公开(公告)号：US09236055B2

公开(公告)日：2016-01-12

申请号：US14145432

申请日：2013-12-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yue Lang ,  David Virette ,  Jianfeng Xu

IPC: G10L19/00 ,  G10L21/00 ,  G10L19/008 ,  H04S3/00

Abstract: Methods and devices for a low complex inter-channel difference estimation are provided. A method for the estimation of inter-channel differences (ICDs), comprises applying a transformation from a time domain to a frequency domain to a plurality of audio channel signals, calculating a plurality of ICD values for the ICDs between at least one of the plurality of audio channel signals and a reference audio channel signal over a predetermined frequency range, each ICD value being calculated over a portion of the predetermined frequency range, calculating, for each of the plurality of ICD values, a weighted ICD value by multiplying each of the plurality of ICD values with a corresponding frequency-dependent weighting factor, and calculating an ICD range value for the predetermined frequency range by adding the plurality of weighted ICD values.

公开(公告)号：US20140098963A1

公开(公告)日：2014-04-10

申请号：US14102024

申请日：2013-12-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yue Lang ,  David Virette ,  Jianfeng Xu

IPC: G10L19/008

CPC classification number: G10L19/008 ,  H04S3/008 ,  H04S2400/03 ,  H04S2420/03

Abstract: The invention relates to a parametric audio encoder, comprising a parameter generator, the parameter generator being configured to determine a first set of encoding parameters and reference audio signal values, wherein the reference audio signal is another audio channel signal or a downmix audio signal derived from at least two audio channel signals of the plurality of multi-channel audio signals, to determine a first encoding parameter average based on the first set of encoding parameters of the audio channel signal, to determine a second encoding parameter average based on the first encoding parameter average of the audio channel signal and at least one other first encoding parameter average of the audio channel signal, and to determine the encoding parameter based on the first encoding parameter average of the audio channel signal and the second encoding parameter average of the audio channel signal.

Abstract translation: 本发明涉及一种参数音频编码器，包括参数发生器，参数发生器被配置为确定第一组编码参数和参考音频信号值，其中参考音频信号是另一个音频信道信号或从 多个多声道音频信号的至少两个音频通道信号，以基于音频通道信号的第一组编码参数来确定第一编码参数平均值，以基于第一编码参数确定第二编码参数平均值 音频信道信号的平均值和音频信道信号的至少一个其它第一编码参数平均值，并且基于音频信道信号的第一编码参数平均值和音频信道信号的第二编码参数平均值来确定编码参数 。

公开(公告)号：US11758399B2

公开(公告)日：2023-09-12

申请号：US16616210

申请日：2017-05-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianfeng Xu

IPC: H04L29/06 ,  H04W12/06 ,  H04L9/40 ,  H04W48/14 ,  H04W48/16 ,  H04W12/033 ,  H04W12/50 ,  H04W12/069 ,  H04L29/08 ,  H04W84/12

CPC classification number: H04W12/068 ,  H04L63/083 ,  H04W12/033 ,  H04W12/06 ,  H04W12/069 ,  H04W12/50 ,  H04W48/14 ,  H04W48/16 ,  H04W84/12

Abstract: This application provides a wireless local area network configuration method and a device, and relates to the field of communications technologies, so as to increase a success rate of configuring authentication information of a home wireless local area network for a home device, and improve efficiency in connecting the home device to the home wireless local area network. A specific solution is as follows: A terminal obtains authentication information of a first wireless local area network, configures an SSID of the first wireless local area network as a hidden SSID, and sends at least one first probe request frame, where the first probe request frame carries at least a part of the authentication information of the first wireless local area network.

公开(公告)号：US09800453B2

公开(公告)日：2017-10-24

申请号：US13957078

申请日：2013-08-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Anisse Taleb ,  Jianfeng Xu ,  David Virette

IPC: G10L19/08 ,  G10L19/12 ,  G10L25/06 ,  H04L29/06 ,  G10L25/12 ,  G10L19/06

CPC classification number: H04L29/0651 ,  G10L19/06 ,  G10L19/08 ,  G10L25/06 ,  G10L25/12

Abstract: A method and apparatus for providing signal processing coefficients for processing an input signal at a predetermined signal processing sampling rate, wherein the input signal is received at an input signal sampling rate, the method comprising the steps of computing a correlation or covariance function based on the received input signal at the input signal sampling rate to provide correlation or covariance coefficients at the input signal sampling rate, re-sampling the computed correlation or covariance coefficients having the input signal sampling rate to provide correlation or covariance coefficients at the predetermined signal processing sampling rate, and calculating the signal processing coefficients based on the correlation or covariance coefficients at the predetermined signal processing sampling rate.

