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1. 发明授权

US09952565B2 Networked, channelized power distribution, monitor and control for security and life safety applications 有权
公开(公告)号：US09952565B2
公开(公告)日：2018-04-24
申请号：US13859566
申请日：2013-04-09
申请人： Guang Liu , Joseph M. Holland , Larry L. Ye , John F. Olliver
发明人： Guang Liu , Joseph M. Holland , Larry L. Ye , John F. Olliver
IPC分类号： G06F1/00 , G05B13/02 , G06F11/07 , G05B15/02 , G06F11/20 , G05B9/02 , G07C9/00
CPC分类号： G05B13/02 , G05B9/02 , G05B15/02 , G06F11/0766 , G06F11/0796 , G06F11/2015 , G07C9/00571
摘要： An apparatus includes a plurality of power distribution control output channels operatively coupled to at least one power source, and comprising an access control input from an access control device, and a control output for a controlled device. A controller receives an access control input signal for each power distribution control output channel and provides a control signal to each power distribution control output channel such that each power distribution control output channel provides a control output signal according to requirements of a corresponding controlled device. The controller can individually isolate one or more power distribution control output channels from the at least one power source such that the control output signal is removed from the corresponding controlled device, while any other power distribution control output channels coupled to the same power source continues to operate without interruption.

2. 发明授权

US08275142B2 Acoustic echo cancellation system 有权
标题翻译：声回声消除系统
公开(公告)号：US08275142B2
公开(公告)日：2012-09-25
申请号：US12044048
申请日：2008-03-07
申请人： Qing-Guang Liu , Wilson Or
发明人： Qing-Guang Liu , Wilson Or
IPC分类号： H03B29/00 , H04B3/20 , H04B15/00 , H04M9/08
CPC分类号： H04M9/082
摘要： An embodiment of an acoustic echo cancellation system is disclosed. The system comprises an echo cancellation unit, a second filter and a subtraction unit. The echo cancellation unit comprises a first attenuator, a first filter and a first subtractor. The first attenuator has a first down-scaling factor for attenuating a first signal. The first filter generates a first echo signal estimate based on the attenuated first signal. The first subtractor generates a third signal by subtracting the first echo signal estimate from a second signal. The second filter generates a second echo signal estimate based on the first signal. The subtraction unit subtracts the second echo signal estimate from the third signal.
摘要翻译：公开了一种声学回声消除系统的实施例。该系统包括回波消除单元，第二滤波器和减法单元。回波消除单元包括第一衰减器，第一滤波器和第一减法器。第一衰减器具有用于衰减第一信号的第一降档因子。第一滤波器基于衰减的第一信号产生第一回波信号估计。第一减法器通过从第二信号中减去第一回波信号估计来产生第三信号。第二滤波器基于第一信号产生第二回波信号估计。减法单元从第三信号中减去第二回波信号估计。

3. 发明申请

US20120120840A1 Adjusting Method for Downlink Modulation Coding Mode and Multiple-Input-Multiple-Output Mode and Device 审中-公开
标题翻译：下行调制编码模式和多输入多输出模式和设备的调整方法
公开(公告)号：US20120120840A1
公开(公告)日：2012-05-17
申请号：US13383280
申请日：2010-06-11
申请人： Guang Liu
发明人： Guang Liu
IPC分类号： H04W24/00 , H04L12/26 , H04W92/00
CPC分类号： H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/1812 , Y02D50/10
摘要： An adjustment method for downlink modulation and coding scheme and multiple-input-multiple-output mode (MIMO) and a base station thereof are provided. The method comprises: establishing a corresponding relationship table of data transmission rates and combinations of said downlink scheme and MIMO; determining maximal available modulation and coding scheme according to the downlink carrier-to-interference-and-noise-ratio (CINR) reported by a terminal, switching current downlink scheme to the maximal available scheme when the current downlink scheme is greater than the maximal available scheme; collecting the total number of data packets and the number of valid data packets in the data packets in every report period; and adjusting the current downlink scheme and MIMO according to the maximal available scheme and said table when determining that the current downlink scheme and MIMO are not suitable for the current channel conditions in accordance with the total number of data packets and the number of valid data packets.
摘要翻译：提供了一种用于下行链路调制和编码方案和多输入多输出模式（MIMO）及其基站的调整方法。该方法包括：建立数据传输速率和所述下行方案与MIMO的组合的对应关系表; 根据由终端报告的下行链路载波与干扰和噪声比（CINR）确定最大可用调制和编码方案，当当前下行链路方案大于最大可用时切换当前下行链路方案为最大可用方案方案; 在每个报告期内收集数据包的总数和数据包的有效数据包数; 以及当确定当前下行链路方案和MIMO根据数据分组的总数和有效数据分组的数量而不适合于当前信道条件时，根据最大可用方案和所述表调整当前下行链路方案和MIMO 。

