公开(公告)号：US20140047427A1

公开(公告)日：2014-02-13

申请号：US13572772

申请日：2012-08-13

申请人： David H. Evans ,  David W. Glass ,  Martin Thiim ,  Tamas Visegrady

发明人： David H. Evans ,  David W. Glass ,  Martin Thiim ,  Tamas Visegrady

IPC分类号： G06F9/445

CPC分类号： G06F9/45529 ,  G06F8/654

摘要： Embodiments of the present invention provide a system, method, and computer program product for updating software on an embedded computer device. According to one aspect of the present invention, a concurrent embedded application update is performed in which selected state information for one or both of an embedded virtual machine and a plurality of applets on an embedded computer device is securely exported to a host computer device. After software updates have been installed, the selected state information can be restored on the embedded computer device from which it was exported and/or it can be migrated to a second embedded computer device.

摘要翻译： 本发明的实施例提供一种用于在嵌入式计算机设备上更新软件的系统，方法和计算机程序产品。 根据本发明的一个方面，执行并行嵌入式应用更新，其中嵌入式计算机设备上的嵌入式虚拟机和多个小应用程序中的一个或两个的所选状态信息被安全地导出到主机设备。 在安装了软件更新之后，可以在导出它的嵌入式计算机设备上还原所选择的状态信息和/或可以将其迁移到第二嵌入式计算机设备。

公开(公告)号：US07575860B2

公开(公告)日：2009-08-18

申请号：US10220262

申请日：2001-03-07

申请人： David H. Evans ,  David O. Willer ,  Xiao-Dan Yao

发明人： David H. Evans ,  David O. Willer ,  Xiao-Dan Yao

IPC分类号： C12Q1/68 ,  C12N15/00 ,  C07H21/04

CPC分类号： C12N15/66

摘要： The present invention provides a method to directionally clone any linear template DNA molecule into any linearized vector. The vector ends may be generated from any restriction enzyme cleavage. The method does not require a ligation step nor the use of carefully controlled conditions as is required with methods involving specific exonucleases alone. It has been determined that specific DNA polymerases are able to efficiently join one or more linear DNA molecules sharing ends with appropriate complementation.

摘要翻译： 本发明提供了将任何线性模板DNA分子定向克隆成任何线性化载体的方法。 载体末端可以由任何限制酶切割产生。 该方法不需要连接步骤，也不需要使用严格控制的条件，如同单独使用特定的核酸内切酶的方法一样。 已经确定特定的DNA聚合酶能够有效地加入一个或多个具有适当互补共价末端的线性DNA分子。

公开(公告)号：US5294895A

公开(公告)日：1994-03-15

申请号：US954727

申请日：1992-09-30

申请人： Stuart M. Feeney ,  David H. Evans ,  Kenneth Holford

发明人： Stuart M. Feeney ,  David H. Evans ,  Kenneth Holford

IPC分类号： H01P1/00 ,  H01P7/06 ,  H03B5/18 ,  H03B9/12 ,  H03B9/14 ,  H03L7/04 ,  H03L7/06 ,  H03B7/14

CPC分类号： H03L7/04 ,  H03B9/141 ,  H03B2009/126

摘要： In addition to a first opening (11) forming a primary output from a waveguide cavity (10) of a microwave oscillator, a coupling aperture (12) in a reflective wall (32) provides a secondary output which does not degrade the performance or tuning characteristics of the source. Less than -20 dB of the source power may be coupled out via the aperture (12) and is used in a feed-back loop (12,21,23,24,36) with an harmonic mixer (21) and frequency discriminator (24) to stabilize the source. The mixer comprises a further waveguide section (15) separated from the source cavity (10) by the reflective wall (32). An advantageous mixer assembly comprises a circuit substrate which is mounted across the further waveguide cavity (15) and which carries an inductive probe by which the signal from the coupling aperture (12) is fed to an antiparallel pair of mixer diodes on the substrate. The whole assembly may be bolted together through holes (34).

摘要翻译： 除了形成来自微波振荡器的波导腔（10）的初级输出的第一开口（11）之外，反射壁（32）中的耦合孔（12）提供不会降低性能或调谐的次级输出 来源的特点。 小于-20dB的源功率可以经由孔径（12）耦合出来，并且用于具有谐波混频器（21）和鉴频器（12,21,23,24,36）的反馈回路（12,21,23,24,36） 24）稳定源。 混合器包括通过反射壁（32）与源腔（10）分离的另外的波导部分（15）。 有利的混合器组件包括安装在另外的波导腔（15）上并且承载感应探针的电路衬底，通过该电感探针将耦合孔（12）的信号馈送到衬底上的反平行的一对混合二极管。 整个组件可以通过孔（34）螺栓连接在一起。

