公开(公告)号：US10515646B2

公开(公告)日：2019-12-24

申请号：US15300173

申请日：2015-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung

IPC: G10L19/00 ,  G10L19/032 ,  G10L19/038

Abstract: A quantization apparatus comprises: a first quantization module for performing quantization without an inter-frame prediction; and a second quantization module for performing quantization with an inter-frame prediction, and the first quantization module comprises: a first quantization part for quantizing an input signal; and a third quantization part for quantizing a first quantization error signal, and the second quantization module comprises: a second quantization part for quantizing a prediction error; and a fourth quantization part for quantizing a second quantization error signal, and the first quantization part and the second quantization part comprise a trellis structured vector quantizer.

公开(公告)号：US10224051B2

公开(公告)日：2019-03-05

申请号：US15488103

申请日：2017-04-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Eun-mi Oh

IPC: G10L19/12 ,  G10L19/06 ,  G10L19/18 ,  G10L19/032 ,  G10L19/038 ,  G10L19/04 ,  G10L19/00

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：US10194151B2

公开(公告)日：2019-01-29

申请号：US15500292

申请日：2015-07-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Ki-hyun Choo ,  Eun-mi Oh

IPC: H04N19/124 ,  H04N19/196 ,  H04N19/40 ,  G10L19/032 ,  G10L19/16 ,  H03M13/05 ,  H03M13/15 ,  H03M13/31 ,  G10L19/24 ,  G10L19/02

Abstract: A spectrum coding method includes quantizing spectral data of a current band based on a first quantization scheme, generating a lower bit of the current band using the spectral data and the quantized spectral data, quantizing a sequence of lower bits including the lower bit of the current band based on a second quantization scheme, and generating a bitstream based on a upper bit excluding N bits, where N is 1 or greater, from the quantized spectral data and the quantized sequence of lower bits.

公开(公告)号：US09734837B2

公开(公告)日：2017-08-15

申请号：US13645834

申请日：2012-10-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eun-mi Oh ,  Ho-sang Sung ,  Ki-hyun Choo ,  Kang-eun Lee

IPC: G10L19/24

CPC classification number: G10L19/24

Abstract: A method, medium, and system scalably encoding/decoding audio/speech. The method includes splitting an input signal into a low frequency band signal that is lower than a predetermined frequency and a high frequency band signal that is higher than the predetermined frequency, scalably encoding the split low frequency band signal into a core layer and one or more extension layers and then decoding the encoded core layer and the encoded extension layers, generating an error signal by using the split low frequency band signal and a decoded signal of the encoded core layer and the encoded extension layers, and encoding the error signal and the high frequency band signal into a signal-to-noise ratio (SNR) enhancement layer and a bandwidth extension layer.

公开(公告)号：US09626980B2

公开(公告)日：2017-04-18

申请号：US14624948

申请日：2015-02-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung ,  Eun-mi Oh

IPC: G10L19/032 ,  G10L19/06 ,  G10L19/18 ,  H04N19/159 ,  H04N19/124 ,  G10L19/07 ,  G10L19/22 ,  H04N19/137 ,  H04N19/164

CPC classification number: G10L19/038 ,  G10L19/032 ,  G10L19/06 ,  G10L19/07 ,  G10L19/167 ,  G10L19/18 ,  G10L19/22 ,  H04N19/124 ,  H04N19/137 ,  H04N19/159 ,  H04N19/164

Abstract: A quantizing method is provided that includes quantizing an input signal by selecting one of a first quantization scheme not using an inter-frame prediction and a second quantization scheme using the inter-frame prediction, in consideration of one or more of a prediction mode, a predictive error and a transmission channel state.

公开(公告)号：US09424851B2

公开(公告)日：2016-08-23

申请号：US14272643

申请日：2014-05-08

Applicant: SAMSUNG Electronics Co., Ltd.

