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45 条记录 (耗时 0.016 秒)

    Acoustic Transducer with Gap-Controlling Geometry and Method of Manufacturing an Acoustic Transducer
    31.
    发明申请
    Acoustic Transducer with Gap-Controlling Geometry and Method of Manufacturing an Acoustic Transducer 审中-公开

    公开(公告)号：US20190281393A1

    公开(公告)日：2019-09-12

    申请号：US16353934

    申请日：2019-03-14

    申请人： Vesper Technologies Inc.

    发明人： Karl Grosh ,  Robert J. Littrell

    IPC分类号： H04R17/02 ,  H04R31/00 ,  H01L41/27 ,  H01L41/314 ,  H01L41/332 ,  H04R7/06

    摘要： A transducer of the preferred embodiment including a transducer and a plurality of adjacent, tapered cantilevered beams. Each of the beams define a beam base, a beam tip, and a beam body disposed between the beam base and the beam tip. The beams are arranged such that each of the beam tips extends toward a common area. Each beam is joined to the substrate along the beam base and is free from the substrate along the beam body. A preferred method of manufacturing a transducer can include: depositing alternating layers of piezoelectric and electrode onto the substrate in block, processing the deposited layers to define cantilever geometry in block, depositing metal traces in block, and releasing the cantilevered beams from the substrate in block.

    Adjusting resonant frequencies based on feedback networks
    33.
    发明授权
    Adjusting resonant frequencies based on feedback networks 有权

    公开(公告)号：US10001391B1

    公开(公告)日：2018-06-19

    申请号：US14826188

    申请日：2015-08-13

    申请人： Vesper Technologies Inc.

    发明人： Robert J. Littrell ,  Karl Grosh

    IPC分类号： G01D18/00 ,  G01H13/00 ,  H04R3/06 ,  H04R19/04

    CPC分类号： G01D18/00 ,  G01H13/00 ,  H04R3/002 ,  H04R3/04 ,  H04R3/06 ,  H04R19/04 ,  H04R2201/003

    摘要： An electronic device comprises a sensor comprising first and second electrodes, with the sensor being configured for a first acoustic displacement due to input acoustic pressure; circuitry configured to measure a charge between the first and second electrodes due to the input acoustic pressure and to apply a voltage to cause a second acoustic displacement of the sensor that is out of phase with the first acoustic displacement, with the applied voltage further causing a charge to develop across the sensor, and with the first and second acoustic displacements causing an increase in damping in a resonance frequency of the sensor, relative to damping of the resonance frequency of the sensor prior to applying the voltage; and a passive electronic component configured to cancel out the charge developed across the sensor due to the applied voltage.

    Piezoelectric Accelerometer with Wake Function
    35.
    发明申请
    Piezoelectric Accelerometer with Wake Function 有权

    公开(公告)号：US20220344571A1

    公开(公告)日：2022-10-27

    申请号：US17725070

    申请日：2022-04-20

    申请人： Vesper Technologies Inc.

    发明人： Robert J. Littrell

    IPC分类号： H01L41/113 ,  H01L41/053 ,  B81B3/00

    摘要： A sensor device that senses proper acceleration. The sensor device includes a substrate, a spacer layer supported over a first surface of the substrate, at least a first cantilever beam element having a base and a tip, the base attached to the spacer layer, and which is supported over and spaced from the substrate by the spacer layer. The at least first cantilever beam element further including at least a first layer comprised of a piezoelectric material, a pair of electrically conductive layers disposed on opposing surfaces of the first layer, and a mass supported at the tip portion of the at least first cantilever beam element.

    TRANSDUCER SYSTEM WITH CONFIGURABLE ACOUSTIC OVERLOAD POINT
    36.
    发明申请
    TRANSDUCER SYSTEM WITH CONFIGURABLE ACOUSTIC OVERLOAD POINT 有权

    公开(公告)号：US20220279286A1

    公开(公告)日：2022-09-01

    申请号：US17747454

    申请日：2022-05-18

    申请人： Vesper Technologies, Inc.

    发明人： Robert Littrell ,  Ronald Gagnon

    IPC分类号： H04R19/04 ,  H04R3/00 ,  H04R17/02 ,  H04R1/04 ,  H04R19/00

    摘要： A MEMS transducer system has a transducer configured to convert a received signal into an output signal for forwarding by a transducer output port, and an integrated circuit having an IC input in communication with the transducer output port. The IC input is configured to receive an IC input signal produced as a function of the output signal. The system also has a dividing element coupled between the IC input and the transducer output port. The dividing element is configured to selectively attenuate one or more signals into the IC input to at least in part produce the IC input signal. Other implementations may couple a feedback loop to the ground of the transducer (similar to bootstrapping), or pick off voltages at specific portions of the transducer.

    Auto Mute Feature Using A Voice Accelerometer and A Microphone
    39.
    发明申请
    Auto Mute Feature Using A Voice Accelerometer and A Microphone 有权

    公开(公告)号：US20210383824A1

    公开(公告)日：2021-12-09

    申请号：US17339709

    申请日：2021-06-04

    申请人： Vesper Technologies Inc.

    发明人： Roberto Condorelli ,  Lorenzo Ponzanelli ,  Shin Nagpal

    IPC分类号： G10L25/78 ,  G10L15/22 ,  H03G3/34

    摘要： Techniques for automatically muting or unmuting an acoustic transducer include receiving a signal representing an output by a voice accelerometer of a device, determining whether the signal is indicative of a presence or absence of voice activity by a user of the device, and generating a control signal that causes an acoustic transducer to be muted responsive to determining that the signal is indicative of an absence of voice activity by the user, or that causes the acoustic transducer to be unmuted response to determining that the signal is indicative of a presence of voice activity by the user.