公开(公告)号：US20120213642A1

公开(公告)日：2012-08-23

申请号：US13504474

申请日：2010-10-25

申请人： Weifeng Wang ,  Baonian Jin ,  Zuohui Liu ,  Qun Dang ,  Shuai Wang

发明人： Weifeng Wang ,  Baonian Jin ,  Zuohui Liu ,  Qun Dang ,  Shuai Wang

IPC分类号： F03D1/06 ,  B21K3/04

CPC分类号： F03D1/0675 ,  F05B2240/302 ,  Y02E10/721 ,  Y10T29/49339

摘要： A segmented wind rotor blade for a wind turbine generator system and the assembling method thereof are disclosed. The segmented wind rotor blade includes a blade root section adjacent to a hub and at least one radial blade. Main girders are embedded inside both the blade root section and the radial blades. The blade root section and each radial blade are connected end to end through the main girders connecting one by one. The effects of great connection intensity and less aerodynamic loss can be realized by the segmented wind rotor blade.

摘要翻译： 公开了一种用于风力涡轮发电机系统的分段式风力叶片及其组装方法。 分段风力转子叶片包括与轮毂相邻的叶片根部部分和至少一个径向叶片。 主梁被嵌入叶片根部和径向叶片内。 叶片根部和每个径向叶片通过连接在一起的主桁架端对端连接。 分段式风力叶片可实现连接强度大，空气动力损失小的效果。

公开(公告)号：US20110261975A1

公开(公告)日：2011-10-27

申请号：US13176686

申请日：2011-07-05

申请人： Weifeng Wang ,  Caogang Yu

发明人： Weifeng Wang ,  Caogang Yu

IPC分类号： H04B15/02

CPC分类号： H04M9/08

摘要： A method and system to reduce the noise floor of a communications system is disclosed. The system may be incorporated into any device that provides binary samples from a datastream, such as a cordless telephone system. The system is configured to determine a number of bits of the binary samples that are affected by noise. The system is then able to remove the noise by setting those bits to a fixed value. The fixed value may depend on whether the sample is positive or negative. The value to set may be chosen so that the least significant bits of each sample come as close as possible to 0 for that particular numerical representation system. The system can be integrated with other known signal processing methods.

摘要翻译： 公开了一种降低通信系统的本底噪声的方法和系统。 该系统可以并入到从数据流（例如无绳电话系统）提供二进制样本的任何设备中。 该系统被配置为确定受噪声影响的二进制样本的位数。 然后，系统可以通过将这些位设置为固定值来消除噪声。 固定值可能取决于样品是正还是负。 可以选择要设置的值，使得对于该特定数值表示系统，每个样本的最低有效位尽可能接近0。 该系统可以与其他已知的信号处理方法集成。

公开(公告)号：US08699722B2

公开(公告)日：2014-04-15

申请号：US13176686

申请日：2011-07-05

申请人： Weifeng Wang ,  Caogang Yu

发明人： Weifeng Wang ,  Caogang Yu

IPC分类号： H04B15/00

CPC分类号： H04M9/08

摘要： A method and system to reduce the noise floor of a communications system is disclosed. The system may be incorporated into any device that provides binary samples from a datastream, such as a cordless telephone system. The system is configured to determine a number of bits of the binary samples that are affected by noise. The system is then able to remove the noise by setting those bits to a fixed value. The fixed value may depend on whether the sample is positive or negative. The value to set may be chosen so that the least significant bits of each sample come as close as possible to 0 for that particular numerical representation system. The system can be integrated with other known signal processing methods.

