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41. 发明授权

US08214218B2 Method and apparatus for switching speech or audio signals 有权
标题翻译：用于切换语音或音频信号的方法和装置
公开(公告)号：US08214218B2
公开(公告)日：2012-07-03
申请号：US13162309
申请日：2011-06-16
申请人： Zexin Liu , Lei Miao , Chen Hu , Wenhai Wu , Yue Lang , Qing Zhang
发明人： Zexin Liu , Lei Miao , Chen Hu , Wenhai Wu , Yue Lang , Qing Zhang
IPC分类号： G10L19/00
CPC分类号： G10L19/24 , G10L19/22 , G10L19/26
摘要： A method and an apparatus for switching speech or audio signals, wherein the method for switching speech or audio signals includes when switching of a speech or audio, weighting a first high frequency band signal of a current frame of speech or audio signal and a second high frequency band signal of the previous M frame of speech or audio signals to obtain a processed first high frequency band signal, where M is greater than or equal to 1, and synthesizing the processed first high frequency band signal and a first low frequency band signal of the current frame of speech or audio signal into a wide frequency band signal. In this way, speech or audio signals with different bandwidths can be smoothly switched, thus improving the quality of audio signals received by a user.
摘要翻译：一种用于切换语音或音频信号的方法和装置，其中用于切换语音或音频信号的方法包括：当切换语音或音频时，加权当前语音或音频信号帧的第一高频带信号，先前的M帧语音或音频信号的频带信号，以获得经处理的第一高频带信号，其中M大于或等于1，并且合成经处理的第一高频带信号和第一低频带信号将当前的语音帧或音频信号转换成宽频带信号。以这种方式，可以平滑地切换具有不同带宽的语音或音频信号，从而提高用户接收的音频信号的质量。

42. 发明授权

US08140343B2 Method, device and system for signal encoding and decoding 有权
标题翻译：用于信号编码和解码的方法，装置和系统
公开(公告)号：US08140343B2
公开(公告)日：2012-03-20
申请号：US13210127
申请日：2011-08-15
申请人： Chen Hu , Zexin Liu , Lei Miao , Longyin Chen , Qing Zhang , Wei Xiao , Herve Marcel Taddei
发明人： Chen Hu , Zexin Liu , Lei Miao , Longyin Chen , Qing Zhang , Wei Xiao , Herve Marcel Taddei
IPC分类号： G10L19/00 , G10L21/04
CPC分类号： G10L21/00 , G10L19/24
摘要： A method, device and system for signal encoding and decoding, the method comprising: encoding a core layer signal to obtain a core layer signal code; selecting an enhancement sample point that requires enhancement layer signal encoding according to the core layer signal code and the number of bits that can be used by an enhancement layer; obtaining an enhancement layer signal code of the enhancement sample point; and outputting a bit stream, where the bit stream includes the core layer signal code and the enhancement layer signal code. In embodiments of the present invention, according to the number of bits that can be used by the enhancement layer, the enhancement sample point that requires enhancement layer signal encoding is selected; the enhancement layer signal of the selected enhancement sample point is encoded and decoded; when no sufficient bits are available for the enhancement layer, the enhancement quality of the core layer can be improved.
摘要翻译：一种用于信号编码和解码的方法，装置和系统，所述方法包括：对核心层信号进行编码以获得核心层信号码; 选择需要根据核心层信号码的增强层信号编码和增强层可以使用的位数的增强采样点; 获得增强采样点的增强层信号码; 并输出比特流，其中比特流包括核心层信号码和增强层信号码。在本发明的实施例中，根据增强层可以使用的比特数，选择需要增强层信号编码的增强采样点; 所选择的增强采样点的增强层信号被编码和解码; 当没有足够的比特可用于增强层时，可以提高核心层的增强质量。

