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11. 发明授权

US08481741B2 Preparation methods of 6 substituted amino-3 cyanoquinoline compounds and the intermediates thereof 有权
标题翻译： 6取代氨基-3-氰基喹啉化合物的制备方法及其中间体
公开(公告)号：US08481741B2
公开(公告)日：2013-07-09
申请号：US13125721
申请日：2009-10-23
申请人： Yongjun Mao , Jianfeng Li , Jin Zheng , Zheng Liu , Kai Xie , Haihong Li , Jing Shi , Ye Li , Jingshan Shen
发明人： Yongjun Mao , Jianfeng Li , Jin Zheng , Zheng Liu , Kai Xie , Haihong Li , Jing Shi , Ye Li , Jingshan Shen
IPC分类号： C07D215/38
CPC分类号： C07C229/64 , C07C237/30 , C07C255/30 , C07D215/56
摘要： The present invention relates to a method for preparing 6-substituted amino-3-cyanoquinoline compounds (compound A for short) and the intermediates thereof, more particularly, to a compound of the following formula (I), the preparation method thereof, the intermediates thereof and use thereof for preparing the compound A. The compound of the formula (I) is cyclized in the presence of an alkali to give a compound of formula A, wherein W is OH; or the compound of the formula (I) is cyclized in the presence of an alkali, and then chlorinated to give a compound of the formula A, wherein W is Cl. Compared with the known methods in the literature, the method for preparing the compound A from the compound of formula (I) according to the present invention can avoid using high-temperature condition and high boiling point solvents, and is safe and environment-friendly, mild in reaction condition, easy in operation with a high yield and high product purity.
摘要翻译：本发明涉及一种制备6-取代氨基-3-氰基喹啉化合物（简称为化合物A）的方法及其中间体，更具体地涉及下式（I）的化合物，其制备方法，中间体及其用于制备化合物A的用途。式（I）化合物在碱存在下环化，得到式A化合物，其中W为OH; 或式（I）化合物在碱的存在下环化，然后氯化，得到式A化合物，其中W为Cl。与文献中已知的方法相比，本发明的式（I）化合物制备化合物A的方法可以避免使用高温条件和高沸点溶剂，且安全环保，反应条件温和，易于操作，产率高，产品纯度高。

12. 发明申请

US20120263221A1 Method And Apparatus For Determining Signal-To-Noise Ratio 有权
标题翻译：用于确定信噪比的方法和装置
公开(公告)号：US20120263221A1
公开(公告)日：2012-10-18
申请号：US13084690
申请日：2011-04-12
申请人： Jerry Zhenyu Wang , Kumud Kumar Sanwal , Jonqyin Sun , Kai Xie , Susan M. Miller , Marc E. Shelton
发明人： Jerry Zhenyu Wang , Kumud Kumar Sanwal , Jonqyin Sun , Kai Xie , Susan M. Miller , Marc E. Shelton
IPC分类号： H04B17/00 , H04L25/08
CPC分类号： H04B1/7113 , H04B17/336
摘要： In one embodiment, the method includes despreading the received signals by applying an unused channelization code, determining noise power based on output of the despreading, and determining a signal-to-noise ratio, SIR, based on the noise power and at least one of the received signals.
摘要翻译：在一个实施例中，该方法包括通过应用未使用的信道化码来解扩所接收的信号，基于去扩频的输出来确定噪声功率，以及基于噪声功率确定信噪比SIR 接收信号。

