公开(公告)号：US10025343B2

公开(公告)日：2018-07-17

申请号：US13991602

申请日：2011-12-28

申请人： Michael C. Rifani ,  Alan B. Kyker ,  Alan S. Geist ,  David M. Lee

发明人： Michael C. Rifani ,  Alan B. Kyker ,  Alan S. Geist ,  David M. Lee

IPC分类号： G06F1/12 ,  G06F13/42

摘要： Some implementations disclosed herein provide techniques and arrangements for transferring data between asynchronous clock domains. A synchronization signal may be generated by a first of the clock domains, and data may be transferred between the domains in response to the synchronization signal. Clock cycles of the second of the clock domains may be monitored in comparison to the synchronization signal to report the number of second clock domain cycles occurring per occurrence of the synchronization signal. This information may be recorded by testing and validation equipment to facilitate error analyses.

公开(公告)号：US06362672B1

公开(公告)日：2002-03-26

申请号：US09778771

申请日：2001-02-08

申请人： Alan S. Geist

发明人： Alan S. Geist

IPC分类号： H03K512

CPC分类号： H03K5/13 ,  H03K5/082 ,  H03K19/00323 ,  H03K2005/00136

摘要： A method and apparatus for matching rise time and fall time in two differential signals. The apparatus includes a system that includes an scaled summer, a reference voltage generator, a comparator, and a storage device. The scaled summer receives two input signals and generates an instantaneous scaled sum of the two input signals. The reference voltage generator generating a reference voltage. The comparator compares the scaled summer output signal and the reference voltage and generates a comparison signal. The storage device stores the comparison signal. The stored comparison signal is usable to adjust one of the rise time and the fall time of both of the two input signals to match one of the fall time and the rise time of the two input signals.

摘要翻译： 一种用于匹配两个差分信号中的上升时间和下降时间的方法和装置。 该装置包括包括缩放的夏天，参考电压发生器，比较器和存储装置的系统。 缩放的夏季接收两个输入信号，并产生两个输入信号的瞬时缩放和。 参考电压发生器产生参考电压。 比较器比较缩放的夏季输出信号和参考电压，并产生比较信号。 存储装置存储比较信号。 存储的比较信号可用于调整两个输入信号两者的上升时间和下降时间之一，以匹配两个输入信号的下降时间和上升时间之一。

公开(公告)号：US20130254583A1

公开(公告)日：2013-09-26

申请号：US13991602

申请日：2011-12-28

申请人： Michael C. Rifani ,  Alan B. Kyker ,  Alan S. Geist ,  David M. Lee

发明人： Michael C. Rifani ,  Alan B. Kyker ,  Alan S. Geist ,  David M. Lee

IPC分类号： G06F1/12

CPC分类号： G06F1/12 ,  G06F13/4291

摘要： Some implementations disclosed herein provide techniques and arrangements for transferring data between asynchronous clock domains. A synchronization signal may be generated by a first of the clock domains, and data may be transferred between the domains in response to the synchronization signal. Clock cycles of the second of the clock domains may be monitored in comparison to the synchronization signal to report the number of second clock domain cycles occurring per occurrence of the synchronization signal. This information may be recorded by testing and validation equipment to facilitate error analyses.

摘要翻译： 本文公开的一些实施例提供了用于在异步时钟域之间传送数据的技术和布置。 可以由第一时钟域产生同步信号，并且响应于同步信号可以在域之间传送数据。 可以与同步信号相比较来监视第二时钟域的时钟周期，以报告每次出现同步信号时出现的第二时钟域周期数。 该信息可以通过测试和验证设备来记录，以便于错误分析。