公开(公告)号：US20120032617A1

公开(公告)日：2012-02-09

申请号：US13214636

申请日：2011-08-22

Applicant: Rodney JONES ,  Christopher Newton

Inventor： Rodney JONES ,  Christopher Newton

IPC: H02P5/74 ,  H02P7/18

CPC classification number: B63H21/17 ,  B63H23/24 ,  H02M5/4585 ,  H02P23/06

Abstract: A power converter that interfaces a motor requiring variable voltage/frequency to a supply network providing a nominally fixed voltage/frequency includes a first rectifier/inverter connected to a stator and a second rectifier/inverter. Both rectifier/inverters are interconnected by a dc link and include switching devices. A filter is connected between the second rectifier/inverter and the network. A first controller for the first rectifier/inverter uses a dc link voltage demand signal indicative of a desired dc link voltage to control the switching devices of the first rectifier/inverter. A second controller for the second rectifier/inverter uses a power demand signal indicative of the level of power to be transferred to the dc link from the network through the second rectifier/inverter, and a voltage demand signal indicative of the voltage to be achieved at network terminals of the filter to control the switching devices of the second rectifier/inverter.

Abstract translation: 将需要可变电压/频率的电动机与提供标称固定电压/频率的电源网络接合的电力转换器包括连接到定子和第二整流器/逆变器的第一整流器/逆变器。 整流器/逆变器均由直流链路互连，并包括开关装置。 滤波器连接在第二整流器/逆变器和网络之间。 第一整流器/逆变器的第一控制器使用指示期望的直流链路电压的直流链路电压需求信号来控制第一整流器/逆变器的开关装置。 用于第二整流器/逆变器的第二控制器使用指示通过第二整流器/逆变器从网络传送到直流链路的功率电平的功率需求信号，以及指示将要实现的电压的电压需求信号 滤波器的网络端子来控制第二整流器/逆变器的开关器件。

公开(公告)号：US08008885B2

公开(公告)日：2011-08-30

申请号：US12151118

申请日：2008-05-02

Applicant: Rodney Jones ,  Christopher Newton

Inventor： Rodney Jones ,  Christopher Newton

IPC: H02P27/04

CPC classification number: B63H21/17 ,  B63H23/24 ,  Y02T70/5236

Abstract: A power converter interfaces a variable voltage and variable frequency motor to a fixed voltage and fixed frequency network. A first inverter is connected to the motor stator. A dc link is connected between the first inverter and a second inverter. Each inverter includes switches. A filter is connected between the second inverter and the network. A first controller for the first inverter uses a dc link voltage demand signal indicative of a desired dc link voltage to control the first inverter switches to achieve a desired dc link voltage level. A second controller for the second inverter uses a power demand signal indicative of a power to be transferred to the dc link from the network through the second inverter, and a voltage demand signal indicative of a voltage to be achieved at the filter to control the second inverter switches to achieve desired power and voltage levels.

Abstract translation: 电力转换器将可变电压和变频电机接入固定电压和固定频率网络。 第一逆变器连接到电动机定子。 直流链路连接在第一反相器和第二反相器之间。 每个逆变器包括开关。 滤波器连接在第二反相器和网络之间。 用于第一逆变器的第一控制器使用表示期望的直流链路电压的直流链路电压需求信号来控制第一逆变器开关以实现期望的直流链路电压电平。 第二逆变器的第二控制器使用指示通过第二逆变器从网络传递到直流链路的功率的功率需求信号，以及指示要在滤波器处实现的电压以控制第二反相器的电压需求信号 逆变器开关实现所需的功率和电压电平。

公开(公告)号：US08513911B2

公开(公告)日：2013-08-20

申请号：US13214636

申请日：2011-08-22

Applicant: Rodney Jones ,  Christopher Newton

Inventor： Rodney Jones ,  Christopher Newton

IPC: H02P27/04

CPC classification number: B63H21/17 ,  B63H23/24 ,  H02M5/4585 ,  H02P23/06

Abstract: A power converter that interfaces a motor requiring variable voltage/frequency to a supply network providing a nominally fixed voltage/frequency includes a first rectifier/inverter connected to a stator and a second rectifier/inverter. Both rectifier/inverters are interconnected by a dc link and include switching devices. A filter is connected between the second rectifier/inverter and the network. A first controller for the first rectifier/inverter uses a dc link voltage demand signal indicative of a desired dc link voltage to control the switching devices of the first rectifier/inverter. A second controller for the second rectifier/inverter uses a power demand signal indicative of the level of power to be transferred to the dc link from the network through the second rectifier/inverter, and a voltage demand signal indicative of the voltage to be achieved at network terminals of the filter to control the switching devices of the second rectifier/inverter.

