Global Patent Index - EP 1709743 A1

EP 1709743 A1 20061011 - DIMENSIONAL VECTOR AND VARIABLE RESOLUTION QUANTISATION

Title (en)

DIMENSIONAL VECTOR AND VARIABLE RESOLUTION QUANTISATION

Title (de)

VEKTORQUANTIFIZIERUNG MIT VARIABLER AUFLÖSUNG UND VARIABLER DIMENSION

Title (fr)

QUANTIFICATION VECTORIELLE EN DIMENSION ET RESOLUTION VARIABLES

Publication

EP 1709743 A1 20061011 (FR)

Application

EP 04706703 A 20040130

Priority

FR 2004000219 W 20040130

Abstract (en)

[origin: WO2005083889A1] The invention relates to compression coding and/ or decoding of digital signals, in particular by vector variable-rate quantisation defining a variable resolution. For this purpose an impulsion dictionary comprises: for a given dimension, increasing resolution dictionaries imbricated into each other and, for a given dimension, a union of: a totality (D'i<N>) of code-vectors produced, by inserting elements taken in a final set (A) into smaller dimension code-vectors according to a final set of predetermined insertion rules (F1) and a second totality of code-vectors (Y') which are not obtainable by insertion into the smaller dimension code vectors according to said set of the insertion rules.

IPC 8 full level

H03M 7/30 (2006.01); G10L 19/08 (2006.01); G10L 19/097 (2013.01)

CPC (source: EP KR US)

H03M 7/30 (2013.01 - KR); H03M 7/3082 (2013.01 - EP US); H03M 7/3088 (2013.01 - EP US); G10L 19/097 (2013.01 - EP US)

Citation (search report)

See references of WO 2005083889A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005083889 A1 20050909; CN 1906855 A 20070131; CN 1906855 B 20140402; EP 1709743 A1 20061011; JP 2007523530 A 20070816; JP 4579930 B2 20101110; KR 101190875 B1 20121015; KR 20060129417 A 20061215; US 2007162236 A1 20070712; US 7680670 B2 20100316

DOCDB simple family (application)

FR 2004000219 W 20040130; CN 200480041141 A 20040130; EP 04706703 A 20040130; JP 2006550218 A 20040130; KR 20067017487 A 20040130; US 58790704 A 20040130