EP 0614075 B1 20000621 - Method and apparatus for speech coding using Trellis Coded Quantization for Linear Predictive Coding quantization
Title (en)
Method and apparatus for speech coding using Trellis Coded Quantization for Linear Predictive Coding quantization
Title (de)
Verfahren und Vorrichtung zur Sprachkodierung mit Trellis-kodierter Quantisierung für LPC- Quantisierung
Title (fr)
Méthode et appareil de codage de parole utilisant la quantisation codée Trellis pour la quantisation LPC
Publication
Application
Priority
IT MI930406 A 19930303
Abstract (en)
[origin: EP0614075A2] It is disclosed a method and related circuits for speech coding using Trellis Coded Quantization for encoding of Linear Predictive Coding Coefficienty. In particular it uses Trellis Coded Quantization for coding Line spectrum Pairs and Reflection Coefficients parameters. The bit allocation at each quantization step of the Trellis Coded Quantizer is made variable and the quantization error accumulated in quantizing the previous values will be taken in account in the search of the optimum quantization levels of the next values. <IMAGE>
IPC 1-7
IPC 8 full level
G10L 19/06 (2013.01); G10L 19/002 (2013.01)
CPC (source: EP)
G10L 19/06 (2013.01); G10L 19/002 (2013.01)
Citation (examination)
K. SAM SHANMUGAM: "Digital and Analog Communication Systems", JOHN WILEY & SONS, NEW YORK
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0614075 A2 19940907; EP 0614075 A3 19950802; EP 0614075 B1 20000621; DE 69424960 D1 20000727; DE 69424960 T2 20010111; IT 1271959 B 19970610; IT MI930406 A0 19930303; IT MI930406 A1 19940903
DOCDB simple family (application)
EP 94103204 A 19940303; DE 69424960 T 19940303; IT MI930406 A 19930303