Abstract translation: 将需要可变电压/频率的电动机与提供标称固定电压/频率的电源网络接合的电力转换器包括连接到定子和第二整流器/逆变器的第一整流器/逆变器。 整流器/逆变器均由直流链路互连，并包括开关装置。 滤波器连接在第二整流器/逆变器和网络之间。 第一整流器/逆变器的第一控制器使用指示期望的直流链路电压的直流链路电压需求信号来控制第一整流器/逆变器的开关装置。 用于第二整流器/逆变器的第二控制器使用指示通过第二整流器/逆变器从网络传送到直流链路的功率电平的功率需求信号，以及指示将要实现的电压的电压需求信号 滤波器的网络端子来控制第二整流器/逆变器的开关器件。

公开(公告)号：US20080284369A1

公开(公告)日：2008-11-20

申请号：US12151118

申请日：2008-05-02

Applicant: Rodney Jones ,  Christopher Newton

Inventor： Rodney Jones ,  Christopher Newton

IPC: H02P27/06

CPC classification number: B63H21/17 ,  B63H23/24 ,  Y02T70/5236

Abstract: The present invention is directed to a power converter that can be used to interface a motor 4 that requires variable voltage at variable frequency to a supply network (bus) providing a nominally fixed voltage and nominally fixed frequency. The power converter includes a first active rectifier/inverter 10 electrically connected to the stator of the motor 4 and a second active rectifier/inverter 14. Both the first and second active rectifier/inverters include a plurality of semiconductor power switching devices. A dc link 12 is connected between the first active rectifier/inverter and the second active rectifier/inverter. A filter 16 is connected between the second active rectifier/inverter and the supply network and includes network terminals. The power converter includes a first controller 18 for the first active rectifier/inverter and a second controller 20 for the second active rectifier/inverter. The first controller 18 uses a dc link voltage demand signal VDC_MOT* indicative of a desired dc link voltage to control the semiconductor power switching devices of the first active rectifier/inverter 10 to achieve the desired level of dc link voltage that corresponds to the dc link voltage demand signal. The second controller 20 uses a power demand signal P* indicative of the level of power to be transferred to the dc link 12 from the supply network (bus) through the second active rectifier/inverter 14, and a voltage demand signal VBUS* indicative of the voltage to be achieved at the network terminals of the filter 16 to control the semiconductor power switching devices of the second active rectifier/inverter 14 to achieve the desired levels of power and voltage that correspond to the power and voltage demand signals. The power converter can be employed in a marine propulsion system where the rotor of the motor 4 is used to drive a propeller assembly 2.

Abstract translation: 本发明涉及一种功率转换器，其可用于将需要可变频率的可变电压的电动机4与提供标称固定电压和标称固定频率的供电网络（总线）进行接口。 功率转换器包括电连接到电动机4的定子的第一有源整流器/逆变器10和第二有源整流器/逆变器14。 第一和第二有源整流器/反相器都包括多个半导体功率开关器件。 直流连杆12连接在第一有源整流器/反相器和第二有源整流器/反相器之间。 滤波器16连接在第二有源整流/逆变器与供电网络之间，并且包括网络终端。 功率转换器包括用于第一有源整流器/反相器的第一控制器18和用于第二有源整流器/反相器的第二控制器20。 第一控制器18使用指示期望的直流链路电压的直流链路电压需求信号VDC_MOT *来控制第一有源整流器/逆变器10的半导体功率开关器件，以实现对应于直流链路的期望的直流链路电压电平 电压需求信号。 第二控制器20使用表示从供电网络（总线）通过第二有源整流器/逆变器14传送到直流链路12的功率电平的功率需求信号P *，以及指示 在滤波器16的网络端子处要实现的电压，以控制第二有源整流器/逆变器14的半导体功率开关器件，以实现对应于功率和电压需求信号的期望功率和电压水平。 功率转换器可以用在船用推进系统中，其中马达4的转子用于驱动螺旋桨组件2。

公开(公告)号：US09759974B2

公开(公告)日：2017-09-12

申请号：US14346503

申请日：2011-10-31

Applicant: Stephen Kitson ,  Mario Ariosto Matranga ,  Timothy Taphouse ,  Daniel M. Younger ,  Christopher Newton

