公开(公告)号：US10325604B2

公开(公告)日：2019-06-18

申请号：US15858308

申请日：2017-12-29

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 ,  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：US09812140B2

公开(公告)日：2017-11-07

申请号：US14524306

申请日：2014-10-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kang-eun Lee ,  Do-hyung Kim ,  Chang-yong Son ,  Si-hwa Lee ,  Seok-hwan Jo

IPC: G10L19/00 ,  G10L19/02 ,  G06F9/355 ,  H03H17/02

CPC classification number: G10L19/0204 ,  G06F9/3552 ,  H03H17/0272

Abstract: A method of performing quadrature mirror filter (QMF) synthesis filtering includes recording new samples corresponding to a current time slot at positions of samples to be discarded in a first array that includes modulated QMF sub-band samples. The method further includes extracting samples from the first array to remove aliasing between adjacent sub-bands, determining filter coefficients corresponding to the extracted samples by using modulo operation, and synthesizing a time domain sample where aliasing is removed by using the extracted samples and the filter coefficients.

公开(公告)号：US09761232B2

公开(公告)日：2017-09-12

申请号：US15024266

申请日：2014-09-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seok-hwan Jo ,  Chang-yong Son ,  Do-hyung Kim ,  Kang-eun Lee ,  Si-hwa Lee

IPC: G10L19/008

CPC classification number: G10L19/008

Abstract: A multi-decoding method, according to the present invention, comprises the steps of: receiving a plurality of bitstreams, dividing decoding modules for decoding the plurality of bitstreams according to a data amount of an instruction cache, and cross-decoding the plurality of bitstreams using each of the divided decoding modules.

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：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。

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：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：US10283125B2

公开(公告)日：2019-05-07

申请号：US15617469

申请日：2017-06-08

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 ,  G10L19/02 ,  G10L19/022

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.