43. 发明申请

US20120053714A1 SIGNAL DELAY DETECTION METHOD, DETECTION APPARATUS, CODER 审中-公开
标题翻译：信号延迟检测方法，检测装置，编码器
公开(公告)号：US20120053714A1
公开(公告)日：2012-03-01
申请号：US13290809
申请日：2011-11-07
申请人： Wenhai Wu , Lei Miao , Yue Lang , Chen Hu , Zexin Liu , Qing Zhang
发明人： Wenhai Wu , Lei Miao , Yue Lang , Chen Hu , Zexin Liu , Qing Zhang
IPC分类号： G06F17/00
CPC分类号： H04S1/007 , H04S2420/03
摘要： A signal delay detection method, a detection apparatus, and a coder are disclosed to improve accuracy of detecting the signal delay. The method includes: obtaining a first cumulative cross-correlation function according to cross-correlation functions between channel signals; determining a first delay between the channel signals corresponding to the first cumulative cross-correlation function; adjusting a second cumulative cross-correlation function according to a relationship between the first delay and a second delay that exist between the channel signals, where the second delay is obtained at time of adjusting the second cumulative cross-correlation function and an initial value of the second delay is determined according to an initial value of a second weighting coefficient of the second cumulative cross-correlation function; and determining the second delay corresponding to the adjusted second cumulative cross-correlation function as a delay detected between the channel signals.
摘要翻译：公开了一种信号延迟检测方法，检测装置和编码器，以提高检测信号延迟的精度。该方法包括：根据信道信号之间的互相关函数获得第一累积互相关函数; 确定对应于第一累积互相关函数的信道信号之间的第一延迟; 根据存在于通道信号之间的第一延迟和第二延迟之间的关系来调整第二累积互相关函数，其中在调整第二累积互相关函数时获得第二延迟和第二累积互相关函数的初始值根据第二累积互相关函数的第二加权系数的初始值来确定第二延迟; 以及确定与所调整的第二累积互相关函数相对应的第二延迟作为在所述信道信号之间检测到的延迟。

44. 发明授权

US08103515B2 Signal classification processing method, classification processing device, and encoding system 有权
标题翻译：信号分类处理方法，分类处理装置和编码系统
公开(公告)号：US08103515B2
公开(公告)日：2012-01-24
申请号：US13160115
申请日：2011-06-14
申请人： Longyin Chen , Zexin Liu , Lei Miao , Chen Hu , Wei Xiao , Marcel Taddei Herve , Qing Zhang
发明人： Longyin Chen , Zexin Liu , Lei Miao , Chen Hu , Wei Xiao , Marcel Taddei Herve , Qing Zhang
IPC分类号： G10L19/00
CPC分类号： G10L19/22 , G10L19/025
摘要： A signal classification processing method, a classification processing device, and an encoding system are provided. The signal classification processing method includes: obtaining a high band input signal; determining a signal type of the obtained high band input signal according to a time domain characteristic parameter and/or a frequency domain characteristic parameter of the high band input signal; and determining an encoding mode corresponding to the signal type. The classification processing device includes: a receiving unit, configured to obtain a high band input signal; and a processing unit, configured to determine a signal type of the obtained high band input signal according to a time domain characteristic parameter and/or a frequency domain characteristic parameter of the high band input signal and determine an encoding mode corresponding to the signal type. An encoding system is also provided. Therefore, type subdivision and processing are performed on the high band input signal, so as to facilitate encoding and decoding processing of the signal.
摘要翻译：提供信号分类处理方法，分类处理装置和编码系统。信号分类处理方法包括：获得高频带输入信号; 根据高频带输入信号的时域特性参数和/或频域特性参数，确定所获得的高频带输入信号的信号类型; 以及确定与所述信号类型对应的编码模式。分类处理装置包括：接收单元，被配置为获得高频带输入信号; 以及处理单元，被配置为根据所述高频带输入信号的时域特性参数和/或频域特性参数来确定所获得的高频带输入信号的信号类型，并且确定与所述信号类型对应的编码模式。还提供了编码系统。因此，对高频带输入信号进行类型细分处理，便于信号的编码和解码处理。

