...并口通信；自定义过滤器；时间精度 [gap=1238]Key words：visual stimulator；brain——computer interface；DirectShow；parallel port communication；self——defining filter；time accuracy ..
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该系统配备了两套与PC机的通信接口，即并口和串口通信。以实验条件和方便为宜选择其一。
This system was equipped two sets of communication interface with PC, the serial and parallel interface, select one of them according to the experiment condition and convenience.
本解调系统还拥有串口、并口等通信接口以及JTAG调试接口。自带lcd，可以动态显示解调后的信号波形。
This demodulation system also has serial port, parallel port, JTAG port, and can display signal wave in LCD.
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