EP 1334486 A2 20030813 - SYSTEM FOR VECTOR QUANTIZATION SEARCH FOR NOISE FEEDBACK BASED CODING OF SPEECH
Title (en)
SYSTEM FOR VECTOR QUANTIZATION SEARCH FOR NOISE FEEDBACK BASED CODING OF SPEECH
Title (de)
SYSTEM ZUR VEKTORQUANTISIERUNGSSUCHE FÜR DIE NOISE-FEEDBACK BASIERTE KODIERUNG VON SPRACHE
Title (fr)
PROCEDES ET SYSTEMES DE CODAGE A BOUCLE DE RETROACTION DE BRUIT POUR METTRE EN OEUVRE UNE RECHERCHE GENERALE ET EFFICACE DE VECTEURS DE CODE DE QUANTIFICATION VECTORIELLE DESTINES A CODER UN SIGNAL VOCAL
Publication
Application
Priority
- US 0142787 W 20011025
- US 24270000 P 20001025
- US 72207700 A 20001127
- US 83213101 A 20010411
- US 83213201 A 20010411
Abstract (en)
[origin: WO0235523A2] Systems for performing general and computationally efficient methods of searching through N Vector Quantization (VQ) codevectors for a preferred one of the N VQ codevectors. The efficient method predicts a speech signal to derive a residual signal, derives a ZERO-INPUT response error vector common to each of the N VQ codevectors, derives N ZERO-STATE response error vectors each based on a corresponding one of the N VQ codevectors, and selects the preferred one of the N VQ codevectors based on the N ZERO-STATE response error vectors and the ZERO-INPUT response error vector.
IPC 1-7
IPC 8 full level
G10L 19/12 (2013.01)
CPC (source: EP)
G10L 19/12 (2013.01); G10L 2019/0013 (2013.01)
Citation (search report)
See references of WO 0235523A2
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 0235523 A2 20020502; WO 0235523 A3 20030417; AU 1466102 A 20020506; EP 1334486 A2 20030813; EP 1334486 B1 20130605
DOCDB simple family (application)
US 0142787 W 20011025; AU 1466102 A 20011025; EP 01983215 A 20011025