EP 1035538 B1 20050727 - Multimode quantizing of the prediction residual in a speech coder
Title (en)
Multimode quantizing of the prediction residual in a speech coder
Title (de)
Multimodale Quantisierung des Prädiktionsfehlers in einem Sprachkodierer
Title (fr)
Quantisation multimode du résidu de prédiction dans un codeur de parole
Publication
Application
Priority
- US 12411299 P 19990312
- US 12408999 P 19990312
Abstract (en)
[origin: EP1035538A2] Linear predictive system with classification of LP residual Fourier coefficients into two or more overlapping classes, and each class has its own vector quantization codebook(s). And modified use of strong and weak predictors to replace a strong predictor following a weak predictor with a weak predictor to insure attenuation of error propagation as arise from frame erasures. <IMAGE> <IMAGE>
IPC 1-7
IPC 8 full level
G10L 19/04 (2006.01); G10L 19/12 (2006.01); G10L 19/14 (2006.01); G10L 19/18 (2013.01); H03M 7/30 (2006.01); H04B 14/04 (2006.01)
CPC (source: EP)
G10L 19/18 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1035538 A2 20000913; EP 1035538 A3 20030423; EP 1035538 B1 20050727; DE 60021455 D1 20050901; DE 60021455 T2 20060524; JP 2000305597 A 20001102
DOCDB simple family (application)
EP 00200874 A 20000313; DE 60021455 T 20000313; JP 2000067301 A 20000310