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41. 发明公开

EP3249645A1 SIGNAL CODING AND DECODING METHODS AND DEVICES 有权
标题翻译：信号编码和解码方法和设备
公开(公告)号：EP3249645A1
公开(公告)日：2017-11-29
申请号：EP17160983.7
申请日：2012-05-23
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Zexin , MIAO, Lei , QI, Fengyan
IPC分类号： G10L19/002 , G10L19/02 , G10L19/26
摘要： Embodiments of the present invention provide methods and devices for signal coding and decoding. The signal coding method includes: obtaining a frequency domain signal according to an input signal; allocating predetermined bits to the frequency domain signal according to a predetermined allocation rule; adjusting the bit allocation for the frequency domain signal when a highest frequency of the frequency domain signal to which bits are allocated is greater than a predetermined value; and coding the frequency domain signal according to the bit allocation for the frequency domain signal.
摘要翻译：本发明的实施例提供了用于信号编码和解码的方法和设备。信号编码方法包括：根据输入信号获得频域信号; 根据预定分配规则将预定比特分配给频域信号; 当被分配比特的频域信号的最高频率大于预定值时，调整频域信号的比特分配; 以及根据频域信号的比特分配对频域信号进行编码。

42. 发明授权

EP2809009B1 SIGNAL ENCODING AND DECODING METHOD AND DEVICE 有权
标题翻译：信号编码和解码方法及装置
公开(公告)号：EP2809009B1
公开(公告)日：2017-11-29
申请号：EP12873219.5
申请日：2012-05-23
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Zexin , MIAO, Lei , QI, Fengyan
IPC分类号： G10L19/002 , G10L19/02 , G10L19/16 , G10L19/06 , H04L5/06 , H04L27/26 , G10L19/26
CPC分类号： G10L19/167 , G10L19/002 , G10L19/0204 , G10L19/06 , G10L19/26 , H04L5/06 , H04L27/2602
摘要： Embodiments of the present invention provide methods and devices for signal coding and decoding. The signal coding method includes: obtaining a frequency domain signal according to an input signal; allocating predetermined bits to the frequency domain signal according to a predetermined allocation rule; adjusting the bit allocation for the frequency domain signal when a highest frequency of the frequency domain signal to which bits are allocated is greater than a predetermined value; and coding the frequency domain signal according to the bit allocation for the frequency domain signal.

43. 发明授权

EP2795613B1 VERY SHORT PITCH DETECTION AND CODING 有权转让
标题翻译：非常短的音调检测和编码
公开(公告)号：EP2795613B1
公开(公告)日：2017-11-29
申请号：EP12860799.1
申请日：2012-12-21
申请人： Huawei Technologies Co., Ltd.
发明人： GAO, Yang , QI, Fengyan
IPC分类号： G10L19/09 , G10L25/90
CPC分类号： G10L21/003 , G10L19/00 , G10L19/09 , G10L25/06 , G10L25/21 , G10L25/90
摘要： System and method embodiments are provided for very short pitch detection and coding for speech or audio signals. The system and method include detecting whether there is a very short pitch lag in a speech or audio signal that is shorter than a conventional minimum pitch limitation using a combination of time domain and frequency domain pitch detection techniques. The pitch detection techniques include using pitch correlations in time domain and detecting a lack of low frequency energy in the speech or audio signal in frequency domain. The detected very short pitch lag is coded using a pitch range from a predetermined minimum very short pitch limitation that is smaller than the conventional minimum pitch limitation.

44. 发明授权

EP2843659B1 METHOD AND APPARATUS FOR DETECTING CORRECTNESS OF PITCH PERIOD 有权
标题翻译：方法和装置检测正确性成瘾期作者：
公开(公告)号：EP2843659B1
公开(公告)日：2017-04-05
申请号：EP12876916.3
申请日：2012-12-26
申请人： Huawei Technologies Co., Ltd.
发明人： QI, Fengyan , MIAO, Lei
IPC分类号： G10L25/90
CPC分类号： G10L21/013 , G10L19/00 , G10L21/028 , G10L25/00 , G10L25/90

45. 发明授权

EP2407963B1 LINEAR PREDICTION ANALYSIS METHOD, APPARATUS AND SYSTEM 有权
标题翻译：方法，设备和系统进行线性预测
公开(公告)号：EP2407963B1
公开(公告)日：2015-05-13
申请号：EP09841315.6
申请日：2009-03-11
申请人： Huawei Technologies Co., Ltd.
发明人： XU, Jianfeng , MIAO, Lei , QI, Fengyan , ZHANG, Dejun , ZHANG, Qing
IPC分类号： H03M7/30 , G10L19/022 , G10L19/04
CPC分类号： G10L19/022 , G10L19/04

