SYSTEMS AND METHODS FOR USING ELECTROSTATIC MICROPHONE
    1.
    发明公开
    SYSTEMS AND METHODS FOR USING ELECTROSTATIC MICROPHONE 审中-公开
    SYSTEME UND VERFAHREN ZUR VERWENDUNG EINES ELEKTROSTATISCHEN MIKROFONS

    公开(公告)号:EP3087759A4

    公开(公告)日:2017-07-19

    申请号:EP14874965

    申请日:2014-12-25

    申请人: WIZEDSP LTD

    发明人: GABAI OZ PRIMO HAIM

    摘要: A method and a system for ultra-low-power acoustic sensor including a buffer transistor, which gate terminal is connected to a first terminal of a capacitive acoustic sensor, which drain terminal is connected via a load network to a power source and to an output terminal, and which source terminal is connected to the regulated current source, where the regulated current source is connected between the source terminal of the buffer transistor and a reference terminal, and where the reference terminal being connectable to a second terminal of the capacitive acoustic sensor.

    摘要翻译: 一种用于超低功率声学传感器的方法和系统,所述超低功率声学传感器包括缓冲晶体管,所述缓冲晶体管的栅极端子连接到电容式声学传感器的第一端子,所述漏极端子经由负载网络连接到电源和输出 并且所述源极端子连接到所述经调节的电流源,其中所述经调节的电流源连接在所述缓冲晶体管的源极端子与参考端子之间,并且其中所述参考端子可连接到所述电容式声学传感器的第二端子 。

    MEMS MICROPHONE AND METHOD OF OPERATING THE MEMS MICROPHONE
    2.
    发明公开
    MEMS MICROPHONE AND METHOD OF OPERATING THE MEMS MICROPHONE 审中-公开
    MEMS-MIKROFON UND VERFAHREN ZUM BETRIEB DES MEMS-MIKROFONS

    公开(公告)号:EP2883364A1

    公开(公告)日:2015-06-17

    申请号:EP12750576.6

    申请日:2012-08-10

    申请人: Epcos AG

    摘要: The present invention concerns a MEMS Microphone (1) comprising, a transducer element (2) for providing an electrical signal, a first part (3) for receiving the electrical signal from the transducer element (2) and for providing a processed signal, a second part (4) for receiving the processed signal from the first part (3) and for providing an output signal of the MEMS microphone (1), and a gain control unit (5) that is enabled to adjust a gain setting of the first part (3) and to adjust a gain setting of the second part (4). Further, another aspect of the present invention concerns a method of operating said MEMS microphone (1) comprising the step of adjusting a gain setting of the first part (3) and adjusting a gain setting of the second part (4).

    摘要翻译: 本发明涉及一种MEMS麦克风(1),包括:用于提供电信号的换能器元件(2),用于从换能器元件(2)接收电信号并用于提供经处理的信号的第一部分(3) 第二部分(4),用于从第一部分(3)接收经处理的信号并提供MEMS麦克风(1)的输出信号;以及增益控制单元(5),其能够调整第一 部分(3)并且调整第二部分(4)的增益设置。 此外,本发明的另一方面涉及一种操作所述MEMS麦克风(1)的方法,包括调整所述第一部分(3)的增益设置并调整所述第二部分(4)的增益设置的步骤。

    POTENTIAL FIXING DEVICE AND POTENTIAL FIXING METHOD
    4.
    发明公开
    POTENTIAL FIXING DEVICE AND POTENTIAL FIXING METHOD 审中-公开
    潜在的恐怖主义

    公开(公告)号:EP1464967A2

    公开(公告)日:2004-10-06

    申请号:EP02765438.3

    申请日:2002-09-06

    CPC分类号: G01D5/24 G01N27/22 H04R3/06

    摘要: An electric potential fixing apparatus of the present invention is an electric potential fixing apparatus that is connected to a connection line (17) between two capacitances, the first capacitance (14) and the second capacitance (15) that is directly connected to the first capacitance, comprises the first high resistance (3), the second high resistance (4) that is connected directly to the first high resistance, a voltage dividing unit that outputs electric potential divided by the first high resistance and the second high resistance to the output terminal, the third capacitance (8) that is connected in parallel to at least either of the first high resistance and the second high resistance, and a voltage supply unit (1) operable to maintain constantly electric potential of the connection line between the two capacitances (14) and (15), holding combined total electric charge quantity of the first capacitance and the second capacitance, and the output terminal of the voltage supply unit is connected to a signal line between the two capacitances.

