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11. 发明授权

US11259304B2 User terminal device and control method therefor 有权
公开(公告)号：US11259304B2
公开(公告)日：2022-02-22
申请号：US16783637
申请日：2020-02-06
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Kyung-hun Jung , Ho-sang Sung , Eun-mi Oh , Jong-hoon Jeong , Ki-hyun Choo
IPC分类号： H04W72/04 , H04W76/10 , H04W28/20 , H04W68/00 , H04L69/24 , H04W4/80 , H04M1/72412 , H04W88/04 , H04M1/60 , H04W88/18
摘要： Disclosed are a user terminal device and a control method therefor. The control method for a user terminal device comprises the steps of: determining state information of a satellite device connected with a user terminal device when a call request message is received from another terminal device; determining communication configuration information with the another terminal device on the basis of the state information of the satellite device, and transmitting a call response message including the communication configuration information to the another terminal device; and receiving audio data from the another terminal device according to a communication scheme corresponding to the communication configuration information. Therefore, in comparison with the prior art, the present invention can reduce a call negotiation time between user terminal devices, and thus reduce a call cost.

12. 发明授权

US10827175B2 Signal encoding method and apparatus and signal decoding method and apparatus 有权
公开(公告)号：US10827175B2
公开(公告)日：2020-11-03
申请号：US16259341
申请日：2019-01-28
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Ho-sang Sung , Ki-hyun Choo , Eun-mi Oh
IPC分类号： G10L19/16 , H04N19/124 , H04N19/196 , H04N19/40 , G10L19/032 , G10L19/24 , H03M13/05 , H03M13/15 , H03M13/31 , G10L19/035 , G10L19/038 , G10L19/02
摘要： 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.

13. 发明授权

US10803877B2 Signal processing methods and apparatuses for enhancing sound quality 有权
公开(公告)号：US10803877B2
公开(公告)日：2020-10-13
申请号：US15757547
申请日：2016-09-05
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Ho-sang Sung , Holly Francois , Ki-hyun Choo , Eun-mi Oh , Kyung-hun Jung , Yaodu Wei
IPC分类号： G10L21/00 , G10L19/028 , G10L19/22 , G10L21/0208 , G10L21/02 , G10L19/26 , G10L21/038 , G10L19/00 , H04M3/22
摘要： Provided are a signal processing method and apparatus for enhancing sound quality. The signal processing method performed by a signal transmitting apparatus includes determining, based on a plurality of parameters, a valid bandwidth so as to encode an input signal; performing pre-processing on the input signal, based on the valid bandwidth; and encoding the pre-processed input signal, based on the valid bandwidth, and the signal processing method performed by a signal receiving apparatus includes decoding a bitstream or a packet received via a transmission channel; determining a valid bandwidth, based on a plurality of parameters used in the decoding; and performing post-processing on a decoded signal, based on the valid bandwidth.

14. 发明授权

US10468033B2 Energy lossless coding method and apparatus, signal coding method and apparatus, energy lossless decoding method and apparatus, and signal decoding method and apparatus 有权
公开(公告)号：US10468033B2
公开(公告)日：2019-11-05
申请号：US15021833
申请日：2014-09-15
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Ki-hyun Choo
IPC分类号： G10L19/00 , G10L19/18 , G10L19/002 , G10L19/22
摘要： The lossless coding method includes selecting one of a first coding method and a second coding method, based on a range in which a quantization index of energy is represented, and coding the quantization index by using the selected coding method. The lossless decoding method includes determining a coding method of a differential quantization index of energy included in a bitstream and decoding the differential quantization index by using one of a first decoding method and a second decoding method based on a range in which a quantization index of energy is represented, in response to the determined coding method.

