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51. 发明授权

US07995688B2 Channel estimation and ICI cancellation for OFDM 有权
标题翻译： OFDM的信道估计和ICI消除
公开(公告)号：US07995688B2
公开(公告)日：2011-08-09
申请号：US12073687
申请日：2008-03-07
申请人： Zhihong Hong , Liang Zhang , Louis Thibault
发明人： Zhihong Hong , Liang Zhang , Louis Thibault
IPC分类号： H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04B1/10 , H04L1/00 , H04L25/08
CPC分类号： H04L25/03821 , H04L25/022 , H04L25/0236 , H04L25/025 , H04L25/03324 , H04L25/03828 , H04L27/2647 , H04L2025/03414 , H04L2025/0349
摘要： An iterative channel estimation and inter-carrier interference (ICI) cancellation process is provided for OFDM receivers, and more particularly for mobile OFDM receivers. The iterative process uses decision feedback to estimate both the channel gain and the ICI gains, the latter being the multiplicative gain applied to the adjacent sub-carriers. Thus the receiver performs equalization and ICI cancellation in an iterative fashion and is advantageous for estimating fast fading channels.
摘要翻译：为OFDM接收机提供迭代信道估计和载波间干扰（ICI）消除过程，更具体地针对移动OFDM接收机。迭代过程使用判决反馈来估计信道增益和ICI增益，后者是应用于相邻子载波的乘法增益。因此，接收机以迭代方式执行均衡和ICI消除，并且对于估计快速衰落信道是有利的。

52. 发明申请

US20110181398A1 Method for Adjusting the Transmission Time of a Continuous Wave and Reader Thereof 有权
标题翻译：调整连续波及其阅读器传输时间的方法
公开(公告)号：US20110181398A1
公开(公告)日：2011-07-28
申请号：US13003736
申请日：2010-09-09
申请人： Hui Li , Yong Yuan , Liang Zhang
发明人： Hui Li , Yong Yuan , Liang Zhang
IPC分类号： G06K7/01
CPC分类号： G06K7/0008 , G06K7/10217 , G06K7/10297
摘要： A reader and method for adjusting the transmission time of a continuous wave (CW), wherein the method comprises setting an initial value for a response waiting time, sending the CW to a tag after sending a command to the tag and waiting for a response from the tag, judging whether the response from the tag is received within the response waiting time. If the response from the tag is received within the response waiting time, then sending of the CW is stopped and the response waiting time is adjusted. If the response from the tag is still not received beyond the response waiting time, then sending of the CW is stopped. The time for the reader to wait for a response from the tag is far less than 20 ms. Consequently, a command failure can be found early, so as to improve the processing efficiency of an RFID system.
摘要翻译：一种用于调整连续波（CW）的传输时间的读取器和方法，其中所述方法包括设置响应等待时间的初始值，在向标签发送命令并等待响应之后将CW发送到标签标签，判断在响应等待时间内是否接收到来自标签的响应。如果在响应等待时间内接收到来自标签的响应，则停止发送CW并且调整响应等待时间。如果在响应等待时间之后仍然没有收到标签的响应，则CW的发送被停止。读者等待标签响应的时间远远少于20 ms。因此，可以及早发现命令故障，以提高RFID系统的处理效率。

53. 发明申请

US20100274559A1 Fixed Codebook Search Method and Searcher 有权
标题翻译：固定码本搜索方法和搜索器
公开(公告)号：US20100274559A1
公开(公告)日：2010-10-28
申请号：US12838229
申请日：2010-07-16
申请人： Dejun Zhang , Liang Zhang , Lixiong Li , Tinghong Wang , Yue Lang , Wenhai Wu
发明人： Dejun Zhang , Liang Zhang , Lixiong Li , Tinghong Wang , Yue Lang , Wenhai Wu
IPC分类号： G10L19/12
CPC分类号： G10L19/10 , G10L19/107
摘要： A fixed codebook search method includes initializing a counter, searching for pulses and calculating the value of a cost function Qk, initializing the counter if the Qk value increases, increasing the value of the counter if the Qk value does not increase, judging whether the value of the counter is greater than the threshold value, continuing the search process if the value of the counter is not greater than the threshold value, and ending the whole search process if the value of the counter is greater than the threshold value.
摘要翻译：固定码本搜索方法包括初始化计数器，搜索脉冲和计算成本函数Qk的值，如果Qk值增加则初始化计数器，如果Qk值不增加则增加计数器的值，判断该值是否为计数器的值大于阈值，如果计数器的值不大于阈值则继续搜索处理，如果计数器的值大于阈值则结束整个搜索处理。

