EP 1062657 A2 20001227 - A SYSTEM AND METHOD FOR PROVIDING SPLIT VECTOR QUANTIZATION DATA CODING
Title (en)
A SYSTEM AND METHOD FOR PROVIDING SPLIT VECTOR QUANTIZATION DATA CODING
Title (de)
SYSTEM UND VERFAHREN ZUM BEREITSTELLEN VON VEKTOR-SEGMENTEN QUANTIFIKATIONS-DATENKODIERUNG
Title (fr)
SYSTEME ET PROCEDE DE CODAGE DE DONNEES PAR QUANTIFICATION DE VECTEURS SEGMENTES
Publication
Application
Priority
- US 9902431 W 19990204
- US 2243798 A 19980212
Abstract (en)
[origin: WO9941736A2] A method and system for providing split vector quantization for use in determining constrained ordered set values, such as line spectrum pair parameters to determine spectral parameters in a data compression system, utilizes multiple codebooks (22a-22c) containing delta coded constrained ordered set values that are normalized to an upper and lower bound. An LSP reconstructor (34) reconstructs received spectral parameters to decode data, such as speech, based on the normalized delta quantization data of line spectrum pair parameters obtained from the split vector reconstruction codebooks (22a-22c). The LSP reconstructor (34) dynamically generates line spectrum pair parameters based on the normalized delta quantization data. In another embodiment, instead of storing the absolute value of the line spectrum pair parameters in segmented codebooks, the combination of at least two absolute value vectors and at least one normalized delta quantization vector is used for spectral quantization.
IPC 1-7
IPC 8 full level
G10L 19/04 (2006.01); G10L 19/06 (2006.01); G10L 19/12 (2006.01); H03M 7/30 (2006.01)
IPC 8 main group level
G10L (2006.01)
CPC (source: EP KR)
G10L 19/038 (2013.01 - KR); G10L 19/07 (2013.01 - EP); H03M 7/3082 (2013.01 - EP); G10L 2019/0004 (2013.01 - EP); G10L 2019/0016 (2013.01 - EP)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
WO 9941736 A2 19990819; WO 9941736 A3 19991021; EP 1062657 A2 20001227; EP 1062657 A4 20041006; JP 2002503834 A 20020205; KR 20010040902 A 20010515
DOCDB simple family (application)
US 9902431 W 19990204; EP 99905742 A 19990204; JP 2000531838 A 19990204; KR 20007008810 A 20000811