公开(公告)号：US09711155B2

公开(公告)日：2017-07-18

申请号：US14966043

申请日：2015-12-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Mi-young Kim ,  Eun-mi Oh

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

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

Abstract: A noise filling method is provided that includes detecting a frequency band including a part encoded to 0 from a spectrum obtained by decoding a bitstream; generating a noise component for the detected frequency band; and adjusting energy of the frequency band in which the noise component is generated and filled by using energy of the noise component and energy of the frequency band including the part encoded to 0.

公开(公告)号：US20170061971A1

公开(公告)日：2017-03-02

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: G10L19/002 ,  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.

Abstract translation: 提供了一种比特分配方法，其包括基于每个频带确定分配的小数点单位数，使得存在于预定频带中的频谱的信噪比（SNR）在 给定帧的允许位数; 以及基于每个频带调整所分配的位数。

公开(公告)号：US09570082B2

公开(公告)日：2017-02-14

申请号：US14629839

申请日：2015-02-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jung-hoe Kim ,  Eun-mi Oh

IPC: G10L19/00 ,  G10L21/00 ,  G10L19/008

CPC classification number: G10L19/008 ,  G10L19/00

Abstract: A method, medium, and apparatus encoding and/or decoding a multichannel audio signal. The method includes detecting the type of spatial extension data included in an encoding result of an audio signal, if the spatial extension data is data indicating a core audio object type related to a technique of encoding core audio data, detecting the core audio object type; decoding core audio data by using a decoding technique according to the detected core audio object type, if the spatial extension data is residual coding data, decoding the residual coding data by using the decoding technique according to the core audio object type, and up-mixing the decoded core audio data by using the decoded residual coding data. According to the method, the core audio data and residual coding data may be decoded by using an identical decoding technique, thereby reducing complexity at the decoding end.

Abstract translation: 一种编码和/或解码多声道音频信号的方法，介质和装置。 该方法包括：如果空间扩展数据是指示与核心音频数据的编码技术相关的核心音频对象类型的数据，检测核心音频对象类型，则检测包括在音频信号的编码结果中的空间扩展数据的类型; 通过使用根据所检测的核心音频对象类型的解码技术对核心音频数据进行解码，如果空间扩展数据是残差编码数据，则使用根据核心音频对象类型的解码技术对残差编码数据进行解码，以及上调 通过使用解码的残留编码数据来解码核心音频数据。 根据该方法，可以通过使用相同的解码技术来解码核心音频数据和残留编码数据，从而降低解码端的复杂度。

公开(公告)号：US09418666B2

公开(公告)日：2016-08-16

申请号：US14132224

申请日：2013-12-18

Applicant: SAMSUNG Electronics Co., Ltd.

Inventor： Chang-yong Son ,  Eun-mi Oh ,  Jung-hoe Kim ,  Ho-sang Sung ,  Kang-eun Lee ,  Ki-hyun Choo

IPC: G10L19/00 ,  G10L19/025

CPC classification number: G10L19/00 ,  G10L19/025

Abstract: Provided is a method of encoding an audio/speech signal, the method including determining a variable length of a frame, that is, a processing unit of an input signal in accordance with a position of an attack in the input signal; transforming each frame of the input signal to a frequency domain and dividing the frame into a plurality of sub frequency bands; and, if a signal of a sub frequency band is determined to be encoded in the frequency domain, encoding the signal of the sub frequency band in the frequency domain, and if the signal of the sub frequency band is determined to be encoded in a time domain, inverse transforming the signal of the sub frequency band to the time domain and encoding the inverse transformed signal in the time domain. According to the present invention, the audio/speech signal may be efficiently encoded by controlling time resolution and frequency resolution.

Abstract translation: 提供了一种对音频/语音信号进行编码的方法，该方法包括根据输入信号中的攻击位置来确定帧的可变长度，即输入信号的处理单元; 将所述输入信号的每个帧变换为频域并将所述帧划分为多个子频带; 并且如果确定在频域中编码子频带的信号，则对频域中的子频带的信号进行编码，并且如果确定子频带的信号被编码在一个时间 域，将子频带的信号逆变换到时域，并对时域中的逆变换信号进行编码。 根据本发明，可以通过控制时间分辨率和频率分辨率来有效地编码音频/语音信号。

公开(公告)号：US08930188B2

公开(公告)日：2015-01-06

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

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：US11922960B2

公开(公告)日：2024-03-05

申请号：US17571597

申请日：2022-01-10

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

Inventor： Ho-sang Sung ,  Sang-won Kang ,  Jong-hyun Kim ,  Eun-mi Oh

IPC: G10L19/00 ,  G10L19/022 ,  G10L19/038 ,  G10L19/04 ,  G10L19/06 ,  G10L21/00

CPC classification number: G10L19/038 ,  G10L19/022 ,  G10L19/04 ,  G10L19/06

Abstract: A quantization device includes: a trellis-structured vector quantizer which quantizes a first error vector between an N-dimensional (here, “N” is two or more) subvector and a first predictive vector; and an inter-frame predictor which generates a first predictive vector from the quantized N-dimensional subvector, wherein the inter-frame predictor uses a predictive coefficient comprising an N×N matrix and performs an inter-frame prediction using the quantized N-dimensional subvector of a previous stage.

公开(公告)号：US11616954B2

公开(公告)日：2023-03-28

申请号：US17030466

申请日：2020-09-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: G10L19/032 ,  H04N19/124 ,  H04N19/196 ,  H04N19/40 ,  G10L19/16 ,  G10L19/24 ,  H03M13/05 ,  H03M13/15 ,  H03M13/31 ,  G10L19/035 ,  G10L19/038 ,  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：US11355129B2

公开(公告)日：2022-06-07

申请号：US17111893

申请日：2020-12-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ki-hyun Choo ,  Eun-mi Oh

IPC: G10L19/00 ,  G10L19/032 ,  G10L21/00 ,  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：US11025552B2

公开(公告)日：2021-06-01

申请号：US15757540

申请日：2016-09-05

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  INDUSTRY—UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS

Inventor： Ho-sang Sung ,  Sang-won Kang ,  Jong-hyun Kim ,  Eun-mi Oh ,  Yaxing Li ,  Kyung-hun Jung

IPC: G10L21/04 ,  H04L12/805 ,  H04L12/811 ,  H04L12/815 ,  H04L12/841 ,  H04L12/927

Abstract: A playout delay adjustment method includes: adjusting a playout delay surplus based on a difference value between a first playout delay obtained in a first scheme and a second playout delay obtained in a second scheme and determining an adaptation type of a current frame according to whether a previous frame is an active frame; and when the determined adaptation type is signal-based adaptation, performing time scale modification (TSM) according to an adaptation scheme determined according to a comparison result between the first playout delay and the second playout delay and a comparison result between a target delay and the first playout delay.

公开(公告)号：US20200312339A1

公开(公告)日：2020-10-01

申请号：US16901794

申请日：2020-06-15

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 provided. 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.