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51. 发明授权

US07835906B1 Encoding method, apparatus and device and decoding method 有权
标题翻译：编码方法，装置和装置及解码方法
公开(公告)号：US07835906B1
公开(公告)日：2010-11-16
申请号：US12790345
申请日：2010-05-28
申请人： Lei Miao , Fengyan Qi , Qing Zhang
发明人： Lei Miao , Fengyan Qi , Qing Zhang
IPC分类号： G10L19/02 , G10L19/12 , G10L19/00
CPC分类号： G10L19/22 , G10L19/0017
摘要： The present invention relates to encoding technology. The encoding method includes selecting a second encoding mode for encoding an input frame signal according to an analysis on signal characteristic of the input frame signal; obtaining coding demand values for a preset first encoding mode and the second encoding mode which are used to encode the input frame signal; determining, from the above encoding modes based on the coding demand values, an encoding mode for encoding the input frame signal; and multiplexing information of the determined encoding mode and encoded data which are encoded according to the determined encoding mode. Hence, the compatibility and the prioritization in terms of the encoding modes can be achieved.
摘要翻译：本发明涉及编码技术。编码方法包括根据对输入帧信号的信号特性的分析来选择用于对输入帧信号进行编码的第二编码模式; 获得用于编码输入帧信号的预设第一编码模式和第二编码模式的编码需求值; 从上述基于编码需求值的编码模式确定用于对输入帧信号进行编码的编码模式; 以及根据所确定的编码模式复用所确定的编码模式和编码数据的信息。因此，可以实现在编码模式方面的兼容性和优先级。

52. 发明授权

US08489405B2 Compression coding and decoding method, coder, decoder, and coding device 有权
标题翻译：压缩编码和解码方法，编码器，解码器和编码装置
公开(公告)号：US08489405B2
公开(公告)日：2013-07-16
申请号：US13309373
申请日：2011-12-01
申请人： Fengyan Qi , Lei Miao , Qing Zhang
发明人： Fengyan Qi , Lei Miao , Qing Zhang
IPC分类号： G10L19/00 , G10L19/04 , G10L19/12
CPC分类号： G10L19/09 , H03M7/40
摘要： The embodiments of the present invention relate to a compression coding and decoding method, a coder, a decoder and a coding device. The compression coding method includes: extracting sign information of an input signal to obtain an absolute value signal of the input signal; obtaining a residual signal of the absolute value signal by using a prediction coefficient, where the prediction coefficient is obtained by prediction and analysis that are performed according to a signal characteristic of the absolute value signal of the input signal; and multiplexing the residual signal, the sign information and a coding parameter to output a coding code stream, after the residual signal, the sign information and the coding parameter are respectively coded, so as to improve compression efficiency of a voice and audio signal.
摘要翻译：本发明的实施例涉及压缩编码和解码方法，编码器，解码器和编码装置。压缩编码方法包括：提取输入信号的符号信息以获得输入信号的绝对值信号; 通过使用预测系数获得绝对值信号的残差信号，其中通过根据输入信号的绝对值信号的信号特性执行的预测和分析获得预测系数; 在分别对剩余信号，符号信息和编码参数进行编码之后，复用残留信号，符号信息和编码参数以输出编码码流，以提高语音和音频信号的压缩效率。

53. 发明授权

US08326608B2 Transcoding method, apparatus, device and system 有权
标题翻译：转码方法，装置，装置和系统
公开(公告)号：US08326608B2
公开(公告)日：2012-12-04
申请号：US13359339
申请日：2012-01-26
申请人： Chen Hu , Lei Miao , Zexin Liu , Longyin Chen , Herve Marcel Taddei , Qing Zhang
发明人： Chen Hu , Lei Miao , Zexin Liu , Longyin Chen , Herve Marcel Taddei , Qing Zhang
IPC分类号： G10L21/00
CPC分类号： G10L19/173 , G10L19/24
摘要： A method, a device, and a system for transcoding between two embedded codecs are disclosed. The method includes: delaying a first encoded stream in input streams for integer number of frames, where the first encoded stream includes a stream of at least one extension layer in the input streams obtained after input signals are encoded by using a first codec; and using the first codec to decode other encoded streams in the input streams to obtain the first decoded signal; and performing delay aligning and adjusting to obtain an adjusted signal so as to reduce the transcoding complexity and enhance quality of the transcoded signals.
摘要翻译：公开了一种用于在两个嵌入式编解码器之间进行代码转换的方法，设备和系统。该方法包括：在整数帧的输入流中延迟第一编码流，其中第一编码流包括在通过使用第一编解码器对输入信号进行编码之后获得的输入流中的至少一个扩展层的流; 以及使用所述第一编解码器来解码所述输入流中的其他编码流以获得所述第一解码信号; 并执行延迟对准和调整以获得经调整的信号，以便降低代码转换复杂度并提高转码信号的质量。

