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公开(公告)号：US20190104351A1
公开(公告)日：2019-04-04
申请号：US16206916
申请日：2018-11-30
IPC分类号： H04R1/02 , B81B7/02 , H04R1/04 , H04R19/00 , H04R19/04 , H04R3/00 , B81B7/00 , B81C1/00 , G01L27/00 , G01L23/12
CPC分类号： H04R1/028 , B81B7/0061 , B81B7/02 , B81B2201/012 , B81B2201/0257 , B81B2201/0264 , B81B2207/012 , B81C1/00238 , G01L23/125 , G01L27/005 , H01L2224/48091 , H01L2924/15151 , H01L2924/16152 , H04R1/04 , H04R3/005 , H04R19/005 , H04R19/04 , H04R2201/003 , H04R2430/21 , H01L2924/00014
摘要： A microphone device comprises a microphone die including a microphone motor, an acoustic integrated circuit structured to process signals produced by the microphone motor, and a sensor die stacked on top of the acoustic integrated circuit, wherein the sensor die comprises a pressure sensor. Another microphone comprises a microphone die including a microphone motor and an integrated circuit die. The integrated circuit die comprises an acoustic integrated circuit structured to process signals produced by the microphone motor, a pressure sensor, and a pressure integrated circuit structured to press signals produced by the pressure sensor.
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公开(公告)号：US10887712B2
公开(公告)日：2021-01-05
申请号：US16626596
申请日：2018-06-26
发明人： Kim Spetzler Berthelsen , Michael Kuntzman , Claus Furst , Sung Bok Lee , Mohammad Shajaan , Venkataraman Chandrasekaran
摘要： A microphone assembly includes an acoustic transducer and an audio signal electrical circuit configured to receive an output signal from the acoustic transducer. The output signal includes an audio signal component and a tracking signal component. The audio signal component is representative of an acoustic signal detected by the acoustic transducer and the tracking signal component is based on an input tracking signal applied to the acoustic transducer. The audio signal electrical circuit includes an analog to digital converter configured to convert the output signal into a digital signal, an extraction circuit configured to separate the tracking signal component and the audio signal component from the digital signal, an envelope estimation circuit configured to estimate a tracking signal envelope from the tracking signal component, and a signal correction circuit configured to reduce distortion in the audio signal component using the tracking signal envelope.
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公开(公告)号：US20190194013A1
公开(公告)日：2019-06-27
申请号：US16312324
申请日：2017-06-09
CPC分类号： B81B7/0061 , B81B2201/0214 , B81B2201/0257 , B81B2201/0278 , B81B2207/012 , H04R1/04 , H04R19/04 , H04R2201/003
摘要： Systems and apparatuses for a microelectromechanical system (MEMS) device. The MEMS device includes a housing, a transducer, and a sensor. The housing includes a substrate defining a port and a cover. The substrate and the cover cooperatively form an internal cavity. The port fluidly couples the internal cavity to an external environment. The transducer is disposed within the internal cavity and positioned to receive acoustic energy through the port. The transducer is configured to convert the acoustic energy into an electrical signal. The sensor is disposed within the internal cavity and positioned to receive a gas through the port. The sensor is configured to facilitate detecting at least one of an offensive odor, smoke, a volatile organic compound, carbon monoxide, carbon dioxide, a nitrogen oxide, methane, and ozone.
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公开(公告)号：US20170347174A1
公开(公告)日：2017-11-30
申请号：US15604414
申请日：2017-05-24
CPC分类号： H04R1/028 , B81B7/0061 , B81B7/02 , B81B2201/012 , B81B2201/0257 , B81B2201/0264 , B81C1/00238 , G01L23/125 , G01L27/005 , H01L2224/48091 , H01L2924/15151 , H01L2924/16152 , H04R1/04 , H04R3/005 , H04R19/005 , H04R19/04 , H04R2201/003 , H04R2430/21 , H01L2924/00014
摘要： A microphone device comprises a microphone die including a first microphone motor and a second microphone motor, an acoustic integrated circuit structured to process signals produced by the first microphone motor and the second microphone motor, and a sensor die stacked on top of the acoustic integrated circuit, wherein the sensor die comprises a pressure sensor. Another microphone comprises a microphone die including a first microphone motor and a second microphone motor and an integrated circuit die. The integrated circuit die comprises an acoustic integrated circuit structured to process signals produced by the first microphone motor and the second microphone motor, a pressure sensor, and a pressure integrated circuit structured to press signals produced by the pressure sensor.
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公开(公告)号：US11825266B2
公开(公告)日：2023-11-21
申请号：US16982497
申请日：2019-03-20
发明人： Mohsin Nawaz , Shubham Shubham , David Schafer , Michael Pedersen , Claus Furst , Mohammad Shajaan , Jay Cech
CPC分类号： H04R19/04 , B81B7/02 , B81C1/00341 , G01L9/0072 , G01L19/14 , H04R31/00 , B81B2201/0257 , B81B2201/0264 , B81B2203/0127 , B81B2203/0136 , B81B2207/03 , B81C2201/0109 , B81C2201/0132 , H04R2201/003
摘要： Microphones including a housing defining a cavity, a plurality of conductors positioned within the cavity, at least one dielectric bar positioned within the cavity, and a transducer diaphragm. The conductors are structured to move in response to pressure changes while the housing remains fixed. A first conductor generates first electrical signals responsive to the pressure changes resulting from changes in an atmospheric pressure. A second conductor generates second electrical signals responsive to the pressure changes resulting from acoustic activity. The dielectric bar is fixed with respect to the cavity and remains fixed under the pressure changes. The dielectric bar is adjacent to at least one of the conductors. In response to an applied pressure that is an atmospheric pressure and/or an acoustic pressure, the transducer diaphragm exerts a force on the housing and displaces at least a portion of conductors with respect to the dielectric bar.
