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    • 1. 发明授权
    • Notebook computer speakers
    • 笔记本电脑音箱
    • US5668882A
    • 1997-09-16
    • US637948
    • 1996-04-25
    • Scott Nobel HickmanMark A. SmithBrian G. SpreadburyDennis R. Esterberg
    • Scott Nobel HickmanMark A. SmithBrian G. SpreadburyDennis R. Esterberg
    • G06F15/02G06F1/16G06F3/16H04R1/02H04R5/02H04R5/00
    • G06F1/1616G06F1/1688H04R5/02
    • A loudspeaker configuration for a notebook computer includes one or more high frequency "upper" speakers and a low frequency "lower" speaker. The upper speakers are mounted within a display housing and emit sounds over a range including directional sounds having wavelengths less than one-third the upper speaker diameter. The "lower" speaker is mounted within a keyboard housing. The lower speaker is oriented downward onto the desktop or other support surface and displaces a larger volume of air than the upper speaker. Open space between a processor board and a lower housing base surface define an internal speaker-box chamber for the lower speaker. The housing base surface and a support surface for the computer defining an external speaker box for the lower speaker. The internal speaker box and external speaker box define a band pass acoustic filter for sound waves emitted from the second speaker. The sound waves passing through the band pass filter occur to a listener as non-directional sound. The directional high frequency sounds emitted from the upper speaker(s) are enriched with the non-directional sounds of the upper and lower speakers, resulting in improved sound quality.
    • 用于笔记本电脑的扬声器配置包括一个或多个高频“上”扬声器和低频“下”扬声器。 上扬声器安装在显示器外壳内,并在包括波长小于上扬声器直径三分之一的定向声音的范围内发出声音。 “下”扬声器安装在键盘外壳内。 下扬声器向下定向到桌面或其他支撑表面,并且比上扬声器移动更大体积的空气。 处理器板和下壳体基座表面之间的开放空间限定了用于下扬声器的内部扬声器箱室。 壳体基座表面和用于计算机的支撑表面限定用于下部扬声器的外部扬声器箱。 内部扬声器盒和外部扬声器盒定义了用于从第二扬声器发射的声波的带通声音滤波器。 通过带通滤波器的声波作为无方向声音发生在收听者身上。 从上扬声器发出的定向高频声音丰富了上下扬声器的无方向声音,从而提高了音质。