Inventor： Stephen Kitson ,  Mario Ariosto Matranga ,  Timothy Taphouse ,  Daniel M. Younger ,  Christopher Newton

IPC: C09K19/52 ,  G02F1/139 ,  G02F1/1337 ,  G02F1/137

CPC classification number: G02F1/1396 ,  G02F1/133707 ,  G02F1/13725

Abstract: A reflective display device includes a pixel structure (200) and a liquid crystal (210) containing a dye. The pixel structure (200) provides the liquid crystal (210) with a first tilt state and a second tilt state that are stable absent application of an electric field. In the first tilt state, the liquid crystal (210) is in an untwisted configuration. In the second tilt state, the liquid crystal (210) is in a twisted configuration, and the dye has an effective absorption that is higher than an effective absorption of the dye when the liquid crystal (210) is in the first tilt state.

公开(公告)号：US08930538B2

公开(公告)日：2015-01-06

申请号：US12408681

申请日：2009-03-21

Applicant: David Fullagar ,  Christopher Newton ,  Laurence R. Lipstone

Inventor： David Fullagar ,  Christopher Newton ,  Laurence R. Lipstone

IPC: G06F15/173 ,  H04N7/173 ,  H04N21/222 ,  H04N21/231 ,  H04N21/258 ,  H04N21/472 ,  H04L29/08

CPC classification number: H04N7/17354 ,  H04L67/2814 ,  H04L67/2842 ,  H04N21/222 ,  H04N21/23106 ,  H04N21/25891 ,  H04N21/472

Abstract: A content delivery network has at least a first tier of servers. A content delivery method includes, at a first server in the first tier of servers, obtaining a request from a client for a resource. If the resource is available at the first server or at a peer of the first server, then the resource is served to the client from the first server. Otherwise, it is determined whether the resource is popular, and if the resource is determined to be popular, then the first server obtains the resource and the first server serves the resource to the client. If the resource is determined not to be popular, the client is directed to a second server, not in the first tier of servers, and the second server serves the resource to the client. The second server may be in a second tier of servers or it may be an origin server.

Abstract translation: 内容传送网络至少具有第一层服务器。 内容递送方法包括在第一层服务器中的第一服务器处，从客户端获取资源的请求。 如果资源在第一个服务器或第一个服务器的一个对等体上可用，则资源从第一个服务器提供给客户端。 否则，确定资源是否流行，如果资源被确定为流行，则第一服务器获得资源，并且第一服务器向客户端提供资源。 如果资源被确定为不受欢迎，则客户端被引导到第二服务器，而不是在第一层服务器中，并且第二服务器向客户端提供资源。 第二服务器可以在第二层服务器中，或者它可以是源服务器。

公开(公告)号：US20130173806A1

公开(公告)日：2013-07-04

申请号：US13495085

申请日：2012-06-13

Applicant: Christopher Newton ,  Maksim Yevmenkin ,  David Fullagar ,  Jeffrey G. Koller

Inventor： Christopher Newton ,  Maksim Yevmenkin ,  David Fullagar ,  Jeffrey G. Koller

IPC: G06F15/173

CPC classification number: H04L67/1008 ,  H04L67/1014 ,  H04L67/1025 ,  H04L67/148

Abstract: A load-balancing cluster includes a switch having ports; and servers connected to at least some of the ports. The servers are each addressable by the same virtual Internet Protocol (VIP) address. A first server of the plurality of servers establishing a Transmission Control Protocol (TCP) connection with a client computer, and, in response to a resource request received by the first server from the client computer for a particular resource, if the first server does not have a copy of the particular resource it queries one or more peers regarding the particular resource. Based at least in part on responses from the peers, the first server either: obtains the particular resource from a peer; or migrates the TCP connection to a peer; or serves the particular resource to the client request through a second server.

