超前进位随机脉冲计数器的研究

利用随机脉冲尾注差原理，导出了二进制两路尾数求差的计算法。在不增加门速度的前提下，从根本上解决了随机脉冲因交叠所产生的计数错误。另外，在设计集成电路组件时，内部增设超前进位专用加法器电路，从而保证该组件经多级串联后整体电路仍能实现快速计数功能。集成电路运行实验表明，设计原理及运行性能完全满足设计要求，并可填补集成电路对随机脉冲求差的空缺。

Research of Random Pulses Counter with Carry Antecedence

This paper uses the theory of a tail-difference for two random pulses, and presents a tail-difference algorithm for binary number. It ultimately solves counting error that pulses cross to produce. Meanwhile, there is the carry antecedence adder in the IC, IC is guaranteed to achieve the function of rapid counting. The experiment shows that design theory and properties fulfill needs of design. It fills the vacancy of IC two random pulses difference with the carry antecedence.