公开(公告)号：US20110069028A1

公开(公告)日：2011-03-24

申请号：US12887894

申请日：2010-09-22

申请人： Lei LI ,  Bangjun He ,  Yun Yang

发明人： Lei LI ,  Bangjun He ,  Yun Yang

IPC分类号： G06F3/041

CPC分类号： G06F3/0416 ,  G06F3/04883

摘要： A method for detecting gestures on a touchpad is presented. The method comprises receiving a first contact signal induced by a first contact with the touchpad, detecting a drop in the first contact signal induced by a first lift off the touchpad, recording a first time interval between receipt and drop in the first contact signal, comparing the first time interval to a first reference and a second reference, wherein the first reference is less than the second reference, and the first reference and second reference are predefined, and outputting one of a single-click signal, double-click signal or drag signal.

摘要翻译： 提出了一种用于检测触摸板上手势的方法。 该方法包括接收由与触摸板的第一接触引起的第一接触信号，检测由第一次从触摸板提起而引起的第一接触信号的下降，记录第一接触信号的接收和下降之间的第一时间间隔，比较 所述第一参考和第二参考的第一时间间隔，其中所述第一参考小于所述第二参考，并且所述第一参考和第二参考是预定义的，并且输出单击信号，双击信号或拖动中的一个 信号。

公开(公告)号：US20120051742A1

公开(公告)日：2012-03-01

申请号：US13221312

申请日：2011-08-30

申请人： Lei LI ,  Zhenning TAO ,  Takeshi HOSHIDA

发明人： Lei LI ,  Zhenning TAO ,  Takeshi HOSHIDA

IPC分类号： H04B10/08 ,  H04B10/04 ,  H04B10/00 ,  H04B10/06

CPC分类号： H04B10/0795 ,  H04B10/255 ,  H04B10/6163

摘要： The present invention provides apparatus for self-phase modulation noise calculation, apparatus for self-phase modulation noise elimination and optical coherent receiver. The apparatus for calculation comprises: a signal receiver to receive an input signal; a calculator connected to the signal receiver to calculate a self-phase modulation noise at the current instant by using the signal powers of an input signal waveform at the current instant and at several sampling instants adjacent to the current instant. The embodiments of the present invention calculates the self-phase modulation noise at a certain instant by using the signal powers at a plurality of digital sampling periods before and after this instant, and when the apparatus is used to calculate the self-phase modulation noise of each of the sub-spans in an optical fiber transmission link, in case that the calculation precision is ensured, the granularity of the sub-spans may be reduced, thereby lowering the complexity of the calculation.

摘要翻译： 本发明提供了用于自相位调制噪声计算的装置，用于自相位调制噪声消除的装置和光学相干接收机。 该计算装置包括：接收输入信号的信号接收器; 连接到信号接收器的计算器，通过使用当前时刻的输入信号波形的信号功率和与当前时刻相邻的几个采样时刻来计算当前时刻的自相位调制噪声。 本发明的实施例通过在该时刻之前和之后的多个数字采样周期中使用信号功率来计算某一时刻的自相位调制噪声，并且当该装置用于计算自相位调制噪声的自相位调制噪声 在光纤传输链路中的每个子跨度，在确保计算精度的情况下，可能减小子跨度的粒度，从而降低计算的复杂度。

公开(公告)号：US20110064169A1

公开(公告)日：2011-03-17

申请号：US12835214

申请日：2010-07-13

申请人： Lei LI ,  Zhenning Tao ,  Ling Liu ,  Shoichiro Oda

发明人： Lei LI ,  Zhenning Tao ,  Ling Liu ,  Shoichiro Oda

IPC分类号： H04L27/06

CPC分类号： H04B10/6165 ,  H04B10/61

摘要： This invention relates to an apparatus and a method for controlling a filter coefficient. The filter coefficient control apparatus controls a coefficient of a filter of a phase recovering apparatus, and comprises a phase offset obtaining means, for obtaining a phase offset between a carrier and a local oscillation; an autocorrelation calculating means, for calculating an autocorrelation and related statistics of the phase offset; and a filter coefficient determining means, for determining the coefficient of the filter in accordance with the autocorrelation and related statistics.