54. 发明申请

US20120136669A1 TRANSCODING METHOD, APPARATUS, DEVICE AND SYSTEM 有权
标题翻译： TRANSCODING方法，装置，装置和系统
公开(公告)号：US20120136669A1
公开(公告)日：2012-05-31
申请号：US13359339
申请日：2012-01-26
申请人： Chen Hu , Lei Miao , Zexin Liu , Longyin Chen , Herve Marcel Taddei , Qing Zhang
发明人： Chen Hu , Lei Miao , Zexin Liu , Longyin Chen , Herve Marcel Taddei , Qing Zhang
IPC分类号： G10L19/00
CPC分类号： G10L19/173 , G10L19/24
摘要： A method, a device, and a system for transcoding between two embedded codecs are disclosed. The method includes: delaying a first encoded stream in input streams for integer number of frames, where the first encoded stream includes a stream of at least one extension layer in the input streams obtained after input signals are encoded by using a first codec; and using the first codec to decode other encoded streams in the input streams to obtain the first decoded signal; and performing delay aligning and adjusting to obtain an adjusted signal so as to reduce the transcoding complexity and enhance quality of the transcoded signals.
摘要翻译：公开了一种用于在两个嵌入式编解码器之间进行代码转换的方法，设备和系统。该方法包括：在整数帧的输入流中延迟第一编码流，其中第一编码流包括在通过使用第一编解码器对输入信号进行编码之后获得的输入流中的至少一个扩展层的流; 以及使用所述第一编解码器来解码所述输入流中的其他编码流以获得所述第一解码信号; 并执行延迟对准和调整以获得经调整的信号，以便降低代码转换复杂度并提高转码信号的质量。

55. 发明授权

US08134484B2 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：US08134484B2
公开(公告)日：2012-03-13
申请号：US13086774
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： A device relating to information processing technologies and including an encoding and decoding method configured to solve the poor decoding quality problem. The method 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：一种与信息处理技术相关的装置，包括用于解决差的解码质量问题的编码和解码方法。该方法包括：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。

56. 发明授权

US08121832B2 Method and apparatus for encoding and decoding high frequency signal 有权
标题翻译：用于对高频信号进行编码和解码的方法和装置
公开(公告)号：US08121832B2
公开(公告)日：2012-02-21
申请号：US11984315
申请日：2007-11-15
申请人： Ki-hyun Choo , Lei Miao , Eun-mi Oh
发明人： Ki-hyun Choo , Lei Miao , Eun-mi Oh
IPC分类号： G10L19/10
CPC分类号： G10L19/06 , G10L19/02 , G10L19/0208 , G10L19/04 , G10L19/07 , G10L19/167 , G10L21/038 , G10L25/12 , G10L25/21 , G10L25/90
摘要： Provided are a method and apparatus for encoding and decoding a high frequency signal by using a low frequency signal. The high frequency signal can be encoded by extracting a coefficient by linear predicting a high frequency signal, and encoding the coefficient, generating a signal by using the extracted coefficient and a low frequency signal, and encoding the high frequency signal by calculating a ratio between the high frequency signal and an energy value of the generated signal. Also, the high frequency signal can be decoded by decoding a coefficient, which is extracted by linear predicting a high frequency signal, and a low frequency signal, and generating a signal by using the decoded coefficient and the decoded low frequency signal, and adjusting the generated signal by decoding a ratio between the generated signal and an energy value of the high frequency signal.
摘要翻译：提供了一种通过使用低频信号对高频信号进行编码和解码的方法和装置。高频信号可以通过线性预测高频信号提取系数进行编码，并对该系数进行编码，通过使用提取的系数和低频信号产生信号，并通过计算高频信号之间的比率来对高频信号进行编码高频信号和产生的信号的能量值。此外，可以通过对通过线性预测高频信号提取的系数和低频信号进行解码来解码高频信号，并且通过使用解码的系数和解码的低频信号来生成信号，并且调整通过解码所生成的信号与高频信号的能量值之间的比率来产生信号。

