公开(公告)号：US20240087585A1

公开(公告)日：2024-03-14

申请号：US18515612

申请日：2023-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bingyin XIA ,  Jiawei LI ,  Zhe WANG

IPC: G10L19/24 ,  G10L19/16 ,  G10L25/30 ,  H04N19/184 ,  H04N19/91

CPC classification number: G10L19/24 ,  G10L19/167 ,  G10L25/30 ,  H04N19/184 ,  H04N19/91 ,  G10L19/173

Abstract: This application disclose an encoding method and apparatus, a decoding method and apparatus, a device, a storage medium, and a computer program, and relate to the field of encoding and decoding technologies. In this method, a first latent variable is scaled based on a first variable scale factor, to obtain a second latent variable, and a quantity of coding bits of an entropy coding result of the second latent variable meets a preset encoding rate condition. This ensures that a quantity of coding bits of an entropy coding result of a latent variable corresponding to each frame of media data can meet the preset encoding rate condition, that is, the quantity of coding bits of the entropy coding result of the latent variable corresponding to each frame of media data can be basically consistent, instead of dynamically changing.

公开(公告)号：US20240087579A1

公开(公告)日：2024-03-14

申请号：US18511061

申请日：2023-11-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuan GAO ,  Shuai LIU ,  Bin WANG ,  Zhe WANG ,  Tianshu QU ,  Jiahao XU

IPC: G10L19/008 ,  H04S7/00

CPC classification number: G10L19/008 ,  H04S7/30 ,  H04S2420/11

Abstract: This application discloses a three-dimensional audio signal coding method and apparatus, and an encoder, and relates to the multimedia field. The method includes: After determining a first quantity of virtual speakers and a first quantity of vote values based on a current frame of a three-dimensional audio signal, a candidate virtual speaker set, and a voting round quantity, the encoder selects a second quantity of representative virtual speakers for the current frame from the first quantity of virtual speakers based on the first quantity of vote values, and further encodes the current frame based on the second quantity of representative virtual speakers for the current frame to obtain a bitstream. This achieves efficient data compression.

公开(公告)号：US20230327869A1

公开(公告)日：2023-10-12

申请号：US18335731

申请日：2023-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhe WANG ,  Yawen WU ,  Xuezhong CHU

IPC: H04L9/08

CPC classification number: H04L9/0869 ,  H04L9/0819

Abstract: This application provides example authentication methods and apparatuses. One example authentication method is used for a terminal device. The method includes receiving, by the first service unit, a first request from a second device, wherein the first request is used to request a first seed. The first service unit sends the first request to the first authentication unit. The first authentication unit sends a first response to the first service unit, wherein the first response comprises the first seed. The first service unit sends the first response to the second device. The first service unit receives a second seed from the second device. The first service unit sends the second seed to the first authentication unit. The first authentication unit determines a third seed based on a first key and the second seed, wherein the first key is determined based on the first seed.

公开(公告)号：US20230145725A1

公开(公告)日：2023-05-11

申请号：US18154633

申请日：2023-01-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhi WANG ,  Jiance DING ,  Bin WANG ,  Zhe WANG

IPC: G10L19/008 ,  G10L25/21

CPC classification number: G10L19/008 ,  G10L25/21

Abstract: Multi-channel audio signal encoding and decoding methods and apparatuses (1100, 1300) are provided. This can reduce a quantity of bits of multi-channel side information, so that saved bits can be allocated to another functional module of an encoder, to improve quality of a reconstructed audio signal of a decoder side and improve coding quality.

公开(公告)号：US20190164561A1

公开(公告)日：2019-05-30

申请号：US16262562

申请日：2019-01-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhe WANG

IPC: G10L19/22 ,  G10L19/20 ,  G10L19/02 ,  G10L19/04 ,  G10L19/12

Abstract: An audio coding method and a related apparatus are disclosed. The audio coding method includes: estimating reference linear prediction efficiency of a current audio frame; determining an audio coding scheme that matches the reference linear prediction efficiency of the foregoing current audio frame; and performing audio coding on the foregoing current audio frame according to the audio coding scheme that matches the reference linear prediction efficiency of the foregoing current audio frame. The technical solutions provided in embodiments of the present disclosure help reduce overheads of audio coding.

公开(公告)号：US20190156854A1

公开(公告)日：2019-05-23

申请号：US16191914

申请日：2018-11-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhe WANG

IPC: G10L21/0308 ,  G10L25/84 ,  G10L19/22 ,  G10L19/02 ,  G10L15/20 ,  G10L25/78

Abstract: The disclosure provides a method and an apparatus for detecting a voice activity in an input audio signal composed of frames. A noise characteristic of the input signal is determined based on a received frame of the input audio signal. A voice activity detection (VAD) parameter is derived based on the noise characteristic of the input audio signal using an adaptive function. The derived VAD parameter is compared with a threshold value to provide a voice activity detection decision. The input audio signal is processed according to the voice activity detection decision.

公开(公告)号：US20160078873A1

公开(公告)日：2016-03-17

申请号：US14951968

申请日：2015-11-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhe WANG

IPC: G10L19/012 ,  G10L19/16 ,  G10L19/12 ,  G10L19/22

CPC classification number: G10L19/012 ,  G10L19/12 ,  G10L19/167 ,  G10L19/22

Abstract: A signal encoding method and device are disclosed. The method includes, when an encoding manner of a previous frame of a currently-input frame is a continuous encoding manner, predicting a comfort noise that is generated by a decoder according to the currently-input frame when the currently-input frame is encoded into an SID frame, determining an actual silence signal, determining a deviation degree between the comfort noise and the actual silence signal, determining an encoding manner of the currently-input frame according to the deviation degree, and encoding the currently-input frame according to the encoding manner of the currently-input frame. It is determined, according to the deviation degree between the comfort noise and the actual silence signal, that the encoding manner of the currently-input frame is the hangover frame encoding manner or the SID frame encoding manner, which can save communication bandwidth.

Abstract translation: 公开了一种信号编码方法和装置。 该方法包括当当前输入帧的先前帧的编码方式是连续编码方式时，当当前输入的帧被编码时，根据当前输入的帧预测解码器产生的舒适噪声 SID帧，确定实际的静音信号，确定舒适噪声与实际静音信号之间的偏差程度，根据偏差程度确定当前输入帧的编码方式，并按照该帧的当前输入帧进行编码 当前输入帧的编码方式。 根据舒适噪声和实际静音信号之间的偏差程度确定当前输入帧的编码方式是宿醉帧编码方式或SID帧编码方式，可以节省通信带宽。