公开(公告)号：US10580425B2

公开(公告)日：2020-03-03

申请号：US15688002

申请日：2017-08-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho Sang Sung ,  Eun Mi Oh

IPC: G10L19/07 ,  G10L19/032 ,  G10L19/18 ,  G10L19/06

Abstract: Proposed is a method and apparatus for determining a weighting function for quantizing a linear predictive coding (LPC) coefficient and having a low complexity. The weighting function determination apparatus may convert an LPC coefficient of a mid-subframe of an input signal to one of a immittance spectral frequency (ISF) coefficient and a line spectral frequency (LSF) coefficient, and may determine a weighting function associated with an importance of the ISF coefficient or the LSF coefficient based on the converted ISF coefficient or LSF coefficient.

公开(公告)号：US10418043B2

公开(公告)日：2019-09-17

申请号：US15830501

申请日：2017-12-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki Hyun Choo ,  Eun Mi Oh ,  Ho Sang Sung

IPC: G10L19/00 ,  G10L19/12 ,  G10L19/24 ,  G10L19/038 ,  G10L21/038

Abstract: An apparatus and method for encoding and decoding a signal for high frequency bandwidth extension are provided. An encoding apparatus may down-sample a time domain input signal, may core-encode the down-sampled time domain input signal, may transform the core-encoded time domain input signal to a frequency domain input signal, and may perform bandwidth extension encoding using a basic signal of the frequency domain input signal.

公开(公告)号：US10395665B2

公开(公告)日：2019-08-27

申请号：US15688249

申请日：2017-08-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho Sang Sung ,  Eun Mi Oh

IPC: G10L19/06 ,  G10L19/07 ,  G10L19/032

Abstract: An apparatus determining a weighting function for line prediction coding coefficients quantization converts a linear prediction coding (LPC) coefficient of an input signal into one of a line spectral frequency (LSF) coefficient and an immitance spectral frequency (ISF) coefficient and determines a weighting function associated with one of an importance of the ISF coefficient and importance of the LSF coefficient using one of the converted ISF coefficient and the converted LSF coefficient.

公开(公告)号：US09747913B2

公开(公告)日：2017-08-29

申请号：US14981116

申请日：2015-12-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho Sang Sung ,  Eun Mi Oh

IPC: G10L19/07 ,  G10L19/06 ,  G10L19/032

CPC classification number: G10L19/06 ,  G10L19/032 ,  G10L19/07

Abstract: An apparatus determining a weighting function for line prediction coding coefficients quantization converts a linear prediction coding (LPC) coefficient of an input signal into one of a line spectral frequency (LSF) coefficient and an immitance spectral frequency (ISF) coefficient and determines a weighting function associated with one of an importance of the ISF coefficient and importance of the LSF coefficient using one of the converted ISF coefficient and the converted LSF coefficient.

公开(公告)号：US10535358B2

公开(公告)日：2020-01-14

申请号：US15891741

申请日：2018-02-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ho Sang Sung ,  Ki Hyun Choo ,  Jung Hoe Kim ,  Eun Mi Oh

IPC: G10L19/00 ,  G10L19/12 ,  G10L19/20 ,  G10L25/93

Abstract: An apparatus and a method to encode and decode a speech signal using an encoding mode are provided. An encoding apparatus may select an encoding mode of a frame included in an input speech signal, and encode a frame having an unvoiced mode for an unvoiced speech as the selected encoding mode.

公开(公告)号：US20180102132A1

公开(公告)日：2018-04-12

申请号：US15830501

申请日：2017-12-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki Hyun Choo ,  Eun Mi Oh ,  Ho Sang Sung

IPC: G10L19/12 ,  G10L21/038 ,  G10L19/24 ,  G10L19/038 ,  G10L19/00

CPC classification number: G10L19/12 ,  G10L19/00 ,  G10L19/038 ,  G10L19/24 ,  G10L21/038

Abstract: An apparatus and method for encoding and decoding a signal for high frequency bandwidth extension are provided. An encoding apparatus may down-sample a time domain input signal, may core-encode the down-sampled time domain input signal, may transform the core-encoded time domain input signal to a frequency domain input signal, and may perform bandwidth extension encoding using a basic signal of the frequency domain input signal.

