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1. 发明授权

US08320265B2 Method and apparatus for obtaining an attenuation factor 有权
标题翻译：用于获得衰减因子的方法和装置
公开(公告)号：US08320265B2
公开(公告)日：2012-11-27
申请号：US12264593
申请日：2008-11-04
申请人： Wuzhou Zhan , Dongqi Wang , Yongfeng Tu , Jing Wang , Qing Zhang , Lei Miao , Jianfeng Xu , Chen Hu , Yi Yang , Zhengzhong Du , Fengyan Qi
发明人： Wuzhou Zhan , Dongqi Wang , Yongfeng Tu , Jing Wang , Qing Zhang , Lei Miao , Jianfeng Xu , Chen Hu , Yi Yang , Zhengzhong Du , Fengyan Qi
IPC分类号： G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26
CPC分类号： G10L19/005 , G10L19/0204 , G10L19/097
摘要： The present invention discloses a method for obtaining an attenuation factor. The method is adapted to process the synthesized signal in packet loss concealment, and includes: obtaining a change trend of a signal; obtaining an attenuation factor, according to the change trend of the signal. The present invention also discloses an apparatus for obtaining an attenuation factor. A self-adaptive attenuation factor is adjusted dynamically by using the latest change trend of a history signal by using the present invention. The smooth transition from the history data to the data last received is realized so that the attenuation speed is kept consistent between the compensated signal and the original signal as much as possible for adapting to the characteristic of various human voices.
摘要翻译：本发明公开了一种获得衰减因子的方法。该方法适用于处理分组丢失隐藏中的合成信号，包括：获得信号的变化趋势; 根据信号的变化趋势获得衰减因子。本发明还公开了一种用于获得衰减因子的装置。通过使用本发明的历史信号的最新变化趋势来动态调整自适应衰减因子。实现从历史数据到最后接收的数据的平滑过渡，使得尽可能地使补偿信号和原始信号之间的衰减速度保持一致，以适应各种人声的特征。

2. 发明授权

US07835912B2 Signal processing method, processing apparatus and voice decoder 有权
标题翻译：信号处理方法，处理装置和语音解码器
公开(公告)号：US07835912B2
公开(公告)日：2010-11-16
申请号：US12539158
申请日：2009-08-11
申请人： Wuzhou Zhan , Dongqi Wang , Yongfeng Tu , Jing Wang , Qing Zhang , Lei Miao , Jianfeng Xu , Chen Hu , Yi Yang , Zhengzhong Du , Fengyan Qi
发明人： Wuzhou Zhan , Dongqi Wang , Yongfeng Tu , Jing Wang , Qing Zhang , Lei Miao , Jianfeng Xu , Chen Hu , Yi Yang , Zhengzhong Du , Fengyan Qi
IPC分类号： G10L13/00 , G10L19/00
CPC分类号： G10L19/005
摘要： The present invention discloses a signal processing method adapted to process a synthesized signal in packet loss concealment. The method includes the following steps: receiving a good frame following a lost frame, obtaining an energy ratio of energy of a signal in the signal of the good frame signal to energy of a synthesized signal corresponding to the same time of the good frame; and adjusting the synthesized signal in accordance with the energy ratio. The present invention also discloses a signal processing apparatus and a voice decoder. Through using the method provided by the present invention, the synthesized signal is adjusted in accordance with the energy ratio of the energy of the first good frame following the lost frame to the energy of the synthesized signal to ensure that there be not a waveform sudden change or an energy sudden change at the place where the lost frame and the first good frame following the lost frame are jointed in the synthesized signal, to realize the waveform's smooth transition and to avoid music noises.
摘要翻译：本发明公开了一种适用于处理分组丢失隐藏中的合成信号的信号处理方法。该方法包括以下步骤：接收丢失帧之后的良好帧，获得良好帧信号的信号中的信号的能量与对应于良好帧的相同时间的合成信号的能量的能量比; 并根据能量比调整合成信号。本发明还公开了一种信号处理装置和语音解码器。通过使用本发明提供的方法，根据丢失帧之后的第一好帧的能量与合成信号的能量的能量比来调整合成信号，以确保没有波形突然变化或者丢失帧和丢失帧之后的第一好帧相连接在合成信号中的位置处的能量突然变化，以实现波形的平滑过渡并避免音乐噪声。

