Patent · US Active

Method and apparatus for providing frame synchronization in a digital communication system that supports multiple modulation formats

US8126089B2 · kind B2 · utility

0Cited by

21References

34Claims

0Family size

Assignee

Alcatel Lucent · FR

Inventors

Raul Benet Ballester · Premià de Mar, ES
Adriaan J. De Lind Van Wijngaarden · New Providence, US
Ralf Dohmen · Nuremberg, DE
Bernd Dotterweich · Hirschaid, DE
Miguel Robledo · Nuremberg, DE
Swen Wunderlich · Dresden, DE

Key dates

Filing date	Sep 30, 2004
Grant date	Feb 28, 2012
Priority date	—
Expiry date	Apr 25, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04J3/0602
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A method and apparatus for frame synchronization in digital communication systems using multiple modulation formats, including the Differential Phase Shift Keying (DPSK), Duobinary Signaling (DBS), and ON/OFF Keying (OOK) modulation formats, perform a search for both a frame alignment sequence (FAS) and the inverted FAS and determine the polarity of the received digital stream.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.