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1. 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。

2. 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。

3. 发明申请

US20120265543A1 MULTI-CHANNEL SIGNAL ENCODING AND DECODING METHOD, APPARATUS, AND SYSTEM 有权
标题翻译：多通道信号编码和解码方法，装置和系统
公开(公告)号：US20120265543A1
公开(公告)日：2012-10-18
申请号：US13530819
申请日：2012-06-22
申请人： Yue LANG , Wenhai WU , Lei MIAO , Chen HU
发明人： Yue LANG , Wenhai WU , Lei MIAO , Chen HU
IPC分类号： G10L19/00
CPC分类号： H04H20/89
摘要： A multi-channel signal encoding method includes: determining a sum of channel level differences (CLDs) of a current frame of a multi-channel signal in a certain frequency band area; determining an average value of sums of channel level differences of at least two frames before the current frame in the certain frequency band area; according to the sum of channel level differences of the current frame of the multi-channel signal in the certain frequency band area, the average value of the sums of channel level differences of at least two frames before the current frame in the certain frequency band area, and a preset threshold, judging whether the channel level differences of the current frame are in a transient state or a non-transient state, and obtaining a judgment result; and according to the judgment result, performing quantization processing on the channel level differences of the current frame of the multi-channel signal.
摘要翻译：多信道信号编码方法包括：确定特定频带区域中的多信道信号的当前帧的信道电平差（CLD）之和; 确定所述特定频带区域中的当前帧之前的至少两帧的信道电平差的和的平均值; 根据特定频带区域中的多信道信号的当前帧的信道电平差的和，在特定频带区域中的当前帧之前的至少两帧的信道电平差的和的平均值和预设阈值，判断当前帧的信道电平差是处于暂态还是非瞬态状态，并获得判断结果; 并且根据判断结果，对多信道信号的当前帧的信道电平差执行量化处理。

4. 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。

5. 发明申请

US20120189127A1 STEREO DECODING METHOD AND APPARATUS 有权
标题翻译：立体声解码方法和装置
公开(公告)号：US20120189127A1
公开(公告)日：2012-07-26
申请号：US13437552
申请日：2012-04-02
申请人： Wenhai WU , Lei MIAO , Yue LANG , Qi ZHANG
发明人： Wenhai WU , Lei MIAO , Yue LANG , Qi ZHANG
IPC分类号： H04R5/00
CPC分类号： H04S5/005 , G10L19/008 , H04S5/00 , H04S2420/01 , H04S2420/03
摘要： A stereo decoding method and apparatus are disclosed. The method includes: restoring a monophonic signal from a received code stream through decoding; restoring an interchannel level difference, a group delay, and a group phase from the received code stream through decoding; and processing the monophonic signal according to the interchannel level difference, group delay, and group phase to obtain a first channel signal and a second channel signal. According to the stereo decoding method and apparatus provided in embodiments of the present invention, the first and second channel signals are obtained according to the monophonic signal, ILD, group delay, and group phase by referring to not only the ILD but also the group delay and group phase, thereby yielding favorable stereo sound field effect for the obtained first and second channel signals.
摘要翻译：公开了一种立体声解码方法和装置。该方法包括：通过解码从接收到的码流中恢复单声道信号; 通过解码从接收到的代码流中恢复通道间级差，组延迟和组相位; 以及根据通道间电平差，组延迟和组相位处理单声道信号以获得第一通道信号和第二通道信号。根据本发明的实施例中提供的立体声解码方法和装置，不仅参照ILD而且还参照组延迟，根据单声道信号，ILD，组延迟和组相位来获得第一和第二声道信号和组相位，从而为获得的第一和第二信道信号产生有利的立体声场效应。

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