3. 发明授权

US07957961B2 Method and apparatus for obtaining an attenuation factor 有权
标题翻译：用于获得衰减因子的方法和装置
公开(公告)号：US07957961B2
公开(公告)日：2011-06-07
申请号：US12556048
申请日：2009-09-09
申请人： Wuzhou Zhan , Dongqi Wang , Yongfeng Tu , Jing Wang , Qing Zhang , Lei Miao , Jianfeng Xu , Chen Hu , Yi Yang , Zhengzhong Du , Fengyan Qi
发明人： Wuzhou Zhan , Dongqi Wang , Yongfeng Tu , Jing Wang , Qing Zhang , Lei Miao , Jianfeng Xu , Chen Hu , Yi Yang , Zhengzhong Du , Fengyan Qi
IPC分类号： G10L19/00 , G10L19/08 , H03M13/00 , H04L1/00
CPC分类号： G10L19/005 , G10L19/0204 , G10L19/097
摘要： The present invention discloses a method for obtaining an attenuation factor. The method is adapted to process the synthesized signal in packet loss concealment, and includes: obtaining a change trend of a pitch of a signal; obtaining an attenuation factor, according to the change trend of the pitch of the signal. The present invention also discloses an apparatus for obtaining an attenuation factor. A self-adaptive attenuation factor is adjusted dynamically by using the latest change trend of a history signal by using the present invention. The smooth transition from the history data to the data last received is realized so that the attenuation speed is kept consistent between the compensated signal and the original signal as much as possible for adapting to the characteristic of various human voices.
摘要翻译：本发明公开了一种获得衰减因子的方法。该方法适用于处理分组丢失隐藏中的合成信号，包括：获得信号间距的变化趋势; 根据信号音调的变化趋势获得衰减因子。本发明还公开了一种用于获得衰减因子的装置。通过使用本发明的历史信号的最新变化趋势来动态调整自适应衰减因子。实现从历史数据到最后接收的数据的平滑过渡，使得尽可能地使补偿信号和原始信号之间的衰减速度保持一致，以适应各种人声的特征。

4. 发明申请

US20090076808A1 METHOD AND DEVICE FOR PERFORMING FRAME ERASURE CONCEALMENT ON HIGHER-BAND SIGNAL 有权
标题翻译：用于对高频信号进行帧擦除的方法和装置
公开(公告)号：US20090076808A1
公开(公告)日：2009-03-19
申请号：US12273391
申请日：2008-11-18
申请人： Jianfeng Xu , Lei Miao , Chen Hu , Qing Zhang , Lijing Xu , Wei Li , Zhengzhong Du , Yi Yang , Fengyan Qi , Wuzhou Zhan , Dongqi Wang
发明人： Jianfeng Xu , Lei Miao , Chen Hu , Qing Zhang , Lijing Xu , Wei Li , Zhengzhong Du , Yi Yang , Fengyan Qi , Wuzhou Zhan , Dongqi Wang
IPC分类号： G10L11/04
CPC分类号： G10L19/005 , G10L19/0204
摘要： A method for performing a frame erasure concealment for a higher-band signal involves calculating a periodic intensity of the higher-band signal with respect to pitch period information of a lower-band signal; comparing the periodic intensity to a preconfigured threshold and, if the periodic intensity is greater or equal to the preconfigured threshold, performing the frame erasure concealment with a pitch period repetition based method. If the periodic intensity is less than the preconfigured threshold, performing the frame erasure concealment with a previous frame data repetition based method. A device for performing a frame erasure concealment includes a periodic intensity calculation module, a pitch period repetition module, and a previous frame data repetition module. The pitch period repetition module performs the frame erasure concealment with a pitch period repetition based method; and the previous frame data repetition module performs the frame erasure concealment with a previous frame data repetition based method.
摘要翻译：用于执行较高频带信号的帧擦除隐藏的方法包括：计算相对于较低频带信号的音调周期信息的较高频带信号的周期性强度; 将周期性强度与预配置的阈值进行比较，并且如果周期性强度大于或等于预配置阈值，则以基于音调周期重复的方法执行帧擦除隐藏。如果周期性强度小于预配置阈值，则使用先前基于帧数据重复的方法来执行帧擦除隐藏。用于执行帧擦除隐藏的装置包括周期性强度计算模块，音调周期重复模块和先前的帧数据重复模块。音调周期重复模块以音调周期重复方式执行帧擦除隐藏; 前一帧数据重复模块利用先前基于帧数据重复的方法执行帧擦除隐藏。