公开(公告)号：US5192190A

公开(公告)日：1993-03-09

申请号：US884268

申请日：1992-05-08

申请人： Jurek Ferleger ,  David H. Evans

发明人： Jurek Ferleger ,  David H. Evans

IPC分类号： F01D5/14

CPC分类号： F01D5/141 ,  F05D2240/301

摘要： A stationary blade for a steam turbine includes an airfoil portion having an inner diameter end and an outer diameter end; an inner ring portion integrally formed at the inner diameter end of the airfoil portion; and an outer ring portion integrally formed at the outer diameter end of the airfoil portion, the airfoil, inner ring and outer ring portions being envelope forged from a single bar stock, and each blade being welded together with an adjacent, substantially identical blade with welds provided at the inner and outer ring portions, the inner ring portion welds comprising a first, upstream weld and a second, downstream weld which is lower than the upstream weld.

摘要翻译： 一种用于蒸汽轮机的固定叶片包括具有内径端和外径端的翼型部分; 一体地形成在所述翼型部的内径端的内圈部; 以及一体地形成在翼型部分的外径端处的外环部分，翼型件，内圈和外圈部分从单个条形坯料封套锻造，并且每个刀片与相邻的基本相同的刀片焊接在一起，其具有焊缝 设置在所述内圈和外圈部分，所述内环部分焊接包括第一上游焊接和低于所述上游焊接的第二下游焊接。

公开(公告)号：US4999587A

公开(公告)日：1991-03-12

申请号：US460411

申请日：1990-01-03

申请人： David H. Evans

发明人： David H. Evans

IPC分类号： H03B9/10 ,  H03B1/00 ,  H03B9/14

CPC分类号： H03B9/141 ,  H03B2009/126 ,  H03B2201/0208 ,  H03B9/146 ,  H03B9/147

摘要： In a waveguide oscillator, a Gunn diode or other negative-resistance oscillator device (2) has a resonant cap (3) for coupling to the waveguide (1), and a tuning varactor diode (11) is coupled by a probe (13) to the electromagnetic filed in the vicinity of the cap (3). In accordance with the invention, a mechanically simple, compact and cheap oscillator arrangement is obtained by integrating both the varactor diode (11) and the probe (13) in a circuit body (10) mounted in the waveguide (1), preferably in an area below the plane of the cap (3) so as to reduce perturbation of the filed. The probe is formed as a conductive track (13) on the circuit body (10), for example as a transmission line coupling to the electric field and preferably located at the front surface (18) of the body (10) or as a current loop extending on a side wall of the body (10) and coupling to the magnetic field.

公开(公告)号：US07167454B2

公开(公告)日：2007-01-23

申请号：US09773418

申请日：2001-02-01

申请人： Richard J. Caldwell ,  Robert Fifield ,  David H. Evans

发明人： Richard J. Caldwell ,  Robert Fifield ,  David H. Evans

IPC分类号： H04B7/005

CPC分类号： H04L27/2655 ,  H04B7/2656 ,  H04L27/2657 ,  H04L27/2666

摘要： In a radio communication system comprising a plurality of stations (100a,100b,100c) operating in a peer-to-peer mode, each station stores information relating to the transmission parameters of other stations. Such information may include the frequency offset and received signal strength of signals from the other stations. One station acts as central controller and allocates time slots for transmission from a first station (100a) to a second station (100b). Before the first station (100a) receives a signal from the second station (100b) it makes initial adjustments to its receiver circuitry depending on the stored information about previous signals received from that station (100b). This simplifies the task of adjusting the receiver circuitry during the preamble of the signal transmitted by the second station (100b).

摘要翻译： 在包括以对等模式操作的多个站（100a，100b，100c）的无线电通信系统中，每个站存储与其他站的传输参数有关的信息。 这样的信息可以包括来自其他站的信号的频率偏移和接收信号强度。 一个站作为中央控制器并且分配用于从第一站（100a）到第二站（100b）的传输的时隙。 在第一站（100a）接收到来自第二站（100b）的信号之前，根据从该站接收的先前信号的存储信息（100b），对其接收机电路进行初始调整。 这简化了在由第二站（100b）发送的信号的前导码段期间调整接收机电路的任务。

公开(公告)号：US5386522A

公开(公告)日：1995-01-31

申请号：US815734

申请日：1991-12-30

申请人： David H. Evans

发明人： David H. Evans

IPC分类号： G06F11/36 ,  G06F12/10 ,  G06F12/08 ,  G06F11/00 ,  G06F11/30

CPC分类号： G06F11/362 ,  G06F12/10

摘要： The physical memory of a computer may not be directly accessable to the operator during the operation of a program due to the operational requirements of the operating system. Direct access to the physical memory of the computer during such operation may be possible through the aliasing of the physical memory locations and the creation of virtual alias addresses which will then give operator the necessary control to directly access any memory location thereby permitting the debugging of the program.

