Global Patent Index - EP 2183851 A1

EP 2183851 A1 20100512 - ENCODING/DECODING BY SYMBOL PLANES WITH DYNAMIC CALCULATION OF PROBABILITY TABLES

Title (en)

ENCODING/DECODING BY SYMBOL PLANES WITH DYNAMIC CALCULATION OF PROBABILITY TABLES

Title (de)

CODIERUNG/DECODIERUNG DURCH SYMBOLPLÄNE MIT DYNAMISCHER BERECHNUNG VON WAHRSCHEINLICHKEITSTABELLEN

Title (fr)

CODAGE/DECODAGE PAR PLANS DE SYMBOLES, AVEC CALCUL DYNAMIQUE DE TABLES DE PROBABILITES

Publication

EP 2183851 A1 20100512 (FR)

Application

EP 08828177 A 20080725

Priority

  • FR 2008051412 W 20080725
  • FR 0706001 A 20070824

Abstract (en)

[origin: WO2009027606A1] The invention relates to an arithmetic encoding by bit planes (MSB,..., LSB), that comprises using tables of probability to have a 0 or 1 bit for encoding each bit plane. According to the invention, the probability tables are calculated dynamically for each signal frame based on a probability density model (Mod) corresponding to the distribution (H) of the signal (X) on each frame.

IPC 8 full level

H03M 7/30 (2006.01); G10L 19/00 (2013.01); H04N 7/30 (2006.01)

CPC (source: EP US)

G10L 19/00 (2013.01 - EP US); H03M 7/30 (2013.01 - EP US); H03M 7/4006 (2013.01 - EP US); H04N 19/13 (2014.11 - EP US); H04N 19/184 (2014.11 - EP US)

Citation (search report)

See references of WO 2009027606A1

Citation (examination)

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

Designated extension state (EPC)

AL BA MK RS

DOCDB simple family (publication)

WO 2009027606 A1 20090305; CN 101842988 A 20100922; CN 101842988 B 20130814; EP 2183851 A1 20100512; JP 2010537533 A 20101202; JP 4981174 B2 20120718; US 2011116542 A1 20110519

DOCDB simple family (application)

FR 2008051412 W 20080725; CN 200880113593 A 20080725; EP 08828177 A 20080725; JP 2010521456 A 20080725; US 67488508 A 20080725