专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

EP3445094B1 WIFI CONFIGURATION METHODS, WIFI MOBILE TERMINAL, AND WIFI DEVICE 有权
公开(公告)号：EP3445094B1
公开(公告)日：2020-04-08
申请号：EP17795555.6
申请日：2017-05-10
申请人： Huawei Technologies Co., Ltd.
发明人： WANG, Shunbao , XU, Jianfeng , ZHANG, Chen
IPC分类号： H04W48/16 , H04W8/00 , H04W84/12

42. 发明授权

EP2671323B1 METHOD AND APPARATUS FOR PROVIDING SIGNAL PROCESSING COEFFICIENTS 有权
标题翻译：方法和设备提供信号处理系数
公开(公告)号：EP2671323B1
公开(公告)日：2016-10-05
申请号：EP11857942.4
申请日：2011-02-01
申请人： Huawei Technologies Co., Ltd.
发明人： TALEB, Anisse , XU, Jianfeng , VIRETTE, David
IPC分类号： G10L25/12 , G10L25/06 , H04L29/06 , H03H17/06 , G10L19/06 , G10L19/08
CPC分类号： H04L29/0651 , G10L19/06 , G10L19/08 , G10L25/06 , G10L25/12
摘要： 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.

43. 发明授权

EP2702776B1 PARAMETRIC ENCODER FOR ENCODING A MULTI-CHANNEL AUDIO SIGNAL 有权
标题翻译：参数编码器编码多声道音频信号
公开(公告)号：EP2702776B1
公开(公告)日：2015-09-23
申请号：EP12707055.5
申请日：2012-02-17
申请人： Huawei Technologies Co., Ltd.
发明人： LANG, Yue , VIRETTE, David , XU, Jianfeng
IPC分类号： H04S3/00 , G10L19/00
CPC分类号： G10L19/008 , H04S3/008 , H04S2400/03 , H04S2420/03

44. 发明授权

EP2633520B1 PARAMETRIC ENCODER FOR ENCODING A MULTI-CHANNEL AUDIO SIGNAL 有权
标题翻译：用于编码多通道音频信号的参数编码器
公开(公告)号：EP2633520B1
公开(公告)日：2015-09-02
申请号：EP10859153.8
申请日：2010-11-03
申请人： Huawei Technologies Co., Ltd.
发明人： FALLER, Christof , MIAO, Lei , LANG, Yue , XU, Jianfeng
IPC分类号： G10L19/00 , G10L13/00 , G10L19/008 , G10L19/02
CPC分类号： G10L19/008 , G10L19/0204
摘要： A parametric encoder for encoding a multi-channel audio signal having a first audio signal and a second audio signal is provided. The parametric encoder has a transformer (101) for transforming the first audio signal into frequency domain to obtain a first transformed audio signal and for transforming the second audio signal into frequency domain to obtain a second transformed audio signal, a parameter generator (107) for generating a first encoding parameter from the first transformed audio signal and from the second transformed audio signal at a first frequency and for generating a second encoding parameter from the first transformed audio signal and from the second transformed audio signal at a second frequency, and a parameter combiner (109) for combining the first encoding parameter and the second encoding parameter to obtain a combined encoding parameter.

45. 发明公开

EP2702588A1 METHOD FOR PARAMETRIC SPATIAL AUDIO CODING AND DECODING, PARAMETRIC SPATIAL AUDIO CODER AND PARAMETRIC SPATIAL AUDIO DECODER 有权
标题翻译： METHOD FOR参数空间音频编码和解码，音频编码器参数空间与参数空间音频解码器
公开(公告)号：EP2702588A1
公开(公告)日：2014-03-05
申请号：EP12713147.2
申请日：2012-04-05
申请人： Huawei Technologies Co., Ltd
发明人： VIRETTE, David , LANG, Yue , XU, Jianfeng
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： G10L19/008 , H04S3/00
摘要： A method for parametric spatial audio coding of a multi-channel audio signal comprising a plurality of audio channel signals is provided, the method comprising: calculating at least two different spatial coding parameters for an audio channel signal of the plurality of audio channel signals, wherein the at least two different spatial coding parameters are of at least two different types of spatial coding parameters and are calculated with regard to a reference audio signal, wherein the reference audio signal is another audio channel signal of the plurality of audio channel signals or a downmix audio signal derived from at least two audio channel signals of the plurality of audio channel signals; selecting at least one spatial coding parameter of the at least two different spatial coding parameters associated with the audio channel signal on the basis of the values of the calculated spatial coding parameters; including a quantized representation of the selected spatial coding parameter into a parameter section (1b) of an audio bitstream (1); and setting a parameter type flag in the parameter section (1b) of the audio bitstream (1) indicating the type of the selected spatial coding parameter being included into the audio bitstream (1).

