摘要
在分析现有键盘电路的基础上,提出了一种全组合式键盘电路构造方法.这种键盘根据排列组合原理,用n条双向I/O口,最多可以实现2n-1+n(2n-1-1)个按键,数量远大于传统矩阵式键盘电路,而且可根据实际需要用其部分电路构成多种实用键盘电路.
A new method for constructing keyboard circuit, namely, completely combinatorial keyboard circuit, was proposed. The new key board is composed of n bidirectional interfaces based on the principle of permutation and combination. It allows the maximum number of 2n - 1 + n (2n-1 - 1) keys to be implemented on the n bidirectional interfaces, much larger than the conventional matrix key board. Its components can also be utilized to construct key board circuits according to practical requirement.
出处
《西南交通大学学报》
EI
CSCD
北大核心
2004年第6期780-783,共4页
Journal of Southwest Jiaotong University
关键词
组合
键盘
矩阵
单片机
电路
combination
keyboard
matrix
single chip computer
circuit
