从转换函数AND,NOT和OR门只是NOR [英] Converting a function from AND, NOT and OR gates to just NOR

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问题描述

我有一个电路制成AND NOT和OR门,我需要把它转换,这样它只有NOR门,这是不工作很适合我,所以任何提示将是非常美联社preciated。
这是原来的功能转换:

 〜A〜B〜CD +〜一〜公元前〜D +〜AB〜C〜D +〜ABCD + A〜B〜C〜D + A〜BCD + AB〜 CD + ABC〜d个


解决方案

我假设CD意味着c和d。该规则是:


  • 〜A = A,也不是

  • A ^ B =(或非A)NOR(B NOR B)

  • A + B =(A和B)NOR(A和B)

这是,这是纯粹的机械。我会做的第一部分作为一个例子:

 〜A〜B〜CD +〜一〜公元前〜d个
(一NOR A)(B NOR B)(C NOR C)D +(或非A)(B NOR B)C(D NOR D)
(((或非A)NOR(或非A))NOR((B NOR B)NOR(B NOR B)))(C和C)D +(或非A)(B NOR B)C(D NOR D)

I have a circuit made from AND NOT and OR gates, i need to convert it so that it only has NOR gates, this isn't working to well for me so any tips would be much appreciated. This is the original function to convert:

~a~b~cd + ~a~bc~d + ~ab~c~d + ~abcd + a~b~c~d + a~bcd + ab~cd + abc~d

解决方案

I'm assuming cd means c AND d. The rules are:

  • ~a = a NOR a
  • a^b = (a NOR a) NOR (b NOR b)
  • a+b = (a NOR b) NOR (a NOR b)

From that, it's purely mechanical. I'll do the first part as an example:

~a~b~cd + ~a~bc~d
(a NOR a)(b NOR b)(c NOR C)d + (a NOR a)(b NOR b)c(d NOR d)
(((a NOR a) NOR (a NOR a)) NOR ((b NOR b) NOR (b NOR b)))(c NOR C)d + (a NOR a)(b NOR b)c(d NOR d)

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