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61. 发明申请

US20090273951A1 SMART DRIVING METHOD FOR SYNCHRONOUS RECTIFIER AND ITS APPARATUS THEREOF 有权
标题翻译：同步整流器的智能驱动方法及其设备
公开(公告)号：US20090273951A1
公开(公告)日：2009-11-05
申请号：US12429099
申请日：2009-04-23
申请人： Yuancheng Ren , Junming Zhang , Lei Miao , Zhaoqi Mao
发明人： Yuancheng Ren , Junming Zhang , Lei Miao , Zhaoqi Mao
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： The present invention discloses a smart driving method for a secondary synchronous rectifier of an isolated converter and its apparatus thereof. The apparatus comprises: a main circuit having a secondary synchronous rectifier Q1; a differentiation filter circuit, filtering the drain-source voltage Vds of the secondary synchronous rectifier, comprising a capacitor and at least one resistor connected in series and outputting a filtered voltage Vf from either between said capacitor and said at least one resistor or between said at least one resistor; a smart driver, receiving Vf and Vds and putting out a driving signal to the gate of the secondary synchronous rectifier. The control approach is fulfilled by comparing Vds to a reference voltage Vthr2 and comparing the absolute value of Vf to another reference voltage Vthr3. When Vds Vthr3, Q1 is turned on. When Vds>Vthr1, Q1 is turned off, where Vthr1 is a predetermined reference voltage. The driving is reliable with an additional differentiation filter circuit to eliminate error trigger.
摘要翻译：本发明公开了一种用于隔离变换器的次级同步整流器的智能驱动方法及其装置。该装置包括：具有次级同步整流器Q1的主电路; 微分滤波器电路，对次级同步整流器的漏源电压Vds进行滤波，包括电容器和串联连接的至少一个电阻器，并从所述电容器和所述至少一个电阻器之间或在所述至少一个电阻器之间输出滤波电压Vf 最少一个电阻; 智能驱动器，接收Vf和Vds，并向第二同步整流器的门输出驱动信号。通过将Vds与参考电压Vthr2进行比较并将Vf的绝对值与另一参考电压Vthr3进行比较来实现控制方法。当Vds Vthr3时，Q1导通。当Vds> Vthr1时，Q1截止，其中Vthr1是预定的参考电压。驱动是可靠的，附加的微分滤波电路可以消除错误触发。

62. 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。

63. 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。

64. 发明授权

US08843366B2 Framing method and apparatus 有权
标题翻译：框架方法和装置
公开(公告)号：US08843366B2
公开(公告)日：2014-09-23
申请号：US12982142
申请日：2010-12-30
申请人： Dejun Zhang , Fengyan Qi , Lei Miao , Jianfeng Xu , Qing Zhang , Lixiong Li , Fuwei Ma
发明人： Dejun Zhang , Fengyan Qi , Lei Miao , Jianfeng Xu , Qing Zhang , Lixiong Li , Fuwei Ma
IPC分类号： G10L19/00 , G10L19/04 , G10L19/005
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.
摘要翻译：公开了一种框架方法和装置，以克服由现有技术中的简单平均框架引起的子帧之间的增益不一致。该方法包括：获得线性预测编码（LPC）顺序和信号的音调; 根据LPC预测顺序和间距，去除不适用于长期预测（LTP）合成的样本; 并将该信号的剩余采样分成几个子帧。本发明的技术方案适用于多媒体语音编码领域。

65. 发明授权

US08537584B2 Latch-off of synchronous rectification for light load control 有权
标题翻译：同步整流用于轻载控制的闭锁
公开(公告)号：US08537584B2
公开(公告)日：2013-09-17
申请号：US12824076
申请日：2010-06-25
申请人： Yuancheng Ren , Junming Zhang , Lei Miao , Zhaoqi Mao
发明人： Yuancheng Ren , Junming Zhang , Lei Miao , Zhaoqi Mao
IPC分类号： H02M7/217
CPC分类号： H02M3/33592 , H02M2001/0032 , Y02B70/1475 , Y02B70/16
摘要： Disclosed is a light load control circuit and the method accordingly where the synchronous rectification is latched off when the light load condition is detected for several successive cycles.
摘要翻译：公开了一种轻负载控制电路及其相应的方法，其中当在几个连续循环中检测到轻载条件时，同步整流被锁存。

