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    • 1. 发明申请
    • USER TERMINAL, METHOD FOR PLAYING AUDIO DATA VIA BLUETOOTH, AND DIGITAL SIGNAL PROCESSOR
    • 用户终端,通过蓝牙播放音频数据的方法和数字信号处理器
    • US20160170705A1
    • 2016-06-16
    • US14926540
    • 2015-10-29
    • Spreadtrum Communications (Shanghai) Co., Ltd.
    • Xiangxin GUShouhua LIUZhi ZHANG
    • G06F3/16H04W4/00G10L19/00
    • G06F3/162G06F3/165G10L19/0208H04W4/80Y02D70/00Y02D70/144
    • A user terminal, a method for playing audio data via Bluetooth, and a digital signal processor are provided. The method includes: a digital signal processor receiving a basic packed data template from an application processor; a SBC module coding audio source data to obtain the audio data packet; the digital signal processor implementing a data packing to the audio data packet based on the basic packed data template, to obtain a packed audio data packet; the digital signal processor implementing dividing and packing to the packed audio data packet to obtain a data packet to be sent; and the digital signal processor sending the data packet requested to be sent to a Bluetooth controller via a PCM interface between the digital signal processor and the Bluetooth controller. Accordingly, the digital signal processor instead of the application processor is employed to achieve audio play, thus reducing power consumption.
    • 提供了用户终端,通过蓝牙播放音频数据的方法和数字信号处理器。 该方法包括:数字信号处理器,从应用处理器接收基本打包数据模板; 编码音频源数据的SBC模块以获得音频数据分组; 所述数字信号处理器基于所述基本打包数据模板实现对所述音频数据分组的数据打包,以获得打包的音频数据分组; 所述数字信号处理器对所述打包的音频数据分组进行分割和打包以获得要发送的数据分组; 并且数字信号处理器通过数字信号处理器和蓝牙控制器之间的PCM接口发送请求发送到蓝牙控制器的数据包。 因此,代替应用处理器的数字信号处理器被用于实现音频播放,从而降低功耗。