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    BACK VOLUME FREE SENSOR PACKAGE
    1.
    发明申请
    BACK VOLUME FREE SENSOR PACKAGE 审中-公开

    公开(公告)号：WO2019133644A1

    公开(公告)日：2019-07-04

    申请号：PCT/US2018/067561

    申请日：2018-12-26

    Applicant: KNOWLES ELECTRONICS, LLC

    Inventor： BEARD, John James Lorimer ,  DU, Yu

    IPC: H04R19/00 ,  B81C1/00 ,  H04R19/04

    CPC classification number: H04R19/005 ,  H04R19/04 ,  H04R2201/003

    Abstract: A sensor device includes a base having a front surface and an opposing back surface. The base defines a bottom port extending between the front surface and the back surface. The sensor further includes a microelectromechanical systems (MEMS) transducer disposed over the base over the bottom port and an integrated circuit (IC) disposed over the base. The sensor also includes an acoustically transparent cover disposed on the base covering the MEMS transducer and the IC. The acoustically transparent cover is configured to provide high acoustic permittivity.

    A MEMS MICROPHONE AND A MANUFACTURING METHOD THEREOF
    3.
    发明申请
    A MEMS MICROPHONE AND A MANUFACTURING METHOD THEREOF 审中-公开

    公开(公告)号：WO2018218509A1

    公开(公告)日：2018-12-06

    申请号：PCT/CN2017/086615

    申请日：2017-05-31

    Applicant: GOERTEK.INC

    Inventor： ZOU, Quanbo

    IPC: H04R1/08 ,  B81B7/02 ,  B81C99/00

    CPC classification number: H04R31/00 ,  H04R19/00 ,  H04R2201/003

    Abstract: A MEMS microphone and a manufacturing method thereof are provided. The MEMS microphone comprises a MEMS microphone chip (103) and a housing with an acoustic port (106). The MEMS microphone chip (103) is mounted in the housing, and a mesh plug (107) is mounted in the acoustic port (106) and made from a mesh material which has a mesh structure that is suitable for passage of sound.

    一种压电式麦克风
    4.
    发明申请
    一种压电式麦克风 审中-公开

    公开(公告)号：WO2018214321A1

    公开(公告)日：2018-11-29

    申请号：PCT/CN2017/099519

    申请日：2017-08-29

    Applicant: 歌尔股份有限公司

    Inventor： 詹竣凱 ,  周宗燐 ,  蔡孟錦

    IPC: H04R17/02

    CPC classification number: H04R17/02 ,  H01L41/083 ,  H04R19/04 ,  H04R2201/003

    Abstract: 本发明公开了一种压电式麦克风，包括具有背腔的衬底，以及通过绝缘层连接在衬底上方的压电膜；在所述压电膜上位于压电膜与衬底连接点内侧的位置设置有多个镂空孔，所述压电膜上的镂空孔至少部分地与衬底重叠在一起，所述压电膜上镂空孔的位置与衬底之间具有间隙，所述间隙与镂空孔一起被构造为通道。相对传统的镂空结构而言，本发明的间隙可以阻碍声音直接通过镂空孔传出，从而可以大大降低该压电式麦克风低频信号、中频信号的泄漏量，提高了压电式麦克风的性能。而且该间隙还可有效防止粉尘、微粒、水入侵对芯片产生伤害。

    ACOUSTIC INPUT DEVICES COMPRISING ACOUSTIC PORTS AND TRANSDUCERS
    5.
    发明申请
    ACOUSTIC INPUT DEVICES COMPRISING ACOUSTIC PORTS AND TRANSDUCERS 审中-公开

    公开(公告)号：WO2018136079A1

    公开(公告)日：2018-07-26

    申请号：PCT/US2017/014318

    申请日：2017-01-20

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： LIU, Wensen ,  CHOI, HyunWoo