摘要翻译： 由于操作系统的操作要求，计算机的物理存储器在程序运行期间可能无法直接访问操作员。 可以通过物理存储器位置的混叠和虚拟别名地址的创建来直接访问计算机的物理存储器，然后虚拟别名地址将为操作者提供必要的控制，以直接访问任何存储器位置，从而允许调试 程序。

公开(公告)号：US5211703A

公开(公告)日：1993-05-18

申请号：US603332

申请日：1990-10-24

申请人： Jurek Ferleger ,  David H. Evans

发明人： Jurek Ferleger ,  David H. Evans

IPC分类号： F01D9/02 ,  F01D5/14

CPC分类号： F01D5/141 ,  Y10S416/05

摘要： A stationary blade of a steam turbine having a rotor and an inner cylinder for mounting the stationary blade in a row with plural identical stationary blades, comprising an airfoil having a leading edge, a trailing edge, a pressure-side concave surface and suction-side convex surface extending between the leading and trailing edges. A stagger angle being defined by as an angle of a chord between the leading and trailing edges to a longitudinal axis of the rotor; an outer ring for connecting a proximal end of the airfoil to the inner cylinder; an inner ring connected to a distal end of the airfoil; and a seal assembly carried by the inner ring and sealingly engaging the rotor; wherein the stagger angle ranges from about 42.degree. at the distal end of the airfoil to about 52.degree. at the proximal end.

摘要翻译： 一种蒸汽轮机的固定叶片，具有转子和内筒，用于将固定叶片安装成具有多个相同的固定叶片的行，包括具有前缘，后缘，压力侧凹面和吸力侧的翼型 凸表面在前缘和后缘之间延伸。 交错角由前缘和后缘之间的弦的角度定义为转子的纵向轴线; 用于将翼型件的近端连接到内筒的外圈; 连接到所述翼型件的远端的内圈; 以及由所述内圈承载并密封地接合所述转子的密封组件; 其中交错角在翼型的远端处从大约42°到近端的大约52°。

公开(公告)号：US5203673A

公开(公告)日：1993-04-20

申请号：US823532

申请日：1992-01-21

申请人： David H. Evans

发明人： David H. Evans

IPC分类号： F01D11/08 ,  F01D11/22 ,  F02C7/28

CPC分类号： F01D11/22

摘要： An apparatus is provided for controlling rotating blade tip clearance in a turbo-machine utilizing conical tipped blades. The apparatus comprises an approximately conical blade ring mounted for axially sliding displacement in the turbo-machine cylinder. The conical blade ring encircles the tips of the rotating blades and forms a blade tip clearance therebetween. The tip clearance is controlled during operation of the turbo-machine by axially displacing the conical blade ring. Piston cylinders, actuated by pressurized fluid extracted from the turbo-machine, are used to displace the blade ring. Springs, adapted to bias the blade ring into a position of increased tip clearance, oppose the piston cylinder so that failure of the piston cylinder will not result in a loss of tip clearance. A blade tip clearance sensor transmits information on the tip clearance to a controller that automatically adjusts the blade ring axial position to continuously maintain the optimum tip clearance by regulating the pressure of the fluid supplied to the piston cylinders.

摘要翻译： 提供了一种用于在涡轮机中利用锥形尖叶来控制旋转叶片顶端间隙的装置。 该装置包括安装用于在涡轮机气缸中轴向滑动位移的大致圆锥形的叶片环。 锥形叶片环围绕旋转叶片的尖端并在它们之间形成叶片顶端间隙。 通过轴向移动锥形叶片环，在涡轮机操作期间控制顶端间隙。 由涡轮机提取的加压流体致动的活塞气缸用于移动叶片环。 弹簧适于将叶片环偏置到增加的顶端间隙的位置，与活塞气缸相对，使得活塞气缸的故障不会导致顶端间隙的损失。 叶片间隙传感器将关于尖端间隙的信息传送到控制器，控制器通过调节供应到活塞气缸的流体的压力来自动调节叶片环的轴向位置以连续地保持最佳的顶端间隙。

公开(公告)号：US4878810A

公开(公告)日：1989-11-07

申请号：US196691

申请日：1988-05-20

申请人： David H. Evans

发明人： David H. Evans

IPC分类号： F01D5/16 ,  F01D5/20

CPC分类号： F01D5/16 ,  F01D5/20 ,  F05D2260/961 ,  Y10S416/50

摘要： Within a rotor blade row of a steam turbine, rotor blades having one resonant frequency alternate with rotor blades having a second, different resonant frequency. The two different resonant frequencies are achieved by profiling the tips of every other rotor blade.

摘要翻译： 在蒸汽轮机的转子叶片排中，具有一个谐振频率的转子叶片与具有第二不同谐振频率的转子叶片交替。 通过对每个其他转子叶片的尖端进行成形来实现两个不同的谐振频率。