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    PIEZOELECTRIC SPEAKER
    2.
    发明公开
    PIEZOELECTRIC SPEAKER 审中-公开
    压电扬声器

    公开(公告)号：EP3258706A1

    公开(公告)日：2017-12-20

    申请号：EP16748855.0

    申请日：2016-01-07

    Applicant: Tokin Corporation

    Inventor： ABE, Yoshiyuki ,  KUMASAKA, Katsunori ,  SHUTA, Koichi ,  YAMAZAKI, Osamu ,  IKEZAWA, Noriaki ,  KATSUNO, Masafumi

    IPC: H04R17/00 ,  H04R1/30 ,  H04R7/04 ,  H04R23/02

    CPC classification number: H04R17/00 ,  H04R1/025 ,  H04R1/2876 ,  H04R1/30 ,  H04R7/04 ,  H04R7/045 ,  H04R17/10 ,  H04R31/00 ,  H04R2217/03 ,  H04R2400/03 ,  H04R2440/05 ,  H04R2499/11

    Abstract: A piezoelectric speaker (100, 200, ..., or 500) includes a piezoelectric element (1), and a metal vibration part (2, 22, ..., or 352) to which the piezoelectric element (1) is made to adhere through an adhesive part (3). The piezoelectric element (1) is a substantially rectangular plate. The metal vibration part (2, 22, ..., or 352) includes a substantially rectangular plate-shaped part (2, 12a, 32a, ..., 132a, or the like) vibrated by the piezoelectric element. A frequency of a natural vibration mode of the piezoelectric element (1) and a frequency of a natural vibration mode of the metal vibration part (2, 12a, 32a, ..., 132a, or the like) are set to be different from each other.

    Abstract translation: 压电扬声器（100,200，...，或500）包括压电元件（1）和制造该压电元件（1）的金属振动部分（2,22，...，或352） 通过粘合部分（3）粘合。 压电元件（1）是大致矩形的板。 金属振动部（2,22，...，352）包括由压电元件振动的大致矩形的板状部（2,12a，32a，...，132a等）。 压电元件（1）的固有振动模式的频率和金属振动部（2,12a，32a，...，132a等）的固有振动模式的频率被设定为与 彼此。

    ERROR CORRECTION FOR ULTRASONIC AUDIO SYSTEMS
    4.
    发明公开
    ERROR CORRECTION FOR ULTRASONIC AUDIO SYSTEMS 审中-公开
    超声波音频系统的纠错

    公开(公告)号：EP3231192A1

    公开(公告)日：2017-10-18

    申请号：EP15805371.0

    申请日：2015-11-23

    Applicant: Turtle Beach Corporation

    Inventor： KAPPUS, Brian, Alan ,  NORRIS, Elwood, Grant

    IPC: H04R3/04

    CPC classification number: H04R29/00 ,  H04R3/04 ,  H04R2217/03

    Abstract: Systems and methods for removing or reducing distortion in an ultrasonic audio system can include receiving a first audio signal, wherein the first audio signal represents audio content to be reproduced using the ultrasonic audio system; calculating a first error function for the ultrasonic audio system, the first error function comprising an estimate of distortion introduced by reproduction of the audio content by the ultrasonic audio system; transforming the first audio signal into a first pre-conditioned audio signal by combining the first error function with the first audio signal; and modulating the transformed audio signal onto an ultrasonic carrier.

    Abstract translation: 用于去除或减少超声音频系统中的失真的系统和方法可以包括：接收第一音频信号，其中第一音频信号表示将使用超声音频系统再现的音频内容; 计算所述超声波音频系统的第一误差函数，所述第一误差函数包括通过所述超声波音频系统再现所述音频内容而引入的失真的估计; 通过组合第一误差函数与第一音频信号将第一音频信号变换成第一预调节音频信号; 以及将变换后的音频信号调制到超声波载波上。

