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    • 7. 发明申请
    • PORTABLE AUDIO PLAYBACK DEVICE WITH BASS ENHANCEMENT
    • 便携式音频播放装置,具有强化功能
    • WO2004010729A3
    • 2004-07-22
    • PCT/IB0302793
    • 2003-07-14
    • SONY ERICSSON MOBILE COMM ABMOORE RICHARD
    • MOORE RICHARD
    • H04R5/02H04B5/00
    • H04R3/14H04R5/04H04R2420/07H04S2400/07
    • Wirelessly linking a portable audio device to an external audio system permits the external audio system to generate audible signals that enhance local playback of audio by the portable device. For example, the portable device wirelessly transmits lower frequency components of an audio signal to a subwoofer system for reproduction of bass frequencies extending below the playback capability of the portable device. In this manner, the external audio system provides bass enhancement for the portable audio device. Wireless transmissions between the portable audio device and the external audio system may be, but are not limited to, optical or radio frequency (RF) transmissions. Where RF signaling is used, the wireless link may be based on wireless network links, such as those supported by Bluetooth and 802.11b standards, or based on, for example, dedicated RF interfaces.
    • 将便携式音频设备无线链接到外部音频系统允许外部音频系统生成可听信号,以增强便携式设备对音频的本地回放。 例如,便携式设备将音频信号的较低频率分量无线传输到超低音扬声器系统,以再现低于便携式设备的回放能力的低音频率。 以这种方式,外部音频系统为便携式音频设备提供低音增强。 便携式音频设备和外部音频系统之间的无线传输可以是但不限于光学或射频(RF)传输。 在使用RF信令的情况下,无线链路可以基于无线网络链路,例如由蓝牙和802.11b标准支持的链路,或基于例如专用RF接口。