Inventor： Ho-sang Sung ,  Kang-eun Lee ,  Jung-hoe Kim ,  Eun-mi Oh

IPC: G06F11/00 ,  H04L1/00 ,  G10L19/005

CPC classification number: G10L19/005 ,  G10L19/07 ,  G10L19/083 ,  G10L19/167 ,  H04L1/0045

Abstract: A frame error concealment method and apparatus and a decoding method and apparatus using the same. The frame error concealment method includes setting a concealment method to conceal an error based on one or more signal characteristics of an error frame having the error and concealing the error using the set concealment method.

Abstract translation: 一种帧错误隐藏方法和装置及其使用方法和装置。 帧错误隐藏方法包括设置隐藏方法以基于具有错误的错误帧的一个或多个信号特征来隐藏错误，并且使用所设置的隐藏方法隐藏错误。

公开(公告)号：US08856012B2

公开(公告)日：2014-10-07

申请号：US14170733

申请日：2014-02-03

Applicant: SAMSUNG Electronics Co., Ltd.

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

IPC: G10L19/00 ,  G10L19/002 ,  G10L19/18

CPC classification number: G10L19/002 ,  G10L19/00 ,  G10L19/18

Abstract: A method of encoding an audio signal, where signals including two or more channel signals are downmixed to a mono signal, the mono signal is divided into a low-frequency signal and a high-frequency signal, the low-frequency signal is encoded through algebraic code excited linear prediction (ACELP) or transform coded excitation (TCX), and the high-frequency signal is encoded using the low-frequency signal. A method of decoding of an audio signal, a low-frequency signal encoded through ACELP or TCX is decoded, a high-frequency signal is decoded using the low-frequency signal, the low-frequency signal and the high-frequency signal are combined to generate a mono signal, and the mono signal is upmixed by decoding spatial parameters regarding signals including two or more channel signals.

Abstract translation: 一种编码音频信号的方法，其中包括两个或更多个信道信号的信号被下混合到单声道信号，单声道信号被分成低频信号和高频信号，低频信号通过代数 代码激励线性预测（ACELP）或变换编码激励（TCX），并且使用低频信号对高频信号进行编码。 解码音频信号的方法，通过ACELP或TCX编码的低频信号进行解码，使用低频信号对低频信号进行解码，将低频信号和高频信号合成为 产生单声道信号，并且单声道信号通过解码关于包括两个或更多个声道信号的信号的空间参数来混合。

公开(公告)号：US08645126B2

公开(公告)日：2014-02-04

申请号：US13850398

申请日：2013-03-26

Applicant: Samsung Electronics Co., Ltd.

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

IPC: G10L19/02

CPC classification number: G10L19/002 ,  G10L19/00 ,  G10L19/18

Abstract: A method of encoding an audio signal, where signals including two or more channel signals are downmixed to a mono signal, the mono signal is divided into a low-frequency signal and a high-frequency signal, the low-frequency signal is encoded through algebraic code excited linear prediction (ACELP) or transform coded excitation (TCX), and the high-frequency signal is encoded using the low-frequency signal. A method of decoding of an audio signal, a low-frequency signal encoded through ACELP or TCX is decoded, a high-frequency signal is decoded using the low-frequency signal, the low-frequency signal and the high-frequency signal are combined to generate a mono signal, and the mono signal is upmixed by decoding spatial parameters regarding signals including two or more channel signals.

公开(公告)号：US11657825B2

公开(公告)日：2023-05-23

申请号：US17217663

申请日：2021-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung

IPC: G10L19/005 ,  G10L19/00 ,  G10L19/22

CPC classification number: G10L19/0017 ,  G10L19/005 ,  G10L19/22

Abstract: A frame error concealment method is provided that includes predicting a parameter by performing a regression analysis on a group basis for a plurality of groups formed from a first plurality of bands forming an error frame and concealing an error in the error frame by using the parameter predicted on a group basis.

公开(公告)号：US10984803B2

公开(公告)日：2021-04-20

申请号：US16673005

申请日：2019-11-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho-sang Sung

IPC: G10L19/005 ,  G10L19/00 ,  G10L19/22

Abstract: A frame error concealment method is provided that includes predicting a parameter by performing a regression analysis on a group basis for a plurality of groups formed from a first plurality of bands forming an error frame and concealing an error in the error frame by using the parameter predicted on a group basis.