Cascade realizations of two-valued input multiple-valued output functions using decomposition of group functions
Cascade realizations of two-valued input multiple-valued output functions using decomposition of group functions
复制标题
利用群函数分解实现二值输入多值输出函数的级联
DOI:
10.1109/ismvl.2003.1201396
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
Tsutomu Sasao
中科院分区:
文献类型:
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作者:
Tsutomu Sasao
This paper considers a method to realize a two-valued input three-valued output function f:{0, 1}/sup n//spl rarr/{0, 1, 2} by using a cascade of four-input cells. Decomposition of a group function is used to find a canonical form. We show that the Walsh spectrum specifies the canonical form, and the number of non-zero coefficients in the spectrum is proportional to the number of cells in the cascade. Finally, we show a design algorithm for a p-valued function f:{0, 1}/sup n//spl rarr/{0, 1, ..., p-1}. The designed cascades are reversible and conservative.