitted from an ultrasonic sensor. A plurality of reflected ultrasonic signals from a finger interacting with the ultrasonic sensor is captured. A first data based at least in part on a first reflected ultrasonic signal of the plurality of reflected ultrasonic signals is compared with a second data based at least in part on a second reflected ultrasonic signal of the plurality of reflected ultrasonic signals. A deformation of the finger during interaction with the ultrasonic sensor is determined based on differences between the first data based at least in part on the first reflected ultrasonic signal and the second data based at least in part on the second reflected ultrasonic signal. A force applied by the finger to the ultrasonic sensor is determined based at least in part on the deformation.