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    METHOD, MEDIUM, AND SYSTEM SCALABLY ENCODING/DECODING AUDIO/SPEECH
    72.
    发明申请
    METHOD, MEDIUM, AND SYSTEM SCALABLY ENCODING/DECODING AUDIO/SPEECH 有权
    方法，媒体和系统规范编码/解码音频/语音

    公开(公告)号：US20130030820A1

    公开(公告)日：2013-01-31

    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: G10L19/00

    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.

    Abstract translation: 一种方法，媒体和系统可扩展地编码/解码音频/语音。 该方法包括将输入信号分成低于预定频率的低频带信号和高于预定频率的高频带信号，将分割的低频带信号可扩展地编码为核心层和一个或多个 扩展层，然后对编码的核心层和编码的扩展层进行解码，通过使用分割的低频带信号和编码的核心层和经编码的扩展层的解码信号产生误差信号，并对误差信号和高 频带信号转换成信噪比（SNR）增强层和带宽扩展层。

    Audio reconstruction method and device which use machine learning
    73.
    发明授权
    Audio reconstruction method and device which use machine learning 有权

    公开(公告)号：US11545162B2

    公开(公告)日：2023-01-03

    申请号：US16652759

    申请日：2017-10-24

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Ho-sang Sung ,  Jong-hoon Jeong ,  Ki-hyun Choo ,  Eun-mi Oh ,  Jong-youb Ryu

    IPC: G10L19/02 ,  G06N20/00 ,  G06K9/62 ,  G06N3/08 ,  G10L19/00 ,  G06F3/16

    Abstract: Provided are an audio reconstruction method and device for providing improved sound quality by reconstructing a decoding parameter or an audio signal obtained from a bitstream, by using machine learning. The audio reconstruction method includes obtaining a plurality of decoding parameters of a current frame by decoding a bitstream, determining characteristics of a second parameter included in the plurality of decoding parameters and associated with a first parameter, based on the first parameter included in the plurality of decoding parameters, obtaining a reconstructed second parameter by applying a machine learning model to at least one of the plurality of decoding parameters, the second parameter, and the characteristics of the second parameter, and decoding an audio signal, based on the reconstructed second parameter.

    High-band encoding method and device, and high-band decoding method and device
    78.
    发明授权
    High-band encoding method and device, and high-band decoding method and device 有权

    公开(公告)号：US10909993B2

    公开(公告)日：2021-02-02

    申请号：US16592876

    申请日：2019-10-04

    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: 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.

    User terminal device and control method therefor
    79.
    发明授权
    User terminal device and control method therefor 有权

    公开(公告)号：US10560939B2

    公开(公告)日：2020-02-11

    申请号：US15778680

    申请日：2016-11-24

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Kyung-hun Jung ,  Ho-sang Sung ,  Eun-mi Oh ,  Jong-hoon Jeong ,  Ki-hyun Choo

    IPC: H04W72/04 ,  H04W76/10 ,  H04W28/20 ,  H04W88/04

    Abstract: Disclosed are a user terminal device and a control method therefor. The control method for a user terminal device according to the present invention 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.

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