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公开(公告)号：US10239750B2
公开(公告)日：2019-03-26
申请号：US15650812
申请日：2017-07-14
Applicant: InvenSense, Inc.
Inventor： William Kerry Keal
IPC: B81C1/00 , G01C19/5719 , G01P1/02 , G01P15/08 , G01P15/125 , G01P15/18 , H01H59/00 , H03H9/10 , G01K11/24
Abstract: In a method of inferring ambient atmospheric temperature, an acoustic signal is emitted from a speaker. A first sample of the acoustic signal is captured with a first microphone spaced a first distance from the speaker. A second sample of the acoustic signal is captured with a second microphone spaced a second distance from the speaker. The second distance is greater than the first distance, and a difference between the first distance and the second distance is a known third distance. A time delay in the acoustic signal is determined between the first sample and the second sample. An ambient temperature of the atmosphere through which the acoustic signal traveled is inferred based on a relationship between the time delay and temperature for the acoustic signal over the third distance.
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公开(公告)号：US10089987B2
公开(公告)日：2018-10-02
申请号：US15384297
申请日：2016-12-19
Applicant: InvenSense, Inc.
Inventor： William Kerry Keal , Ajay Kumar Dhanapalan , Sangnam Choi , Carlo Murgia , Eitan A. Medina , Taro Kimura
Abstract: A sensor processing unit comprises a microphone and a sensor processor. The sensor processor is coupled with the microphone. The sensor processor is configured to operate the microphone to capture an audio sample from an environment in which the microphone is disposed. The sensor processor is configured to perform music activity detection on the audio sample to detect for music within the audio sample. Responsive to detection of music within the audio sample, the sensor processor is configured to send a music detection signal to an external processor located external to the sensor processing unit, the music detection signal indicating that music has been detected in the environment.
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公开(公告)号：US20170234756A1
公开(公告)日：2017-08-17
申请号：US15418603
申请日：2017-01-27
Applicant: InvenSense, Inc.
Inventor： Joe Youssef , Hemabh Shekhar , Karthik Katingari , William Kerry Keal , Mubbasher Mukhtar
IPC: G01L27/00
CPC classification number: G01L27/005
Abstract: Systems and methods are disclosed for calibrating a pressure sensor associated with a mobile device. The reference pressure information may be obtained from an associated device and then be used to calibrate the pressure sensor.
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14.发明申请METHOD TO REDUCE DATA RATES AND POWER CONSUMPTION USING DEVICE BASED ATTITUDE QUATERNION GENERATION 有权使用基于设备的方法来降低数据速率和消耗功率的方法QUATERNION GENERATION公开(公告)号：US20140278217A1
公开(公告)日：2014-09-18
申请号：US14194799
申请日：2014-03-02
Applicant: Invensense, Inc.
Inventor： William Kerry Keal , James B. Lim , Sinan Karahan
IPC: G01P1/00
CPC classification number: G01P1/00 , G01C21/16 , G01C21/165
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.
Abstract translation: 一种方法包括通过从陀螺仪传感器接收陀螺仪数据来产生运动数据，使用陀螺仪数据执行积分并使用第一处理器生成集成陀螺仪数据。 该方法还包括从除陀螺仪传感器之外的一个或多个传感器接收数据，以及使用集成陀螺仪数据和数据使用第二处理器来生成运动数据来执行传感器融合。
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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
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.
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Patent Agency Ranking
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
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.
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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
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.
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公开(公告)号：US10514774B1
公开(公告)日：2019-12-24
申请号：US14709423
申请日：2015-05-11
Applicant: INVENSENSE, INC.
Inventor： William Kerry Keal
IPC: G06F3/0346 , G01C19/02 , G01P15/14 , G01D5/12 , G01R31/367
Abstract: A method and system to a system to determine orientation of a device is disclosed. At least one sensor is provided. A quaternion is generated based on a signal generated by the sensor. The quaternion is indicative of the orientation of the device with reference to a stationary frame. Elements of the quaternion are compared to at least one predefined threshold value. A second signal is generated if the comparison is within the predefined threshold value.
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公开(公告)号：US20190293499A1
公开(公告)日：2019-09-26
申请号：US16362727
申请日：2019-03-25
Applicant: InvenSense, Inc.
Inventor： William Kerry Keal
Abstract: In a method of inferring ambient atmospheric temperature, an acoustic signal is emitted from a speaker. A first sample of the acoustic signal is captured with a first microphone spaced a first distance from the speaker. A second sample of the acoustic signal is captured with a second microphone spaced a second distance from the speaker. The second distance is greater than the first distance, and a difference between the first distance and the second distance is a known third distance. A time delay in the acoustic signal is determined between the first sample and the second sample. An ambient temperature of the atmosphere through which the acoustic signal traveled is inferred based on a relationship between the time delay and temperature for the acoustic signal over the third distance.
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公开(公告)号：US20190196815A1
公开(公告)日：2019-06-27
申请号：US16258218
申请日：2019-01-25
Applicant: Invensense, Inc.
Inventor： Andy Milota , Mars (Kuang-Li) Lee , William Kerry Keal , James B. Lim
CPC classification number: G06F9/30003 , G06F9/3017 , G06F13/102 , G06F13/385
Abstract: Systems and methods are disclosed for abstracting a source of sensor data by translating data sink processor communications from a hardware-independent format to a hardware-dependent format and by translating data source portion communications from a hardware-dependent format to a hardware-independent format.
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