13. 发明授权

US08184745B2 System and method of generating soft bits 失效
标题翻译：生成软比特的系统和方法
公开(公告)号：US08184745B2
公开(公告)日：2012-05-22
申请号：US12328359
申请日：2008-12-04
申请人： Kai Xie , Sattar Elyasi
发明人： Kai Xie , Sattar Elyasi
IPC分类号： H04B1/10
CPC分类号： H04L25/067 , H04L27/38
摘要： A receiver receives a received signal from a communication link, the received signal comprising a stream of symbols modulated onto a carrier, each of the stream symbols selected from a constellation of symbols to represent a plurality of encoded data bits. The receiver comprises a demodulator to produce a stream of received symbols derived from the received signal; a channel decoder to produce a received stream of data bits derived from the stream of received symbols; and a memory device to store information related to the plurality of symbols in the constellation. For each of the symbols in the stream of received symbols, the demodulator: determines which of the plurality of symbols in the constellation is a respective closest symbol to that received symbol; identifies a respective nearest neighbor symbol for each data bit represented by the closest symbol for that received symbol based on the information stored in the memory device; and for each data bit represented by the respective closest symbol for that received symbol, subtracts the distance between the respective closest symbol and that received symbol from the distance between the respective nearest neighbor symbol and that received symbol in order to produce respective soft bits for that received symbol.
摘要翻译：接收机从通信链路接收接收到的信号，所接收的信号包括调制到载波上的符号流，每个流符号从符号星座中选出以表示多个编码数据位。接收机包括解调器，用于产生从接收信号导出的接收符号流; 信道解码器，用于产生从接收到的符号流导出的接收的数据比特流; 以及存储装置，用于存储与星座中的多个符号有关的信息。对于接收符号流中的每个符号，解调器：确定星座中的多个符号中的哪个符号是与该接收符号相应的最近的符号; 基于存储在存储装置中的信息，识别由该接收符号的最近符号表示的每个数据位的相应最近邻符号; 并且对于由该接收符号的相应最近的符号表示的每个数据位，从相应的最近邻符号和该接收符号之间的距离中减去相应的最近符号与该接收符号之间的距离，以产生相应的最终相邻符号与该接收符号的相应软比特收到的符号。

14. 发明申请

US20100260281A1 JOINT CHANNEL ESTIMATION AND MODULATION DETECTION 失效
标题翻译：联合通道估计和调制检测
公开(公告)号：US20100260281A1
公开(公告)日：2010-10-14
申请号：US12422545
申请日：2009-04-13
申请人： Kai Xie , Sattar Elyasi
发明人： Kai Xie , Sattar Elyasi
IPC分类号： H04L27/00 , H04L27/18
CPC分类号： H04L27/0012 , H04L25/0226
摘要： A receiver comprises a demodulator to estimate channel impulse response and timing synchronization information for the received signal and to select a modulation technique for demodulating the received signal; and a channel decoder to produce a binary sequence from the received signal demodulated according to the selected modulation technique; wherein the demodulator: demodulates the received signal according to a first modulation technique and a second modulation technique to produce a first demodulated signal and a second demodulated signal, respectively; calculates a minimum distance between a first reconstructed signal including the training sequence and the first demodulated signal to estimate the channel impulse response and timing synchronization information; calculates a minimum distance between a second reconstructed signal including the training sequence and the second demodulated signal to estimate the channel impulse response and timing synchronization information; compares the minimum distance corresponding to the first demodulated signal with the minimum distance corresponding to the second demodulated signal; and selects the modulation technique, from among the first and second modulation techniques, that corresponds to the smaller minimum distance.
摘要翻译：接收机包括：解调器，用于估计接收信号的信道脉冲响应和定时同步信息，并选择用于解调接收信号的调制技术; 以及信道解码器，用于根据所选择的调制技术解调的接收信号产生二进制序列; 其中所述解调器：根据第一调制技术和第二调制技术解调所接收的信号，以分别产生第一解调信号和第二解调信号; 计算包括训练序列的第一重构信号与第一解调信号之间的最小距离，以估计信道脉冲响应和定时同步信息; 计算包括训练序列的第二重构信号与第二解调信号之间的最小距离，以估计信道脉冲响应和定时同步信息; 将对应于第一解调信号的最小距离与对应于第二解调信号的最小距离进行比较; 并且从第一和第二调制技术中选择对应于较小最小距离的调制技术。

15. 发明申请

US20100027717A1 Equalization of OFDM Signals Based on Time and Then Frequency Interpolation 审中-公开
标题翻译：基于时间和频率插值的OFDM信号均衡
公开(公告)号：US20100027717A1
公开(公告)日：2010-02-04
申请号：US11831364
申请日：2007-07-31
申请人： Lekun Lin , Sheng Lin , Kai Xie
发明人： Lekun Lin , Sheng Lin , Kai Xie
IPC分类号： H04L27/06
CPC分类号： H04L25/022 , H04L25/0232
摘要： Two dimensional interpolation techniques are used to compensate for time-varying channel gain H in an OFDM system. The channel gain can be reasonably estimated at various times and at various frequencies due, for example, to the use of pilot tones. These channel estimates are used to estimate the channel gain at other times and/or frequencies by two-dimensional interpolation, interpolating first with respect to time (e.g., with respect to a symbol index s) and then with respect to frequency (e.g., with respect to a sub-carrier index c).
摘要翻译：二维内插技术用于补偿OFDM系统中的时变信道增益H. 由于例如使用导频音，可以在各种时间和各种频率下合理地估计信道增益。这些信道估计用于通过二维插值来估计其他时间和/或频率处的信道增益，首先相对于时间（例如，相对于符号索引s）然后相对于频率进行内插（例如，与关于副载体索引c）。