5. 发明申请

US20090076807A1 METHOD AND DEVICE FOR PERFORMING FRAME ERASURE CONCEALMENT TO HIGHER-BAND SIGNAL 审中-公开
标题翻译：对高频信号进行帧擦除的方法和装置
公开(公告)号：US20090076807A1
公开(公告)日：2009-03-19
申请号：US12134410
申请日：2008-06-06
申请人： Jianfeng Xu , Lei Miao , Chen Hu , Qing Zhang , Lijing Xu , Wei Li , Zhengzhong Du , Yi Yang , Fengyan Qi , Wuzhou Zhan , Dongqi Wang
发明人： Jianfeng Xu , Lei Miao , Chen Hu , Qing Zhang , Lijing Xu , Wei Li , Zhengzhong Du , Yi Yang , Fengyan Qi , Wuzhou Zhan , Dongqi Wang
IPC分类号： G10L11/04
CPC分类号： G10L19/005 , G10L19/0204
摘要： The present invention discloses a method for performing a frame erasure concealment to a higher-band signal, including: calculating a periodic intensity of a higher-band signal with respect to a lower-band signal; judging whether the periodic intensity of the higher-band signal is higher than or equal to a preconfigured threshold; if the periodic intensity of the higher-band signal is higher than or equal to the preconfigured threshold, using a pitch period repetition method to perform the frame erasure concealment to the higher-band signal of a current lost frame; and if the periodic intensity of the higher-band signal is lower than the preconfigured threshold, using a previous frame data repetition method to perform the frame erasure concealment to the higher-band signal of the current lost frame. The present invention further discloses a device for performing a frame erasure concealment to a higher-band signal and a speech decoder. The problem that the quality of the voice signal is lowered is avoided.
摘要翻译：本发明公开了一种用于对较高频带信号执行帧擦除隐藏的方法，包括：计算相对于较低频带信号的较高频带信号的周期性强度; 判断高频信号的周期性强度是否高于或等于预配置阈值; 如果高频信号的周期性强度高于或等于预配置阈值，则使用音调周期重复方法对当前丢失帧的较高频带信号执行帧擦除隐藏; 并且如果高频信号的周期性强度低于预配置阈值，则使用先前的帧数据重复方法对当前丢失帧的较高频带信号执行帧擦除隐藏。本发明还公开了一种用于对较高频带信号和语音解码器执行帧擦除隐藏的装置。避免语音信号质量下降的问题。

6. 发明授权

US08200481B2 Method and device for performing frame erasure concealment to higher-band signal 有权
标题翻译：用于对较高频带信号进行帧擦除隐藏的方法和装置
公开(公告)号：US08200481B2
公开(公告)日：2012-06-12
申请号：US12129118
申请日：2008-05-29
申请人： Jianfeng Xu , Lei Miao , Chen Hu , Qing Zhang , Lijing Xu , Wei Li , Zhengzhong Du , Yi Yang , Fengyan Qi , Wuzhou Zhan , Dongqi Wang
发明人： Jianfeng Xu , Lei Miao , Chen Hu , Qing Zhang , Lijing Xu , Wei Li , Zhengzhong Du , Yi Yang , Fengyan Qi , Wuzhou Zhan , Dongqi Wang
IPC分类号： G10L11/04 , G10L19/00
CPC分类号： G10L19/005 , G10L19/0204
摘要： The present invention discloses a method for performing a frame erasure concealment to a higher-band signal, including: calculating a periodic intensity of a higher-band signal with respect to a lower-band signal; judging whether the periodic intensity of the higher-band signal is higher than or equal to a preconfigured threshold; if the periodic intensity of the higher-band signal is higher than or equal to the preconfigured threshold, using a pitch period repetition method to perform the frame erasure concealment to the higher-band signal of a current lost frame; and if the periodic intensity of the higher-band signal is lower than the preconfigured threshold, using a previous frame data repetition method to perform the frame erasure concealment to the higher-band signal of the current lost frame. The present invention further discloses a device for performing a frame erasure concealment to a higher-band signal and a speech decoder. The problem that the quality of the voice signal is lowered is avoided.
摘要翻译：本发明公开了一种用于对较高频带信号执行帧擦除隐藏的方法，包括：计算相对于较低频带信号的较高频带信号的周期性强度; 判断高频信号的周期性强度是否高于或等于预配置阈值; 如果高频信号的周期性强度高于或等于预配置阈值，则使用音调周期重复方法对当前丢失帧的较高频带信号执行帧擦除隐藏; 并且如果高频信号的周期性强度低于预配置阈值，则使用先前的帧数据重复方法对当前丢失帧的较高频带信号执行帧擦除隐藏。本发明还公开了一种用于对较高频带信号和语音解码器执行帧擦除隐藏的装置。避免语音信号质量下降的问题。

