公开(公告)号：US20060012348A1

公开(公告)日：2006-01-19

申请号：US09843143

申请日：2001-04-27

申请人： Qun Zhao ,  Fred Lee ,  Peng Xu

发明人： Qun Zhao ,  Fred Lee ,  Peng Xu

IPC分类号： G05F1/24

CPC分类号： H02M3/155

摘要： DC/DC converter for managing high voltage gain that includes an input side having a high tap and a low tap, an output side having a high tap and a low tap, a converter circuit interconnecting the input side and the output side, and a steering branch having at least one rectifier and one of at least one winding and a capacitor. The steering branch interconnects the input side with the output side. The converter circuit is preferably selected from the following types of conventional converter circuits: buck, boost, buck-boost, Cuk, Sepic, Zeta, half bridge boost for low-line input, half bridge boost for high-line input, and half bridge boost for universal-line input. The DC/DC converter uses coupled inductor to shift the original rectifier current to an added branch and then control the rectifier current decrease rate in the new branch when rectifier turns off.

摘要翻译： DC / DC转换器，用于管理包括具有高抽头和低抽头的输入侧的高电压增益，具有高抽头和低抽头的输出侧，将输入侧和输出侧互连的转换器电路和转向器 分支具有至少一个整流器和至少一个绕组和电容器中的一个。 转向分支将输入侧与输出侧互连。 转换器电路优选从以下类型的常规转换器电路中选择：降压，升压，降压 - 升压，Cuk，Sepic，Zeta，低线路输入的半桥升压，高线路输入的半桥升压和半桥 推动通用线路输入。 DC / DC转换器使用耦合电感器将原始整流器电流移位到附加的分支，然后在整流器关闭时控制新分支中的整流器电流降低率。

公开(公告)号：US09817039B2

公开(公告)日：2017-11-14

申请号：US13249128

申请日：2011-09-29

申请人： Peng Xu ,  Francis Yu

发明人： Peng Xu ,  Francis Yu

IPC分类号： G01R17/00 ,  G01R19/00

CPC分类号： G01R19/0092

摘要： In one embodiment, a current sensing circuit includes a differential current sensing amplifier adapted for sensing a voltage drop across a main transistor, the differential current sensing amplifier being adapted for providing a switched current output to a timing circuit which is adapted for providing a timing signal to one or more switching current sample-and-hold circuits based on a current waveform of the switched current output, and the one or more switching current sample-and-hold circuits, each of which are adapted for producing a substantially continuous output current. In another embodiment, a method for detecting a current includes driving a main transistor with a first current, driving one or more sensing transistors with a second current, measuring a sensing inductor current of the one or more sensing transistors, and determining the first current based on the sensing inductor current, wherein the sensing inductor current is related to the first current.

公开(公告)号：US09569958B2

公开(公告)日：2017-02-14

申请号：US12031990

申请日：2008-02-15

申请人： Karthick Muthu-Manivannan ,  Carl L. Benner ,  Peng Xu ,  Billy Don Russell

发明人： Karthick Muthu-Manivannan ,  Carl L. Benner ,  Peng Xu ,  Billy Don Russell

IPC分类号： G06F15/16 ,  G08C25/00 ,  H04L29/06

CPC分类号： G08C25/00 ,  H04L63/1408 ,  H04L63/1433

摘要： A method for prioritizing events on an electrical power system, including: (a) acquiring at least one data portion representative of the behavior of the electrical power system, the at least one data portion containing at least one power system event; (b) assigning at least one rank value to the at least one data portion based on the type of power system event, the rank value indicative of a priority of the event; and (c) conducting subsequent operations on the at least one data portion in accordance with the at least one rank value.

摘要翻译： 一种用于对电力系统上的事件进行优先排序的方法，包括：（a）获取表示电力系统的行为的至少一个数据部分，所述至少一个数据部分包含至少一个电力系统事件; （b）基于所述电力系统事件的类型向所述至少一个数据部分分配至少一个等级值，所述等级值指示所述事件的优先级; 以及（c）根据所述至少一个等级值对所述至少一个数据部分进行后续操作。

公开(公告)号：US08930471B2

公开(公告)日：2015-01-06

申请号：US13171191

申请日：2011-06-28

申请人： Wendy Lynne Bohner ,  Peng Xu ,  Jayabharatha Busireddy

发明人： Wendy Lynne Bohner ,  Peng Xu ,  Jayabharatha Busireddy

IPC分类号： G06F15/16 ,  G06F19/00

CPC分类号： G06F19/322 ,  G06F19/00 ,  G06F19/321 ,  G16H10/60

摘要： Methods and systems for receiving, mapping and structuring data from disparate systems in a healthcare environment are described. An example computer-implemented method of receiving data input associated with different versions of healthcare message structures includes receiving first data in a first format through a single service interface. One or more fields of the first data is not supported by at least one of the different versions of the healthcare message structures. The example method also includes receiving second data in a second format through the single service interface. One or more fields of the second data is not supported by at least one of the different versions of the healthcare message structures. The single service interface enables the receipt of the first data and the second data to minimize a number of interface end points.