16. 发明授权

US09672636B2 Texture masking for video quality measurement 有权
公开(公告)号：US09672636B2
公开(公告)日：2017-06-06
申请号：US14358289
申请日：2012-04-23
申请人： Fan Zhang , Kai Xie , Wenfei Jiang , Zhibo Chen
发明人： Fan Zhang , Kai Xie , Wenfei Jiang , Zhibo Chen
IPC分类号： G06T7/40 , G06T7/00 , H04N19/154 , H04N19/172 , H04N19/117 , H04N19/14 , H04N19/86 , G06T7/13 , G06T7/44 , H04N19/162
CPC分类号： G06T7/40 , G06T7/0002 , G06T7/13 , G06T7/44 , G06T2207/10016 , G06T2207/20028 , G06T2207/30168 , H04N19/117 , H04N19/14 , H04N19/154 , H04N19/162 , H04N19/172 , H04N19/865
摘要： A particular implementation decomposes an image into a structure component and a texture component. An edge strength map is calculated for the structure component, and a texture strength map is calculated for the texture component. Using the edge strength and the texture strength, texture masking weights are calculated. The stronger the texture strength is, or the weaker the edge strength is, the more distortion can be tolerated by human eyes, and thus, the smaller the texture masking weight is. The local distortions are then weighted by the texture masking weights to generate an overall distortion level or an overall quality metric.

17. 发明申请

US20140301486A1 VIDEO QUALITY ASSESSMENT CONSIDERING SCENE CUT ARTIFACTS 审中-公开
标题翻译：视频质量评估考虑场景剪裁艺术
公开(公告)号：US20140301486A1
公开(公告)日：2014-10-09
申请号：US14355975
申请日：2011-11-25
申请人： Ning Liao , Zhibo Chen , Fan Zhang , Kai Xie
发明人： Ning Liao , Zhibo Chen , Fan Zhang , Kai Xie
IPC分类号： H04N19/86 , H04N19/89 , H04N19/87
CPC分类号： H04N19/48 , H04N19/154 , H04N19/87 , H04N19/895
摘要： A particular implementation detects scene cut artifacts in a bitstream without reconstructing the video. A scene cut artifact is usually observed in the decoded video (1) when a scene cut picture in the original video is partially received or (2) when a picture refers to a lost scene cut picture in the original video. To detect scene cut artifacts, candidate scene cut pictures are first selected and scene cut artifact detection is then performed on the candidate pictures. When a block is determined to have a scene cut artifact, a lowest quality level is assigned to the block.
摘要翻译：特定的实现检测比特流中的场景切割伪像，而不重建视频。通常在解码视频（1）中观察到原始视频中的场景切换图像被部分接收或（2）当图片参考原始视频中的丢失的场景切换图像时，场景切割伪影。为了检测场景切割伪像，首先选择候选场景切割图像，然后对候选图像执行场景切割伪影检测。当确定块具有场景切割伪影时，将最低质量级别分配给块。

18. 发明申请

US20140286441A1 VIDEO QUALITY MEASUREMENT 审中-公开
标题翻译：视频质量测量
公开(公告)号：US20140286441A1
公开(公告)日：2014-09-25
申请号：US14353351
申请日：2011-11-24
申请人： Fan Zhang , Ning Liao , Kai Xie , Zhibo Chen
发明人： Fan Zhang , Ning Liao , Kai Xie , Zhibo Chen
IPC分类号： H04N19/89
CPC分类号： H04N19/00933 , H04N17/004 , H04N19/895
摘要： A particular implementation receives a bitstream and derives parameters from the bitstream. The parameters include quantization parameters, content unpredictability parameters, ratios of lost blocks, ratios of propagated blocks, error concealment distances, motion vectors, durations of freezing, and frame rates. Using these parameters, a compression distortion factor, a slicing distortion factor, and a freezing distortion factor are estimated respectively for distortions resulting from video compression, a slicing mode error concealment, and a freezing slicing mode error concealment. The distortion factors are then mapped to a composite video quality score. For applications with limited computational power, the estimation of distortion factors can be simplified. In particular, the compression distortion factor, the slicing distortion factor, and the freezing distortion factor can be predicted from quantization parameters, ratios of lost blocks, and durations of freezing, respectively.
摘要翻译：特定实现接收比特流并从比特流导出参数。参数包括量化参数，内容不可预测性参数，丢失块的比率，传播块的比率，错误隐藏距离，运动向量，冻结持续时间和帧速率。分别使用这些参数来估计压缩失真因子，切片失真因子和冻结失真因子，用于由视频压缩，切片模式错误隐藏和冷冻切片模式错误隐藏产生的失真。然后将失真因子映射到复合视频质量得分。对于具有有限计算能力的应用，可以简化失真因子的估计。具体地，压缩失真因子，切片失真因子和冻结失真因子可以分别从量化参数，丢失块的比率和冻结时间预测。