    IPC: H04R19/04

    CPC classification number: H04R3/005 ,  H04R1/04 ,  H04R1/406 ,  H04R2201/003 ,  H04R2499/11 ,  H04R2499/13 ,  H04R2499/15

    Abstract: In some examples, an acoustic input device includes a housing comprising a plurality of acoustic ports, and a plurality of single-port acoustic transducers within the housing to receive respective acoustic waves from an environment outside the acoustic input device through corresponding acoustic ports of the plurality of acoustic ports, where a first acoustic port of the plurality of acoustic ports is located on a first surface of the housing, and a second acoustic port of the plurality of acoustic ports is located on a second surface of the housing that is opposite the first surface. The acoustic input device further includes a controller within the housing to receive outputs of the plurality of acoustic transducers.

    SPLIT SIGNAL DIFFERENTIAL MEMS MICROPHONE
    7.
    发明申请
    SPLIT SIGNAL DIFFERENTIAL MEMS MICROPHONE 审中-公开
    分离信号微分MEMS麦克风

    公开(公告)号：WO2018013571A1

    公开(公告)日：2018-01-18

    申请号：PCT/US2017/041542

    申请日：2017-07-11

    Applicant: KNOWLES ELECTRONICS, LLC ,  AMS AG

    Inventor： ALBERS, John J. ,  FROEHLICH, Thomas

    IPC: H04R19/00 ,  H04R19/04 ,  H04R3/00

    CPC classification number: H03F3/187 ,  G10K11/178 ,  H02M3/07 ,  H03F1/56 ,  H03F3/45475 ,  H04R3/00 ,  H04R3/04 ,  H04R19/005 ,  H04R19/016 ,  H04R19/04 ,  H04R2201/003 ,  H04R2499/11

    Abstract: An integrated circuit includes a first amplifier and a second amplifier. A first impedance matching circuit is coupled to the first amplifier, a first charge pump, and a single MEMS transducer. A second impedance matching circuit is coupled to the second amplifier, a second charge pump, and to the single MEMS transducer. A first capacitive load as measured at an input of first amplifier, and a second capacitive load as measured at an input of the second amplifier exist. The first capacitive load and the second capacitive load are balanced with respect to each other. A single pressure change causes the single MEMS transducer to create a first electrical signal and a second electrical signal. Both the first electrical signal and the second electrical signal are matched or approximately matched in magnitude, and 180 degrees or approximately 180 degrees out of phase with respect to each other.

    Abstract translation: 集成电路包括第一放大器和第二放大器。 第一阻抗匹配电路耦合到第一放大器，第一电荷泵和单个MEMS换能器。 第二阻抗匹配电路耦合到第二放大器，第二电荷泵和单个MEMS换能器。 存在在第一放大器的输入端处测量的第一电容性负载以及在第二放大器的输入端处测量的第二电容性负载。 第一电容性负载和第二电容性负载相对于彼此平衡。 单个压力变化导致单个MEMS换能器产生第一电信号和第二电信号。 第一电信号和第二电信号在幅度上匹配或近似匹配，并且相对于彼此异相180度或近似180度。

    VORRICHTUNG UND VERFAHREN ZUM AKTIVIEREN EINER SENSOREINRICHTUNG
    8.
    发明申请
    VORRICHTUNG UND VERFAHREN ZUM AKTIVIEREN EINER SENSOREINRICHTUNG 审中-公开
    用于激活传感器装置的装置和方法

    公开(公告)号：WO2017220235A1

    公开(公告)日：2017-12-28

    申请号：PCT/EP2017/059605

    申请日：2017-04-24

    Applicant: ROBERT BOSCH GMBH

    Inventor： PIRK, Tjalf ,  PURKL, Fabian ,  PANTEL, Daniel

    IPC: G10L25/78 ,  H04R17/02 ,  H04R29/00 ,  G10L15/08

    CPC classification number: G10L25/78 ,  G10L15/10 ,  G10L2015/088 ,  H04R3/005 ,  H04R17/02 ,  H04R2201/003

