Data synchronization device

Details Data synchronization device Data synchronization device

1994-04-04

1996-06-18

Rogers, Scott A.

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

375293, 375354, 375355, 3701001, H04L 700, H04L 2549

Patent

active

055286364

ABSTRACT:
A data, synchronization device adapted to re-synchronize a multi-level digital signal (IN; OUT) with an output or local clock signal (CLKO). In case of a binary signal, the device includes two counter systems (CA1-CC1, MAJ1, SEL1; CA0-CC0, MAJ0, SEL0) each associated with a logical level of the signal and counting the number of successive 1's or 0's respectively. These counter systems produce a count number including the number of counted bits and their level. The device further includes a decoder (DEC) generating in synchronism with the local clock signal (CLKO) a number of bits which is a function of the count numbers. These generated bits constitute the requested output signal (OUT). The data synchronization device further includes delay module (DEL) for deriving from an input clock signal (CLKI) received with the input signal (IN), three intermediate clock signals (OA-OC) shifted in phase with respect to each other and each controlling one of a set of three counters (CA1-CC1; CA0-CC0) included in each of the counter systems. The latter also each include a majority voting module (MAJ1; MAJ0) reading the numbers of bits counted by the three counters of the corresponding set, comparing these numbers and selecting the subset of at least two counters having counted a same number of bits. The number of bits counted by the majority of the set counters is assumed to be correct and is therefore transferred to the decoder (DEC).

REFERENCES:
patent: 4241311 (1980-12-01), Massey
patent: 4514854 (1985-04-01), Ashida
patent: 5056120 (1991-10-01), Tanioushi et al.
patent: 5361263 (1994-11-01), Urbansky
patent: 5394443 (1995-02-01), Byers et al.

Affiliated with

Also associated with

Rating

Data synchronization device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data synchronization device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data synchronization device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-229319