7. 发明授权

US07552048B2 Method and device for performing frame erasure concealment on higher-band signal 有权
标题翻译：在较高频带信号上执行帧擦除隐藏的方法和装置
公开(公告)号：US07552048B2
公开(公告)日：2009-06-23
申请号：US12273391
申请日：2008-11-18
申请人： Jianfeng Xu , Lei Miao , Chen Hu , Qing Zhang , Lijing Xu , Wei Li , Zhengzhong Du , Yi Yang , Fengyan Qi , Wuzhou Zhan , Dongqi Wang
发明人： Jianfeng Xu , Lei Miao , Chen Hu , Qing Zhang , Lijing Xu , Wei Li , Zhengzhong Du , Yi Yang , Fengyan Qi , Wuzhou Zhan , Dongqi Wang
IPC分类号： G10L11/04 , G10L19/00
CPC分类号： G10L19/005 , G10L19/0204
摘要： A method for performing a frame erasure concealment for a higher-band signal involves calculating a periodic intensity of the higher-band signal with respect to pitch period information of a lower-band signal; comparing the periodic intensity to a preconfigured threshold and, if the periodic intensity is greater or equal to the preconfigured threshold, performing the frame erasure concealment with a pitch period repetition based method. If the periodic intensity is less than the preconfigured threshold, performing the frame erasure concealment with a previous frame data repetition based method. A device for performing a frame erasure concealment includes a periodic intensity calculation module, a pitch period repetition module, and a previous frame data repetition module. The pitch period repetition module performs the frame erasure concealment with a pitch period repetition based method; and the previous frame data repetition module performs the frame erasure concealment with a previous frame data repetition based method.
摘要翻译：用于执行较高频带信号的帧擦除隐藏的方法包括：计算相对于较低频带信号的音调周期信息的较高频带信号的周期性强度; 将周期性强度与预配置的阈值进行比较，并且如果周期性强度大于或等于预配置阈值，则以基于音调周期重复的方法执行帧擦除隐藏。如果周期性强度小于预配置阈值，则使用先前基于帧数据重复的方法来执行帧擦除隐藏。用于执行帧擦除隐藏的装置包括周期性强度计算模块，音调周期重复模块和先前的帧数据重复模块。音调周期重复模块以音调周期重复方式执行帧擦除隐藏; 前一帧数据重复模块利用先前基于帧数据重复的方法执行帧擦除隐藏。

8. 发明申请

US20090076805A1 METHOD AND DEVICE FOR PERFORMING FRAME ERASURE CONCEALMENT TO HIGHER-BAND SIGNAL 有权
公开(公告)号：US20090076805A1
公开(公告)日：2009-03-19
申请号：US12129118
申请日：2008-05-29
申请人： Jianfeng Xu , Lei Miao , Chen Hu , Qing Zhang , Lijing Xu , Wei Li , Zhengzhong Du , Yi Yang , Fengyan Qi , Wuzhou Zhan , Dongqi Wang
发明人： Jianfeng Xu , Lei Miao , Chen Hu , Qing Zhang , Lijing Xu , Wei Li , Zhengzhong Du , Yi Yang , Fengyan Qi , Wuzhou Zhan , Dongqi Wang
IPC分类号： G10L11/04 , G10L21/00
CPC分类号： G10L19/005 , G10L19/0204
摘要： The present invention discloses a method for performing a frame erasure concealment to a higher-band signal, including: calculating a periodic intensity of a higher-band signal with respect to a lower-band signal; judging whether the periodic intensity of the higher-band signal is higher than or equal to a preconfigured threshold; if the periodic intensity of the higher-band signal is higher than or equal to the preconfigured threshold, using a pitch period repetition method to perform the frame erasure concealment to the higher-band signal of a current lost frame; and if the periodic intensity of the higher-band signal is lower than the preconfigured threshold, using a previous frame data repetition method to perform the frame erasure concealment to the higher-band signal of the current lost frame. The present invention further discloses a device for performing a frame erasure concealment to a higher-band signal and a speech decoder. The problem that the quality of the voice signal is lowered is avoided.