Abstract translation: 负载均衡集群包括具有端口的交换机; 以及连接到至少一些端口的服务器。 这些服务器可以由相同的虚拟互联网协议（VIP）地址寻址。 多个服务器的第一服务器与客户端计算机建立传输控制协议（TCP）连接，并且响应于第一服务器从客户端计算机针对特定资源接收到的资源请求，如果第一服务器不 具有查询特定资源的一个或多个对等体的特定资源的副本。 至少部分地基于来自对等体的响应，第一服务器：从对等体获得特定资源; 或将TCP连接迁移到对等体; 或通过第二服务器为客户端请求提供特定资源。

公开(公告)号：US20110276679A1

公开(公告)日：2011-11-10

申请号：US12773086

申请日：2010-05-04

Applicant: Christopher Newton ,  David Fullagar

Inventor： Christopher Newton ,  David Fullagar

IPC: G06F15/173

CPC classification number: H04N21/2405 ,  H04L67/1034 ,  H04N21/23103 ,  H04N21/2402

Abstract: Provided are methods and systems for dynamic binding in the context of content delivery. For example, the methods and systems may be implemented as a dynamic binding process that maps a content provider to a first set of content servers in a content distribution network. The dynamic binding process may then facilitate the content to be received from the content provider so that the content can be distributed by the first set of content servers in the content distribution network. The dynamic binding process further monitors network traffic associated with the content from the content provider and determines at least one metric associated with the network traffic. Additionally, the dynamic binding process can remap the content provider to a second set of content servers in the content distribution network based on at least one of the metrics.

Abstract translation: 提供了在内容传递的上下文中用于动态绑定的方法和系统。 例如，方法和系统可以被实现为将内容提供商映射到内容分发网络中的第一组内容服务器的动态绑定过程。 动态绑定过程然后可以便于从内容提供商接收内容，使得内容可以由内容分发网络中的第一组内容服务器分发。 动态绑定过程进一步监视来自内容提供商的与内容相关联的网络流量，并且确定与网络流量相关联的至少一个度量。 另外，动态绑定过程可以基于至少一个度量来将内容提供商重新映射到内容分发网络中的第二组内容服务器。

公开(公告)号：US20110055386A1

公开(公告)日：2011-03-03

申请号：US12836438

申请日：2010-07-14

Applicant: Ted Middleton ,  Christopher Newton

Inventor： Ted Middleton ,  Christopher Newton

IPC: G06F15/16

CPC classification number: H04L67/125 ,  H04L65/4084 ,  H04L67/06 ,  H04L67/2842

Abstract: Embodiments generally disclosed herein include a methods and systems configured for providing network analytics for a content delivery network. The methods and systems include providing a content delivery network comprising at least one content server. The methods and systems further include detecting a request for network analytics from the content delivery network and extracting network analytics at the at least one content server. The methods and systems may further include disseminating the network analytics from the content delivery network.

Abstract translation: 本文通常公开的实施例包括配置用于为内容传送网络提供网络分析的方法和系统。 所述方法和系统包括提供包括至少一个内容服务器的内容传送网络。 所述方法和系统还包括从所述内容传送网络检测对网络分析的请求并在所述至少一个内容服务器上提取网络分析。 方法和系统还可以包括从内容传送网络传播网络分析。

公开(公告)号：US20100332595A1

公开(公告)日：2010-12-30

申请号：US12880324

申请日：2010-09-13

Applicant: David Fullagar ,  Christopher Newton ,  Laurence Lipstone

Inventor： David Fullagar ,  Christopher Newton ,  Laurence Lipstone

IPC: G06F15/16

CPC classification number: H04L67/2814 ,  H04L67/1014 ,  H04L67/1097 ,  H04L67/2842 ,  H04N7/17354 ,  H04N21/222 ,  H04N21/23103 ,  H04N21/23106 ,  H04N21/25891 ,  H04N21/472

Abstract: A content delivery network has at least a first tier of servers. A content delivery method includes, at a first server in the first tier of servers, obtaining a request from a client for a resource. If the resource is available at the first server or at a peer of the first server, then the resource is served to the client from the first server. Otherwise, it is determined whether the resource is popular, and if the resource is determined to be popular, then the first server obtains the resource and the first server serves the resource to the client. If the resource is determined not to be popular, the client is directed to a second server, not in the first tier of servers, and the second server serves the resource to the client. The second server may be in a second tier of servers or it may be an origin server.

Abstract translation: 内容传送网络至少具有第一层服务器。 内容递送方法包括在第一层服务器中的第一服务器处，从客户端获取资源的请求。 如果资源在第一个服务器或第一个服务器的一个对等体上可用，则资源从第一个服务器提供给客户端。 否则，确定资源是否流行，如果资源被确定为流行，则第一服务器获得资源，并且第一服务器向客户端提供资源。 如果资源被确定为不受欢迎，则客户端被引导到第二服务器，而不是在第一层服务器中，并且第二服务器向客户端提供资源。 第二服务器可以在第二层服务器中，或者它可以是源服务器。