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公开(公告)号：US11092616B2
公开(公告)日：2021-08-17
申请号：US16182029
申请日：2018-11-06
Applicant: INVENSENSE, INC.
Inventor： Omid Oliaei , Peter George Hartwell
IPC: G01P15/125
Abstract: A microelectromechanical (MEMS) sensor has a capacitance that varies based on a sensed force. A charge signal representing that capacitance is provide at an input node of an amplifier of a sense circuit. The sense circuit includes a filter and analog-to-digital converter. Feedback from the filter and the analog-to-digital converter is also received at the input node of the amplifier. The sense circuit outputs a digital signal that is representative of the sensed force.
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公开(公告)号：US20190141457A1
公开(公告)日：2019-05-09
申请号：US16236224
申请日：2018-12-28
Applicant: INVENSENSE, INC.
Inventor： Omid Oliaei , Fariborz Assaderaghi
Abstract: Providing security features in an audio sensor is presented herein. A micro-electro-mechanical system (MEMS) microphone can include an acoustic membrane that converts an acoustic signal into an electrical signal; an electronic amplifier that increases an amplitude of the electrical signal to generate an amplified signal; and switch(es) configured to prevent propagation of a direct current (DC) voltage source to the MEMS microphone; prevent propagation of the DC voltage source to the electronic amplifier; prevent propagation of the electrical signal to the electronic amplifier; and/or prevent propagation of the amplified signal to an external device.
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公开(公告)号：US09924288B2
公开(公告)日：2018-03-20
申请号：US14527235
申请日：2014-10-29
Applicant: INVENSENSE, INC.
Inventor： Baris Cagdaser , Renata Melamud Berger , Omid Oliaei , Aleksey S. Khenkin
CPC classification number: H04R29/004 , H04R3/00 , H04R3/04 , H04R25/305 , H04R2201/003 , H04R2460/11 , H04R2499/11
Abstract: Systems and techniques for detecting blockage associated with a microelectromechanical systems (MEMS) microphone of a device are presented. The device includes a MEMS acoustic sensor and a processor. The MEMS acoustic sensor is contained in a cavity within the device. The processor is configured to detect a blockage condition associated with an opening of the cavity that contains the MEMS acoustic sensor.
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公开(公告)号：US09729963B2
公开(公告)日：2017-08-08
申请号：US14074587
申请日：2013-11-07
Applicant: InvenSense, Inc.
Inventor： Baris Cagdaser , Omid Oliaei , Behrad Aria
CPC classification number: H04R3/00 , H04R1/08 , H04R19/005 , H04R2201/003
Abstract: A programmable acoustic sensor is disclosed. The programmable acoustic sensor includes a MEMS transducer and a programmable circuitry coupled to the MEMS transducer. The programmable circuitry includes a power pin and a ground pin. The programmable acoustic sensor also includes a communication channel enabling data exchange between the programmable circuitry and a host system. One of the power pin and the ground pin can be utilized for data exchange.
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公开(公告)号：US09634567B2
公开(公告)日：2017-04-25
申请号：US14624106
申请日：2015-02-17
Applicant: INVENSENSE, INC.
Inventor： Omid Oliaei
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.
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Patent Agency Ranking
公开(公告)号：US20160269070A1
公开(公告)日：2016-09-15
申请号：US14644087
申请日：2015-03-10
Applicant: INVENSENSE, INC.
Inventor： Omid Oliaei
IPC: H04B1/40
CPC classification number: H04W72/04 , H04B1/0458 , H04B1/18 , H04B7/12
Abstract: Sensor fusion for antenna tuning for wireless devices is provided to enhance antenna tuning and reduce power consumption of wireless devices. A sensor management component (SMC) obtains sensor information from sensors associated with a wireless device and determines position and/or orientation of the wireless device in relation to the user, and/or tracks movement of the wireless device. The SMC communicates sensor-based information relating to the position, orientation, and/or movement associated with the wireless device to a tuner management component (TMC) associated with a tuner component and a set of antennas. The TMC determines electrical measurements of the signal from the set of antennas, and determines a tuning setting for the set of antennas based on the sensor-based information and/or the electrical measurements. The TMC provides control information to the tuner component to adjust the tuning of the set of antennas based on the tuning setting.