57. 发明授权

US08102680B2 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装置
公开(公告)号：US08102680B2
公开(公告)日：2012-01-24
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。

58. 发明申请

US20110251846A1 Transient Signal Encoding Method and Device, Decoding Method and Device, and Processing System 有权
标题翻译：瞬态信号编码方法与装置，解码方法及装置及处理系统
公开(公告)号：US20110251846A1
公开(公告)日：2011-10-13
申请号：US13172652
申请日：2011-06-29
申请人： Zexin Liu , Longyin Chen , Lei Miao , Chen Hu , Wei Xiao , Herve Marcel Taddei , Qing Zhang
发明人： Zexin Liu , Longyin Chen , Lei Miao , Chen Hu , Wei Xiao , Herve Marcel Taddei , Qing Zhang
IPC分类号： G10L19/00
CPC分类号： G10L19/025
摘要： A transient signal encoding method and device, decoding method and device, and processing system, where the transient signal encoding method includes: obtaining a reference sub-frame where a maximal time envelope having a maximal amplitude value is located from time envelopes of all sub-frames of an input transient signal; adjusting an amplitude value of the time envelope of each sub-frame before the reference sub-frame in such a way that a first difference is greater than a preset first threshold, in which the first difference is a difference between the amplitude value of the time envelope of each sub-frame before the reference sub-frame and the amplitude value of the maximal time envelope; and writing the adjusted time envelope into bitstream.
摘要翻译：一种瞬态信号编码方法和装置，解码方法和装置以及处理系统，其中瞬态信号编码方法包括：获得参考子帧，其中具有最大振幅值的最大时间包络位于所有子帧的时间包络上，输入瞬态信号的帧; 在所述参考子帧之前调整每个子帧的时间包络的幅度值，使得所述第一差值大于预设的第一阈值，其中所述第一差值是所述时间的振幅值参考子帧之前的每个子帧的包络和最大时间包络的振幅值; 并将经调整的时间包络写入比特流。

59. 发明申请

US20110194598A1 Methods, Apparatuses and System for Encoding and Decoding Signal 有权
标题翻译：用于编码和解码信号的方法，装置和系统
公开(公告)号：US20110194598A1
公开(公告)日：2011-08-11
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： H04B1/66
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。

60. 发明申请

US20100211384A1 Pitch detection method and apparatus 有权
标题翻译：间距检测方法和装置
公开(公告)号：US20100211384A1
公开(公告)日：2010-08-19
申请号：US12798715
申请日：2010-04-09
申请人： Fengyan Qi , Dejun Zhang , Lei Miao , Jianfeng Xu , Herve Marcel Taddei , Qing Zhang , Yang Gao
发明人： Fengyan Qi , Dejun Zhang , Lei Miao , Jianfeng Xu , Herve Marcel Taddei , Qing Zhang , Yang Gao
IPC分类号： G10L11/04 , G10L21/00 , G10L19/00
CPC分类号： G10L25/90 , G10L19/09
摘要： A pitch detection method and apparatus are disclosed. The method includes: performing pitch detection on an input signal in a signal domain, and obtaining a candidate pitch; performing linear prediction (LP) on the input signal, and obtaining an LP residual signal; setting a candidate pitch range that includes the candidate pitch; searching the candidate pitch range for the LP residual signal, and obtaining a selected pitch.
摘要翻译：公开了一种俯仰检测方法和装置。该方法包括：对信号域中的输入信号执行音调检测，并获得候选音调; 对输入信号执行线性预测（LP），获得LP残差信号; 设置包括候选音调的候选音高范围; 搜索候选音调范围用于LP残差信号，并获得所选音调。

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