摘要翻译： 本发明涉及一种用于控制滤波器系数的装置和方法。 滤波器系数控制装置控制相位恢复装置的滤波器的系数，并且包括用于获得载波和本地振荡之间的相位偏移的相位偏移获取装置; 自相关计算装置，用于计算相位偏移的自相关和相关统计; 以及滤波器系数确定装置，用于根据自相关和相关统计确定滤波器的系数。

公开(公告)号：US20190091695A1

公开(公告)日：2019-03-28

申请号：US16086364

申请日：2017-03-22

申请人： Lei LI ,  Li-Ju WANG ,  Rongrong SUN ,  Yu-Chung CHANG ,  Washington State University

发明人： Lei LI ,  Li-Ju WANG ,  Rongrong SUN ,  Yu-Chung CHANG

IPC分类号： B01L9/00 ,  G01N21/25 ,  G01N21/64 ,  G01N35/00

摘要： The methods and configurations herein provide for analysis of microplate based assays. Certain aspects include: an optical illumination panel; a plurality of sample wells configured to receive light from the optical illumination panel, and wherein the plurality of sample wells is configured with a first field of view; at least one aperture array configured to isolate directed light therethrough the plurality of sample wells; at least one optical array configured to receive optical information from the plurality of sample platforms, wherein the at least optical array comprises an array of individual microprisms configured with equal apex angles at distal equidistances along a row, wherein the individual microprism apex angles decrease toward the center of the row culminating in at least one flat surface along a center portion of the row; and a detector configured to capture the optical information with a second field of view as provided by the at least one optical array.

公开(公告)号：US20160007997A1

公开(公告)日：2016-01-14

申请号：US14331207

申请日：2014-07-14

申请人： Chengxiong GU ,  Lei LI ,  Yang Yu

发明人： Chengxiong GU ,  Lei LI ,  Yang Yu

IPC分类号： A61B17/11 ,  A61M1/36

CPC分类号： A61F2/07 ,  A61B2017/1107

摘要： A bridge vessels-proximal anastomosis supporting device for coronary artery bypass grafting and a manufacturing method thereof. The bridge vessels-proximal anastomosis supporting device for the coronary artery bypass grafting comprises an arc-shaped body, an elliptical bottom edge is arranged at the lower part of the arc-shaped body, a circular port is arranged at the right side of the arc-shaped body, a notch is formed between the rightmost end of the bottom edge and the lowermost end of the port, the diameter R of the circular port is 4 mm, 5 mm, 6 mm, 7 mm or 8 mm, the major axis a of the elliptical bottom edge is 13 mm, and the minor axis of the elliptical bottom edge is the same as R. The arc-shaped body is formed by weaving titanium-nickel alloy wires. The bottom edge and the port are provided with a supporting edge made of a heavy metal material, and the supporting edge is fixed with the wires through medical non-absorbable sutures in a wrapping manner.

摘要翻译： 用于冠状动脉旁路移植术的桥血管近端吻合支撑装置及其制造方法。 用于冠状动脉旁路移植的桥血管近端吻合支撑装置包括弧形体，弧形体的下部布置有椭圆形底部边缘，圆弧形端口布置在弧形的右侧 在底部边缘的最右端和端口的最下端之间形成有凹口，圆形孔的直径R为4mm，5mm，6mm，7mm或8mm，长轴 椭圆底缘的a为13mm，椭圆底缘的短轴与R相同。弧形体通过编织钛镍合金线而形成。 底边缘和端口设置有由重金属材料制成的支撑边缘，并且支撑边缘通过医疗非吸收性缝合线以包裹方式与电线固定。

公开(公告)号：US20120041609A1

公开(公告)日：2012-02-16

申请号：US13086248

申请日：2011-04-13

申请人： Lifu XIN ,  Xuan CAI ,  Lei LI

发明人： Lifu XIN ,  Xuan CAI ,  Lei LI

IPC分类号： G06F1/28

CPC分类号： F16N29/02 ,  F03D7/0224 ,  F03D80/70 ,  F05B2260/79 ,  F05B2260/98 ,  F16C2360/31 ,  F16N2210/025 ,  F16N2250/00 ,  F16N2250/42 ,  Y02E10/723