公开(公告)号：US09449603B2

公开(公告)日：2016-09-20

申请号：US14498613

申请日：2014-09-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： David Virette ,  Yue Lang ,  Jianfeng Xu

IPC: G10L19/008 ,  G10L19/02

CPC classification number: G10L19/008 ,  G10L19/0204

Abstract: The invention relates to a method for determining an encoding parameter for an audio channel signal of a multi-channel audio signal, the method comprising: determining a frequency transform of the audio channel signal; determining a frequency transform of a reference audio signal; determining inter channel differences for at least each frequency sub-band of a subset of frequency sub-bands, each inter channel difference indicating a phase difference or time difference between a band-limited signal portion of the audio channel signal and a band-limited signal portion of the reference audio signal in the respective frequency sub-band the inter-channel difference is associated to; determining a first average based on positive values of the inter-channel differences and determining a second average based on negative values of the inter-channel differences; and determining the encoding parameter based on the first average and on the second average.

Abstract translation: 本发明涉及一种用于确定多声道音频信号的音频信道信号的编码参数的方法，该方法包括：确定音频信道信号的频率变换; 确定参考音频信号的频率变换; 确定频率子带子集的至少每个频率子带的信道间差异，每个信道间差异指示音频信道信号的带限信号部分与频带限制信号之间的相位差或时间差 相应频率子带中的参考音频信号的部分信道间差异相关联; 基于信道间差异的正值确定第一平均值，并且基于信道间差异的负值确定第二平均值; 以及基于所述第一平均值和所述第二平均值确定所述编码参数。

公开(公告)号：US09299359B2

公开(公告)日：2016-03-29

申请号：US13940494

申请日：2013-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Anisse Taleb ,  David Virette ,  Jianfeng Xu

IPC: G10L21/00 ,  H04M3/00 ,  G10L21/0208 ,  G10L21/02 ,  H04Q3/00 ,  G10L25/69

CPC classification number: G10L21/0208 ,  G10L21/02 ,  G10L25/69 ,  H04Q3/00

Abstract: A voice quality enhancement (VQE) detector for a network element receiving an audio signal from a previous network element of a network, wherein said voice quality enhancement detector is adapted: to perform a voice quality enhancement detection based on the received audio signal, wherein said voice quality enhancement detection comprises detecting that at least one voice quality enhancement function, VQEE comprising of a noise cancellation or an echo cancellation function using a Gaussian Mixture Model was applied to the received audio signal by at least one previous network element of the network; and to control a voice quality enhancement processing of the received audio signal depending on the detection result.

Abstract translation: 一种用于网络元件接收来自网络的先前网络元件的音频信号的语音质量增强（VQE）检测器，其中所述语音质量增强检测器适于：基于所接收的音频信号执行语音质量增强检测，其中所述 语音质量增强检测包括检测至少一个语音质量增强功能，包括噪声消除的VQEE或使用高斯混合模型的回声消除功能被网络的至少一个先前网络元件应用于所接收的音频信号; 并且根据检测结果控制所接收的音频信号的语音质量增强处理。

公开(公告)号：US09275646B2

公开(公告)日：2016-03-01

申请号：US14145432

申请日：2013-12-31

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yue Lang ,  David Virette ,  Jianfeng Xu

IPC: G10L19/00 ,  G10L21/00 ,  G10L19/008 ,  H04S3/00

CPC classification number: G10L19/008 ,  H04S3/008 ,  H04S2400/01 ,  H04S2420/01 ,  H04S2420/03

Abstract: Methods and devices for a low complex inter-channel difference estimation are provided. A method for the estimation of inter-channel differences (ICDs), comprises applying a transformation from a time domain to a frequency domain to a plurality of audio channel signals, calculating a plurality of ICD values for the ICDs between at least one of the plurality of audio channel signals and a reference audio channel signal over a predetermined frequency range, each ICD value being calculated over a portion of the predetermined frequency range, calculating, for each of the plurality of ICD values, a weighted ICD value by multiplying each of the plurality of ICD values with a corresponding frequency-dependent weighting factor, and calculating an ICD range value for the predetermined frequency range by adding the plurality of weighted ICD values.

