序列信号发生器：

在系统时钟的作用下能够循环产生一组或多组序列信号的时序电路，（循环产生一组序列信号0111010011011010）

序列检测器：

检测一组或多组又二进制码组成的脉冲序列信号，当序列检测器连续收到一组或多组序列信号，如果与预先设置的码11010相同的时候，输出1，否则输出0.

-Sequence of signal generator: the role of the system clock cycle to generate one or more signal timing sequence circuit (cycle to generate a sequence signal 0111010011011010) sequence detector: detecting one or more group was composed of binary code pulses sequence of signal detection when the sequence of one or more groups received a continuous sequence of signals, if the pre-set code 11010 with the same time, output 1, otherwise output 0.