摘要翻译： 描述了用于在医疗保健环境中从不同系统接收，映射和构造数据的方法和系统。 接收与不同版本的医疗保健消息结构相关联的数据输入的示例计算机实现的方法包括通过单个服务接口以第一格式接收第一数据。 医疗保健消息结构的不同版本中的至少一个不支持第一数据的一个或多个字段。 该示例方法还包括通过单个服务接口以第二格式接收第二数据。 医疗保健消息结构的不同版本中的至少一个不支持第二数据的一个或多个字段。 单服务接口使得能够接收第一数据和第二数据以最小化接口端点的数量。

公开(公告)号：US08881456B2

公开(公告)日：2014-11-11

申请号：US13406493

申请日：2012-02-27

申请人： Peng Xu

发明人： Peng Xu

IPC分类号： E06B7/08

CPC分类号： E06B9/264 ,  E06B9/386 ,  E06B2009/2643

摘要： This disclosure provides a new type of shading device for windows. The shading device comprises two sheets of glass, a blind with a plurality of slates, and an actuating device rotating them. The slats are painted with a low reflectivity coating on one side and a high reflectivity coating on the other side. The blind is installed inside the air tight chamber formed by two sheets of glass. In addition, a low emissivity film can be applied on the wall of the air tight chamber. The shade device employs a control system to adjust the angle of the blind slats in response to various input signals.

摘要翻译： 本公开提供了一种用于窗户的新型遮光装置。 遮光装置包括两片玻璃，具有多个板岩的百叶窗和旋转它们的致动装置。 板条在一侧涂有低反射率涂层，另一面涂覆高反射率涂层。 盲板安装在由两片玻璃形成的气密室内。 此外，低辐射率膜可以施加在气密室的壁上。 遮光装置采用控制系统来响应于各种输入信号来调节盲板的角度。

公开(公告)号：US08618857B2

公开(公告)日：2013-12-31

申请号：US13431595

申请日：2012-03-27

申请人： Yan Dong ,  Peng Xu

发明人： Yan Dong ,  Peng Xu

IPC分类号： H03H11/26

CPC分类号： H03K5/133 ,  H02M3/1588 ,  H03K17/284 ,  Y02B70/1466

摘要： The embodiments of the present invention disclose a delay circuit. The delay circuit comprises an inverter, a load capacitor, and a first voltage clamping module, wherein the first voltage clamping module generates a voltage drop configured to prolong the propagation delay time of the delay circuit as the power supply voltage decreases. The power supply dependent delay circuit may have a much larger propagation delay time at low power supply voltage than it at high power supply voltage at the rising-edge or falling-edge of an input signal.

摘要翻译： 本发明的实施例公开了延迟电路。 所述延迟电路包括反相器，负载电容器和第一电压钳位模块，其中所述第一电压钳位模块产生电压降，所述电压降配置为当所述电源电压降低时延长所述延迟电路的传播延迟时间。 电源相关延迟电路在低电源电压下的输入信号上升沿或下降沿的高电源电压可能具有大得多的传播延迟时间。

公开(公告)号：US20130154484A1

公开(公告)日：2013-06-20

申请号：US13330490

申请日：2011-12-19

申请人： Peng Xu

发明人： Peng Xu

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  H02M3/1588 ,  H02M2001/009 ,  H05B33/0815 ,  Y02B20/346 ,  Y02B70/1466

摘要： A LED driving system comprising: an input port to receive an input signal; a switch node to provide a switching signal; an energy storage component coupled between the input port and the switch node; a main switch coupled between the switch node and ground; n output lines coupled in parallel, and each output line having a first and second terminals, and wherein the first terminal is coupled to the switch node, and the second terminal is coupled the reference ground, and wherein each output line having an output switch, a diode and a LED string coupled in series between the first and second terminals, and wherein each output line having a capacitor coupled in parallel with the LED string; and a controller providing a control signal to the main switch and providing corresponding n control signals to the corresponding n output switches in the corresponding n output lines.