45. 发明授权

US08000968B1 Method and apparatus for switching speech or audio signals 有权
标题翻译：用于切换语音或音频信号的方法和装置
公开(公告)号：US08000968B1
公开(公告)日：2011-08-16
申请号：US13094340
申请日：2011-04-26
申请人： Zexin Liu , Lei Miao , Chan Hu , Wenhai Wu , Yue Lang , Qing Zhang
发明人： Zexin Liu , Lei Miao , Chan Hu , Wenhai Wu , Yue Lang , Qing Zhang
IPC分类号： G10L19/00
CPC分类号： G10L19/24 , G10L19/22 , G10L19/26
摘要： A method and an apparatus for switching speech or audio signals, wherein the method for switching speech or audio signals includes when switching of a speech or audio, weighting a first high frequency band signal of a current frame of speech or audio signal and a second high frequency band signal of the previous M frame of speech or audio signals to obtain a processed first high frequency band signal, where M is greater than or equal to 1, and synthesizing the processed first high frequency band signal and a first low frequency band signal of the current frame of speech or audio signal into a wide frequency band signal. In this way, speech or audio signals with different bandwidths can be smoothly switched, thus improving the quality of audio signals received by a user.
摘要翻译：一种用于切换语音或音频信号的方法和装置，其中用于切换语音或音频信号的方法包括：当切换语音或音频时，加权当前语音或音频信号帧的第一高频带信号，先前的M帧语音或音频信号的频带信号，以获得经处理的第一高频带信号，其中M大于或等于1，并且合成经处理的第一高频带信号和第一低频带信号将当前的语音帧或音频信号转换成宽频带信号。以这种方式，可以平滑地切换具有不同带宽的语音或音频信号，从而提高用户接收的音频信号的质量。

46. 发明申请

US20110317843A1 STEREO ENCODING METHOD, STEREO ENCODING DEVICE, AND ENCODER 有权
标题翻译：立体声编码方法，立体声编码装置和编码器
公开(公告)号：US20110317843A1
公开(公告)日：2011-12-29
申请号：US13224806
申请日：2011-09-02
申请人： Yue LANG , Wenhai Wu , Lei Miao , Zexin Liu , Chen Hu , Qing Zhang
发明人： Yue LANG , Wenhai Wu , Lei Miao , Zexin Liu , Chen Hu , Qing Zhang
IPC分类号： H04R5/00
CPC分类号： G10L19/008 , G10L19/0204 , H04S1/007
摘要： A stereo encoding method, a stereo encoding device, and an encoder are provided. The stereo encoding method includes: obtaining a left channel energy relation coefficient and a right channel energy relation coefficient; obtaining a left energy sum and a right energy sum respectively; performing cross correlation between sub-bands of a first monophonic signal at a wave trough and sub-bands of the left channel signal according to the left channel energy relation coefficient, and performing cross correlation between sub-bands of the first monophonic signal at the wave trough and sub-bands of the right channel signal according to the right channel energy relation coefficient; obtaining a scaling factor by using the left energy sum, the right energy sum, and cross correlation results; and encoding the stereo left and right channel signals according to the scaling factor.
摘要翻译：提供立体声编码方法，立体声编码装置和编码器。立体声编码方法包括：获得左声道能量关系系数和右声道能量关系系数; 分别获得左边的能量和和能量的和; 根据左声道能量关系系数，在波谷处的第一单声道信号的子带与左声道信号的子带之间进行互相关，并且在波形上执行第一单声道信号的子带之间的互相关根据右声道能量关系系数，右声道信号的波谷和子带; 通过使用左边的能量和，正确的能量和和互相关的结果获得比例因子; 并根据缩放因子对立体声左右声道信号进行编码。

47. 发明申请

US20110301962A1 STEREO ENCODING METHOD AND APPARATUS 有权
标题翻译：立体声编码方法和装置
公开(公告)号：US20110301962A1
公开(公告)日：2011-12-08
申请号：US13208460
申请日：2011-08-12
申请人： Wenhai WU , Yue Lang , Lei Miao , Zexin Liu , Chen Hu , Qing Zhang
发明人： Wenhai WU , Yue Lang , Lei Miao , Zexin Liu , Chen Hu , Qing Zhang
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , H04S1/007 , H04S2420/03
摘要： A stereo encoding method and apparatus are provided, so as to reduce distortion caused by delay adjustment. The stereo encoding method includes: extracting a current interchannel delay of a stereo signal and a previous delay adjacent to the current interchannel delay; performing adjustment frame judgment according to characteristics of the current stereo signal when the current delay and the previous delay are different; and performing delay adjustment on the stereo signal by using the current interchannel delay if it is judged that a frame where the current delay occurs is an adjustment frame.
摘要翻译：提供立体声编码方法和装置，以便减少由延迟调整引起的失真。立体声编码方法包括：提取立体声信号的当前通道间延迟和与当前通道间延迟相邻的先前延迟; 当当前延迟和先前的延迟不同时，根据当前立体声信号的特性进行调整帧判断; 并且如果判断当前延迟发生的帧是调整帧，则通过使用当前的信道间延迟来对立体声信号执行延迟调整。

