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    • 7. 发明申请
    • DEVICES AND METHODS FOR ENHANCING THE FREQUENCY OUTPUT OF A PORTABLE AUDIO DEVICE
    • 用于增强便携式音频设备的频率输出的装置和方法
    • WO2009085796A3
    • 2009-12-03
    • PCT/US2008087102
    • 2008-12-17
    • MOTOROLA INCCHEN SHAOHAICLARK JOEL ASTEUER PAUL RZUREK ROBERT AADY ROGER WDAVIS GILES
    • CHEN SHAOHAICLARK JOEL ASTEUER PAUL RZUREK ROBERT AADY ROGER WDAVIS GILES
    • H04R1/02H04M1/12
    • H04R1/2857H04R2205/021
    • Disclosed are passive acoustic structures, portable audio devices configured for use with the passive acoustic structures and methods for enhancing the frequency output of a speaker of a portable device configured for use with a disclosed passive acoustic structure. The disclosed portable audio device may include an opening proximal a speaker cavity of the device, a shutter or door to open and close the opening so that the device interoperates with a docking station of a passive acoustic structure including a labyrinth or a transmission line system that may increase the frequency range of the system. For an end user to experience the music and multimedia features of a portable audio device, and in particular a mobile communication device, the above-described passive acoustic structure may provide a bass enhancement for the typically small loudspeaker of a portable audio device with no additional loudspeaker and therefore no additional circuitry.
    • 公开了被动声学结构,被配置为与无源声学结构一起使用的便携式音频设备和用于增强被配置为与公开的被动声学结构一起使用的便携式设备的扬声器的频率输出的方法。 所公开的便携式音频设备可以包括靠近设备的扬声器腔的开口,用于打开和关闭开口的快门或门,使得设备与包括迷宫式或无线传输线系统的无源声学结构的对接站互操作, 可能会增加系统的频率范围。 为了使终端用户体验便携式音频设备,特别是移动通信设备的音乐和多媒体特征,上述无源声学结构可以为便携式音频设备的典型的小型扬声器提供低音增强,而无需额外的 扬声器,因此没有附加电路。