摘要： The present invention provides a control method of an automatic lubrication system of a variable-pitch bearing used for a wind turbine generator system (WTGS). The method comprises the following steps: calculating a current friction factor of the variable-pitch bearing using a current friction moment of the variable-pitch bearing of WTGS; determining a demand of lubrication grease according to the operation power of WTGS and the current friction factor of the variable-pitch bearing, wherein the friction factor of the variable-pitch bearing to be obtained is taken as an objective; customizing a lubrication control strategy according to the demand of lubrication grease, wherein a predetermined energy production of WTGS is taken as an objective; calculating lubrication target regions according to an average wind speed and a power of an wind turbine, the lubrication target regions being operation regions of the tooth surfaces of the variable-pitch bearing; meanwhile, calculating an angle difference between grease discharge points of a lubrication pinion and the lubrication target regions; moving the angle difference by an actuator of a variable-pitch system under the control of the main controller of the WTGS, and carrying out automatic lubrication according to the control strategy. The present invention has the advantage that good lubrication is realized for the variable-pitch bearing and variable-pitch tooth surfaces.

摘要翻译： 本发明提供了一种用于风力发电机系统（WTGS）的可变节距轴承的自动润滑系统的控制方法。 该方法包括以下步骤：使用WTGS的可变节距轴承的当前摩擦力矩计算可变节距轴承的当前摩擦系数; 根据WTGS的操作功率和可变节距轴承的当前摩擦系数确定润滑脂的需求，其中将要获得的可变节距轴承的摩擦系数作为目的; 根据润滑脂的需求定制润滑控制策略，其中以WTGS的预定能量产生为目标; 根据平均风速和风力涡轮机的功率来计算润滑目标区域，所述润滑目标区域是所述可变俯仰轴承的齿面的操作区域; 同时计算润滑小齿轮的润滑脂排出点与润滑目标区域之间的角度差; 在WTGS主控制器的控制下通过变桨距系统的执行机构移动角度差，根据控制策略进行自动润滑。 本发明的优点在于可变节距轴承和可变节距齿面实现良好的润滑。

公开(公告)号：US20120029350A1

公开(公告)日：2012-02-02

申请号：US13102456

申请日：2011-05-06

申请人： Lei LI ,  Yongqiang DONG

发明人： Lei LI ,  Yongqiang DONG

IPC分类号： A61B8/06

CPC分类号： A61B8/06 ,  A61B8/5238

摘要： Methods and systems for pulse scanning and simultaneously displaying a blood flow image and a B-mode image are disclosed.

摘要翻译： 公开了用于脉冲扫描并同时显示血流图像和B模式图像的方法和系统。

公开(公告)号：US20100092168A1

公开(公告)日：2010-04-15

申请号：US12567245

申请日：2009-09-25

申请人： Lei LI ,  Zhenning TAO ,  Hisao NAKASHIMA

发明人： Lei LI ,  Zhenning TAO ,  Hisao NAKASHIMA

IPC分类号： H04B10/08

CPC分类号： H04B10/611 ,  H04B10/0795 ,  H04B10/60

摘要： The present invention relates to an optical coherent receiver and an apparatus for and a method of monitoring performance thereof. The apparatus for monitoring performance of the optical coherent receiver makes use of a first signal and a second signal from the optical coherent receiver to monitor performance of the optical coherent receiver, and comprises a first subtracter, for subtracting the second signal from the first signal to obtain a first subtraction result; a squarer, for obtaining a square of the first subtraction result; a delayer, for delaying the first subtraction result; a multiplier, for multiplying the first subtraction result with the delayed first subtraction result; and a second subtracter, for subtracting the result of the multiplier from the result of the squarer.