9. 发明授权

US08219395B2 Frame compensation method and system 有权
标题翻译：帧补偿方法和系统
公开(公告)号：US08219395B2
公开(公告)日：2012-07-10
申请号：US12427112
申请日：2009-04-21
申请人： Ling Shen , Jianfeng Xu , Yaohua Guan , Wei Li , Lei Miao , Lijing Xu , Qing Zhang , Zhengzhong Du , Chen Hu , Yi Yang
发明人： Ling Shen , Jianfeng Xu , Yaohua Guan , Wei Li , Lei Miao , Lijing Xu , Qing Zhang , Zhengzhong Du , Chen Hu , Yi Yang
IPC分类号： G10L21/02 , G10L19/00
CPC分类号： H04L1/0083 , G10L19/005
摘要： A frame compensation method is provided. The method includes: obtaining a length of a lost frame and a length of a correct frame; determining that the length of the correct frame is integral power of 2 times of the length of the lost frame, and then obtaining a data sequence with the same length as the length of the lost frame according to the correct frame; and compensating the lost frame according to the data sequence to obtain a compensated data frame. A frame compensation system is also provided. Lost frames in various formats are compensated according to correct frames in various formats, so that the limitation of the related art that a lost frame in a single format can be merely compensated according to a correct frame in a single format is eliminated, and the effect of the compensated data frames is better than that of filling comfort noises.
摘要翻译：提供了帧补偿方法。该方法包括：获得丢失帧的长度和正确帧的长度; 确定正确帧的长度是丢失帧长度的2倍的整数倍，然后根据正确的帧获得与丢失帧的长度相同长度的数据序列; 并根据数据序列补偿丢失帧以获得补偿数据帧。还提供了帧补偿系统。各种格式的丢帧按照各种格式的正确帧进行补偿，因此消除了相关技术的限制，即单个格式的丢失帧只能根据单一格式的正确帧进行补偿，并且效果的补偿数据帧优于填充舒适噪声。

10. 发明授权

US08566085B2 Preprocessing method, preprocessing apparatus and coding device 有权
标题翻译：预处理方法，预处理装置和编码装置
公开(公告)号：US08566085B2
公开(公告)日：2013-10-22
申请号：US12724066
申请日：2010-03-15
申请人： Lei Miao , Fengyan Qi , Jianfeng Xu , Dejun Zhang , Qing Zhang
发明人： Lei Miao , Fengyan Qi , Jianfeng Xu , Dejun Zhang , Qing Zhang
IPC分类号： G10L19/00
CPC分类号： G10L21/06 , G10L19/06 , G10L19/09 , G10L19/18
摘要： The present disclosure relates to coding and decoding technologies, and discloses a preprocessing method, a preprocessing apparatus, and a coding device. The preprocessing method includes: obtaining characteristic information of a current frame signal; identifying whether the current frame signal requires no coding operation of removing LTC according to the characteristic information of the current frame signal and preset information; and if identifying that the current frame signal requires no coding operation of removing LTC, performing the coding operation of removing STC for the current frame signal; and if identifying that the current frame signal requires the coding operation of removing LTC, performing the coding operations of removing both LTC and STC for the current frame signal. Through the technical solution provided herein, the coding operation of removing LTC is performed for only part of the input frame signals.
摘要翻译：本公开涉及编码和解码技术，并且公开了一种预处理方法，预处理装置和编码装置。预处理方法包括：获得当前帧信号的特征信息; 识别当前帧信号是否不需要根据当前帧信号和预设信息的特征信息去除LTC的编码操作; 并且如果识别出当前帧信号不需要去除LTC的编码操作，则执行去除当前帧信号的STC的编码操作; 并且如果识别当前帧信号需要去除LTC的编码操作，则执行去除当前帧信号的LTC和STC的编码操作。通过本文提供的技术方案，仅对部分输入帧信号执行去除LTC的编码操作。

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