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公开(公告)号：US10405078B2
公开(公告)日：2019-09-03
申请号：US16206916
申请日：2018-11-30
IPC分类号： H04R1/02 , B81B7/02 , H04R1/04 , H04R19/00 , H04R19/04 , H04R3/00 , B81B7/00 , B81C1/00 , G01L23/12 , G01L27/00
摘要： A microphone device comprises a microphone die including a microphone motor, an acoustic integrated circuit structured to process signals produced by the microphone motor, and a sensor die stacked on top of the acoustic integrated circuit, wherein the sensor die comprises a pressure sensor. Another microphone comprises a microphone die including a microphone motor and an integrated circuit die. The integrated circuit die comprises an acoustic integrated circuit structured to process signals produced by the microphone motor, a pressure sensor, and a pressure integrated circuit structured to press signals produced by the pressure sensor.
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公开(公告)号：US09502028B2
公开(公告)日：2016-11-22
申请号：US14512877
申请日：2014-10-13
发明人： Dibyendu Nandy , Yang Li , Henrik Thomsen , Claus Furst
CPC分类号： G10L15/20 , G06F1/32 , G10L15/28 , G10L19/002 , G10L25/84 , G10L2015/088
摘要： Streaming audio is received. The streaming audio includes a frame having plurality of samples. An energy estimate is obtained for the plurality of samples. The energy estimate is compared to at least one threshold. In addition, a band pass estimate of the signal is determined. An energy estimate is obtained for the band-passed plurality of samples. The two energy estimates are compared to at least one threshold each. Based upon the comparison operation, a determination is made as to whether speech is detected.
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公开(公告)号：US20150112673A1
公开(公告)日：2015-04-23
申请号：US14522129
申请日：2014-10-23
发明人： Dibyendu Nandy , Yang Li , Henrick Thomsen , Claus Furst
IPC分类号： G10L15/20
CPC分类号： G10L15/20 , G06F1/32 , G10L15/28 , G10L19/002 , G10L25/84 , G10L2015/088
摘要： Streaming audio is received. The streaming audio includes a frame having plurality of samples. An energy estimate is obtained for the plurality of samples. The energy estimate is compared to at least one threshold. In addition, a band pass estimate of the signal is determined. An energy estimate is obtained for the band-passed plurality of samples. The two energy estimates are compared to at least one threshold each. Based upon the comparison operation, a determination is made as to whether speech is detected.
摘要翻译： 接收流音频。 流式音频包括具有多个样本的帧。 对于多个样本获得能量估计。 将能量估计与至少一个阈值进行比较。 此外，确定信号的带通估计。 对带通的多个样本获得能量估计。 将两个能量估计值与至少一个阈值进行比较。 基于比较操作，确定是否检测到语音。
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公开(公告)号：US11104571B2
公开(公告)日：2021-08-31
申请号：US16312324
申请日：2017-06-09
摘要： Systems and apparatuses for a microelectromechanical system (MEMS) device. The MEMS device includes a housing, a transducer, and a sensor. The housing includes a substrate defining a port and a cover. The substrate and the cover cooperatively form an internal cavity. The port fluidly couples the internal cavity to an external environment. The transducer is disposed within the internal cavity and positioned to receive acoustic energy through the port. The transducer is configured to convert the acoustic energy into an electrical signal. The sensor is disposed within the internal cavity and positioned to receive a gas through the port. The sensor is configured to facilitate detecting at least one of an offensive odor, smoke, a volatile organic compound, carbon monoxide, carbon dioxide, a nitrogen oxide, methane, and ozone.
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公开(公告)号：US20210029470A1
公开(公告)日：2021-01-28
申请号：US16982497
申请日：2019-03-20
发明人： Mohsin Nawaz , Shubham Shubham , David Schafer , Michael Pedersen , Claus Furst , Mohammad Shajaan , Jay Cech
摘要： Microphones including a housing defining a cavity, a plurality of conductors positioned within the cavity, at least one dielectric bar positioned within the cavity, and a transducer diaphragm. The conductors are structured to move in response to pressure changes while the housing remains fixed. A first conductor generates first electrical signals responsive to the pressure changes resulting from changes in an atmospheric pressure. A second conductor generates second electrical signals responsive to the pressure changes resulting from acoustic activity. The dielectric bar is fixed with respect to the cavity and remains fixed under the pressure changes. The dielectric bar is adjacent to at least one of the conductors. In response to an applied pressure that is an atmospheric pressure and/or an acoustic pressure, the transducer diaphragm exerts a force on the housing and displaces at least a portion of conductors with respect to the dielectric bar.
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