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1. 发明公开

US20240369402A1 VIBRATION SENSOR WITH AIR VENTING CHANNELS 审中-公开
公开(公告)号：US20240369402A1
公开(公告)日：2024-11-07
申请号：US18570943
申请日：2022-06-14
申请人： Sonion Nederland B.V.
发明人： Adrianus Maria LAFORT , Benjamin Abraham Zeev MIMOUN
IPC分类号： G01H11/06 , H04R25/00
CPC分类号： G01H11/06 , H04R25/48 , H04R2460/13
摘要： The present invention relates to a vibration sensor comprising a carrier substrate comprising a first surface and a second surface, a suspension member and a moveable mass secured thereto, wherein the moveable mass and/or at least part of the suspension member is/are adapted to vibrate when the vibration sensor is exposed to external vibrations, a read-out arrangement for detecting vibrations of the moveable mass and/or at least part of the suspension member, and a signal processor for at least processing an electric signal from the read-out arrangement, wherein the read-out arrangement comprises a capacitor formed by a first capacitor electrode and a second capacitor electrode separated by an air gap, and wherein the first capacitor electrode and/or the second capacitor electrode comprises one or more air venting channels in order to reduce squeeze film damping effects between the first and second capacitor electrodes. The present invention further relates to a hearing device comprising such a vibration sensor and use of the vibration sensor for voice recognition in a hearing device.

2. 发明申请

US20220169499A1 MICRO-ELECTROMECHANICAL TRANSDUCER WITH REDUCED SIZE 有权
公开(公告)号：US20220169499A1
公开(公告)日：2022-06-02
申请号：US17535001
申请日：2021-11-24
申请人： Sonion Nederland B.V.
发明人： Adrianus Maria LAFORT , Rasmus VOSS
IPC分类号： B81B7/02 , H04R19/00
摘要： The present invention relates to a micro-electromechanical transducer comprising a pressure detecting arrangement adapted to detect generated pressure variations, and provide an output signal in response to the detected pressure variations, wherein the pressure detecting arrangement comprises a microphone cartridge and a signal processing unit; a pressure generating arrangement adapted to generate pressure variations in response to vibrations thereof; and a volume separating element comprising one or more openings, wherein the microphone cartridge is at least partly arranged in a first opening of the volume separating element in order to reduce the overall height of the micro-electromechanical transducer. The present invention further relates to a hearing device comprising a micro-electromechanical transducer.

3. 发明公开

US20240302204A1 COMPACT VIBRATION SENSOR 审中-公开
公开(公告)号：US20240302204A1
公开(公告)日：2024-09-12
申请号：US18572008
申请日：2022-06-14
申请人： Sonion Nederland B.V.
发明人： Adrianus Maria LAFORT
IPC分类号： G01H11/08 , H04R1/10
CPC分类号： G01H11/08 , H04R1/10
摘要： The present invention relates to a vibration sensor comprising a carrier substrate comprising a first surface and a second surface, a suspension member and a moveable mass secured thereto, wherein the moveable mass and/or at least part of the suspension member is/are adapted to vibrate when the vibration sensor is exposed to external vibrations, a read-out arrangement for detecting vibrations of the moveable mass and/or at least part of the suspension member, and a signal processor for at least processing an electric signal from the read-out arrangement, wherein the moveable mass forms a first projected area on a plane defined by the carrier substrate, and wherein the signal processor forms a second projected area on the plane defined by the carrier substrate, and wherein the first and second projected areas are, at least partly, spatially overlapping in the plane defined by the carrier substrate. The present invention further relates to a hearing device comprising such a vibration sensor, and use of the vibration sensor for voice recognition in a hearing device.

4. 发明公开

US20240088839A1 AN AMPLIFIER FOR A DUAL BACKPLATE MEMS MICROPHONE 审中-公开
公开(公告)号：US20240088839A1
公开(公告)日：2024-03-14
申请号：US18263961
申请日：2021-11-16
申请人： Sonion Nederland B.V.
发明人： Adrianus Maria LAFORT
IPC分类号： H03F3/183 , G01R31/28 , H04R3/00 , H04R19/04
CPC分类号： H03F3/183 , G01R31/2825 , H04R3/00 , H04R19/04 , H03F2200/03 , H04R2201/003
摘要： An amplifier for a dual backplate MEMS microphone comprising at least a first source follower which has a gate for connection to a first backplate of the dual backplate MEMS microphone, and a load circuit connected to a source of the first source follower which provides an output signal of the filter, which filter comprises a second source follower connected to a second backplate of the dual backplate MEMS microphone, and a distortion detection circuit which is connected to the source of the first source follower and to the source of the second source follower for measuring distortion of the output signal at the source of the first source follower, wherein said distortion detection circuit is connected to a correctional circuit that drives at least a first bias current source for the first source follower.

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