摘要翻译： 本发明涉及一种光学相干接收机及其监视性能的装置和方法。 用于监视光学相干接收机的性能的装置利用来自光学相干接收机的第一信号和第二信号来监测光学相干接收机的性能，并且包括第一减法器，用于从第一信号减去第二信号 获得第一个减法结果; 平方，用于获得第一减法结果的平方; 延迟器，用于延迟第一减法结果; 乘法器，用于将第一减法结果与延迟的第一减法结果相乘; 和第二减法器，用于从平方器的结果中减去乘数的结果。

公开(公告)号：US20100002810A1

公开(公告)日：2010-01-07

申请号：US12495834

申请日：2009-07-01

申请人： Lei LI ,  Zhenning Tao ,  Hisao Nakashima

发明人： Lei LI ,  Zhenning Tao ,  Hisao Nakashima

IPC分类号： H04L27/227

CPC分类号： H04B10/611 ,  H04B10/60 ,  H04B10/6165 ,  H04B10/697

摘要： The invention provides an average length adaptive optimization method and apparatus. An adaptive optimization method for the average length used for phase recovery comprising: a residual phase difference calculation step, for receiving a current phase of a digital symbol obtained by phase recovery and a data modulation phase of the digital symbol obtained by data recovery, and calculating a residual phase difference of the digital symbol, which is a difference between the current phase and the data modulation phase of the digital symbol; a residual phase difference auto-correlation value calculation step, for calculating an auto-correlation value of the residual phase difference with displacement m, wherein −10≦m≦10, and m is an integral; an optimization step, for optimizing the average length based on the residual phase difference auto-correlation value.

摘要翻译： 本发明提供一种平均长度自适应优化方法和装置。 一种用于相位恢复的平均长度的自适应优化方法，包括：残差相位差计算步骤，用于接收通过相位恢复获得的数字符号的当前相位和通过数据恢复获得的数字符号的数据调制阶段，以及计算 数字符号的剩余相位差，其是数字符号的当前相位和数据调制相位之间的差; 剩余相位差自相关值计算步骤，用于计算残留相位差与位移m的自相关值，其中-10 <= m <= 10，m是积分; 优化步骤，根据残差相位自相关值优化平均长度。

公开(公告)号：US20090245815A1

公开(公告)日：2009-10-01

申请号：US12320740

申请日：2009-02-03

申请人： Huijian ZHANG ,  Lei LI ,  Zhenning TAO ,  Hisao NAKASHIMA

发明人： Huijian ZHANG ,  Lei LI ,  Zhenning TAO ,  Hisao NAKASHIMA

IPC分类号： H04B10/06

CPC分类号： H04B10/6161 ,  H04B10/61 ,  H04B10/6164 ,  H04B10/63

摘要： The present invention discloses a frequency offset detecting apparatus and method for use in a digital coherent optical receiver. The digital coherent optical receiver comprises: a front-end processing section for generating a digital baseband electric signal; an equalizer for performing equalized filtering on the digital baseband electric signal; and the frequency offset detecting apparatus for detecting frequency offset contained in the digital baseband electric signal or frequency offset contained in a signal outputted by the equalizer; wherein the frequency offset detecting apparatus comprises an argument difference obtaining unit, a first subtracter, a second subtracter, a quantizer and an averager, of which the argument difference obtaining unit obtains an argument difference of adjacent symbols in a signal inputted therein; the first subtracter subtracts an output of the averager from the argument difference obtained by the argument difference obtaining unit; the quantizer performs uniform quantization with predetermined intervals on an output of the first subtracter; the second subtracter subtracts an output of the quantizer from the argument difference obtained by the argument difference obtaining unit; and the averager averages an output of the second subtracter.

摘要翻译： 本发明公开了一种在数字相干光接收机中使用的频偏检测装置和方法。 数字相干光接收机包括：前端处理部分，用于产生数字基带电信号; 均衡器，用于对数字基带电信号进行均衡滤波; 以及频率偏移检测装置，用于检测包含在由均衡器输出的信号中的数字基带电信号或频率偏移中的频率偏移; 其中，所述频偏检测装置包括自变量差分获取单元，第一减法器，第二减法器，量化器和平均器，其中所述变差差获取单元获取其中输入的信号中的相邻符号的自变量差; 所述第一减法器从由所述变元差分获取单元获得的自变量差中减去所述平均器的输出; 量化器在第一减法器的输出上以预定间隔执行均匀量化; 所述第二减法器根据由所述自变量差获取单元获得的参数差减去所述量化器的输出; 并且平均器对第二减法器的输出进行平均。