4. 发明申请

US20110165321A1 Continuous process for producing spacer-modified nano Graphene electrodes for supercapacitors 有权
标题翻译：用于制造用于超级电容器的间隔改性纳米石墨烯电极的连续工艺
公开(公告)号：US20110165321A1
公开(公告)日：2011-07-07
申请号：US12655744
申请日：2010-01-07
申请人： Aruna Zhamu , Zenning Yu , Chen-guang Liu , Bor Z. Jang
发明人： Aruna Zhamu , Zenning Yu , Chen-guang Liu , Bor Z. Jang
IPC分类号： B05D5/12
CPC分类号： H01G9/058 , B82Y30/00 , B82Y40/00 , C01B32/194 , C01B2204/04 , C01B2204/32 , H01G11/36 , H01G11/46 , Y02E60/13
摘要： A specific embodiment of the present invention is a process for continuously producing a porous solid film of spacer-modified nano graphene platelets for supercapacitor electrode applications. This process comprises: (a) dissolving a precursor material in a solvent to form a precursor solution and dispersing multiple nano graphene platelets into the solution to form a suspension; (b) continuously delivering and forming the suspension into a layer of solid film composed of precursor material-coated graphene platelets overlapping one another, and removing the solvent from the solid film (e.g., analogous to a paper-making, mat-making, or web-making procedure); (c) continuously converting the precursor material into nodules bonded to surfaces of graphene platelets to form a porous solid film composed of spacer-modified graphene platelets; and (d) continuously collecting the porous solid film on a collector (e.g., a winding roller). The roll of porous solid film (mat, paper, or web) can then be cut into pieces for used as supercapacitor electrodes.
摘要翻译：本发明的具体实施方案是连续制备用于超级电容器电极应用的间隔物改性的纳米石墨烯片晶的多孔固体膜的方法。该方法包括：（a）将前体材料溶解在溶剂中以形成前体溶液并将多个纳米石墨烯片晶分散到溶液中以形成悬浮液; （b）将悬浮液连续输送并形成为由彼此重叠的前体材料涂覆的石墨烯片晶组成的固体膜层，以及从固体膜中除去溶剂（例如，类似于造纸，制毡或网络制作程序）; （c）将前体材料连续转化为结合到石墨烯片晶表面的结节，以形成由间隔改性石墨烯片晶组成的多孔固体膜; 和（d）在收集器（例如卷绕辊）上连续收集多孔固体膜。然后可以将多孔固体膜（垫，纸或网）卷切成片以用作超级电容器电极。

5. 发明授权

US07924008B2 Vibrationally decoupled patient table for use in magnetic resonance system 有权
标题翻译：用于磁共振系统的振动解耦患者台
公开(公告)号：US07924008B2
公开(公告)日：2011-04-12
申请号：US12321908
申请日：2009-01-27
申请人： Ke Cheng Liu , Xiao Guang Liu
发明人： Ke Cheng Liu , Xiao Guang Liu
IPC分类号： G01V3/00
CPC分类号： A61B5/055 , A61B5/704 , G01R33/307 , G01R33/56341 , G01R33/56509
摘要： The present utility model discloses a patient table for a magnetic resonance system, said magnetic resonance system also comprises a body coil, and said patient table comprises a table board and supporting means for supporting said table board, which table board is located in said body coil, and said supporting means supports said table board in such a way that the table board has no contact with said body coil. By using said patient table according to the present utility model, it is possible to eliminate the vibration of the table board caused by the vibration of a gradient coil, thus improving the imaging quality.
摘要翻译：本实用新型公开了一种用于磁共振系统的患者台，所述磁共振系统还包括体线圈，并且所述患者台包括台板和用于支撑所述台板的支撑装置，所述台板位于所述体线圈中并且所述支撑装置以这样的方式支撑所述台板，使得台板与所述主体线圈没有接触。通过使用根据本实用新型的所述患者台，可以消除由梯度线圈的振动引起的台板的振动，从而提高成像质量。