摘要翻译： 一种LED驱动系统，包括：用于接收输入信号的输入端口; 开关节点，用于提供开关信号; 耦合在输入端口和开关节点之间的能量存储部件; 耦合在开关节点和地之间的主开关; n个输出线并联耦合，并且每个输出线具有第一和第二端子，并且其中第一端子耦合到开关节点，并且第二端子耦合到参考地，并且其中每个输出线具有输出开关， 串联在第一和第二端子之间的二极管和LED串，并且其中每个输出线具有与LED串并联耦合的电容器; 以及向主开关提供控制信号并向相应的n个输出线中的相应的n个输出开关提供相应的n个控制信号的控制器。

公开(公告)号：US20130082689A1

公开(公告)日：2013-04-04

申请号：US13249128

申请日：2011-09-29

申请人： Peng Xu ,  Francis Yu

发明人： Peng Xu ,  Francis Yu

IPC分类号： G01R1/30

CPC分类号： G01R19/0092

摘要： In one embodiment, a current sensing circuit includes a differential current sensing amplifier adapted for sensing a voltage drop across a main transistor, the differential current sensing amplifier being adapted for providing a switched current output to a timing circuit which is adapted for providing a timing signal to one or more switching current sample-and-hold circuits based on a current waveform of the switched current output, and the one or more switching current sample-and-hold circuits, each of which are adapted for producing a substantially continuous output current. In another embodiment, a method for detecting a current includes driving a main transistor with a first current, driving one or more sensing transistors with a second current, measuring a sensing inductor current of the one or more sensing transistors, and determining the first current based on the sensing inductor current, wherein the sensing inductor current is related to the first current.

摘要翻译： 在一个实施例中，电流感测电路包括适于感测主晶体管两端的电压降的差动电流感测放大器，该差动电流感测放大器适于向定时电路提供开关电流输出，该定时电路适于提供定时信号 基于开关电流输出的电流波形的一个或多个开关电流采样和保持电路以及一个或多个开关电流采样和保持电路，每个开关电流采样和保持电路适于产生基本上连续的输出电流。 在另一个实施例中，用于检测电流的方法包括用第一电流驱动主晶体管，用第二电流驱动一个或多个感测晶体管，测量一个或多个感测晶体管的感测电感电流，以及基于第一电流确定 在感测电感器电流上，其中感测电感器电流与第一电流相关。

公开(公告)号：US20130006623A1

公开(公告)日：2013-01-03

申请号：US13539284

申请日：2012-06-29

申请人： Ciprian I. Chelba ,  Peng Xu ,  Fernando Pereira

发明人： Ciprian I. Chelba ,  Peng Xu ,  Fernando Pereira

IPC分类号： G10L15/20

CPC分类号： G10L15/187 ,  G10L15/063 ,  G10L15/14 ,  G10L15/34 ,  G10L2015/0631

摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for recognizing speech using a variable length of context. Speech data and data identifying a candidate transcription for the speech data are received. A phonetic representation for the candidate transcription is accessed. Multiple test sequences are extracted for a particular phone in the phonetic representation. Each of the multiple test sequences includes a different set of contextual phones surrounding the particular phone. Data indicating that an acoustic model includes data corresponding to one or more of the multiple test sequences is received. From among the one or more test sequences, the test sequence that includes the highest number of contextual phones is selected. A score for the candidate transcription is generated based on the data from the acoustic model that corresponds to the selected test sequence.

摘要翻译： 方法，系统和装置，包括在计算机存储介质上编码的计算机程序，用于使用可变长度的上下文识别语音。 接收用于识别语音数据的候选转录的语音数据和数据。 访问候选转录的语音表示。 在语音表示中为特定电话提取多个测试序列。 多个测试序列中的每一个包括围绕特定电话的不同的上下文电话组。 指示声学模型包括与多个测试序列中的一个或多个对应的数据的数据被接收。 从一个或多个测试序列中，选择包括最多数量的上下文电话的测试序列。 基于来自对应于所选择的测试序列的声学模型的数据生成候选转录的得分。

公开(公告)号：US20120286750A1

公开(公告)日：2012-11-15

申请号：US13104855

申请日：2011-05-10

申请人： Peng Xu

发明人： Peng Xu

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02M3/1584 ,  H02M2003/1566

摘要： Various embodiments of switch mode power supplies, circuits, and methods of control are described herein. In one embodiment, a method of operating a switch mode power supply having a switching circuit coupled to an inductor includes modulating a duty cycle of the switching circuit to charge the inductor using pulse width modulation, supplying an output voltage from the inductor to the load, performing a comparison between the output voltage and a reference voltage, and deriving an error signal based on the comparison between the output voltage and the reference voltage. The method also includes generating a clock signal for the pulse width modulation based on the received error signal.

摘要翻译： 这里描述了开关模式电源，电路和控制方法的各种实施例。 在一个实施例中，一种操作具有耦合到电感器的开关电路的开关模式电源的方法包括调制开关电路的占空比以使用脉冲宽度调制对电感器充电，将电感器的输出电压提供给负载， 执行输出电压和参考电压之间的比较，并且基于输出电压和参考电压之间的比较导出误差信号。 该方法还包括基于接收的误差信号产生用于脉冲宽度调制的时钟信号。