摘要翻译： 公开了一种降低通信系统的本底噪声的方法和系统。 该系统可以并入到从数据流（例如无绳电话系统）提供二进制样本的任何设备中。 该系统被配置为确定受噪声影响的二进制样本的位数。 然后，系统可以通过将这些位设置为固定值来消除噪声。 固定值可能取决于样品是正还是负。 可以选择要设置的值，使得对于该特定数值表示系统，每个样本的最低有效位尽可能接近0。 该系统可以与其他已知的信号处理方法集成。

公开(公告)号：US20090304131A1

公开(公告)日：2009-12-10

申请号：US12262106

申请日：2008-10-30

申请人： Weifeng Wang ,  Caogang Yu

发明人： Weifeng Wang ,  Caogang Yu

IPC分类号： H04B1/10

CPC分类号： H04M9/08

摘要： A method and system to reduce the noise floor of a communications system is disclosed. The system may be incorporated into any device that provides binary samples from a datastream, such as a cordless telephone system. The system is configured to determine a number of bits of the binary samples that are affected by noise. The system is then able to remove the noise by setting those bits to a fixed value. The fixed value may depend on whether the sample is positive or negative. The value to set may be chosen so that the least significant bits of each sample come as close as possible to 0 for that particular numerical representation system. The system can be integrated with other known signal processing methods.

摘要翻译： 公开了一种降低通信系统的本底噪声的方法和系统。 该系统可以并入到从数据流（例如无绳电话系统）提供二进制样本的任何设备中。 该系统被配置为确定受噪声影响的二进制样本的位数。 然后，系统可以通过将这些位设置为固定值来消除噪声。 固定值可能取决于样品是正还是负。 可以选择要设置的值，使得对于该特定数值表示系统，每个样本的最低有效位尽可能接近0。 该系统可以与其他已知的信号处理方法集成。

公开(公告)号：US20150262808A1

公开(公告)日：2015-09-17

申请号：US14215063

申请日：2014-03-17

申请人： Weifeng Wang

发明人： Weifeng Wang

IPC分类号： H01J65/04 ,  H05H1/46 ,  H05H1/48

CPC分类号： H01J65/04 ,  H01J61/025 ,  H01J61/34 ,  H01J61/545 ,  H05H1/46 ,  H05H1/48

摘要： A light source includes an enveloped chamber (32) enclosing an ionizable medium (46) and at least one laser source to provide continuous energy to the plasma (64), i.e. the excited and ionized medium, for producing high-brightness light. The envelop (34) prevents the thermal convection on the inner chamber and provides insulation to the heat transferred out of the plasma so as to generate more stable and stronger emission of light. A method for producing enhanced-brightness light includes the using of multiple chamber assemblies (178a and 178b) and at least one laser source (164) to power the plasma within each chamber assembly in sequence. A method for improving the efficiency of laser usage includes a procedure to re-focus the unabsorbed laser beam (270) back to the same plasma (272) so that more laser energy can be absorbed by the plasma to deliver increased light output.

摘要翻译： 光源包括封闭可电离介质（46）的包封室（32）和至少一个激光源，以向等离子体（64）提供持续的能量，即激发和离子化的介质，用于产生高亮度光。 信封（34）防止内室上的热对流，并为从等离子体传出的热量提供绝缘，从而产生更稳定和更强的光发射。 用于产生增强亮度光的方法包括使用多个室组件（178a和178b）和至少一个激光源（164）来依次对每个室组件内的等离子体供电。 用于提高激光使用效率的方法包括将未吸收的激光束（270）重新聚焦回相同等离子体（272）的过程，使得可以通过等离子体吸收更多的激光能量以递送增加的光输出。

公开(公告)号：US08098845B2

公开(公告)日：2012-01-17

申请号：US12262106

申请日：2008-10-30

申请人： Weifeng Wang ,  Caogang Yu

发明人： Weifeng Wang ,  Caogang Yu

IPC分类号： H04B15/00

CPC分类号： H04M9/08

摘要： A method and system to reduce the noise floor of a communications system is disclosed. The system may be incorporated into any device that provides binary samples from a datastream, such as a cordless telephone system. The system is configured to determine a number of bits of the binary samples that are affected by noise. The system is then able to remove the noise by setting those bits to a fixed value. The fixed value may depend on whether the sample is positive or negative. The value to set may be chosen so that the least significant bits of each sample come as close as possible to 0 for that particular numerical representation system. The system can be integrated with other known signal processing methods.