54. 发明申请

US20100232709A1 ESTIMATION OF IMAGE RELATIONS FROM POINT CORRESPONDENCES BETWEEN IMAGES 失效
标题翻译：从图像之间的点对应的图像关系的估计
公开(公告)号：US20100232709A1
公开(公告)日：2010-09-16
申请号：US12633463
申请日：2009-12-08
申请人： Liang Zhang , Demin Wang , Houman Rastgar , André Vincent
发明人： Liang Zhang , Demin Wang , Houman Rastgar , André Vincent
IPC分类号： G06K9/46
CPC分类号： G06T7/73 , G06T7/77
摘要： The invention relates to a method for estimating an image relation model for two or more related images based on a plurality of point correspondences. The method includes using a weighted random sampling algorithm to repeatedly draw subsets of point correspondences for generating model estimates, evaluating said model estimates for the full plurality of the point correspondences, and updating weights associated with each of the point correspondences in the random sampling algorithm based on information obtained in said evaluating.
摘要翻译：本发明涉及一种用于基于多个点对应度来估计两个或多个相关图像的图像关系模型的方法。该方法包括使用加权随机抽样算法重复绘制点对应子集用于生成模型估计，评估所述多个点对应关系的所述模型估计，以及基于随机抽样算法中的每个点对应关系更新权重对所述评估中获得的信息。

55. 发明授权

US07578612B2 Three-phase tilting agitator for microarrays 有权
标题翻译：用于微阵列的三相倾斜搅拌器
公开(公告)号：US07578612B2
公开(公告)日：2009-08-25
申请号：US11194014
申请日：2005-07-29
申请人： Liang Zhang , Fei J. Xian , Renyuan Chen , Lianshan Zhao , Jianxing Ye , Xianhua Wang
发明人： Liang Zhang , Fei J. Xian , Renyuan Chen , Lianshan Zhao , Jianxing Ye , Xianhua Wang
IPC分类号： B01F11/00
CPC分类号： B01F15/065 , B01F11/0028
摘要： A low-cost, easy to operate, three-phase tilting agitator for microarrays, including large area microarrays, provides experimentally verified improvements in hybridization intensity and uniformity. Motion is coupled from a single motor to a sample holder via three suspension tethers. The microarrays may be immersed in a water bath during agitation to maintain a temperature for the hybridization reaction. The use of traditional cover slips for the microarrays minimizes the volume requirement for target sample solution.
摘要翻译：用于微阵列的低成本，易于操作的三相倾斜搅拌器，包括大面积微阵列，提供实验验证的杂交强度和均匀性的改进。运动通过三个悬挂系绳从单个电机耦合到样品架。在搅拌期间将微阵列浸入水浴中以保持杂交反应的温度。对于微阵列使用传统的盖板可以最大限度地减少目标样品溶液的体积需求。

