公开(公告)号：US09847095B2

公开(公告)日：2017-12-19

申请号：US14879949

申请日：2015-10-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang-yong Son ,  Eun-mi Oh ,  Ki-hyun Choo ,  Jung-hoe Kim

IPC: G10L19/02 ,  G10L21/038 ,  G10L21/00 ,  G10L19/08

CPC classification number: G10L21/038 ,  G10L19/0204 ,  G10L19/08 ,  G10L21/00

Abstract: Provided are a method and apparatus for encoding and decoding an audio signal. According to the present application, a signal of a high frequency band above a preset frequency band is adaptively encoded or decoded in the time domain or in the frequency domain by using a signal of a low frequency band below the preset frequency band. As such, the sound quality of a high frequency signal is not deteriorate even when an audio signal is encoded or decoded by using a small number of bits and thus coding efficiency may be maximized.

公开(公告)号：US09626979B2

公开(公告)日：2017-04-18

申请号：US14624911

申请日：2015-02-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Eun-mi Oh

IPC: G10L19/032 ,  G10L19/06 ,  G10L19/04 ,  G10L19/18 ,  G10L19/00

CPC classification number: G10L19/038 ,  G10L19/032 ,  G10L19/04 ,  G10L19/06 ,  G10L19/18 ,  G10L2019/0005

Abstract: A quantizing apparatus is provided that includes a quantization path determiner that determines a path from a first path not using inter-frame prediction and a second path using the inter-frame prediction, as a quantization path of an input signal, based on a criterion before quantization of the input signal; a first quantizer that quantizes the input signal, if the first path is determined as the quantization path of the input signal; and a second quantizer that quantizes the input signal, if the second path is determined as the quantization path of the input signal.

公开(公告)号：US09478220B2

公开(公告)日：2016-10-25

申请号：US14739730

申请日：2015-06-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Ki-hyun Choo ,  Jung-hoe Kim ,  Eun-mi Oh ,  Chang-yong Son ,  Kang-eun Lee

IPC: G10L19/00 ,  G10L21/00 ,  G10L13/00 ,  G10L19/005 ,  G10L19/022

CPC classification number: G10L19/0017 ,  G10L19/005 ,  G10L19/022

Abstract: Provided are a frame error concealment method and apparatus and an error concealment scheme construction method and apparatus. The frame error concealment method includes generating a new signal by synthesizing a plurality of previous signals that are similar to a signal of an error frame and reconstructing the signal of the error frame using the generated signal.

Abstract translation: 提供了帧错误隐藏方法和装置以及错误隐藏方案的构造方法和装置。 帧错误隐藏方法包括通过合成与错误帧的信号相似的多个先前信号并使用所生成的信号重建错误帧的信号来生成新信号。

公开(公告)号：US09159333B2

公开(公告)日：2015-10-13

申请号：US13686015

申请日：2012-11-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chang-yong Son ,  Eun-mi Oh ,  Ki-hyun Choo ,  Jung-hoe Kim

IPC: G10L19/02 ,  G10L21/00 ,  G10L19/08

CPC classification number: G10L21/038 ,  G10L19/0204 ,  G10L19/08 ,  G10L21/00

Abstract: Provided are a method and apparatus for encoding and decoding an audio signal. According to the present application, a signal of a high frequency band above a preset frequency band is adaptively encoded or decoded in the time domain or in the frequency domain by using a signal of a low frequency band below the preset frequency band. As such, the sound quality of a high frequency signal is not deteriorate even when an audio signal is encoded or decoded by using a small number of bits and thus coding efficiency may be maximized.

Abstract translation: 提供了一种用于对音频信号进行编码和解码的方法和装置。 根据本申请，通过使用低于预设频带的低频信号，在时域或频域中自适应地编码或解码高于预置频带的高频带的信号。 因此，即使当通过使用少量位来对音频信号进行编码或解码时，高频信号的声音质量也不会恶化，从而可以使编码效率最大化。