6. 发明申请

US20100111024A1 METHOD AND APPARATUS FOR FEEDING BACK AND RECEIVING ACKNOWLEDGEMENT INFORMATION OF SEMI-PERSISTENT SCHEDULING DATA PACKETS 有权
标题翻译：用于提取和接收半密度调度数据包的确认信息的方法和装置
公开(公告)号：US20100111024A1
公开(公告)日：2010-05-06
申请号：US12610618
申请日：2009-11-02
申请人： Xiaoan Fan , Guang Liu , Bo Li , Yunzhe Hou
发明人： Xiaoan Fan , Guang Liu , Bo Li , Yunzhe Hou
IPC分类号： H04W72/12
CPC分类号： H04L5/0055 , H04L1/1614 , H04L1/1854 , H04L1/1861 , H04W72/12
摘要： The present invention relates to radio communications, and discloses a method and apparatus for feeding back and receiving acknowledgment (ACK) information of semi-persistent scheduling (SPS) data packets. The method for feeding back ACK information of SPS data packets includes: receiving an uplink downlink assignment index (UL DAI) from a base station (BS), where the value of the UL DAI indicates the number of downlink data packets (N); mapping ACKs/NAKs of k SPS data packets of the downlink data packets to positions from the (N−k+1)th ACK/NAK to the Nth ACK/NAK; and feeding back N ACKs/NAKs to the BS. This method can guarantee that N ACKs/NAKs are arranged correctly.
摘要翻译：本发明涉及无线电通信，并且公开了一种用于反馈和接收半静态调度（SPS）数据分组的确认（ACK）信息的方法和装置。用于反馈SPS数据分组的ACK信息的方法包括：从基站（BS）接收上行链路下行链路分配索引（UL DAI），其中UL DAI的值指示下行链路数据分组的数量（N）; 将下行链路数据分组的k个SPS数据分组的ACK / NAK映射到从第（N-k + 1）个ACK / NAK到第N个ACK / NAK的位置; 并向BS反馈N个ACK / NAK。该方法可以保证N个ACK / NAK被正确配置。

7. 发明申请

US20080219431A1 METHOD AND APPARATUS FOR ECHO CANCELLATION 审中-公开
标题翻译： ECHO CANCELLATION的方法和装置
公开(公告)号：US20080219431A1
公开(公告)日：2008-09-11
申请号：US12044070
申请日：2008-03-07
申请人： Qing-Guang Liu , Wilson Or
发明人： Qing-Guang Liu , Wilson Or
IPC分类号： H04M9/08 , H04B3/20
CPC分类号： H04M9/082 , H04B3/23
摘要： A telephony system equipped with an echo cancellation module is disclosed. A hybrid interface circuit outputs an outbound signal to a wall jack while receiving an inbound signal from the wall jack. The inbound signal may contain a line echo of the outbound signal caused by the impedance mismatches in the hybrid interface circuit. A line echo canceller containing an adaptive filter is used to cancel the line echo in the inbound signal based on the learned line echo path characteristics captured in the training period. During a brief period after the telephony system is activated, the line echo canceller enters into a calibration mode wherein its adaptive filter is trained to learn the line echo path characteristics. During the calibration mode, the line echo canceller generates a calibration signal as the outbound signal and receives the line echo from the hybrid interface circuit to perform learning of the line echo path characteristics.
摘要翻译：公开了配备有回波消除模块的电话系统。混合接口电路在从墙壁插座接收入站信号的同时向墙壁插座输出出站信号。入站信号可能包含由混合接口电路中的阻抗不匹配引起的出站信号的线路回声。使用包含自适应滤波器的线路回声消除器，用于基于在训练周期中捕获的学习线路回波路径特征来消除入站信号中的线路回波。在电话系统启动后的短暂时间内，线路回波消除器进入校准模式，其中训练其自适应滤波器以学习线路回波路径特性。在校准模式期间，线路回波消除器产生校准信号作为出站信号，并从混合接口电路接收线路回声，以执行线路回声路径特性的学习。

8. 发明授权

US07339394B2 Current sensing in a two-phase motor 失效
标题翻译：两相电机中的电流检测
公开(公告)号：US07339394B2
公开(公告)日：2008-03-04
申请号：US11322007
申请日：2005-12-29
申请人： Ronan P. De Larminat , Alexander Kurnia , Guang Liu
发明人： Ronan P. De Larminat , Alexander Kurnia , Guang Liu
IPC分类号： G01R31/34
CPC分类号： H02P7/282 , H02M7/5395 , H02M2001/0009
摘要： A method and apparatus for measuring current by a single sensor for two motor phases driven by first and second set of switches to drive respective first and second phases of a motor under control of PWM signals. A first step 100 includes reading a duty cycle of each winding drive current. A next step configures 104, 110, 114, 116, 118 the PWM signals to provide at least one timing window wherein at least of one of the windings of the motor is being driven while the other winding is not being driven, and to provide a relative timing offset of approximately one-half cycle between the pulse width modulation signals driving a first winding and a second winding of the motor. A next step 90 includes gating the switches with the configured PWM signals. A next step 95 includes sampling the current of the at least one of the windings with a single sensor.
摘要翻译：一种用于由单个传感器测量电流的方法和装置，用于由第一组和第二组开关驱动的两个电动机相位，以在PWM信号的控制下驱动电动机的相应的第一和第二相。第一步骤100包括读取每个绕组驱动电流的占空比。下一个步骤将PWM信号配置为104,110,114,116,118以提供至少一个定时窗口，其中电动机的绕组中的至少一个被驱动，而另一个绕组不被驱动，并且提供一个在驱动第一绕组的脉冲宽度调制信号和电动机的第二绕组之间的大约半个周期的相对定时偏移。接下来的步骤90包括用配置的PWM信号门控开关。下一步骤95包括用单个传感器对至少一个绕组的电流进行采样。

