公开(公告)号：US10242679B2

公开(公告)日：2019-03-26

申请号：US15500264

申请日：2015-07-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Eun-mi Oh

IPC: G10L19/005 ,  G10L19/012 ,  G10L19/022 ,  G10L19/02 ,  G10L25/21

Abstract: A method and an apparatus for packet loss concealment, and a decoding method and an apparatus employing same are disclosed. A method for time domain packet loss concealment includes checking whether a current frame is either an erased frame or a good frame after the erased frame, when the current frame is either the erased frame or the good frame after the erased frame, obtaining signal characteristics, selecting one of a phase matching tool and a smoothing tool based on a plurality of parameters including the signal characteristics, and performing a packet loss concealment processing on the current frame based on the selected tool.

公开(公告)号：US10171911B2

公开(公告)日：2019-01-01

申请号：US15531916

申请日：2015-11-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yoon-jae Lee ,  Han-ki Kim ,  Sang-yoon Kim ,  Young-suk Song ,  Eun-mi Oh ,  Dong-hyun Lim ,  Ji-ho Chang ,  Jae-youn Cho

IPC: H04R5/04 ,  H04R5/02 ,  H04R3/12

Abstract: Provided is a method of processing an audio signal, the method performed by a device and including dividing the audio signal into a main signal and a background signal; obtaining position information about a main speaker and an auxiliary speaker; mixing the main signal and the background signal, based on the position information; and outputting the mixed main signal and the mixed background signal to the main speaker and the auxiliary speaker, respectively.

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：US09489960B2

公开(公告)日：2016-11-08

申请号：US14879739

申请日：2015-10-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Mi-young Kim ,  Anton Victorovich Porov ,  Eun-mi Oh

IPC: G10L21/00 ,  G10L19/00 ,  G10L19/028 ,  G10L19/032 ,  G10L19/002 ,  G10L19/02

CPC classification number: G10L19/002 ,  G10L19/0204 ,  G10L19/028 ,  G10L19/032

Abstract: A bit allocating method is provided that includes determining the allocated number of bits in decimal point units based on each frequency band so that a Signal-to-Noise Ratio (SNR) of a spectrum existing in a predetermined frequency band is maximized within a range of the allowable number of bits for a given frame; and adjusting the allocated number of bits based on each frequency band.

公开(公告)号：US09478227B2

公开(公告)日：2016-10-25

申请号：US14474220

申请日：2014-09-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hyun Choo ,  Lei Miao ,  Eun-mi Oh

IPC: G10L19/00 ,  G10L19/06 ,  G10L19/02 ,  G10L21/038 ,  G10L19/04 ,  G10L19/07 ,  G10L25/12 ,  G10L25/90

CPC classification number: G10L19/06 ,  G10L19/02 ,  G10L19/0208 ,  G10L19/04 ,  G10L19/07 ,  G10L19/167 ,  G10L21/038 ,  G10L25/12 ,  G10L25/21 ,  G10L25/90

Abstract: Provided are a method and apparatus for encoding and decoding a high frequency signal by using a low frequency signal. The high frequency signal can be encoded by extracting a coefficient by linear predicting a high frequency signal, and encoding the coefficient, generating a signal by using the extracted coefficient and a low frequency signal, and encoding the high frequency signal by calculating a ratio between the high frequency signal and an energy value of the generated signal. Also, the high frequency signal can be decoded by decoding a coefficient, which is extracted by linear predicting a high frequency signal, and a low frequency signal, and generating a signal by using the decoded coefficient and the decoded low frequency signal, and adjusting the generated signal by decoding a ratio between the generated signal and an energy value of the high frequency signal.

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。

公开(公告)号：US08825476B2

公开(公告)日：2014-09-02

申请号：US13858688

申请日：2013-04-08

Applicant: Samsung Electronics Co., Ltd

Inventor： Ki-hyun Choo ,  Lei Miao ,  Eun-mi Oh

IPC: G10L19/12

CPC classification number: G10L19/06 ,  G10L19/02 ,  G10L19/0208 ,  G10L19/04 ,  G10L19/07 ,  G10L19/167 ,  G10L21/038 ,  G10L25/12 ,  G10L25/21 ,  G10L25/90

Abstract: Provided are a method and apparatus for encoding and decoding a high frequency signal by using a low frequency signal. The high frequency signal can be encoded by extracting a coefficient by linear predicting a high frequency signal, and encoding the coefficient, generating a signal by using the extracted coefficient and a low frequency signal, and encoding the high frequency signal by calculating a ratio between the high frequency signal and an energy value of the generated signal. Also, the high frequency signal can be decoded by decoding a coefficient, which is extracted by linear predicting a high frequency signal, and a low frequency signal, and generating a signal by using the decoded coefficient and the decoded low frequency signal, and adjusting the generated signal by decoding a ratio between the generated signal and an energy value of the high frequency signal.

Abstract translation: 提供了一种通过使用低频信号对高频信号进行编码和解码的方法和装置。 高频信号可以通过线性预测高频信号提取系数进行编码，并对该系数进行编码，通过使用提取的系数和低频信号产生信号，并通过计算高频信号之间的比率来对高频信号进行编码 高频信号和产生的信号的能量值。 此外，可以通过对通过线性预测高频信号提取的系数和低频信号进行解码来解码高频信号，并且通过使用解码的系数和解码的低频信号来生成信号，并且调整 通过解码所生成的信号与高频信号的能量值之间的比率来产生信号。