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Registered ENCODING METHOD AND APPARATUS, AND DECONDING METHOD AND APPARATUS

Inventors
Sung Jongmo, Hyun Woo Kim, Bae Hyun Joo, Yang Heesik, Do Young Kim, Lee Byung Sun, Lee Mi Suk
Application No.
13638364 (2011.03.31)
Publication No.
20130030795 (2013.01.31)
Registration No.
9424857 (2016.08.23)
Country
UNITED STATES
Project Code
10MI3100, Study on Acoustic Convergence Codec and its Control Technology for FMC, Lee Byung Sun
Abstract
An encoding method of an encoder is provided. The encoder generates first MDCT coefficients by transforming an input signal, and generates MDCT indices by quantizing the first MDCT coefficients. The encoder generates second MDCT coefficients by dequantizing the MDCT indices, and calculates MDCT residual coefficients using differences between the first MDCT coefficients and the second MDCT coefficients. The encoder generates a residual index by encoding the MDCT residual coefficients, and generates gain indices corresponding to gains from the first MDCT coefficients and the second MDCT coefficients.
KSP Keywords
An encoding, Encoding method, Input signal, Residual coefficients
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Status Patent Country KIPRIS
Registered ENCODING METHOD AND APPARATUS, AND DECONDING METHOD AND APPARATUS KOREA KIPRIS
Registered ENCODING METHOD AND APPARATUS, AND DECONDING METHOD AND APPARATUS JAPAN
Registered ENCODING METHOD AND DEVICE, AND DECODING METHOD AND DEVICE CHINA
Registered ENCODING METHOD AND APPARATUS, AND DECODING METHOD AND APPARATUS CHINA