公开(公告)号：US20110099005A1

公开(公告)日：2011-04-28

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： G10L11/04

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。

公开(公告)号：US20090240493A1

公开(公告)日：2009-09-24

申请号：US12477989

申请日：2009-06-04

申请人： Dejun ZHANG ,  Lixiong Li

发明人： Dejun ZHANG ,  Lixiong Li

IPC分类号： G10L19/04 ,  G10L19/12

CPC分类号： G10L19/10 ,  G10L2019/0013

摘要： A method and apparatus for searching fixed codebook are provided. The method includes: obtaining a basic codebook which comprises position information of N pulses on M tracks, wherein N and M are positive integers; choosing n pulses as search pulses, wherein the n pulses are parts of the N pulses and n is a positive integer smaller than N; and replacing position information of the n search pulses respectively with other position information on the tracks to obtain a searched codebook; executing the search process for K times, wherein K is a positive integer larger than or equal to 2, at least two or more search pulses are chosen in one of the K search processes , and the chosen search pulses vary in each of the K search processes; and obtaining an optimal codebook from the basic codebook and the searched codebook according to a preset criterion.

摘要翻译： 提供了一种用于搜索固定码本的方法和装置。 该方法包括：获得基本码本，其包括在M个磁道上的N个脉冲的位置信息，其中N和M是正整数; 选择n个脉冲作为搜索脉冲，其中n个脉冲是N个脉冲的一部分，n是小于N的正整数; 以及分别将n个搜索脉冲的位置信息替换在轨道上的其它位置信息以获得搜索到的码本; 执行K次的搜索处理，其中K是大于或等于2的正整数，在K个搜索过程之一中选择至少两个或更多个搜索脉冲，并且所选择的搜索脉冲在每个K搜索中变化 过程; 并根据预设标准从基本码本和搜索到的码本获取最佳码本。

公开(公告)号：US20110313761A1

公开(公告)日：2011-12-22

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： The present disclosure relates to a method, apparatus, and system for encoding and decoding signals. 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 decision criteria; obtaining a second-domain contribution signal according to the LP processing result and the LTP processing result when the long-term flag is a first flag; obtaining a second-domain contribution signal according to the LP processing result when the long-term flag is a second flag; converting the second-domain contribution signal into a first-domain contribution signal, and calculating a first-domain predictive residual signal; and outputting a bit stream that includes the first-domain predictive residual signal. With the present disclosure, a subsequent encoding or decoding process is performed adaptively according to the long-term flag; when the long-term flag is the second flag, it is not necessary to consider the LTP processing result, thus improving the compression performance of a codec.

摘要翻译： 本公开涉及用于对信号进行编码和解码的方法，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贡献信号; 当长期标志是第二标志时，根据LP处理结果获得第二域贡献信号; 将所述第二域贡献信号转换为第一域贡献信号，以及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。 根据本公开，根据长期标志自适应地进行后续的编码或解码处理; 当长期标志是第二个标志时，不需要考虑LTP处理结果，从而提高编解码器的压缩性能。

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。

公开(公告)号：US20100049511A1

公开(公告)日：2010-02-25

申请号：US12607723

申请日：2009-10-28

申请人： Fuwei MA ,  Dejun ZHANG

发明人： Fuwei MA ,  Dejun ZHANG

IPC分类号： G10L19/12

CPC分类号： H03M7/3082 ,  G10L19/08 ,  G10L19/10

摘要： A coding method, a decoding method, a coder, and a decoder are disclosed herein. A coding method includes: obtaining the pulse distribution, on a track, of the pulses to be encoded on the track; determining a distribution identifier for identifying the pulse distribution according to the pulse distribution; and generating a coding index that includes the distribution identifier. A decoding method includes: receiving a coding index; obtaining a distribution identifier from the coding index, wherein the distribution identifier is configured to identify the pulse distribution, on a track, of the pulses to be encoded on the track; determining the pulse distribution, on a track, of all the pulses to be encoded on the track according to the distribution identifier; and reconstructing the pulse order on the track according to the pulse distribution.