15. 发明授权

US10283125B2 Error concealment method and apparatus for audio signal and decoding method and apparatus for audio signal using the same 有权
公开(公告)号：US10283125B2
公开(公告)日：2019-05-07
申请号：US15617469
申请日：2017-06-08
申请人： Samsung Electronics Co., Ltd.
发明人： Eun-mi Oh , Ki-hyun Choo , Ho-sang Sung , Chang-yong Son , Jung-hoe Kim , Kang-eun Lee
IPC分类号： G10L19/00 , G10L19/005 , G10L19/02 , G10L19/022
摘要： 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.

16. 发明申请

US20170278520A1 ERROR CONCEALMENT METHOD AND APPARATUS FOR AUDIO SIGNAL AND DECODING METHOD AND APPARATUS FOR AUDIO SIGNAL USING THE SAME 审中-公开
公开(公告)号：US20170278520A1
公开(公告)日：2017-09-28
申请号：US15617469
申请日：2017-06-08
申请人： Samsung Electronics Co., Ltd.
发明人： Eun-mi OH , Ki-hyun Choo , Ho-sang Sung , Chang-yong Son , Jung-hoe Kim , Kang-eun Lee
IPC分类号： G10L19/005 , H03M13/00
CPC分类号： G10L19/005 , G10L19/0212 , G10L19/022 , H03M13/00
摘要： 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.

17. 发明授权

US09418666B2 Method and apparatus for encoding and decoding audio/speech signal 有权
标题翻译：用于对音频/语音信号进行编码和解码的方法和装置
公开(公告)号：US09418666B2
公开(公告)日：2016-08-16
申请号：US14132224
申请日：2013-12-18
申请人： SAMSUNG Electronics Co., Ltd.
发明人： Chang-yong Son , Eun-mi Oh , Jung-hoe Kim , Ho-sang Sung , Kang-eun Lee , Ki-hyun Choo
IPC分类号： G10L19/00 , G10L19/025
CPC分类号： G10L19/00 , G10L19/025
摘要： 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.
摘要翻译：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。

18. 发明授权

US08930188B2 Error concealment method and apparatus for audio signal and decoding method and apparatus for audio signal using the same 有权
公开(公告)号：US08930188B2
公开(公告)日：2015-01-06
申请号：US13933247
申请日：2013-07-02
申请人： Samsung Electronics Co., Ltd
发明人： Eun-mi Oh , Ki-hyun Choo , Ho-sang Sung , Chang-yong Son , Jung-hoe Kim , Kang eun Lee
IPC分类号： G10L19/00
摘要： 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.

19. 发明授权

US11688406B2 High-band encoding method and device, and high-band decoding method and device 有权
公开(公告)号：US11688406B2
公开(公告)日：2023-06-27
申请号：US17138106
申请日：2020-12-30
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Ki-hyun Choo , Eun-mi Oh
IPC分类号： G10L19/002 , G10L21/038 , G10L19/02
CPC分类号： G10L19/002 , G10L19/02 , G10L19/0204 , G10L21/038
摘要： A high-band encoding/decoding method and device for bandwidth extension are provided. 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.

20. 发明授权

US10803878B2 Method and apparatus for high frequency decoding for bandwidth extension 有权
公开(公告)号：US10803878B2
公开(公告)日：2020-10-13
申请号：US16538427
申请日：2019-08-12
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： Ki-hyun Choo , Eun-mi Oh , Seon-ho Hwang
IPC分类号： G10L19/12 , G10L21/038 , G10L19/18 , G10L19/012 , G10L19/16 , G10L19/08
摘要： Disclosed are a method and an apparatus for high frequency decoding for bandwidth extension. The method for high frequency decoding for bandwidth extension comprises the steps of: decoding an excitation class; transforming a decoded low frequency spectrum on the basis of the excitation class; and generating a high frequency excitation spectrum on the basis of the transformed low frequency spectrum. The method and apparatus for high frequency decoding for bandwidth extension according to an embodiment can transform a restored low frequency spectrum and generate a high frequency excitation spectrum, thereby improving the restored sound quality without an excessive increase in complexity.

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