9. 发明申请

US20060103417A1 Current sensing in a two-phase motor 失效
公开(公告)号：US20060103417A1
公开(公告)日：2006-05-18
申请号：US11322007
申请日：2005-12-29
申请人： Ronan Larminat , Alexander Kurnia , Guang Liu
发明人： Ronan Larminat , Alexander Kurnia , Guang Liu
IPC分类号： G01R31/00
CPC分类号： H02P7/282 , H02M7/5395 , H02M2001/0009
摘要： A method and apparatus for measuring current by a single sensor for two motor phases driven by first and second set of switches to drive respective first and second phases of a motor under control of PWM signals. A first step 100 includes reading a duty cycle of each winding drive current. A next step configures 104, 110, 114, 116, 118 the PWM signals to provide at least one timing window wherein at least of one of the windings of the motor is being driven while the other winding is not being driven, and to provide a relative timing offset of approximately one-half cycle between the pulse width modulation signals driving a first winding and a second winding of the motor. A next step 90 includes gating the switches with the configured PWM signals. A next step 95 includes sampling the current of the at least one of the windings with a single sensor.

10. 发明授权

US06735537B2 Procedure for measuring the current in each phase of a three-phase device via single current sensor 失效
标题翻译：通过单电流传感器测量三相设备每相中电流的步骤
公开(公告)号：US06735537B2
公开(公告)日：2004-05-11
申请号：US10099814
申请日：2002-03-15
申请人： Guang Liu , Alexander Kurnia , Ronan De'Larminat
发明人： Guang Liu , Alexander Kurnia , Ronan De'Larminat
IPC分类号： G01R1900
CPC分类号： H02M7/53873 , G01R19/0092 , H02M7/5395 , H02M2001/0009
摘要： A method for measuring the current in each phase of a three-phase motor (26) by the sensor (32), the motor (26) being controlled by a plurality of switching devices (S1-S6) that receive pulse width modulation signals from a controller (34). In one embodiment, a first and second sampling window (t1 and t2) are monitored. When both the first and second sampling windows (t1 and t2) are less than a minimum sampling window (mw), the voltage pulse trains associated with the highest output (V_h) and the lowest output (V_l) are shifted to form a first modified sampling window (t1′) and a modified second sampling window (t2′). When the first sampling window (t1) is less than the minimum sampling window and the second sampling window (t2) is greater than the minimum sampling window (mw), then the voltage pulse train associated with the highest output (V_h) and/or the middle output (V_m) may be shifted to form the first and second modified sampling windows (t1′ and t2′). When the first sampling window (t1) is greater than the minimum sampling window (mw) and the second sampling window (t2) is less than the minimum sampling window (mw), then the voltage pulse train associated with the lowest output (V_l) and/or the middle output (V_m) is shifted to form the first and second modified sampling windows (t1′ and t2′). The method may then sample a first current and a second current during the first and second modified sampling windows (t1′ and t2′), respectively. The third current may be calculated based on the sampling of the first and second currents.
摘要翻译：一种用于通过传感器（32）测量三相电动机（26）的每相中的电流的方法，电动机（26）由多个开关装置（S1-S6）控制，该开关装置接收来自控制器（34）。在一个实施例中，监视第一和第二采样窗口（t1和t2）。当第一和第二采样窗口（t1和t2）都小于最小采样窗口（mw）时，与最高输出（V_h）和最低输出（V_1）相关联的电压脉冲串被移位以形成第一修改采样窗口（t1'）和修改的第二采样窗口（t2'）。当第一采样窗口（t1）小于最小采样窗口并且第二采样窗口（t2）大于最小采样窗口（mw）时，与最高输出（V_h）和/或中间输出（V_m）可以移位以形成第一和第二修改采样窗口（t1'和t2'）。当第一采样窗口（t1）大于最小采样窗口（mw）并且第二采样窗口（t2）小于最小采样窗口（mw）时，与最低输出（V_l）相关联的电压脉冲串和/或中间输出（V_m）被移位以形成第一和第二修改采样窗口（t1'和t2'）。然后，该方法可以在第一和第二修改采样窗口（t1'和t2'）期间分别采样第一电流和第二电流。可以基于第一和第二电流的采样来计算第三电流。

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