46. 发明公开

EP2664995A1 SIGNAL PROCESSING METHOD AND DEVICE 审中-公开
标题翻译：信号发生变化
公开(公告)号：EP2664995A1
公开(公告)日：2013-11-20
申请号：EP11855360.1
申请日：2011-12-31
申请人： Huawei Technologies Co., Ltd.
发明人： ZHANG, Deming , LI, Haiting , ANISSE, Taleb , XU, Jianfeng
IPC分类号： G06F17/14 , G10L19/00 , G10L21/00
CPC分类号： G06F17/142 , G06F17/141 , G06F17/147 , G10L19/0212 , G10L19/022
摘要： An embodiment of the present invention discloses a data processing method, including: twiddling input data, so as to obtain twiddled data; pre-rotating the twiddled data by using a symmetric rotate factor, where the rotate factor is a ⋅ W 4 ⁢ L 2 ⁢ p + 1 , p = 0,..., L /2-1, and a is a constant; performing a Fast Fourier (Fast Fourier Transform, FFT) transform of L/2 point on the pre-rotated data, where L is the length of the input data; post-rotating the data that has undergone the FFT transform by using a symmetric rotate factor, where the rotate factor is b ⋅ W 4 ⁢ L 2 ⁢ q + 1 , q = 0,..., L /2 -1, and b is a constant; and obtaining output data.
摘要翻译：本发明的一个实施例公开了一种数据处理方法，包括：对输入数据进行加密，以获得二进制数据; 通过使用对称的旋转因子预先旋转分数数据，其中旋转因数为

47. 发明授权

EP2068306B1 FRAME ERROR CONCEALMENT METHOD AND APPARATUS FOR HIGHBAND SIGNAL 有权
标题翻译：方法和装置RAHMENFEHLERVERBERGUNG高频带信号
公开(公告)号：EP2068306B1
公开(公告)日：2010-10-20
申请号：EP08734223.4
申请日：2008-05-04
申请人： Huawei Technologies Co., Ltd.
发明人： XU, Jianfeng , MIAO, Lei , HU, Chen , ZHANG, Qing , XU, Lijing , LI, Wei , DU, Zhengzhong , YANG, Yi , Qi, Fengyan , ZHAN, Wuzhou , ZHAN, Wuzhou , WANG, Dongqi
IPC分类号： G10L19/00
CPC分类号： G10L19/005 , G10L19/0204

48. 发明授权

EP2091040B1 DECODING METHOD AND DEVICE 有权
标题翻译：解码和设备
公开(公告)号：EP2091040B1
公开(公告)日：2010-04-28
申请号：EP07817361.4
申请日：2007-12-04
申请人： Huawei Technologies Co., Ltd.
发明人： XU, Jianfeng , XU, Lijing , ZHANG, Qing , LI, Wei , SANG, Shenghu , DU, Zhengzhong
IPC分类号： G10L19/00
CPC分类号： G10L19/005
摘要： A decoding method and device are provided. The decoding method includes receiving a data frame sent from an encoding end; determining a spectrum parameter of a current bad frame if any bad frame occurs; and performing a decoding process according to the calculated and determined spectrum parameter of the current bad frame to obtain a decoded data. The determining the spectrum parameter of the current bad frame specifically includes: first, determining the number of continuous bad frames that occur currently, a spectrum parameter of a good frame before the current bad frame, and a constant mean value of a spectrum parameter; and then, adaptively shifting the spectrum parameter of the good frame towards the constant mean value of the spectrum parameter according to the number of the continuous bad frames to calculate and obtain spectrum parameter information of the current bad frame. When the continuous bad frames occur, the relevance between the spectrum parameter of the nearest good frame and the spectrum parameter of the current bad frame is gradually reduced, so that more accurate spectrum parameter of the current bad frame can be obtained, thereby obtaining a better speech quality under a same code rate and a same frame error rate.

