公开(公告)号：US20180284188A1

公开(公告)日：2018-10-04

申请号：US15471539

申请日：2017-03-28

Applicant: INVENSENSE, INC.

Inventor： Omid Oliaei ,  Adolfo Giambastiani

IPC: G01R31/3183 ,  G06F11/25

Abstract: A fault detection system on a circuit can detect a fault on the same circuit without using a duplicate circuit. A test signal can be generated based on an input signal, and the input signal and test signal can be sent through the circuit and the resulting signals can be compared to determine if any fault is present. In an embodiment, a function can be applied to bits of the input signal and bits of the test signal such that when the signals are compared after passing through the processing block that is to be tested, if the variation between the signals is above a predetermined amount, it can be determined that a fault has occurred. In other embodiments, a first function can be applied to the input signal, and a second function can be applied to the test signal, and the resulting outputs can be compared.

公开(公告)号：US20180031597A1

公开(公告)日：2018-02-01

申请号：US15224131

申请日：2016-07-29

Applicant: INVENSENSE, INC.

Inventor： Omid Oliaei ,  Mehran Ayat

IPC: G01P13/00 ,  G01P15/08 ,  G01C19/00 ,  B81B7/00

CPC classification number: G01P13/00 ,  B81B7/008 ,  B81B2201/0235 ,  B81B2201/0242 ,  B81B2207/012 ,  G01C19/00 ,  G01C19/5776 ,  G01P15/08 ,  H03G3/30 ,  H04R1/04 ,  H04R3/00

Abstract: Multi-path signal processing for microelectromechanical systems (MEMS) sensors is described. An exemplary MEMS sensor apparatus can comprise a single MEMS sensor element and an associated integrated circuit (IC) that facilitates generating multiple output signals having different output signal electrical characteristics required by a host system. Provided implementations can minimize cost and IC die area of associated MEMS sensor apparatuses and systems by employing one or more signal multiplexers (MUXs) on a single common signal path from the single MEMS sensor element. In addition, various methods of generating multiple output signals having different output signal electrical characteristics from a single MEMS sensor element are described.

公开(公告)号：US20160249132A1

公开(公告)日：2016-08-25

申请号：US14628806

申请日：2015-02-23

Applicant: INVENSENSE, INC.

Inventor： Omid Oliaei

IPC: H04R1/40 ,  H04R3/00 ,  H04R19/04 ,  H04R1/32 ,  H04R19/00

CPC classification number: H04R1/406 ,  G01S3/802 ,  G10L2021/02166 ,  H04R1/326 ,  H04R3/005 ,  H04R19/005 ,  H04R19/04 ,  H04R2201/40

Abstract: Sound source localization using sensor fusion is presented herein. A device can include a sensor component that is configured to receive, from microphone(s), acoustic information corresponding to a sound source, and receive, from a set of sensors, motion information corresponding to the device. Further, the device can include a sensor fusion component that is configured to determine, based on the acoustic information and the motion information, coordinate information representing a location of the device with respect to the sound source, and send the coordinate information directed to a computing device. In an example, the sensor fusion component can determine an orientation of the device based on the motion information, and determine the coordinate information based on the orientation. In another example, the sensor fusion component can determine an angle of arrival of an acoustic wave from the sound source, and determine the coordinate information based on the angle of arrival.

Abstract translation: 本文介绍使用传感器融合的声源定位。 设备可以包括传感器组件，其被配置为从麦克风接收对应于声源的声学信息，并且从一组传感器接收与该设备相对应的运动信息。 此外，该装置可以包括传感器融合组件，其被配置为基于声学信息和运动信息来确定表示设备相对于声源的位置的坐标信息，并且发送指向计算的坐标信息 设备。 在一个示例中，传感器融合部件可以基于运动信息确定设备的方位，并且基于取向来确定坐标信息。 在另一示例中，传感器融合部件可以确定来自声源的声波的到达角度，并且基于到达角度来确定坐标信息。

公开(公告)号：US20160241146A1

公开(公告)日：2016-08-18

申请号：US14624106

申请日：2015-02-17

Applicant: INVENSENSE, INC.

Inventor： Omid Oliaei

IPC: H02M3/158 ,  B81B7/00 ,  G01D11/00

CPC classification number: H02M3/158 ,  G01C19/56 ,  G01D11/00 ,  G01L9/00 ,  G01P15/08 ,  G01P2015/0865 ,  H02M3/07 ,  H02M2001/0025

Abstract: A microelectromechanical systems (MEMS) sensor with an integrated power management system that performs analog to digital conversion of weak signals is provided. The MEMs sensor can include a switching regulator that steps a supply voltage down to a voltage appropriate for an analog to digital converter (A/D converter). A timing circuit is provided to generate a clock frequency for the switching regulator and the A/D converter such that the clock frequencies are harmonically related. The frequency of the voltage ripples formed by the switching regulator will match the clock frequency provided to the switching regulator. When the sampling frequency of the A/D converter is harmonically related to the voltage ripple frequencies, the aliasing frequency will fall outside a range of frequencies associated with the analog signal.

Abstract translation: 提供了具有执行弱信号的模数转换的集成电源管理系统的微机电系统（MEMS）传感器。 MEMs传感器可以包括开关稳压器，其将电源电压降低到适合于模数转换器（A / D转换器）的电压。 提供定时电路以产生开关稳压器和A / D转换器的时钟频率，使得时钟频率与谐波相关。 由开关稳压器形成的电压纹波的频率将与提供给开关稳压器的时钟频率相匹配。 当A / D转换器的采样频率与电压纹波频率谐波相关时，混叠频率将落在与模拟信号相关的频率范围之外。