This paper briefly describes the problematic metastability in the asynchronous designs and presents a regular solution——synchronizer.

本文主要就异步设计中涉及到亚稳态问题,作简要介,出常用解决办法——步器使用。

Two methods of polarization now: spin exchange and metastability exchange are reviewed.

介了目前极化惰性气体常用两种方法——自旋交换光抽运和亚稳态能级交换。