Global Patent Index - EP 2220799 A2

EP 2220799 A2 2010-08-25 - SYNCHRO-FRAME METHOD BASED ON THE DISCRETE LOGARITHM

Title (en)

SYNCHRO-FRAME METHOD BASED ON THE DISCRETE LOGARITHM

Title (de)

AUF DISKRETEM LOGARITHMUS BASIERENDES SYNCHRO-FRAME-VERFAHREN

Title (fr)

PROCEDE DE SYNCHRO-TRAME A BASE DE LOGARITHME DISCRET

Publication

EP 2220799 A2 (FR)

Application

EP 08856271 A

Priority

  • EP 2008066722 W
  • FR 0708460 A

Abstract (en)

[origin: WO2009071589A2] Method for transmitting data having a first format or format 1 in a datastream complying with a second format, the second format or format 2 consisting of a stream of data symbols incorporating in a regular manner a symbol dedicated to synchronization and placed every r data symbols, the symbol dedicated to synchronization being the current term of a series S(t) satisfying a linear recurrence, the data being split in format 1 into data blocks of fixed size including kr symbols, the data symbols being considered to be elements of a finite field GF(q) where q is the number of elements of the field, the series S(t) satisfies a linear recurrence over GF(q) and admits as characteristic polynomial a primitive polynomial P of degree n over GF(q), and is periodic with a period T=qn-1, a being a root of P in the field GF(qn).

IPC 8 full level (invention and additional information)

H04L 1/00 (2006.01)

CPC (invention and additional information)

H03M 7/02 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DOCDB simple family

FR 2924549 A1 20090605; EP 2220799 A2 20100825; KR 101459176 B1 20141107; KR 20100099251 A 20100910; WO 2009071589 A2 20090611; WO 2009071589 A3 20101028