19. 发明申请

US20120263046A1 Method And Apparatus For Determining Uplink Noise Power In A Wireless Communication System 有权
标题翻译：用于确定无线通信系统中上行噪声功率的方法和装置
公开(公告)号：US20120263046A1
公开(公告)日：2012-10-18
申请号：US13084901
申请日：2011-04-12
申请人： Jerry Zhenyu Wang , Kumud Kumar Sanwal , Jonqyin Sun , Kai Xie , Susan M. Miller , Marc E. Shelton
发明人： Jerry Zhenyu Wang , Kumud Kumar Sanwal , Jonqyin Sun , Kai Xie , Susan M. Miller , Marc E. Shelton
IPC分类号： H04W24/00 , H04B7/216
CPC分类号： H04B1/7097
摘要： In one embodiment, the method includes receiving signals from user equipment, despreading the received signals by applying an unused channelization code, and determining the uplink noise power based on output of the despreading.
摘要翻译：在一个实施例中，该方法包括从用户设备接收信号，通过应用未使用的信道化码来解扩接收的信号，以及基于解扩的输出来确定上行链路噪声功率。

20. 发明申请

US20100142649A1 SYSTEM AND METHOD OF GENERATING SOFT BITS 失效
标题翻译：系统和产生软件的方法
公开(公告)号：US20100142649A1
公开(公告)日：2010-06-10
申请号：US12328359
申请日：2008-12-04
申请人： Kai Xie , Sattar Elyasi
发明人： Kai Xie , Sattar Elyasi
IPC分类号： H04B1/10 , H03D1/24
CPC分类号： H04L25/067 , H04L27/38
摘要： A receiver receives a received signal from a communication link, the received signal comprising a stream of symbols modulated onto a carrier, each of the stream symbols selected from a constellation of symbols to represent a plurality of encoded data bits. The receiver comprises a demodulator to produce a stream of received symbols derived from the received signal; a channel decoder to produce a received stream of data bits derived from the stream of received symbols; and a memory device to store information related to the plurality of symbols in the constellation. For each of the symbols in the stream of received symbols, the demodulator: determines which of the plurality of symbols in the constellation is a respective closest symbol to that received symbol; identifies a respective nearest neighbor symbol for each data bit represented by the closest symbol for that received symbol based on the information stored in the memory device; and for each data bit represented by the respective closest symbol for that received symbol, subtracts the distance between the respective closest symbol and that received symbol from the distance between the respective nearest neighbor symbol and that received symbol in order to produce respective soft bits for that received symbol.
摘要翻译：接收机从通信链路接收接收到的信号，所接收的信号包括调制到载波上的符号流，每个流符号从符号星座中选出以表示多个编码数据位。接收机包括解调器，用于产生从接收信号导出的接收符号流; 信道解码器，用于产生从接收到的符号流导出的接收的数据比特流; 以及存储装置，用于存储与星座中的多个符号有关的信息。对于接收符号流中的每个符号，解调器：确定星座中的多个符号中的哪个符号是与该接收符号相应的最近的符号; 基于存储在存储装置中的信息，识别由该接收符号的最近符号表示的每个数据位的相应最近邻符号; 并且对于由该接收符号的相应最近的符号表示的每个数据位，从相应的最近邻符号和该接收符号之间的距离中减去相应的最近符号与该接收符号之间的距离，以产生相应的最终相邻符号与该接收符号的相应软比特收到的符号。

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