66. 发明授权

US08515744B2 Method for encoding signal, and method for decoding signal 有权
标题翻译：信号编码方法，信号解码方法
公开(公告)号：US08515744B2
公开(公告)日：2013-08-20
申请号：US13172575
申请日：2011-06-29
申请人： Dejun Zhang , Lei Miao , Jianfeng Xu , Fengyan Qi , Qing Zhang , Lixiong Li , Fuwei Ma , Yang Gao
发明人： Dejun Zhang , Lei Miao , Jianfeng Xu , Fengyan Qi , Qing Zhang , Lixiong Li , Fuwei Ma , Yang Gao
IPC分类号： G10L19/00
CPC分类号： G10L19/09 , G10L19/0017 , H04N19/50
摘要： Method, apparatus, and system for encoding and decoding signals are disclosed. 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 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 is a first flag; or obtaining a second-domain predictive signal according to the LP processing result when the long-term flag is a second flag; converting the second-domain predictive signal into a first-domain predictive signal, calculating a first-domain predictive residual signal; and outputting a bit stream that includes the first-domain predictive residual signal. Subsequent encoding or decoding process is performed adaptively according to the long-term flag; and it is not always necessary to consider the LTP processing result, thus improving the compression performance of codec.
摘要翻译：公开了用于编码和解码信号的方法，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国旗; 当长期标志是第一标志时，根据LP处理结果和LTP处理结果获得第二域预测信号; 或者当长期标志是第二标志时根据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，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。随后的编码或解码过程根据长期标志自适应地执行; 并不总是需要考虑LTP处理结果，从而提高了编解码器的压缩性能。

67. 发明授权

US08436754B2 Encoding and decoding method and device 有权
标题翻译：编码和解码方法及装置
公开(公告)号：US08436754B2
公开(公告)日：2013-05-07
申请号：US13086780
申请日：2011-04-14
申请人： Chen Hu , Lei Miao , Zexin Liu , Longyin Chen , Qing Zhang , Herve Marcel Taddei
发明人： Chen Hu , Lei Miao , Zexin Liu , Longyin Chen , Qing Zhang , Herve Marcel Taddei
IPC分类号： H03M7/38
CPC分类号： G10L19/24 , G10L19/032
摘要： The present invention relates to information processing technologies and discloses an encoding and decoding method and device to solve the poor decoding quality problem. The technical solution of the present invention includes: encoding each sample of an input signal to generate an encoded signal of a core layer; comparing residuals of all or a part of the samples of the input signal with encoding thresholds, where the residuals are generated by core layer encoding, and performing encoding according to comparison results to generate an encoded signal of an enhancement layer; and writing the encoded signal of the core layer and the encoded signal of the enhancement layer into a bitstream to generate an encoded signal of the input signal.
摘要翻译：本发明涉及信息处理技术，并且公开了一种解码解码质量问题的解码方法和装置。本发明的技术方案包括：对输入信号的每个样本进行编码以产生核心层的编码信号; 将输入信号的全部或部分样本的残差与编码阈值进行比较，其中通过核心层编码生成残差，并根据比较结果执行编码以产生增强层的编码信号; 以及将核心层的编码信号和增强层的编码信号写入比特流以产生输入信号的编码信号。

