First-in-first-out buffer

Details First-in-first-out buffer First-in-first-out buffer

1991-09-16

1992-08-11

Chin, Stephen

Pulse or digital communications

Spread spectrum

Direct sequence

370108, H04L 700

Patent

active

051386372

ABSTRACT:
A first-in-first-out buffer is described for transferring data between two asynchronous clock regimes. The buffer comprises a first register file, for transferring data from the slow to the fast clock regime, and a second register file for transferring data in the opposite direction. The write addresses for the first register file are produced by a counter in the slow clock regime, and converted back to standard binary, and a predetermined offset is added to the result, so as to produce a read address for the first register file. This is also used as the write address for the second register file. The read address for the second register file is produced by adding a predetermined offset to the output of the counter. Thus, the read and write addresses of the two register files are always in a fixed relationship, so that it is not necessary to provide special logic for detecting the buffer full and buffer empty conditions.

REFERENCES:
patent: 4433394 (1984-02-01), Torii et al.
patent: 4839893 (1989-06-01), Smith
patent: 4884286 (1989-11-01), Szcdzepanek et al.
patent: 4891788 (1990-01-01), Kreifels
patent: 4965794 (1990-10-01), Smith
patent: 5020081 (1991-05-01), Allen et al.
patent: 5033064 (1991-07-01), Upp

Affiliated with

Also associated with

Rating

First-in-first-out buffer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with First-in-first-out buffer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and First-in-first-out buffer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-352770