公开(公告)号：US09728196B2

公开(公告)日：2017-08-08

申请号：US15149847

申请日：2016-05-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eun Mi Oh ,  Jung Hoe Kim ,  Ki-hyun Choo ,  Ho Sang Sung ,  Mi Young Kim

IPC: G10L19/00 ,  G10L19/03 ,  G10L19/008 ,  G10L19/16 ,  G10L19/02 ,  G10L19/04 ,  G10L19/20 ,  G10L19/12

CPC classification number: G10L19/03 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/0212 ,  G10L19/04 ,  G10L19/12 ,  G10L19/167 ,  G10L19/20

Abstract: A method and apparatus to encode and decode an audio/speech signal is provided. An inputted audio signal or speech signal may be transformed into at least one of a high frequency resolution signal and a high temporal resolution signal. The signal may be encoded by determining an appropriate resolution, the encoded signal may be decoded, and thus the audio signal, the speech signal, and a mixed signal of the audio signal and the speech signal may be processed.

公开(公告)号：US09928843B2

公开(公告)日：2018-03-27

申请号：US14082449

申请日：2013-11-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho Sang Sung ,  Ki Hyun Choo ,  Jung Hoe Kim ,  Eun Mi Oh

IPC: G10L19/00 ,  G10L19/12 ,  G10L19/20 ,  G10L25/93

CPC classification number: G10L19/12 ,  G10L19/20 ,  G10L25/93

Abstract: An apparatus and a method to encode and decode a speech signal using an encoding mode are provided. An encoding apparatus may select an encoding mode of a frame included in an input speech signal, and encode a frame having an unvoiced mode for an unvoiced speech as the selected encoding mode.

公开(公告)号：US09773507B2

公开(公告)日：2017-09-26

申请号：US15095601

申请日：2016-04-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ho Sang Sung ,  Eun Mi Oh

IPC: G10L19/07 ,  G10L19/08 ,  G10L25/15 ,  G10L19/06

CPC classification number: G10L19/06 ,  G10L19/07

Abstract: Proposed is a method and apparatus for determining a weighting function for quantizing a linear predictive coding (LPC) coefficient and having a low complexity. The weighting function determination apparatus may convert an LPC coefficient of a mid-subframe of an input signal to one of a immittance spectral frequency (ISF) coefficient and a line spectral frequency (LSF) coefficient, and may determine a weighting function associated with an importance of the ISF coefficient or the LSF coefficient based on the converted ISF coefficient or LSF coefficient.

公开(公告)号：US09355646B2

公开(公告)日：2016-05-31

申请号：US14020006

申请日：2013-09-06

Applicant: SAMSUNG Electronics Co., Ltd.

Inventor： Eun Mi Oh ,  Jung Hoe Kim ,  Ki-Hyun Choo ,  Ho Sang Sung ,  Mi Young Kim

IPC: G10L19/00 ,  G10L19/04 ,  G10L19/008 ,  G10L19/02 ,  G10L19/16

CPC classification number: G10L19/03 ,  G10L19/008 ,  G10L19/0204 ,  G10L19/0212 ,  G10L19/04 ,  G10L19/12 ,  G10L19/167 ,  G10L19/20

Abstract: A method and apparatus to encode and decode an audio/speech signal is provided. An inputted audio signal or speech signal may be transformed into at least one of a high frequency resolution signal and a high temporal resolution signal. The signal may be encoded by determining an appropriate resolution, the encoded signal may be decoded, and thus the audio signal, the speech signal, and a mixed signal of the audio signal and the speech signal may be processed.