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Current content: 159 515 718 patent documents

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154 531 new documents added

1 078 520 documents amended

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EP 1431962 A2 20040623 - Wideband speech coding system and method

Title (en)

Wideband speech coding system and method

Title (de)

Vorrichtung und Verfahren zur Breitbandcodierung von Sprachsignalen

Title (fr)

Dispositif et procédé de codage de parole à large bande

Publication

EP 1431962 A2 20040623 (EN)

Application

EP 04100553 A 20010522

Priority

EP 01000172 A 20010522
US 20615600 P 20000522

Abstract (en)

A speech encoder/decoder for wideband speech with a partitioning of wideband into lowband and highband, and convenient coding of the lowband. The narrowband coding may be an LP-based voiceband coder; and the high band coding may include spectral reversal so it can effectively use the voiceband coder's quantizer. The embedded lowband may be extracted for a lower bit rate decoder. <IMAGE>

IPC 1-7

G10L 21/02; G10L 19/02

IPC 8 full level

G10L 21/038 (2013.01); G10L 19/02 (2013.01); G10L 19/12 (2013.01)

CPC (source: EP)

G10L 21/038 (2013.01); G10L 19/0204 (2013.01); G10L 19/12 (2013.01)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1431962 A2 20040623; EP 1431962 A3 20041201; EP 1431962 B1 20060405

DOCDB simple family (application)

EP 04100553 A 20010522