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1. 发明申请

US20110238427A1 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：US20110238427A1
公开(公告)日：2011-09-29
申请号：US13160115
申请日：2011-06-14
申请人： Longyin CHEN , Zexin LIU , Lei MIAO , Chen HU , Wei XIAO , Herve Marcel TADDEI , Qing ZHANG
发明人： Longyin CHEN , Zexin LIU , Lei MIAO , Chen HU , Wei XIAO , Herve Marcel TADDEI , 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。

2. 发明申请

US20110216839A1 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：US20110216839A1
公开(公告)日：2011-09-08
申请号：US13111834
申请日：2011-05-19
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： H04L27/00 , H04B14/04
CPC分类号： G10L21/00 , G10L19/24
摘要： A method, device and system for signal encoding and decoding are disclosed. The method includes: 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：公开了用于信号编码和解码的方法，装置和系统。该方法包括：编码核心层信号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。

3. 发明申请

US20110320211A1 METHOD AND APPARATUS FOR PROCESSING SIGNAL 有权
标题翻译：处理信号的方法和装置
公开(公告)号：US20110320211A1
公开(公告)日：2011-12-29
申请号：US13172509
申请日：2011-06-29
申请人： Zexin LIU , Lei MIAO , Longyin CHEN , Chen HU , Herve Marcel TADDEI , Qing ZHANG
发明人： Zexin LIU , Lei MIAO , Longyin CHEN , Chen HU , Herve Marcel TADDEI , Qing ZHANG
IPC分类号： G10L19/00
CPC分类号： G10L19/0208 , G10L19/26 , G10L21/0208
摘要： A method and an apparatus for processing a signal are provided. The method includes: obtaining an energy average value of each sub-band for a current frame frequency-domain signal; obtaining a current frame modification coefficient of each sub-band for the current frame frequency-domain signal according to a spectral envelope and the energy average value of each sub-band; obtaining a weighted modification coefficient of each sub-band for the current frame frequency-domain signal by using the current frame modification coefficient and a relevant frame modification coefficient; and modifying the spectral envelope of each sub-band for the current frame frequency-domain signal by using the weighted modification coefficient.
摘要翻译：提供了一种用于处理信号的方法和装置。该方法包括：获得当前帧频域信号的每个子带的能量平均值; 根据每个子带的频谱包络和能量平均值，获取当前帧频域信号的每个子带的当前帧修改系数; 通过使用当前帧修正系数和相关帧修正系数，获得当前帧频域信号的每个子带的加权修正系数; 以及通过使用加权修正系数来修改当前帧频域信号的每个子带的频谱包络。

4. 发明申请

US20120022878A1 SIGNAL DE-NOISING METHOD, SIGNAL DE-NOISING APPARATUS, AND AUDIO DECODING SYSTEM 有权
标题翻译：信号去噪方法，信号去噪装置和音频解码系统
公开(公告)号：US20120022878A1
公开(公告)日：2012-01-26
申请号：US13248725
申请日：2011-09-29
申请人： Longyin CHEN , Lei MIAO , Chen HU , Zexin LIU , Qing ZHANG
发明人： Longyin CHEN , Lei MIAO , Chen HU , Zexin LIU , Qing ZHANG
IPC分类号： G10L19/00
CPC分类号： G10L21/0205 , G10L19/24 , G10L21/0364 , G10L21/038
摘要： In the field of audio encoding/decoding technologies, a signal de-noising method is provided. The method includes: selecting, according to a degree of inter-frame correlation of a frame where a spectral coefficient to be adjusted resides, at least two spectral coefficients having high correlation with the spectral coefficient to be adjusted; performing weighting on the at least two selected spectral coefficients and the spectral coefficient to be adjusted to acquire a predicted value of the spectral coefficient to be adjusted; and adjusting a spectrum of a decoded signal by using the acquired predicted value, and outputting the adjusted decoded signal. A signal de-noising apparatus corresponding to the signal de-noising method and an audio decoding system using the signal de-noising apparatus are also provided.
摘要翻译：在音频编码/解码技术领域，提供了信号去噪方法。该方法包括：根据要调整的频谱系数的帧的帧间相关度，选择与要调整的频谱系数高度相关的至少两个频谱系数; 对所述至少两个所选频谱系数执行加权，以及对所述频谱系数进行调整，以获取要调整的频谱系数的预测值; 以及通过使用获取的预测值来调整解码信号的频谱，并输出调整后的解码信号。还提供了与信号去噪方法相对应的信号去噪装置和使用信号去噪装置的音频解码系统。