摘要翻译： 公开了一种降低通信系统的本底噪声的方法和系统。 该系统可以并入到从数据流（例如无绳电话系统）提供二进制样本的任何设备中。 该系统被配置为确定受噪声影响的二进制样本的位数。 然后，系统可以通过将这些位设置为固定值来消除噪声。 固定值可能取决于样品是正还是负。 可以选择要设置的值，使得对于该特定数值表示系统，每个样本的最低有效位尽可能接近0。 该系统可以与其他已知的信号处理方法集成。

公开(公告)号：US20090141869A1

公开(公告)日：2009-06-04

申请号：US12262098

申请日：2008-10-30

申请人： Weifeng Wang ,  Caogang Yu

发明人： Weifeng Wang ,  Caogang Yu

IPC分类号： H04M1/24

CPC分类号： H04M9/08

摘要： A method and system for comparing signal strength in a speakerphone system is disclosed. The system is configured to operate in a half-duplex mode, where the direction of communication is determined by comparing signals based on the transmit input signal and the receive input signal. The system estimates and compares the transmit data signal strength and the receive data signal strength. The system then controls a transmit switch and a receive switch to selectively enable transmission based on the comparison. The system also reconfigures the estimation components based on the comparison of the estimated signal strengths. In one implementation, the system estimates the signal envelopes for the inputs and the envelopes of the noise components of the inputs. The system uses the estimates to calculate the data component of the input signals by subtracting the noise envelope from the total signal. A controller compares the strength signals to determine the current state of the system. If one signal is stronger than the other, the controller switches to that state and blocks the weaker signal. The system uses the states to configure the system components.

摘要翻译： 公开了一种用于比较扬声器系统中的信号强度的方法和系统。 该系统被配置为以半双工模式操作，其中通过基于发射输入信号和接收输入信号比较信号来确定通信方向。 系统估计并比较发射数据信号强度和接收数据信号强度。 该系统然后控制发射开关和接收开关，以便基于比较选择性地启用传输。 该系统还基于估计信号强度的比较重新配置估计组件。 在一个实现中，系统估计输入的信号包络和输入的噪声分量的包络。 该系统使用估计来从总信号中减去噪声包络来计算输入信号的数据分量。 控制器比较强度信号以确定系统的当前状态。 如果一个信号比另一个信号更强，则控制器切换到该状态并阻止较弱的信号。 系统使用这些状态来配置系统组件。

公开(公告)号：US20090303980A1

公开(公告)日：2009-12-10

申请号：US12257185

申请日：2008-10-23

申请人： Weifeng Wang ,  Zhengheng Zhou ,  Caogang Yu

发明人： Weifeng Wang ,  Zhengheng Zhou ,  Caogang Yu

IPC分类号： H04B7/212 ,  H04B15/00

CPC分类号： H04L1/08 ,  H04L1/20

摘要： A method and system to conceal transmission errors in a digital wireless system is disclosed. The system is used in the uplink or the downlink of a cordless or wireless TDMA system. When there are unused data slots available, the system allocates redundant slots in a data frame to a single mobile unit. The receiving device calculates a quality of slot (QoS) score for each slot that it receives data for. After the QoS score is calculated, the system calculates a Quality of Audio Segment (QoAS) score for each individual segment. It does so by comparing the individual audio segments that were received. Segments that are identical are assigned a positive score, while segments that differ get no score. The QoAS for each segment is added to the QoS for the slot the segment was transmitted in to generate the total score. The system then chooses the segment with the highest total score. If the total score is above a specified threshold, the system outputs the segment to the next component. Otherwise, it outputs a mute segment.

