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    MULTI-DIMENSIONAL PARAMETRIC AUDIO SYSTEM AND METHOD
    13.
    发明公开
    MULTI-DIMENSIONAL PARAMETRIC AUDIO SYSTEM AND METHOD 审中-公开
    多维PARA公制音频系统及其方法

    公开(公告)号：EP2885929A1

    公开(公告)日：2015-06-24

    申请号：EP13756225.2

    申请日：2013-08-16

    Applicant: Turtle Beach Corporation

    Inventor： NORRIS, Elwood, Grant

    IPC: H04S1/00 ,  H04S3/00

    CPC classification number: G10L19/008 ,  H04R2205/041 ,  H04R2217/03 ,  H04S1/002 ,  H04S3/006 ,  H04S2400/11

    Abstract: Systems and methods for producing mullti-dimensionai parametric audio are provided. The systems and methods can be configured to determine a desired spatial position of an audio component relative to a predetermined 'listening position; process the audio, component, for a predetermined number of output channels, wherein the step of processing the audio component comprises determining the appropriate phase, delay, and gain values for each output channel so that the audio component is created at the desired apparent spatial position relative to the listening position; encode two or more output channels of the audio component with the determined phase, delay, and gain values for each output channel; and modulate the encoded output channels onto respective ultrasonic carriers for emission via a predetermined number of ultrasonic emitters.

    OSCILLATOR AND ELECTRONIC DEVICE
    17.
    发明公开
    OSCILLATOR AND ELECTRONIC DEVICE 有权
    奥斯卡尔托克

    公开(公告)号：EP2693773A1

    公开(公告)日：2014-02-05

    申请号：EP11862661.3

    申请日：2011-12-05

    Applicant: NEC CASIO Mobile Communications, Ltd.

    Inventor： ONISHI, Yasuharu ,  KURODA, Jun ,  KISHINAMI, Yuichiro ,  MURATA, Yukio ,  SATOU, Shigeo ,  KAWASHIMA, Nobuhiro ,  KOMODA, Motoyoshi ,  UCHIKAWA, Tatsuya

    IPC: H04R17/10 ,  H04R3/00 ,  H04R17/00

    CPC classification number: H01L41/053 ,  B06B1/0644 ,  G10K9/122 ,  H01L41/193 ,  H04R17/10 ,  H04R2217/03

    Abstract: A piezoelectric element (20) is attached to a vibration member (10). A plurality of electrodes (22) are two-dimensionally arranged on one surface of the piezoelectric element (20) so as to be spaced apart from each other. A supporting frame (40) supports an edge of the vibration member (10). A control unit (50) inputs an independent driving signal to each of the plurality of electrodes (22). Thus, a large output can be obtained with a resonance frequency depending on what signal is input to which electrode (22). For example, the piezoelectric element (20) is a resin film that is formed of a high molecular material indicating a piezoelectric property.

    Abstract translation: 压电元件（20）安装在振动件（10）上。 多个电极（22）以压电元件（20）的一个表面二维地排列成彼此间隔开。 支撑框架（40）支撑振动部件（10）的边缘。 控制单元（50）向多个电极（22）中的每一个输入独立的驱动信号。 因此，根据输入到哪个电极（22）的信号，可以以谐振频率获得大的输出。 例如，压电元件（20）是由表示压电特性的高分子材料形成的树脂膜。

    ELECTRONIC APPARATUS
    18.
    发明公开
    ELECTRONIC APPARATUS 审中-公开
    电子设备

    公开(公告)号：EP2661100A1

    公开(公告)日：2013-11-06

    申请号：EP11854153.1

    申请日：2011-11-25

    Applicant: NEC CASIO Mobile Communications, Ltd.

    Inventor： ONISHI, Yasuharu ,  KISHINAMI, Yuichiro ,  SATOU, Shigeo ,  KURODA, Jun ,  MURATA, Yukio ,  KOMODA, Motoyoshi ,  KAWASHIMA, Nobuhiro ,  UCHIKAWA, Tatsuya

    IPC: H04R3/00 ,  H04M1/02 ,  H04M1/21 ,  H04R1/02 ,  H04R17/00

    CPC classification number: H04R1/323 ,  H04M1/0254 ,  H04M1/03 ,  H04R2201/401 ,  H04R2217/03 ,  H04R2499/11

    Abstract: An electronic apparatus (100) includes a first detachable speaker unit (120) including a first speaker having a relatively high directivity, and a second detachable speaker unit (130) including a second speaker having a relatively low directivity. The electronic apparatus (100) further includes a body unit (an electronic apparatus body (110)) provided with a slot (113) in which any one of the first detachable speaker unit (120) and the second detachable speaker unit (130) is detachably installed therein in an alternative way, and a control unit that is provided in the body unit and controls the first and second speakers.

    Abstract translation: 本发明提供一种电子设备（100），其包括具有指向性较高的第一扬声器的第一装卸式扬声器单元（120）和具有指向性较低的第二扬声器的第二装卸式扬声器单元（130）。 电子设备100还包括设置有狭槽113的主体单元（电子设备主体110），其中第一可拆卸扬声器单元120和第二可拆卸扬声器单元130中的任何一个是 以可选方式可拆卸地安装在其中;以及控制单元，其设置在主体单元中并控制第一和第二扬声器。

    DRIVING OF PARAMETRIC LOUDSPEAKERS
    20.
    发明公开
    DRIVING OF PARAMETRIC LOUDSPEAKERS 审中-公开
    控参数扬声器

    公开(公告)号：EP2596645A1

    公开(公告)日：2013-05-29

    申请号：EP11746629.2

    申请日：2011-07-18

    Applicant: Koninklijke Philips Electronics N.V.

    Inventor： LAMB, William, John ,  AARTS, Ronaldus, Maria

    IPC: H04R3/04

    CPC classification number: H04R3/04 ,  H04R2217/03 ,  H04R2400/00

    Abstract: A parametric loudspeaker system comprises a pre-compensator (305) for generating a pre-compensated envelope signal by applying a pre-compensation to the input audio signal where the pre-compensation compensates for distortion of in-air demodulation of the modulated ultrasound signal. A pre-modulator (307) generates a complex base band signal generating a phase signal from the pre-compensated envelope signal using a predetermined function for determining a phase signal from an amplitude signal such that the corresponding complex signal has either suppressed negative or positive frequencies. The complex base band signal is then generated to have an amplitude corresponding to the pre-compensated envelope signal and a phase corresponding to the phase signal. A modulator (309) quadrature modulates the complex base band signal on an ultrasonic quadrature carrier and an output circuit (311) drives the ultrasound transducer (301) from the modulated signal. The invention may allow effective yet low resource pre-compensation for a suppressed or single sideband modulated modulated ultrasound signal.

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