49. 发明公开

EP2096629A1 A CLASSING METHOD AND DEVICE FOR SOUND SIGNAL 有权
标题翻译： VERFAHREN UNDGERÄTZUR KLASSIFIZIERUNG VON TONSIGNALEN
公开(公告)号：EP2096629A1
公开(公告)日：2009-09-02
申请号：EP07855800.4
申请日：2007-12-26
申请人： Huawei Technologies Co., Ltd.
发明人： LI, Wei , XU, Lijing , ZHANG, Qing , XU, Jianfeng , SANG, Shenghu , DU, Zhengzhong , YAN, Qin , DENG, Haojiang , WANG,Jun
IPC分类号： G10L11/02 , G10L11/06 , G10L15/08 , G10L21/02
CPC分类号： G10L25/78 , G10L19/20
摘要： A method for classifying sound signals includes: receiving sound signals, and determining the update rate of background noise according to spectral distribution parameters of the background noise and the sound signals; and updating the noise parameters according to the update rate, and classifying the sound signals according to sub-band energy parameters and updated noise parameters. An apparatus for classifying sound signals includes: a background noise parameter updating module, configured to: determine the update rate of background noise according to spectral distribution parameters of the background noise and the current sound signals; and send the determined update rate; and a PSC module, configured to: receive the update rate from the background noise parameter updating module, update the noise parameters, classify the current sound signals according to the sub-band energy parameters and updated noise parameters, and send the sound signal type determined through classification.
摘要翻译：用于分类声音信号的方法包括：接收声音信号，并根据背景噪声和声音信号的频谱分布参数确定背景噪声的更新速率; 并根据更新速率更新噪声参数，并根据子带能量参数和更新的噪声参数对声音信号进行分类。用于分类声音信号的装置包括：背景噪声参数更新模块，用于根据背景噪声和当前声音信号的频谱分布参数确定背景噪声的更新速率; 并发送确定的更新率; 以及PSC模块，被配置为：从所述背景噪声参数更新模块接收更新速率，更新噪声参数，根据子带能量参数和更新的噪声参数对当前声音信号进行分类，并且发送确定的声音信号类型通过分类。

50. 发明公开

EP2081186A1 A METHOD AND DEVICE FOR ACCOMPLISHING SPEECH DECODING IN A SPEECH DECODER 有权
标题翻译： VERFAHREN UND VORRICHTUNG ZUR ERZIELUNG EINER SPRACHDEKODIERUNG IN EINEM SPRACHDEKODIERER
公开(公告)号：EP2081186A1
公开(公告)日：2009-07-22
申请号：EP08700799.3
申请日：2008-01-18
申请人： Huawei Technologies Co., Ltd.
发明人： XU, Jianfeng , XU, Lijing , ZHANG, Qing , LI, Wei , SANG, Shenghu , DU, Zhengzhong , HU, Chen
IPC分类号： G10L19/00 , H04L1/00 , H03M13/00
CPC分类号： G10L19/005 , G10L19/09 , G10L19/107
摘要： The present invention relates to a decoding method and apparatus. The method includes: receiving data frames from the coder; if any erroneous frame appears, calculating and determining a pitch lag parameter of the erroneous frame; decoding the data frames according to the determined pitch lag parameter of the erroneous frame, and obtaining decoded data. The process of determining the pitch lag parameter of the erroneous frame includes: first, determining the number of continuous erroneous frames and the pitch lag parameter of the previous frame; secondly, adjusting the pitch lag parameter of the previous frame according to the number of the continuous erroneous frames and a preset adjustment policy, and calculating and determining the pitch lag parameter of a current erroneous frame, where the preset adjustment policy is: with change of the number of the continuous erroneous frames, the determined pitch lag parameter of the current erroneous frame fluctuates within a set value range. Therefore, excessive periodicity in the decoding process is overcome, and the decoding accuracy is ensured.
摘要翻译：本发明涉及一种解码方法和装置。该方法包括：从编码器接收数据帧; 如果出现任何错误的帧，则计算和确定错误帧的音调滞后参数; 根据确定的错误帧的音调滞后参数对数据帧进行解码，并获得解码数据。确定错误帧的音调滞后参数的处理包括：首先确定连续错误帧的数量和前一帧的音调滞后参数; 其次，根据连续错误帧的数量和预设的调整策略来调整前一帧的音调滞后参数，并且计算并确定当前错误帧的音调滞后参数，其中预设的调整策略是：随着连续错误帧的数量，所确定的当前错误帧的音调滞后参数在设定值范围内波动。因此，克服了解码处理中的周期性过大，确保了解码精度。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式