56. 发明申请

US20090167443A1 Digitally compensated highly stable holdover clock generation techniques using adaptive filtering 有权
标题翻译：使用自适应滤波的数字补偿高度稳定的保持时钟生成技术
公开(公告)号：US20090167443A1
公开(公告)日：2009-07-02
申请号：US12006368
申请日：2007-12-31
申请人： Xin Liu , Liang Zhang , Yong Wang
发明人： Xin Liu , Liang Zhang , Yong Wang
IPC分类号： H03L7/099 , H03L7/00 , H03L7/085
CPC分类号： H03L7/093 , H03L1/02 , H03L7/099 , H03L7/0996 , H03L7/235
摘要： A system and method for generating a highly stable holdover clock utilizing an integrated circuit and an external OCXO is presented. The integrated circuit comprises an input reference clock receiver, a phase and frequency detector that generates an error signal between the input reference clock signal and a feedback clock signal, a data storage block that stores model parameters to predict frequency variations of the OCXO, an adaptive filtering module that includes a digital loop filter and algorithms for updating the model parameters and predicting frequency variations based on the model, a switch that enables the system to operate in normal or holdover mode, a digitally controlled oscillator, and a feedback divider.
摘要翻译：提出了利用集成电路和外部OCXO产生高度稳定的保持时钟的系统和方法。集成电路包括输入参考时钟接收器，相位和频率检测器，其在输入参考时钟信号和反馈时钟信号之间产生误差信号，存储模型参数以预测OCXO的频率变化的数据存储块，自适应滤波模块，其包括数字环路滤波器和用于更新模型参数并且基于该模型预测频率变化的算法，使得系统能够在正常或保持模式下操作的开关，数字控制振荡器和反馈分频器的开关。

57. 发明申请

US20090086872A1 Method for binary clock and data recovery for fast acquisition and small tracking error 有权
标题翻译：用于快速采集和小跟踪误差的二进制时钟和数据恢复方法
公开(公告)号：US20090086872A1
公开(公告)日：2009-04-02
申请号：US11906004
申请日：2007-09-28
申请人： Xin Liu , Liang Zhang , Yong Wang
发明人： Xin Liu , Liang Zhang , Yong Wang
IPC分类号： H04L7/00 , H04L25/00
CPC分类号： H04L7/033 , H03L7/0814 , H03L7/087 , H03L7/091 , H03L7/093 , H03L2207/50 , H04L7/0008 , H04L7/0337 , H04L7/10
摘要： A novel method and system for clock and data recovery in high speed serial transceiver applications allowing for fast bit lock acquisition and small data tracking error is presented. The clock and data recovery method utilizes a variable bandwidth loop filter to generate a phase adjustment signal used by a phase interpolator in generating a clock signal at the same frequency and phase as the incoming digital data stream. The loop filter bandwidth may be adjusted to correspond with a plurality of clock and data recovery operating modes. In particular, the filter bandwidth may be set to either a high or a low value depending on whether the phase difference between the recovered clock signal and the incoming digital data stream is above or below a programmed threshold value.
摘要翻译：提出了一种用于高速串行收发器应用中的时钟和数据恢复的新型方法和系统，其允许快速位锁定和小数据跟踪误差。时钟和数据恢复方法利用可变带宽环路滤波器来产生由相位内插器用于产生与输入数字数据流相同频率和相位的时钟信号的相位调整信号。可以将环路滤波器带宽调整为与多个时钟和数据恢复操作模式相对应。特别地，取决于恢复的时钟信号和输入的数字数据流之间的相位差是否高于或低于编程的阈值，滤波器带宽可以被设置为高或低的值。

58. 发明申请

US20080261201A1 Methods and compounds to alter virus infection 审中-公开
标题翻译：改变病毒感染的方法和化合物
公开(公告)号：US20080261201A1
公开(公告)日：2008-10-23
申请号：US11890787
申请日：2007-08-07
申请人： John F. Engelhardt , Liang Zhang
发明人： John F. Engelhardt , Liang Zhang
IPC分类号： C12Q1/70 , C12N5/06 , C12N5/08
CPC分类号： G01N33/573 , A01K2217/075 , A01K2227/105 , A01K2267/0337 , C12N9/0036 , G01N33/502 , G01N33/566 , G01N2333/015 , G01N2333/075 , G01N2333/90209
摘要： The invention provides a method to identify an agent that alters parvovirus transduction of mammalian cells. Also provided is a method to enhance transgene expression in a mammalian cell, as well as a method to identify an agent that alters NADPH oxidase activity in parvovirus transduced mammalian cells.
摘要翻译：本发明提供了鉴定改变哺乳动物细胞的细小病毒转导的药剂的方法。还提供了增强哺乳动物细胞中转基因表达的方法，以及鉴定改变细小病毒转导的哺乳动物细胞中NADPH氧化酶活性的试剂的方法。