    Abstract: Die Erfindung betrifft eine Aktivierungsvorrichtung (1) zum Aktivieren einer externen Sensoreinrichtung (12), mit einer Vielzahl von Schallwandlereinrichtungen (10-i; 10a; 10b) mit einer jeweiligen Resonanzfrequenz und einer jeweiligen Sensitivität, welche dazu ausgebildet sind, ein Schallsignal zu erfassen, das erfasste Schallsignal in ein elektrisches Signal umzuwandeln und das elektrische Signal auszugeben, wobei sich die Resonanzfrequenzen und/oder Sensitivitäten der Schallwandlereinrichtungen (10-i; 10a; 10b) zumindest teilweise voneinander unterscheiden; und einer Auswerteeinrichtung (11), welche dazu ausgebildet ist, durch Auswerten von mindestens einem der ausgegebenen elektrischen Signale ein vorgegebenes Schallmuster zu erkennen und in diesem Fall ein Aktivierungssignal an die externe Sensoreinrichtung (12) auszugeben, um die externe Sensoreinrichtung (12) zu aktivieren.

    Abstract translation:

    本发明涉及具有多个换能器装置的激活装置（1），用于激活一个外部传感器装置（12）（10-I; 10A; 10B）具有各自的谐振频率和各自的灵敏度BEAR吨， 其被设计成检测声音信号，检测到的声音信号转换成电信号并输出​​该电信号，其中，所述谐振频率和/或灵敏度＆AUML;第换能器装置（10-i的; 10A; 10B）彼此至少部分地不同; 并且其适于评估装置（11），以通过输出的电信号的预定声音模式并输出在此情况下的激活信号输出到外部传感器设备（12），以使外部传感器装置中的至少一个的评估检测（12）

    DIGITAL MICROPHONES
    9.
    发明申请
    DIGITAL MICROPHONES 审中-公开
    数字麦克风

    公开(公告)号：WO2017144890A1

    公开(公告)日：2017-08-31

    申请号：PCT/GB2017/050479

    申请日：2017-02-23

    Applicant: CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LIMITED

    Inventor： LESSO, John Paul ,  MELANSON, John Laurence

    IPC: H04R3/00 ,  H04R19/00 ,  H04R19/04

    CPC classification number: H04R3/06 ,  H04R3/00 ,  H04R19/005 ,  H04R19/04 ,  H04R2201/003 ,  H04R2217/03 ,  H04R2410/00 ,  H04R2420/09 ,  H04R2430/03 ,  H04R2499/11

    Abstract: This application relates to methods and apparatus for digital microphones. Disclosed is a digital microphone apparatus (300) for outputting a digital output signal (DATA) at a sample rate defined by a received clock signal (CLK). The apparatus includes a band splitter (302) configured to receive a microphone signal (S MD ) indicative of an output of a microphone transducer and split said microphone signal into first signal path (S P1 ) for frequencies in a first band and a second signal path (S P2 ) for frequencies in a second band, the frequencies of the second band being higher than the frequencies in the first band. A modulation block (304) is configured to operate on the second signal path to down-convert signals in the second signal path from the second frequency band to a lower frequency band.

    Abstract translation: 本申请涉及用于数字麦克风的方法和装置。 公开了一种用于以由接收到的时钟信号（CLK）定义的采样率输出数字输出信号（DATA）的数字麦克风装置（300）。 该设备包括：频带分离器（302），被配置为接收指示麦克风换能器的输出的麦克风信号（S MD），并且将所述麦克风信号分成第一信号路径（S 1， ）用于第一频带中的频率和用于第二频带中的频率的第二信号路径（S P2），第二频带的频率高于第一频带中的频率。 调制块（304）被配置为在第二信号路径上操作以将第二信号路径中的信号从第二频带下变频到较低频带。

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