这就意味着目前存在的面向连接的和电路交换的网络必须升级，以便能够支持分组交换的数据业务。
This means that many of the existing connection-oriented or circuit-switched networks will need to be upgraded to support packet-switched data traffic.
采用TMS320VC33进行数据处理，给出了与DS P相连接的相关检测电路。
TMS320VC33 will be used to process data, and this paper put forwards test circuit associated with DSP.
高清USB输入取代现有的蓝牙电路，并采用一个特制的高速数据连接器取代蓝牙天线。
The high definition USB input replaces the existing Bluetooth circuitry and uses a special high speed data connector where the existing Bluetooth antenna was fitted.
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