Abstract translation: 提供用于无线设备的天线调谐的传感器融合，以增强天线调谐并降低无线设备的功耗。 传感器管理组件（SMC）从与无线设备相关联的传感器获得传感器信息，并且确定无线设备相对于用户的位置和/或取向，和/或跟踪无线设备的移动。 SMC将与无线设备相关联的与位置，方向和/或移动相关的传感器信息传送到与调谐器组件和一组天线相关联的调谐器管理组件（TMC）。 TMC确定来自该组天线的信号的电测量，并且基于基于传感器的信息和/或电测量来确定该组天线的调谐设置。 TMC根据调谐设置向调谐器组件提供控制信息，以调整天线组的调谐。
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27.发明申请MICROELECTROMECHANICAL SYSTEMS (MEMS) MICROPHONE ARRAY WITH DEDICATED AMPLIFIERS 有权微电子系统（MEMS）麦克风阵列与专用放大器公开(公告)号：US20160150325A1
公开(公告)日：2016-05-26
申请号：US14553296
申请日：2014-11-25
Applicant: Invensense, Inc.
Inventor： Omid Oliaei
CPC classification number: H04R1/406 , H03F3/183 , H03F2200/03 , H04R3/005 , H04R29/005 , H04R2201/003 , H04R2499/11 , H04R2499/15
Abstract: Microelectromechanical systems (MEMS) acoustic sensors with dedicated preamplifiers are described. Provided implementations can comprise an array of MEMS acoustic sensor elements each having a dedicated preamplifier. A summation node can add outputs of each preamplifier and an analog to digital converter (ADC) can receive the summed outputs. Other implementations can comprise an array of MEMS acoustic sensors each having dedicated preamplifiers. Some of the preamplifiers receive an invert signal and an ADC can subtract inverted signals from non-inverted signals.
Abstract translation: 描述了具有专用前置放大器的微机电系统（MEMS）声传感器。 所提供的实现可以包括每个具有专用前置放大器的MEMS声学传感器元件的阵列。 一个求和节点可以增加每个前置放大器的输出，一个模数转换器（ADC）可以接收相加的输出。 其他实施方案可以包括每个具有专用前置放大器的MEMS声学传感器的阵列。 一些前置放大器接收反相信号，ADC可以从非反相信号中减去反相信号。
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28.发明申请MICROELECTROMECHANICAL SYSTEMS (MEMS) ACOUSTIC SENSOR-BASED GESTURE RECOGNITION 审中-公开微电子机械系统（MEMS）基于声学传感器的手势识别公开(公告)号：US20160091308A1
公开(公告)日：2016-03-31
申请号：US14503012
申请日：2014-09-30
Applicant: INVENSENSE, INC.
Inventor： Omid Oliaei
Abstract: Microelectromechanical systems (MEMS) acoustic sensor-based gesture recognition associated with detecting gestures is described. Provided implementations can comprise MEMS acoustic sensor elements that receive signals reflected off an object. A time sequence associated with each of the MEMS acoustic sensor elements detecting proximity of the object is determined. A gesture is identified based on the time sequence. Functions of a device are controlled according to the gesture.
Abstract translation: 描述了与检测手势相关联的微机电系统（MEMS）基于声学传感器的手势识别。 所提供的实现可以包括接收从对象反射的信号的MEMS声学传感器元件。 确定与检测物体的接近度的每个MEMS声学传感器元件相关联的时间序列。 基于时间序列识别手势。 根据手势控制设备的功能。
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公开(公告)号：US10200794B2
公开(公告)日：2019-02-05
申请号：US14737900
申请日：2015-06-12
Applicant: INVENSENSE, INC.
Inventor： Omid Oliaei
Abstract: Detection of audible and ultrasonic signals is provided by a microelectromechanical microphone. The detection range of ultrasonic signals can be configurable. In certain embodiments, the microelectromechanical microphone can include a band-pass sigma-delta modulator that can generate a digital signal representative of an ultrasonic signal. In addition or in other embodiments, the microelectromechanical microphone can include an event detector device that can determine that an ultrasonic event has occurred and, in response, can send a control signal to an external device. Detection of ultrasonic signals can be utilized in vehicular applications and/or gesture recognition.
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公开(公告)号：US10182296B2
公开(公告)日：2019-01-15
申请号：US14537991
申请日：2014-11-11
Applicant: INVENSENSE, INC.
Inventor： Omid Oliaei , Fariborz Assaderaghi
Abstract: Providing security features in an audio sensor is presented herein. A micro-electro-mechanical system (MEMS) microphone can include an acoustic membrane that converts an acoustic signal into an electrical signal; an electronic amplifier that increases an amplitude of the electrical signal to generate an amplified signal; and switch(es) configured to prevent propagation of a direct current (DC) voltage source to the MEMS microphone; prevent propagation of the DC voltage source to the electronic amplifier; prevent propagation of the electrical signal to the electronic amplifier; and/or prevent propagation of the amplified signal to an external device.
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