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    • 8. 发明授权
    • Apparatus and method for sound reproduction
    • 用于声音再现的装置和方法
    • US08879771B2
    • 2014-11-04
    • US12798732
    • 2010-04-08
    • Timothy J. MellowLeo Mikko Johannes KarkkainenZoran RadivojevicKoray Ozcan
    • Timothy J. MellowLeo Mikko Johannes KarkkainenZoran RadivojevicKoray Ozcan
    • H04R1/02G06F1/16H04N5/64H04R25/00
    • H04R1/025G06F1/1605G06F1/1688H04N5/642H04R17/00H04R2499/15
    • In an embodiment an apparatus includes a graphical display panel and a loudspeaker. The panel has a display layer for displaying images and defines a plurality of apertures penetrating through at least the display layer. The loudspeaker includes a diaphragm arranged substantially parallel to the display layer. Sound from the loudspeaker diaphragm is directed outside a host device through the apertures. The speaker may be an electret or a piezo-electric speaker for thinness. There may be apertures on an opposed side of the host device housing to achieve a dipole pattern which is directed and gives acoustic privacy to the user, or a rear acoustic cavity for a monopole pattern which more broadly disperses the sound. One illustrated embodiment is selectable between monopole and dipole. Size and total area of the holes determines acoustic resistance and so a method is described to determine those from physical parameters of the display panel.
    • 在一个实施例中,装置包括图形显示面板和扬声器。 面板具有用于显示图像的显示层,并且限定穿透至少显示层的多个孔。 扬声器包括基本上平行于显示层布置的隔膜。 来自扬声器隔膜的声音通过孔径被引导到主机设备外部。 扬声器可以是驻极体或用于薄的压电扬声器。 在主机设备壳体的相对侧上可以具有孔,以实现被引导的偶极图案,并给用户提供声学隐私,或者更广泛地分散声音的单极图案的后声腔。 一个所示实施例可在单极和偶极之间选择。 孔的尺寸和总面积决定声阻,因此描述了根据显示面板的物理参数确定的方法。