68. 发明授权

US08400790B2 Latch-off of real time synchronous rectification for light load control 有权
标题翻译：实时同步整流用于轻载控制
公开(公告)号：US08400790B2
公开(公告)日：2013-03-19
申请号：US12824053
申请日：2010-06-25
申请人： Junming Zhang , Yuancheng Ren , Lei Miao , Zhaoqi Mao
发明人： Junming Zhang , Yuancheng Ren , Lei Miao , Zhaoqi Mao
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M3/158 , H02M2001/0032 , Y02B70/1475 , Y02B70/16
摘要： The present invention discloses a light load control circuit and the method accordingly where the synchronous rectification is latched off selectively according to the gate voltage of the synchronous rectifier.
摘要翻译：本发明公开了一种轻负载控制电路及其相应的方法，其中根据同步整流器的栅极电压选择性地锁存同步整流。

69. 发明授权

US08135593B2 Methods, apparatuses and system for encoding and decoding signal 有权
标题翻译：信号编码和解码方法，装置和系统
公开(公告)号：US08135593B2
公开(公告)日：2012-03-13
申请号：US13100091
申请日：2011-05-03
申请人： Lei Miao , Zexin Liu , Longyin Chen , Chen Hu , Wei Xiao , Herve Marcel Taddei , Qing Zhang
发明人： Lei Miao , Zexin Liu , Longyin Chen , Chen Hu , Wei Xiao , Herve Marcel Taddei , Qing Zhang
IPC分类号： G10L19/14 , G10L11/04 , G10L19/00 , G10L21/04
CPC分类号： G10L19/002 , G10L19/025 , G10L21/038 , G10L25/93
摘要： Methods and apparatuses for encoding a signal and decoding a signal and a system for encoding and decoding are provided. The method for encoding a signal includes performing a classification decision process on high frequency signals of input signals, adaptively encoding the high frequency signals according to the result of the classification decision process, and outputting a bitstream including codes of low frequency signals of the input signals, adaptive codes of the high frequency signals, and the result of the classification decision process. The classification decision process is performed on the high frequency signals, and adaptive encoding or adaptive decoding is performed according to the result of the classification decision process, so the quality of voice and audio output signals is improved.
摘要翻译：提供了用于编码信号和解码信号的方法和装置以及用于编码和解码的系统。编码信号的方法包括对输入信号的高频信号进行分类决定处理，根据分类决定处理的结果对高频信号进行自适应编码，并输出包含输入信号的低频信号码的比特流，高频信号的自适应码，以及分类决策过程的结果。对高频信号进行分类判定处理，根据分类判定处理的结果进行自适应编码或自适应解码，提高了语音输出信号的质量。

70. 发明申请

US20110187564A1 Encoding and Decoding Method and Device 有权
标题翻译：编码和解码方法和设备
公开(公告)号：US20110187564A1
公开(公告)日：2011-08-04
申请号：US13086780
申请日：2011-04-14
申请人： Chen Hu , Lei Miao , Zexin Liu , Longyin Chen , Qing Zhang , Herve Marcel Taddei
发明人： Chen Hu , Lei Miao , Zexin Liu , Longyin Chen , Qing Zhang , Herve Marcel Taddei
IPC分类号： H03M7/34
CPC分类号： G10L19/24 , G10L19/032
摘要： The present invention relates to information processing technologies and discloses an encoding and decoding method and device to solve the poor decoding quality problem. The technical solution of the present invention includes: encoding each sample of an input signal to generate an encoded signal of a core layer; comparing residuals of all or a part of the samples of the input signal with encoding thresholds, where the residuals are generated by core layer encoding, and performing encoding according to comparison results to generate an encoded signal of an enhancement layer; and writing the encoded signal of the core layer and the encoded signal of the enhancement layer into a bitstream to generate an encoded signal of the input signal.
摘要翻译：本发明涉及信息处理技术，并且公开了一种解码解码质量问题的解码方法和装置。本发明的技术方案包括：对输入信号的每个样本进行编码以产生核心层的编码信号; 将输入信号的全部或部分样本的残差与编码阈值进行比较，其中通过核心层编码生成残差，并根据比较结果执行编码以产生增强层的编码信号; 以及将核心层的编码信号和增强层的编码信号写入比特流以产生输入信号的编码信号。

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