46. 发明公开

EP2809009A1 SIGNAL ENCODING AND DECODING METHOD AND DEVICE 有权
标题翻译：信号编码和解码方法和设备
公开(公告)号：EP2809009A1
公开(公告)日：2014-12-03
申请号：EP12873219.5
申请日：2012-05-23
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Zexin , MIAO, Lei , QI, Fengyan
IPC分类号： H03M7/00
CPC分类号： G10L19/167 , G10L19/002 , G10L19/0204 , G10L19/06 , G10L19/26 , H04L5/06 , H04L27/2602
摘要： Embodiments of the present invention provide methods and devices for signal coding and decoding. The signal coding method includes: obtaining a frequency domain signal according to an input signal; allocating predetermined bits to the frequency domain signal according to a predetermined allocation rule; adjusting the bit allocation for the frequency domain signal when a highest frequency of the frequency domain signal to which bits are allocated is greater than a predetermined value; and coding the frequency domain signal according to the bit allocation for the frequency domain signal.

47. 发明公开

EP2647974A1 AUDIO CODING METHOD AND DEVICE 审中-公开
标题翻译： AUDIOKODIERVERFAHREN UND -VORRICHTUNG
公开(公告)号：EP2647974A1
公开(公告)日：2013-10-09
申请号：EP11863610.9
申请日：2011-12-28
申请人： Huawei Technologies Co., Ltd.
发明人： MIAO, Lei , LIU, Zexin , QI, Fengyan
IPC分类号： G01L19/00
CPC分类号： G10L19/00 , G10L19/002 , G10L19/0204 , G10L19/18
摘要： An audio coding method and apparatus are disclosed, where the method includes: dividing an input audio signal into a low-band signal and a high-band signal; identifying types of the low-band signal and the high-band signal; adaptively allocating a total input rate of the audio signal to the low-band signal and the high-band signal according to different coding modes corresponding to the low-band signal and the high-band signal; and coding the low-band signal through a coding mode corresponding to the low-band signal according to the low-band rate, and coding the high-band signal through a coding mode corresponding to the high-band signal according to the high-band rate. In embodiments of the present application, when the low-band signal and the high-band signal are coded, the coding is not performed according to a rate given in the standard or set before the coding, and coding rates are adaptively adjusted according to different types of the signals, thereby improving overall audio coding performance.
摘要翻译：公开了一种音频编码方法和装置，其中该方法包括：将输入音频信号分成低频带信号和高频带信号; 识别低频带信号和高频带信号的类型; 根据对应于低频带信号和高频带信号的不同编码模式，自适应地将音频信号的总输入速率分配给低频带信号和高频带信号; 并根据低频率通过与低频带信号对应的编码模式对低频带信号进行编码，并根据高频带对应于高频带信号的编码模式对高频带信号进行编码率。在本申请的实施例中，当对低频带信号和高频带信号进行编码时，不根据标准中给出的速率或编码之前设置的速率进行编码，并且根据不同的编码速率进行自适应调整信号的类型，从而提高整体音频编码性能。

48. 发明授权

EP2296144B1 METHOD AND APPARATUS FOR DISTRIBUTING SUB-FRAME 有权
标题翻译：方法和设备分布子帧的
公开(公告)号：EP2296144B1
公开(公告)日：2012-10-03
申请号：EP09836080.3
申请日：2009-12-31
申请人： Huawei Technologies Co., Ltd.
发明人： ZHANG, Dejun , QI, Fengyan , MIAO, Lei , XU, Jianfeng , ZHANG, Qing , LI, Lixiong , MA, Fuwei
IPC分类号： G10L19/04 , G10L19/02 , G10L19/00
CPC分类号： G10L19/04 , G10L19/005 , G10L19/09
摘要： A framing method and apparatus are disclosed to overcome inconsistency of gains between sub-frames caused by simple average framing in the prior art. The method includes: obtaining the Linear Prediction Coding (LPC) order and the pitch of the signal; removing the samples inapplicable to Long-Term Prediction (LTP) synthesis according to the LPC prediction order and the pitch; and splitting the remaining samples of the signal into several sub-frames. The technical solution under the present invention is applicable to the multimedia speech coding field.

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