ENCODING METHOD AND DEVICE, AND DECODING METHOD AND DEVICE

WIPO Patent Application WO/2011/122875

A2

Disclosed is an encoding method of an encoder. The encoder generates a first MDCT coefficient by converting an input signal, and generates an MDCT index by quantizing the first MDCT coefficient. The encoder generates a second MDCT coefficient by inversely quantizing the MDCT index, and calculates an MDCT error coefficient by a difference between the first MDCT coefficient and the second MDCT coefficient. Next, said encoder generates an error index by encoding the MDCT error coefficient, and generates a gain index corresponding to a gain of the first MDCT coefficient from the first MDCT coefficient and the second MDCT coefficient.

SUNG, Jongmo (108-702, Banseok Maeul 1-danji977 Jijok-dong, Yuseong-gu, Daejeon 305-772, 305-772, KR)
성종모 (대전 유성구 지족동 977번지 반석마을1단지 108동 702호, 305-772 Daejeon, 305-772, KR)
KIM, Hyun Woo (1-901, Haenim Apt.Dunsan-dong, Seo-gu, Daejeon 302-120, 302-120, KR)

KR2011/002227

October 06, 2011

March 31, 2011

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ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (161Gajeong-dong, Yuseong-gu, Daejeon 305-350, 305-350, KR)
한국전자통신연구원 (대전 유성구 가정동 161, 305-350 Daejeon, 305-350, KR)
SUNG, Jongmo (108-702, Banseok Maeul 1-danji977 Jijok-dong, Yuseong-gu, Daejeon 305-772, 305-772, KR)
성종모 (대전 유성구 지족동 977번지 반석마을1단지 108동 702호, 305-772 Daejeon, 305-772, KR)

G10L19/06; G10L21/02

PANKOREA PATENT AND LAW FIRM (Seolim Bldg, 649-10Yeoksam-dong, Kangnam-gu, Seoul 135-080, 135-080, KR)

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