    DRIVING PARAMETRIC SPEAKERS AS A FUNCTION OF TRACKED USER LOCATION
    5.
    发明公开
    DRIVING PARAMETRIC SPEAKERS AS A FUNCTION OF TRACKED USER LOCATION 审中-公开
    将参数扬声器驱动为跟踪用户位置的功能

    公开(公告)号：EP3162088A2

    公开(公告)日：2017-05-03

    申请号：EP15736134.6

    申请日：2015-06-26

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： FLORENCIO, Dinei ,  ZHANG, Zhengyou

    IPC: H04S7/00

    CPC classification number: H04S7/303 ,  H04R5/0335 ,  H04R5/04 ,  H04R2217/03 ,  H04S1/002 ,  H04S2400/09 ,  H04S2420/01

    Abstract: Described herein are various technologies pertaining to parametric speakers. A parametric speaker is driven based upon a determined location of an ear of a listener. The parametric speaker outputs an ultrasonic beam that comprises several modulated signals, the modulated signals being carrier signals modulated by an audio signal. The parametric speaker is driven such that a main lobe of the ultrasonic beam has a focal point between the ear of the listener and the parametric speaker.

    Abstract translation: 这里描述的是与参数扬声器有关的各种技术。 基于确定的收听者的耳朵的位置来驱动参数扬声器。 参量扬声器输出包含多个调制信号的超声波束，调制信号是由音频信号调制的载波信号。 参数扬声器被驱动，使得超声波束的主瓣具有在收听者的耳朵和参量扬声器之间的焦点。

    Ultrasonic sound reproduction on eardrum
    6.
    发明公开
    Ultrasonic sound reproduction on eardrum 审中-公开
    耳膜上的超声波声音再现

    公开(公告)号：EP2613562A3

    公开(公告)日：2017-05-03

    申请号：EP12197733.4

    申请日：2012-12-18

    Applicant: Sony Mobile Communications AB

    Inventor： Glebe, Dag

    IPC: H04R1/10

    CPC classification number: H04R1/1016 ,  H04R2217/03

    Abstract: The invention is directed to systems, methods and computer program products for producing audible sound by directing ultrasonic signals from an ultrasonic transducer towards an eardrum. An exemplary method includes providing an earphone comprising an ultrasonic transducer, wherein the earphone is positioned close to an ear, wherein the ear includes an ear canal and an eardrum; producing, by the ultrasonic transducer, an ultrasonic signal; and transmitting, by the ultrasonic transducer, the ultrasonic signal, wherein the ultrasonic signal is directed into the ear canal towards the eardrum such that the eardrum receives the ultrasonic sound signal and initiates conversion of the ultrasonic signal into audible sound.

    Abstract translation: 本发明涉及用于通过将来自超声换能器的超声信号引导向鼓膜产生可听声音的系统，方法和计算机程序产品。 示例性方法包括提供包括超声换能器的耳机，其中耳机定位成靠近耳朵，其中耳朵包括耳道和耳膜; 通过超声换能器产生超声信号; 以及由所述超声换能器发送所述超声信号，其中所述超声信号被引导到所述耳道中朝向所述鼓膜，使得所述鼓膜接收所述超声信号并且开始将所述超声信号转换为可听声音。

    SELF-BIAS EMITTER CIRCUIT
    10.
    发明公开
    SELF-BIAS EMITTER CIRCUIT 审中-公开
    具有自偏置发射极电路

    公开(公告)号：EP2962476A1

    公开(公告)日：2016-01-06

    申请号：EP14811254.3

    申请日：2014-05-13

    Applicant: Turtle Beach Corporation

    Inventor： NORRIS, Elwood, G.

    IPC: H04R3/00

    CPC classification number: H04R3/00 ,  A61B8/56 ,  H04R19/02 ,  H04R2217/03

    Abstract: Self-bias emitter circuit configurations (100, 200, 400, 500, 600) can use the amplitude of an input AC carrier signal to provide a DC bias voltage across an emitter (104) for suitable operation. A self-bias emitter circuit can include a transductor {106} with primary (108) matched with an amplifier, while secondary (110} can be matched to the emitter.

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