公开(公告)号：US10255928B2

公开(公告)日：2019-04-09

申请号：US15810636

申请日：2017-11-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hyun Choo ,  Eun-mi Oh ,  Ho-sang Sung ,  Jung-hoe Kim ,  Mi-young Kim

IPC: G10L21/00 ,  G10L21/038 ,  G10L19/028 ,  G10L19/02

Abstract: A method and apparatus to encoding or decoding an audio signal is provided. In the method and apparatus, a noise-floor level to use in encoding or decoding a high frequency signal is updated according to the degree of a voiced or unvoiced sound included in the signal.

公开(公告)号：US09858933B2

公开(公告)日：2018-01-02

申请号：US15332523

申请日：2016-10-24

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.

公开(公告)号：US09704492B2

公开(公告)日：2017-07-11

申请号：US14589617

申请日：2015-01-05

Applicant: Samsung Electronics Co., Ltd.

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

IPC: G10L19/00 ,  G10L19/005 ,  H03M13/00

CPC classification number: G10L19/005 ,  G10L19/0212 ,  G10L19/022 ,  H03M13/00

Abstract: An error concealment method and apparatus for an audio signal and a decoding method and apparatus for an audio signal using the error concealment method and apparatus. The error concealment method includes selecting one of an error concealment in a frequency domain and an error concealment in a time domain as an error concealment scheme for a current frame based on a predetermined criteria when an error occurs in the current frame, selecting one of a repetition scheme and an interpolation scheme in the frequency domain as the error concealment scheme for the current frame based on a predetermined criteria when the error concealment in the frequency domain is selected, and concealing the error of the current frame using the selected scheme.

公开(公告)号：US09478226B2

公开(公告)日：2016-10-25

申请号：US14879430

申请日：2015-10-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

IPC: H01L21/00 ,  G10L19/028 ,  G10L19/02 ,  G10K11/00

CPC classification number: G10L19/028 ,  G10K11/002 ,  G10L19/0204

Abstract: Provided is a method and apparatus for encoding/decoding an audio signal. Sections which are not used to output noise components near important spectral components and sub-bands which are not used to output noise components, are determined to be encoded or decoded, so that the efficiency of encoding and decoding an audio signal increases, and sound quality can be improved using less bits.

公开(公告)号：US09373331B2

公开(公告)日：2016-06-21

申请号：US13933247

申请日：2013-07-02

Applicant: Samsung Electronics Co., Ltd

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

IPC: G10L19/00 ,  G10L19/005 ,  H03M13/00

CPC classification number: G10L19/005 ,  G10L19/0212 ,  G10L19/022 ,  H03M13/00

Abstract: An error concealment method and apparatus for an audio signal and a decoding method and apparatus for an audio signal using the error concealment method and apparatus. The error concealment method includes selecting one of an error concealment in a frequency domain and an error concealment in a time domain as an error concealment scheme for a current frame based on a predetermined criteria when an error occurs in the current frame, selecting one of a repetition scheme and an interpolation scheme in the frequency domain as the error concealment scheme for the current frame based on a predetermined criteria when the error concealment in the frequency domain is selected, and concealing the error of the current frame using the selected scheme.

Abstract translation: 一种用于音频信号的错误隐藏方法和装置，以及使用错误隐藏方法和装置的用于音频信号的解码方法和装置。 错误隐藏方法包括：当在当前帧中发生错误时，基于预定标准，选择频域中的错误隐藏和时域中的错误隐藏中的一个作为当前帧的错误隐藏方案，选择 重复方案和在频域中的内插方案作为当前帧的错误隐藏方案，当选择频域中的错误隐藏时，基于预定标准，并且使用所选择的方案来隐藏当前帧的错误。

公开(公告)号：US09159332B2

公开(公告)日：2015-10-13

申请号：US14691976

申请日：2015-04-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eun-mi Oh ,  Anton Porov ,  Jung-hoe Kim

IPC: H04B15/00 ,  G10L19/028 ,  G10K11/00

CPC classification number: G10L19/028 ,  G10K11/002 ,  G10L19/0204

Abstract: Provided is a method and apparatus for encoding/decoding an audio signal. Sections which are not used to output noise components near important spectral components and sub-bands which are not used to output noise components, are determined to be encoded or decoded, so that the efficiency of encoding and decoding an audio signal increases, and sound quality can be improved using less bits.

Abstract translation: 提供了一种用于对音频信号进行编码/解码的方法和装置。 不用于输出不用于输出噪声分量的重要频谱分量和子频带附近的噪声分量的部分被确定为编码或解码，使得音频信号的编码和解码效率提高，声音质量 可以使用较少的位来改进。