Method and apparatus for counting signal transitions

Details Method and apparatus for counting signal transitions Method and apparatus for counting signal transitions

1998-12-02

2000-06-13

Wambach, Margaret R.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Determining machine or apparatus operating time or...

377 26, 377 34, H03K 2100

Patent

active

060758333

ABSTRACT:
A circuit for counting events occurring between two different clock domains includes a gray code counter having at least two stages. The gray code counter is incremented by the event to be counted. Dual rank synchronizer circuit and delay flip/flops are coupled to the counter. The circuit includes a comparison logic circuit fed by outputs from the dual rank synchronizers and the delay flip/flops to produce an output signal having a binary value corresponding to a number of events that occurred between transitions of the second clock.

REFERENCES:
patent: 5555524 (1996-09-01), Castellano
patent: 5894567 (1999-04-01), Dodd et al.
patent: 5978868 (1999-04-01), Maas

Affiliated with

Also associated with

Rating

Method and apparatus for counting signal transitions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for counting signal transitions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for counting signal transitions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2075662