Global Patent Index - EP 3109611 A4

EP 3109611 A4 20170830 - 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

EP 3109611 A4 20170830 (EN)

Application

EP 15749031 A 20150217

Priority

  • US 201461940798 P 20140217
  • KR 2015001668 W 20150217

Abstract (en)

[origin: EP3109611A1] 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)

Citation (search report)

  • [E] EP 3176780 A1 20170607 - SAMSUNG ELECTRONICS CO LTD [KR]
  • [XI] US 2013290003 A1 20131031 - CHOO KI-HYUN [KR]
  • [X] EP 1798724 A1 20070620 - MATSUSHITA ELECTRIC IND CO LTD [JP]
  • [XP] "3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Codec for Enhanced Voice Services (EVS); Detailed Algorithmic Description (Release 12)", 3GPP STANDARD; 3GPP TS 26.445, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. SA WG4, no. V12.0.0, 23 September 2014 (2014-09-23), pages 262 - 400, XP050925847
  • [XP] "6.2 MDCT Coding mode decoding", 10 December 2014 (2014-12-10), XP050913052, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/Specs/archive/26_series/26.445/> [retrieved on 20141210]
  • See also references of WO 2015122752A1

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

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