公开(公告)号：US10247748B2

公开(公告)日：2019-04-02

申请号：US13965131

申请日：2013-08-12

Applicant: Invensense, Inc.

Inventor： William Kerry Keal ,  James Lim ,  Sinan Karahan

IPC: G01P1/00 ,  G01C21/16

Abstract: A method includes generating motion data by receiving a gyroscope data from a gyroscope sensor, performing integration using the gyroscope data and generating an integrated gyroscope data using a first processor. The method further includes receiving a data from one or more sensors, other than the gyroscope sensor, and performing sensor fusion using the integrated gyroscope data and the data to generate motion data using a second processor.

公开(公告)号：US20210025914A1

公开(公告)日：2021-01-28

申请号：US17071782

申请日：2020-10-15

Applicant: INVENSENSE, INC.

Inventor： William Kerry Keal ,  James Lim ,  Sinan Karahan

IPC: G01P1/00 ,  G01C21/16

Abstract: A method includes generating motion data by receiving a gyroscope data from a gyroscope sensor, performing integration using the gyroscope data and generating an integrated gyroscope data using a first processor. The method further includes receiving a data from one or more sensors, other than the gyroscope sensor, and performing sensor fusion using the integrated gyroscope data and the data to generate motion data using a second processor.

公开(公告)号：US20190227093A1

公开(公告)日：2019-07-25

申请号：US16372238

申请日：2019-04-01

Applicant: INVENSENSE, INC.

Inventor： William Kerry Keal ,  James Lim ,  Sinan Karahan

IPC: G01P1/00 ,  G01C21/16

Abstract: A method includes generating motion data by receiving a gyroscope data from a gyroscope sensor, performing integration using the gyroscope data and generating an integrated gyroscope data using a first processor. The method further includes receiving a data from one or more sensors, other than the gyroscope sensor, and performing sensor fusion using the integrated gyroscope data and the data to generate motion data using a second processor.

公开(公告)号：US20190195668A1

公开(公告)日：2019-06-27

申请号：US16247543

申请日：2019-01-14

Applicant: INVENSENSE, INC.

Inventor： Andy Milota ,  James Lim ,  William Kerry Keal

IPC: G01D18/00 ,  H03L7/00 ,  H03L1/00 ,  B81B7/02

CPC classification number: G01D18/008 ,  B81B7/02 ,  B81B2201/0235 ,  B81B2201/0242 ,  B81B2201/0292 ,  B81B2207/09 ,  H03L1/00 ,  H03L7/00

Abstract: Various aspects of this disclosure comprise systems and methods for synchronizing sensor data acquisition and/or output. For example, various aspects of this disclosure provide for achieving a desired level of timing accuracy in a MEMS sensor system, even in an implementation in which timer drift is substantial.

公开(公告)号：US09683865B2

公开(公告)日：2017-06-20

申请号：US13650480

申请日：2012-10-12

Applicant: InvenSense, Inc.

Inventor： William Kerry Keal ,  Yuan Zheng ,  Anjia Gu ,  James Lim ,  Shang-Hung Lin

IPC: G01P21/00 ,  G01C25/00

CPC classification number: G01C25/005 ,  G01P21/00

Abstract: A method, system and computer readable medium for calibrating an accelerometer in a portable device is disclosed. The method, system and computer readable medium comprises receiving data from the accelerometer, and providing accelerometer samples from the data based upon one or more selection rules that adaptively selects data that satisfy certain criteria. The method system and computer readable medium also includes fitting the accelerometer samples to a mathematical mode. The method system and computer readable medium further includes providing a bias of the accelerometer based upon a center of the mathematical model.

公开(公告)号：US10996086B2

公开(公告)日：2021-05-04

申请号：US16724815

申请日：2019-12-23

Applicant: INVENSENSE, INC.

Inventor： Andy Milota ,  James Lim ,  William Kerry Keal

IPC: G01D18/00 ,  H03L1/00 ,  H03L7/00 ,  B81B7/02

Abstract: Various aspects of this disclosure comprise systems and methods for synchronizing sensor data acquisition and/or output. For example, various aspects of this disclosure provide for achieving a desired level of timing accuracy in a MEMS sensor system, even in an implementation in which timer drift is substantial.

公开(公告)号：US20200240819A1

公开(公告)日：2020-07-30

申请号：US16724815

申请日：2019-12-23

Applicant: INVENSENSE, INC.

Inventor： Andy Milota ,  James Lim ,  William Kerry Keal

IPC: G01D18/00 ,  B81B7/02 ,  H03L1/00 ,  H03L7/00

Abstract: Various aspects of this disclosure comprise systems and methods for synchronizing sensor data acquisition and/or output. For example, various aspects of this disclosure provide for achieving a desired level of timing accuracy in a MEMS sensor system, even in an implementation in which timer drift is substantial.

公开(公告)号：US10534014B2

公开(公告)日：2020-01-14

申请号：US14464817

申请日：2014-08-21

Applicant: InvenSense, Inc.

Inventor： William Kerry Keal ,  James Lim

IPC: G01P15/18 ,  G01C19/5776 ,  G01P15/16 ,  A61B5/11 ,  G01C25/00 ,  A61B5/00

Abstract: A system and method for reliably detecting when a device has been dropped. In a non-limiting example, a drop detection system may be operable to perform one or more of: fall detection, end-of-fall detection, and/or detection of no motion after the fall. The drop detection system may, for example, analyze information from one or more MEMS sensors on-board the device to detect when the device has been dropped.

公开(公告)号：US10123112B2

公开(公告)日：2018-11-06

申请号：US14959478

申请日：2015-12-04

Applicant: INVENSENSE, INC.

Inventor： Carlo Murgia ,  James Lim ,  Fariborz Assaderaghi ,  Anthony Minervini

IPC: H04R3/00 ,  H04R1/04 ,  H04R19/00 ,  H04R19/04

Abstract: Systems and techniques for providing improved beam forming functionality and/or improve noise cancellation functionality in a microphone package are presented. In an implementation, a device includes a first microelectromechanical systems (MEMS) sensor, a second MEMS sensor, and a digital signal processor. The first MEMS sensor is contained in a first back cavity within the device. The second MEMS sensor is contained in a second back cavity within the device. The digital signal processor generates a cardioid microphone pattern based on data associated with the first MEMS sensor contained in the first back cavity and other data associated with the second MEMS sensor contained in the second back cavity, where the digital signal processor forms at least a portion of the first back cavity and the second back cavity.

公开(公告)号：US20170164107A1

公开(公告)日：2017-06-08

申请号：US14959478

申请日：2015-12-04

Applicant: INVENSENSE, INC.

Inventor： Carlo Murgia ,  James Lim ,  Fariborz Assaderaghi ,  Anthony Minervini

IPC: H04R3/00 ,  H04R31/00 ,  G10L21/0216

CPC classification number: H04R3/005 ,  H01L2224/48137 ,  H04R1/04 ,  H04R19/005 ,  H04R19/04 ,  H04R2201/003 ,  H04R2430/20

Abstract: Systems and techniques for providing improved beam forming functionality and/or improve noise cancellation functionality in a microphone package are presented. In an implementation, a device includes a first microelectromechanical systems (MEMS) sensor, a second MEMS sensor, and a digital signal processor. The first MEMS sensor is contained in a first back cavity within the device. The second MEMS sensor is contained in a second back cavity within the device. The digital signal processor generates a cardioid microphone pattern based on data associated with the first MEMS sensor contained in the first back cavity and other data associated with the second MEMS sensor contained in the second back cavity, where the digital signal processor forms at least a portion of the first back cavity and the second back cavity.