EP 3109611 A1 20161228 - SIGNAL ENCODING METHOD AND APPARATUS, AND SIGNAL DECODING METHOD AND APPARATUS
Title (en)
SIGNAL ENCODING METHOD AND APPARATUS, AND SIGNAL DECODING METHOD AND APPARATUS
Title (de)
SIGNALCODIERUNGSVERFAHREN UND -VORRICHTUNG UND SIGNALDECODIERUNGSVERFAHREN UND -VORRICHTUNG
Title (fr)
PROCÉDÉ ET APPAREIL DE CODAGE DE SIGNAL, ET PROCÉDÉ ET APPAREIL DE DÉCODAGE DE SIGNAL
Publication
Application
Priority
- US 201461940798 P 20140217
- KR 2015001668 W 20150217
Abstract (en)
The present invention relates to a method and an apparatus for encoding and decoding spectrum coefficients in the frequency domain. The spectrum encoding method may comprise the steps of: selecting an encoding type on the basis of bit allocation information of respective bands; performing zero encoding with respect to a zero band; and encoding information of selected significant frequency components with respect to respective non-zero bands. The spectrum encoding method enables encoding and decoding of spectrum coefficients which is adaptive to various bit-rates and various sub-band sizes. In addition, a spectrum can be encoded using a TCQ method at a fixed bit rate using a bit-rate control module in a codec that supports multiple rates. Encoding performance of the codec can be maximised by encoding high performance TCQ at a precise target bit rate.
IPC 8 full level
G01L 19/02 (2006.01)
CPC (source: EP KR)
G10L 19/002 (2013.01 - KR); G10L 19/0212 (2013.01 - EP KR); G10L 19/032 (2013.01 - KR); G10L 19/24 (2013.01 - KR); G10L 19/002 (2013.01 - EP); G10L 19/24 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3109611 A1 20161228; EP 3109611 A4 20170830; CN 106233112 A 20161214; CN 106233112 B 20190628; CN 110176241 A 20190827; CN 110176241 B 20231031; JP 2017506771 A 20170309; JP 6633547 B2 20200122; KR 102386738 B1 20220414; KR 102625143 B1 20240115; KR 20160122160 A 20161021; KR 20220051028 A 20220425; KR 20240008413 A 20240118
DOCDB simple family (application)
EP 15749031 A 20150217; CN 201580020096 A 20150217; CN 201910495957 A 20150217; JP 2016569544 A 20150217; KR 20167022489 A 20150217; KR 20227012038 A 20150217; KR 20247000605 A 20150217