    摘要翻译: 本发明的电位定影装置是与两电容之间的连接线(17)连接的电位定影装置,与第一电容直接连接的第一电容(14)和第二电容(15) 包括第一高电阻(3),直接连接到第一高电阻的第二高电阻(4),将分压第一高电阻和第二高电阻的电位输出到输出端子的分压单元 ,并联连接到第一高电阻和第二高电阻中的至少一个的第三电容(8)和电压供应单元(1),其可操作以保持连接线在两个电容之间的恒定电位( 14)和(15),保持第一电容和第二电容的组合总电荷量,以及电压供给单元的输出端 连接到两个电容之间的信号线。

    IMPROVED STEP-UP CIRCUIT FOR DRIVING FULL-RANGE-ELEMENT ELECTROSTATIC LOUDSPEAKERS
    5.
    发明公开
    IMPROVED STEP-UP CIRCUIT FOR DRIVING FULL-RANGE-ELEMENT ELECTROSTATIC LOUDSPEAKERS 失效
    改进UP变换电路,用于控制静电式扬声器宽带元素。

    公开(公告)号:EP0057215A1

    公开(公告)日:1982-08-11

    申请号:EP81902229.0

    申请日:1981-08-10

    IPC分类号: H04R3 H04R19

    CPC分类号: H04R19/02 H04R3/06

    摘要: Dans le domaine technique de la reproduction sonore au moyen de haut-parleurs electrostatiques a large bande passante on rencontre des problemes dans le circuit d'attaque. Le circuit d'attaque decrit permet d'eliminer les inconvenients que presentent les amplificateurs de l'art anterieur concus specialement, du type a transformateur elevateur, et de rendre les haut-parleurs electrostatiques plus competitifs du point de vue acoustique et economique. Les problemes resolus sont les suivants: obtenir une caracteristique egalisee de passage complementaire a la charge capacitive et a la resistance de radiation changeant radicalement sur toute la gamme audible-signaux sonores d'attaque precis a haute tension, d'un rendement eleve - acoustiquement "plat" (transitions douces d'amplitude, de phase et d'impedance), adaptation appropriee de l'impedance entre les amplificateurs conventionnels possedant une faible impedance et une faible tension d'entree et les haut-parleurs, un prix modere, un poids reduit et un encombrement limite. Le circuit d'attaque utilise deux transformateurs audio specialement concus (T1, T2) en liaison parallele-bilaterale comprenant des reseaux RC (R2, R3, C2, C3). Afin d'assurer une reponse optimale un transformateur (T1) travaille dans une plage de frequence allant de 30Hz a environ 5kHz, et l'autre transformateur (T2) possedant une impedance d'entree cooperative ajoutee (R1-C1) travaille dans une plage allant de quelques centaines de Hz jusqu'a 20kHz. Une conservation d'energie a resonance aux hautes frequences est utilisee.

    Sensor circuit and calibration method
    8.
    发明公开
    Sensor circuit and calibration method 有权
    Sensorschaltung und Kalibrierverfahren

    公开(公告)号:EP2653845A1

    公开(公告)日:2013-10-23

    申请号:EP12164636.8

    申请日:2012-04-18

    申请人: NXP B.V.

    摘要: A read out circuit for a sensor uses a feedback loop to bias the sensor to a desired operating point, such as the maximal possible sensitivity, but without the problem of an instable sensor position as known for the conventional read-out with constant charge. The reference bias to which the circuit is controlled is also varied using feedback control, but with a slower response than the main bias control feedback loop.

    摘要翻译: 用于传感器的读出电路使用反馈回路将传感器偏置到期望的操作点,例如最大可能的灵敏度,但不存在如常规电荷的传统读出所知的不稳定的传感器位置的问题。 控制电路的参考偏置也可以使用反馈控制来改变,但是响应比主偏压控制反馈回路慢。