Abstract translation: 提供了用于低复杂信道间差分估计的方法和装置。 一种用于估计信道间差异（ICD）的方法，包括将从时域到频域的变换应用于多个音频信道信号，在多个音频信道中的至少一个之间计算ICD的多个ICD值 在预定频率范围内的音频通道信号和参考音频通道信号，每个ICD值在预定频率范围的一部分上被计算，对于多个ICD值中的每一个计算加权ICD值， 具有对应的频率相关加权因子的多个ICD值，并通过加上多个加权的ICD值来计算预定频率范围的ICD范围值。

公开(公告)号：US20140257824A1

公开(公告)日：2014-09-11

申请号：US14285976

申请日：2014-05-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Anisse Taleb ,  Jianfeng Xu ,  David Virette

IPC: G10L19/00

CPC classification number: G10L19/00 ,  G10L19/025 ,  G10L19/20

Abstract: An apparatus and a method for encoding an input signal applied to the apparatus comprising: a transient detector adapted to detect whether the applied input signal comprises a transient; at least two transient signal encoders adapted to encode the applied input signal if a transient is detected by the transient detector; and a selection unit adapted to select a transient signal encoder among the transient signal encoders according to at least one predetermined selection criterion.

Abstract translation: 一种用于编码施加到该装置的输入信号的装置和方法，包括：瞬态检测器，适于检测所施加的输入信号是否包括瞬态; 至少两个瞬态信号编码器，其适于在瞬态检测器检测到瞬态时对所施加的输入信号进行编码; 以及选择单元，其适于根据至少一个预定选择标准在所述瞬态信号编码器中选择瞬态信号编码器。

公开(公告)号：US08712763B2

公开(公告)日：2014-04-29

申请号：US13943812

申请日：2013-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dejun Zhang ,  Lei Miao ,  Jianfeng Xu ,  Fengyan Qi ,  Qing Zhang ,  Lixiong Li ,  Fuwei Ma ,  Yang Gao

IPC: G10L21/00

CPC classification number: G10L19/09 ,  G10L19/0017 ,  H04N19/50

Abstract: The present disclosure relates to a method, apparatus, and system for encoding and decoding signals. The encoding method includes: converting a first-domain signal into a second-domain signal; performing Linear Prediction (LP) processing and Long-Term Prediction (LTP) processing for the second-domain signal; obtaining a long-term flag value according to a decision criterion; obtaining a second-domain predictive signal according to the LP processing result and the LTP processing result when the long-term flag value is a first value; obtaining a second-domain predictive signal according to the LP processing result when the long-term flag value is a second value; converting the second-domain predictive signal into a first-domain predictive signal, and calculating a first-domain predictive residual signal; and outputting a bit stream that includes the first-domain predictive residual signal.

Abstract translation: 本公开涉及用于对信号进行编码和解码的方法，装置和系统。 编码方法包括：将第一域信号转换为第二域信号; 对第二域信号执行线性预测（LP）处理和长期预测（LTP）处理; 根据决策标准获得长期标志值; 当长期标志值为第一值时，根据LP处理结果和LTP处理结果获得第二域预测信号; 当长期标志值是第二值时，根据LP处理结果获得第二域预测信号; 将所述第二域预测信号转换为第一域预测信号，以及计算第一域预测残差信号; 并输出包括第一域预测残差信号的比特流。

公开(公告)号：US20210049898A1

公开(公告)日：2021-02-18

申请号：US17044011

申请日：2019-03-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yafei Wang ,  Weiping Zhu ,  Jianfeng Xu

IPC: G08C17/02

Abstract: Embodiments of this application provide a wireless control method and system and an apparatus, and relate to the field of communications technologies, so that when a power switch of a household device is turned off, the household device can be controlled by a controller. A specific solution includes: sending, by a controller, a first control command used to instruct the first device to execute a corresponding event; and receiving, by a wireless router, the first control command, determining, in response to the first control command, that the first device is not connected to a power supply, and sending a power supply connect instruction to an input apparatus, where the power supply connect instruction is used to instruct the input apparatus to connect the first device to the power supply.