公开(公告)号：US10468035B2

公开(公告)日：2019-11-05

申请号：US15129184

申请日：2015-03-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hyun Choo ,  Eun-mi Oh

IPC: G10L19/00 ,  G10L21/00 ,  G10L21/04 ,  G10L19/002 ,  G10L19/02 ,  G10L21/038

Abstract: Disclosed are a high-band encoding/decoding method and device for bandwidth extension. A high-band encoding method comprising the steps of: generating sub band-specific bit allocation information on the basis of a low-band envelope; determining, on the basis of the sub band-specific bit allocation information, the sub band requiring an envelope update in a high band; and generating, for the determined sub band, refinement data relating to the envelope update. A high-band decoding method comprising the steps of: generating sub band-specific bit allocation information on the basis of a low-band envelope; determining, on the basis of the sub band-specific bit allocation information, the sub band requiring an envelope update in a high band; and decoding, for the determined sub band, refinement data relating to the envelope update, thereby updating the envelope.

公开(公告)号：US10424304B2

公开(公告)日：2019-09-24

申请号：US14687008

申请日：2015-04-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hyun Choo ,  Eun-mi Oh

IPC: G10L19/00 ,  G10L21/00 ,  G10L19/032 ,  G10L19/035 ,  G10L19/02

Abstract: A lossless encoding method is provided that includes determining a lossless encoding mode of a quantization coefficient as one of an infinite-range lossless encoding mode and a finite-range lossless encoding mode; encoding the quantization coefficient in the infinite-range lossless encoding mode in correspondence with a result of the lossless encoding mode determination; and encoding the quantization coefficient in the finite-range lossless encoding mode in correspondence with a result of the lossless encoding mode determination.

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：US20190158833A1

公开(公告)日：2019-05-23

申请号：US16259341

申请日：2019-01-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

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

CPC classification number: H04N19/124 ,  G10L19/0212 ,  G10L19/032 ,  G10L19/035 ,  G10L19/038 ,  G10L19/167 ,  G10L19/24 ,  H03M13/05 ,  H03M13/156 ,  H03M13/31 ,  H04N19/196 ,  H04N19/40

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：US10032459B2

公开(公告)日：2018-07-24

申请号：US15425418

申请日：2017-02-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

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

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：US09942684B2

公开(公告)日：2018-04-10

申请号：US15212831

申请日：2016-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeong-geun Cheon ,  Han-ki Kim ,  Hae-kwang Park ,  Young-suk Song ,  Eun-mi Oh ,  Dong-hyun Lim ,  Jae-youn Cho ,  Joon-ho Son

IPC: H04R5/02 ,  H04R29/00 ,  H04S7/00 ,  H04R27/00 ,  H03G5/00

CPC classification number: H04S7/301 ,  H04R5/02 ,  H04R27/00 ,  H04R29/007 ,  H04R2205/024 ,  H04R2227/003 ,  H04R2227/005 ,  H04R2420/07

Abstract: An audio signal processing method and an audio signal processing apparatus for synchronizing audio based on synchronization error between audio signals.

公开(公告)号：US09860665B2

公开(公告)日：2018-01-02

申请号：US15240416

申请日：2016-08-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dong-hyun Lim ,  Yoon-jae Lee ,  Hae-kwang Park ,  Seung-kwan Yoo ,  Eun-mi Oh ,  Jae-youn Cho

IPC: H04S7/00 ,  H04R3/04 ,  H04R5/02

CPC classification number: H04S7/303 ,  H04R3/04 ,  H04R5/02 ,  H04R2205/024 ,  H04R2420/07 ,  H04R2430/03 ,  H04S7/307 ,  H04S2400/13

Abstract: A method of processing an audio signal is provided. The method includes acquiring location information and performance information of a speaker configured to output an audio signal, selecting a frequency band based on the location information, determining a section to be strengthened from the selected frequency band with respect to the audio signal based on the performance information, and applying a gain value to the determined section.

公开(公告)号：US09818429B2

公开(公告)日：2017-11-14

申请号：US14879853

申请日：2015-10-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

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

CPC classification number: G10L21/038 ,  G10L19/0204 ,  G10L19/028

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：US09773502B2

公开(公告)日：2017-09-26

申请号：US15330779

申请日：2016-11-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G10L19/00 ,  G10L21/00 ,  G10L19/002 ,  G10L19/028 ,  G10L19/032 ,  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：US09508353B2

公开(公告)日：2016-11-29

申请号：US14091637

申请日：2013-11-27

Applicant: SAMSUNG Electronics Co., Ltd.

Inventor： Ki-hyun Choo ,  Eun-mi Oh ,  Jung-hoe Kim ,  Boris Kudryashov ,  Sergey Petrov

IPC: G10L19/008 ,  H04H20/88 ,  H04H20/89 ,  H04S3/00

CPC classification number: G10L19/008 ,  H04H20/88 ,  H04H20/89 ,  H04S3/00 ,  H04S2420/03

Abstract: Provided are a method and apparatus for encoding and decoding a stereo signal or a multi-channel signal. According to the method and apparatus, a stereo signal or a multi-channel signal can be encoded and/or decoded by generating parameters based on a mono signal.

Abstract translation: 提供了一种用于对立体声信号或多声道信号进行编码和解码的方法和装置。 根据该方法和装置，可以通过基于单声道信号产生参数来对立体声信号或多声道信号进行编码和/或解码。