5. 发明申请

US20120016503A1 METHOD AND APPARATUS FOR SWITCHING SIGNAL DELAY 审中-公开
标题翻译：用于切换信号延迟的方法和装置
公开(公告)号：US20120016503A1
公开(公告)日：2012-01-19
申请号：US13243444
申请日：2011-09-23
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： G06F17/00
CPC分类号： G10L19/167 , G10L19/008
摘要： A method for switching signal delay disclosed in the embodiments of the present invention includes: detecting a signal delay being currently transmitted; judging whether an adjacent delay transmitted successfully is equal to the signal delay being transmitted currently if it is detected that the signal delay being transmitted is switchable; and switching the signal delay being currently transmitted if it is determined that the adjacent delay transmitted successfully is not equal to the signal delay being transmitted currently. An apparatus for switching signal delay is also disclosed. The embodiments of the present invention are applicable to a scenario of switching delay of left-channel signals and right-channel signals.
摘要翻译：一种用于切换本发明实施例中公开的信号延迟的方法包括：检测当前发送的信号延迟; 如果检测到所发送的信号延迟是可切换的，则判断当前发送的相邻延迟是否等于正在发送的信号延迟; 并且如果确定发送成功的相邻延迟不等于正在发送的信号延迟，则切换当前发送的信号延迟。还公开了用于切换信号延迟的装置。本发明的实施例可应用于左声道信号和右声道信号的切换延迟的场景。

6. 发明申请

US20130018660A1 AUDIO SIGNAL CODING AND DECODING METHOD AND DEVICE 有权
标题翻译：音频信号编码和解码方法和装置
公开(公告)号：US20130018660A1
公开(公告)日：2013-01-17
申请号：US13532237
申请日：2012-06-25
申请人： Fengyan QI , Zexin LIU , Lei MIAO
发明人： Fengyan QI , Zexin LIU , Lei MIAO
IPC分类号： G10L19/02
CPC分类号： G10L19/032 , G10L19/002 , G10L19/0204 , G10L19/028
摘要： Embodiments of the present invention provide an audio signal coding and decoding method and device. The coding method includes: dividing a frequency band of an audio signal into a plurality of sub-bands, and quantifying a sub-band normalization factor of each sub-band; determining signal bandwidth of bit allocation according to the quantified sub-band normalization factor, or according to the quantified sub-band normalization factor and bit rate information; allocating bits for a sub-band within the determined signal bandwidth; and coding a spectrum coefficient of the audio signal according to the bits allocated for each sub-band. According to embodiments of the present invention, during coding and decoding, signal bandwidth of bit allocation is determined according to the quantified sub-band normalization factor and bit rate information. In this manner, the determined signal bandwidth is effectively coded and decoded by centralizing the bits, and audio quality is improved.
摘要翻译：本发明的实施例提供一种音频信号编码和解码方法和装置。编码方法包括：将音频信号的频带划分成多个子带，并对每个子带的子带归一化因子进行量化; 根据量化的子带归一化因子，或根据量化的子带归一化因子和比特率信息确定比特分配的信号带宽; 在所确定的信号带宽内分配用于子带的比特; 以及根据为每个子带分配的比特来对音频信号的频谱系数进行编码。根据本发明的实施例，在编码和解码期间，根据量化的子带归一化因子和比特率信息来确定比特分配的信号带宽。以这种方式，通过集中位来有效地对确定的信号带宽进行编码和解码，并提高音频质量。

7. 发明申请

US20090248406A1 CODING METHOD, ENCODER, AND COMPUTER READABLE MEDIUM 有权
标题翻译：编码方法，编码器和计算机可读介质
公开(公告)号：US20090248406A1
公开(公告)日：2009-10-01
申请号：US12481060
申请日：2009-06-09
申请人： Dejun ZHANG , Liang ZHANG , Yue LANG , Tinghong WANG , Lixiong LI , Wenhai WU , Wei XIAO , Fuwei MA , Zexin LIU
发明人： Dejun ZHANG , Liang ZHANG , Yue LANG , Tinghong WANG , Lixiong LI , Wenhai WU , Wei XIAO , Fuwei MA , Zexin LIU
IPC分类号： G10L19/12
CPC分类号： G10L19/24 , G10L2019/0013
摘要： A coding method is adapted to select different codebook search algorithms according to varied types of input signals. An encoder using the coding method is also provided. As appropriate search algorithms may be selected according to all possible structural features of the input signals, certain types of signals for which satisfactory results may be obtained through simple computations may match with search algorithms suitable for these signal types and having low computation complexities, so as to achieve better performance with fewer system resources. Meanwhile, other types of signals that need complicated computations may be processed by more sophisticated search algorithms, thereby ensuring the coding quality.
摘要翻译：一种编码方法适用于根据不同类型的输入信号选择不同的码本搜索算法。还提供了使用编码方法的编码器。可以根据输入信号的所有可能的结构特征来选择合适的搜索算法，通过简单的计算可获得令人满意的结果的某些类型的信号可以与适合于这些信号类型的搜索算法匹配并具有低的计算复杂度，因此以更少的系统资源实现更好的性能。同时，需要复杂计算的其他类型的信号可以通过更复杂的搜索算法来处理，从而确保编码质量。

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