本文给出了有限域上多项式的友矩阵的某些性质，及其在计算线性移位寄存器序列的周期和循环码的最小长度的应用。

This paper gives some properties of companion matrix of polynomial over finite field with its application for evaluating period of linear shift register sequence and minimal length of cyclic code.

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基于EPP协议的特点，应用复杂可编程逻辑器件(CPLD)开发了移位寄存器输出接口。

Based on the properties of Enhanced Parallel Port (EPP), an interface of shift register output has been developed using Complex Programmable Logic Device (CPLD).

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本文论述了应用可编程序控制器(plc)的移位寄存器对开关量控制系统的编程方法。

This paper discusses the programming method of applying shift register of programmable controller (PLC) for switching signals control system.

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