59. 发明授权

US07418144B2 Curved wavelet transform for image and video compression 失效
标题翻译：用于图像和视频压缩的弯曲小波变换
公开(公告)号：US07418144B2
公开(公告)日：2008-08-26
申请号：US11068160
申请日：2005-03-01
申请人： Demin Wang , Liang Zhang , Andre Vincent
发明人： Demin Wang , Liang Zhang , Andre Vincent
IPC分类号： G06K9/36 , G06K9/46
CPC分类号： H04N19/63 , H04N19/124 , H04N19/13 , H04N19/61 , H04N19/619
摘要： A curved wavelet transform and a related image/video compression system are disclosed. The curved wavelet transform (CWT) is carried out by applying one-dimensional (1-D) wavelet filters along curves, rather than along only horizontal and vertical directions. The image/video compression system includes a curve determination unit, a curved wavelet transform unit, a wavelet coefficient quantization unit, a wavelet coefficient coding unit, and a curve coding unit. The quantization and coding of the wavelet coefficients are related to the curves. In one embodiment, recursive wavelet filters are used for inverse wavelet decomposition. The system provides higher compression capability than conventional wavelet-based image compression systems.
摘要翻译：公开了一种弯曲小波变换和相关图像/视频压缩系统。曲线小波变换（CWT）通过沿着曲线应用一维（1-D）小波滤波器而不是沿着水平和垂直方向进行。图像/视频压缩系统包括曲线确定单元，弯曲小波变换单元，小波系数量化单元，小波系数编码单元和曲线编码单元。小波系数的量化和编码与曲线相关。在一个实施例中，递归小波滤波器用于逆小波分解。该系统比传统的基于小波的图像压缩系统提供更高的压缩能力。

60. 发明申请

US20050202795A1 Method for synchronizing or decoding a baseband signal 审中-公开
标题翻译：用于同步或解码基带信号的方法
公开(公告)号：US20050202795A1
公开(公告)日：2005-09-15
申请号：US10422321
申请日：2003-04-24
申请人： YaFei Tian , Chenyang Yang , Feng Wu , Liang Zhang , Liang Li , Noi Banavong
发明人： YaFei Tian , Chenyang Yang , Feng Wu , Liang Zhang , Liang Li , Noi Banavong
IPC分类号： H04L27/00 , H04B1/16 , H04B1/06 , H04B7/00
CPC分类号： H04L27/00 , H04W4/18 , H04W56/00 , H04W88/06
摘要： A baseband process operating on a receiver in a communication system, such as an 802.15.4 communication system, is provided. The baseband process has a set of predefined reference signals, with each reference signal associated with a possible characteristic in the baseband signal. The baseband process receives a degraded baseband signal, and preprocesses the baseband signal to reduce or remove the effects of the degradation. The preprocessed baseband signal is correlated with reference signals from the set of predefined reference signals, and the reference signal with the best correlation is identified. By identifying the best correlating reference signal, the baseband process is able to identify a characteristic of the baseband signal. In one example of the baseband process, the baseband signal is preprocessed by auto-correlating the degraded baseband signal with a delayed version of the degraded baseband signal. The preprocessed baseband signal is then correlated against a set of sync reference signals to find a sync offset for the baseband signal. When synchronized with the baseband signal, the baseband process may be correlated against a set of symbol reference signals to decode sequential symbols in the baseband signal.
摘要翻译：提供了在诸如802.15.4通信系统的通信系统中的接收机上操作的基带处理。基带处理具有一组预定义的参考信号，每个参考信号与基带信号中的可能特性相关联。基带处理接收降级的基带信号，并预处理基带信号以减少或消除降级的影响。预处理的基带信号与来自预定参考信号的参考信号相关，并且识别具有最佳相关性的参考信号。通过识别最佳相关参考信号，基带处理能够识别基带信号的特性。在基带处理的一个示例中，通过将劣化的基带信号与降级的基带信号的延迟版本自相关来对基带信号进行预处理。然后将预处理的基带信号与一组同步参考信号相关，以找到基带信号的同步偏移。当与基带信号同步时，基带处理可以与一组符号参考信号相关，以对基带信号中的顺序符号进行解码。

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