摘要翻译： 公开了一种在数字无线系统中隐藏传输错误的方法和系统。 该系统用于无绳或无线TDMA系统的上行链路或下行链路。 当有未使用的数据时隙可用时，系统将数据帧中的冗余时隙分配给单个移动单元。 接收设备计算其接收数据的每个时隙的时隙（QoS）得分的质量。 在计算QoS分数之后，系统计算每个单独段的音频段（QoAS）得分的质量。 它通过比较收到的各个音频段来实现。 相同的细分被分配一个积极的分数，而不同的分数没有得分。 每个段的QoAS被添加到传输段的时隙的QoS中以产生总分。 然后系统选择总分最高的段。 如果总分高于指定的阈值，则系统将该段输出到下一个组件。 否则，它输出静音段。

公开(公告)号：US08184536B2

公开(公告)日：2012-05-22

申请号：US12257185

申请日：2008-10-23

申请人： Weifeng Wang ,  Zhengheng Zhou ,  Caogang Yu

发明人： Weifeng Wang ,  Zhengheng Zhou ,  Caogang Yu

IPC分类号： G01R31/08 ,  H04W4/00 ,  H04J3/00 ,  H04B7/212 ,  G06F11/00

CPC分类号： H04L1/08 ,  H04L1/20

摘要： When there are unused data slots available, a system allocates redundant slots in a data frame to a single mobile unit. A receiving device calculates a quality of slot (QoS) score for each slot that it receives data for. After the QoS score is calculated, the system calculates a Quality of Audio Segment (QoAS) score for each individual segment. It does so by comparing the individual audio segments that were received. Segments that are identical are assigned a positive score, while segments that differ get no score. The QoAS for each segment is added to the QoS for the slot the segment was transmitted in to generate the total score. The system then chooses the segment with the highest total score. If the total score is above a specified threshold, the system outputs the segment to the next component. Otherwise, it outputs a mute segment.

摘要翻译： 当有未使用的数据时隙可用时，系统将数据帧中的冗余时隙分配给单个移动单元。 接收装置计算其接收数据的每个时隙的时隙（QoS）分数的质量。 在计算QoS分数之后，系统计算每个单独段的音频段（QoAS）得分的质量。 它通过比较收到的各个音频段来实现。 相同的细分被分配一个积极的分数，而不同的分数没有得分。 每个段的QoAS被添加到传输段的时隙的QoS中以产生总分。 然后系统选择总分最高的段。 如果总分高于指定的阈值，则系统将该段输出到下一个组件。 否则，它输出静音段。

公开(公告)号：US08107582B2

公开(公告)日：2012-01-31

申请号：US12256397

申请日：2008-10-22

申请人： Weifeng Wang

发明人： Weifeng Wang

IPC分类号： H03D3/24

CPC分类号： H03L7/093

摘要： A method and apparatus for clock recovery in synchronous digital systems. The apparatus includes a phase frequency detector, a loop filter, a compressor, and a clock generator. The phase frequency detector generates a phase error signal based on a difference between an input clock signal and an output clock signal. The loop filter multiplies the phase error signal and filters the multiplied phase error signal. The compressor divides the loop filter output. Based on the compressor output, the clock generator generates an output clock signal is provided as a feedback signal to the phase error detector. The apparatus may also include a glitch cleaner for deglitching the input clock signal.

摘要翻译： 同步数字系统中时钟恢复的方法和装置。 该装置包括相位频率检测器，环路滤波器，压缩器和时钟发生器。 相位频率检测器基于输入时钟信号和输出时钟信号之间的差产生相位误差信号。 环路滤波器将相位误差信号相乘并对乘法相位误差信号进行滤波。 压缩机分频环路滤波器输出。 基于压缩器输出，时钟发生器产生输出时钟信号作为反馈信号提供给相位误差检测器。 该装置还可以包括用于对输入时钟信号进行去尖化的毛刺清洁器。