《电子技木》1988年第2期发表的“有限自动机的电气实现方法”一文介绍了用触发器与逻辑器件实现自动机的三种方法,即卡诺图法、矩阵法和拼砌法,对于简化多变量时序电路的设计很有参考意义。用矩阵法实现自动机电路时,由编码矩阵和触发矩阵求出的JK触发器J_K和K_K端的逻辑表达式中包含有无关项φ(…),从逻辑设计角度来考虑,可将此无关项舍去,即J_K、K_K表达式可写成 The article “Electrical Implementation of Finite Automata”, Electronic Technology, Issue 2, 1988, presents three methods for implementing automaton with flip-flops and logic devices: Karnaugh Map, Matrix Method, and Tile Method , For simplifying the design of multivariable timing circuit is very useful. When realizing the auto-machine circuit by the matrix method, the logic expression of the JK flip-flop J_K and K_K obtained from the code matrix and the trigger matrix contains an uncorrelated item φ (...). From a logic design point of view, this irrelevant item Abandoned, that J_K, K_K expression can be written as