48. 发明申请

US20110270614A1 Method and Apparatus for Switching Speech or Audio Signals 有权
标题翻译：用于切换语音或音频信号的方法和装置
公开(公告)号：US20110270614A1
公开(公告)日：2011-11-03
申请号：US13162309
申请日：2011-06-16
申请人： Zexin Liu , Lei Miao , Chen Hu , Wenhai Wu , Yue Lang , Qing Zhang
发明人： Zexin Liu , Lei Miao , Chen Hu , Wenhai Wu , Yue Lang , Qing Zhang
IPC分类号： G10L13/00
CPC分类号： G10L19/24 , G10L19/22 , G10L19/26
摘要： A method and an apparatus for switching speech or audio signals, wherein the method for switching speech or audio signals includes when switching of a speech or audio, weighting a first high frequency band signal of a current frame of speech or audio signal and a second high frequency band signal of the previous M frame of speech or audio signals to obtain a processed first high frequency band signal, where M is greater than or equal to 1, and synthesizing the processed first high frequency band signal and a first low frequency band signal of the current frame of speech or audio signal into a wide frequency band signal. In this way, speech or audio signals with different bandwidths can be smoothly switched, thus improving the quality of audio signals received by a user.
摘要翻译：一种用于切换语音或音频信号的方法和装置，其中用于切换语音或音频信号的方法包括：当切换语音或音频时，加权当前语音或音频信号帧的第一高频带信号，先前的M帧语音或音频信号的频带信号，以获得经处理的第一高频带信号，其中M大于或等于1，并且合成经处理的第一高频带信号和第一低频带信号将当前的语音帧或音频信号转换成宽频带信号。以这种方式，可以平滑地切换具有不同带宽的语音或音频信号，从而提高用户接收的音频信号的质量。

49. 发明申请

US20110181449A1 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：US20110181449A1
公开(公告)日：2011-07-28
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： H03M5/02
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。

50. 发明授权

US09064488B2 Stereo encoding method, stereo encoding device, and encoder 有权
标题翻译：立体声编码方法，立体声编码装置和编码器
公开(公告)号：US09064488B2
公开(公告)日：2015-06-23
申请号：US13224806
申请日：2011-09-02
申请人： Yue Lang , Wenhai Wu , Lei Miao , Zexin Liu , Chen Hu , Qing Zhang
发明人： Yue Lang , Wenhai Wu , Lei Miao , Zexin Liu , Chen Hu , Qing Zhang
IPC分类号： H04R5/00 , G10L19/008 , H04S1/00 , G10L19/02
CPC分类号： G10L19/008 , G10L19/0204 , H04S1/007
摘要： A stereo encoding method, a stereo encoding device, and an encoder are provided. The stereo encoding method includes: obtaining a left channel energy relation coefficient and a right channel energy relation coefficient; obtaining a left energy sum and a right energy sum respectively; performing cross correlation between sub-bands of a first monophonic signal at a wave trough and sub-bands of the left channel signal according to the left channel energy relation coefficient, and performing cross correlation between sub-bands of the first monophonic signal at the wave trough and sub-bands of the right channel signal according to the right channel energy relation coefficient; obtaining a scaling factor by using the left energy sum, the right energy sum, and cross correlation results; and encoding the stereo left and right channel signals according to the scaling factor.
摘要翻译：提供立体声编码方法，立体声编码装置和编码器。立体声编码方法包括：获得左声道能量关系系数和右声道能量关系系数; 分别获得左边的能量和和能量的和; 根据左声道能量关系系数，在波谷处的第一单声道信号的子带与左声道信号的子带之间进行互相关，并且在波形处执行第一单声道信号的子带之间的互相关根据右声道能量关系系数，右声道信号的波谷和子带; 通过使用左边的能量和，正确的能量和和互相关的结果获得比例因子; 并根据缩放因子对立体声左右声道信号进行编码。

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