摘要翻译： 本文公开了一种编码方法，解码方法，编码器和解码器。 一种编码方法包括：在轨道上获取要编码的脉冲的脉冲分布; 根据脉冲分布确定用于识别脉冲分布的分布标识符; 以及生成包括所述分发标识符的编码索引。 解码方法包括：接收编码索引; 从所述编码索引获得分布标识符，其中所述分发标识符被配置为在轨道上识别要在所述轨道上编码的脉冲的脉冲分布; 根据分布标识符确定在轨道上要编码的所有脉冲的轨道上的脉冲分布; 并根据脉冲分布重建轨道上的脉冲顺序。

公开(公告)号：US20130075049A1

公开(公告)日：2013-03-28

申请号：US13241610

申请日：2011-09-23

申请人： Dejun ZHANG

发明人： Dejun ZHANG

IPC分类号： E06B9/386

CPC分类号： E06B9/386 ,  E06B9/304 ,  E06B9/384

摘要： Venetian Blind slats having a function of their left and right ends automatically aligned and able to be assembled on a Venetian blind includes a plurality of slat bodies respectively bored with at least one band insert hole for a connecting band of the blind to be inserted therethrough and connected with the slat body, and each band insert hole is contracted and extended toward a lengthwise edge of the slat body to form a convergent portion. Thus, when the lift cord of the blind is pulled, the slat bodies are to be actuated by a braided ladder to tilt and guided by the convergent portions of the band insert holes to adjust the positions of their left and right ends.

摘要翻译： 具有自动对准并能够组装在威尼斯百叶窗上的功能的威尼斯人盲板具有多个板条体，它们分别钻有至少一个带插入孔，用于盲孔的连接带以插入其中， 与板条主体连接，并且每个带插入孔收缩并且朝向板条主体的纵向边缘延伸以形成收敛部分。 因此，当拉动襟翼的提升帘线时，通过编织梯子致动板条主体以由带状插入孔的会聚部分倾斜和引导，以调整其左端和右端的位置。

公开(公告)号：US20100232540A1

公开(公告)日：2010-09-16

申请号：US12724066

申请日：2010-03-15

申请人： Lei MIAO ,  Fengyan QI ,  Jianfeng XU ,  Dejun ZHANG ,  Herve Marcel TADDEI ,  Qing ZHANG

发明人： Lei MIAO ,  Fengyan QI ,  Jianfeng XU ,  Dejun ZHANG ,  Herve Marcel TADDEI ,  Qing ZHANG

IPC分类号： H04L27/00 ,  H04B15/00

CPC分类号： G10L21/06 ,  G10L19/06 ,  G10L19/09 ,  G10L19/18

摘要： The present disclosure relates to coding and decoding technologies, and discloses a preprocessing method, a preprocessing apparatus, and a coding device. The preprocessing method includes: obtaining characteristic information of a current frame signal; identifying whether the current frame signal requires no coding operation of removing LTC according to the characteristic information of the current frame signal and preset information; and if identifying that the current frame signal requires no coding operation of removing LTC, performing the coding operation of removing STC for the current frame signal; and if identifying that the current frame signal requires the coding operation of removing LTC, performing the coding operations of removing both LTC and STC for the current frame signal. Through the technical solution provided herein, the coding operation of removing LTC is performed for only part of the input frame signals.

摘要翻译： 本公开涉及编码和解码技术，并且公开了一种预处理方法，预处理装置和编码装置。 预处理方法包括：获得当前帧信号的特征信息; 识别当前帧信号是否不需要根据当前帧信号和预设信息的特征信息去除LTC的编码操作; 并且如果识别出当前帧信号不需要去除LTC的编码操作，则执行去除当前帧信号的STC的编码操作; 并且如果识别当前帧信号需要去除LTC的编码操作，则执行去除当前帧信号的LTC和STC的编码操作。 通过本文提供的技术方案，仅对部分输入帧信号执行去除LTC的编码操作。