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公开(公告)号：US10718433B2
公开(公告)日：2020-07-21
申请号：US15959491
申请日：2018-04-23
申请人： Paul Henry Robbins
发明人： Paul Henry Robbins
摘要： A wear ring for a piston of a die-casting apparatus comprises an annular body having a gap extending therethrough, the gap being configured to define at least two circumferentially offset pairs of circumferentially spaced apart facing surfaces. The annular body comprises an axial end face having at least one arc-shaped recess formed therein.
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公开(公告)号：US09451451B2
公开(公告)日：2016-09-20
申请号：US14348208
申请日：2012-09-28
发明人： Brennen Chow , Hunter MacDonald , David Yarish , Thomas Darcie , Stephen Neville , Anthonty Sean Kroeker
CPC分类号： H04W28/0215 , H04L67/30 , H04L67/306 , H04W4/02 , H04W4/50 , H04W8/18 , H04W8/245 , H04W28/0242 , H04W28/0247 , H04W84/045 , H04W84/12 , H04W88/08
摘要： A system for managing the device operation rules that govern a device's operation, includes a profiling server configured to receive data from one or more data sources and a processor to aggregate and analyze the received data to dynamically generate profiles for distribution to a plurality of devices. The devices, which are in communication with the profiling server, being responsive to profiles generated by the profiling server to create, update, or modify the said operation rules and communicate with the profiling server the performance of the said profiles, the said rules, and/or the said device. The system allows the device operation rules to be dynamically updated in accordance with changing network conditions, and also can provide analytics information to third parties.
摘要翻译： 用于管理控制设备操作的设备操作规则的系统包括被配置为从一个或多个数据源接收数据的分析服务器以及处理器来聚合和分析所接收的数据以动态地生成用于分发到多个设备的简档。 与分析服务器通信的设备响应于由分析服务器生成的简档来创建，更新或修改所述操作规则并与分析服务器通信所述简档，所述规则和 /或所述设备。 系统允许根据不断变化的网络条件动态地更新设备操作规则，并且还可以向第三方提供分析信息。
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公开(公告)号：US09444474B2
公开(公告)日：2016-09-13
申请号：US14698966
申请日：2015-04-29
发明人： Kamran Rahbar , Qu Gary Jin
CPC分类号： H03L7/099 , H03B5/32 , H03L7/07 , H03L7/093 , H03L7/0991
摘要： A multi-loop phase locked loop (PLL) system with noise attenuation has a first PLL including a local oscillator, a second PLL coupled to an output of the first PLL, and a third PLL in a feedback path between the second PLL and first PLL. A first phase comparator compares an input signal with the first feedback signal to generate a first phase error signal for the first PLL. The first phase error signal is multiplied by a scaling factor k determining the amount of noise attenuation. The third PLL has a bandwidth preferably at least ten times higher than the second PLL so that the overall transfer function of the second and third PLLs is approximately the transfer function of the second PLL. The transfer function of the third PLL is multiplied by a scaling factor 1/k. This arrangement allows the use of an uncompensated local oscillator in the first PLL. The noise generated in the uncompensated local oscillator is reduced by the attenuation factor k.
摘要翻译： 具有噪声衰减的多回路锁相环（PLL）系统具有包括本地振荡器的第一PLL，耦合到第一PLL的输出的第二PLL以及第二PLL与第一PLL之间的反馈路径中的第三PLL 。 第一相位比较器将输入信号与第一反馈信号进行比较，以产生用于第一PLL的第一相位误差信号。 第一相位误差信号乘以确定噪声衰减量的缩放因子k。 第三PLL具有比第二PLL优选至少十倍的带宽，使得第二和第三PLL的总体传递函数近似为第二PLL的传递函数。 第三PLL的传递函数乘以缩放因子1 / k。 这种布置允许在第一PLL中使用未补偿的本地振荡器。 在未补偿的本地振荡器中产生的噪声被衰减因子k减小。
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公开(公告)号：US09331804B2
公开(公告)日：2016-05-03
申请号：US13899720
申请日：2013-05-22
发明人： Kin Yee Wong , Peter Roberts
CPC分类号： H04J3/0638 , H04J3/0658 , H04J3/0688 , H04J3/12 , H04J3/14
摘要： A method and system are provided for improving maintenance of timing information when a node enters holdover due to a lost connection between a sub-network and a reference clock. Each node within the sub-network sends information concerning the drift of its local oscillator to a single node, and the single node uses this information to determine timing information for the entire sub-network. The single node may also use knowledge of the characteristics of the local oscillators. In this way, drift from the reference clock can be minimized without incurring significant added hardware costs.
摘要翻译： 提供了一种方法和系统，用于在节点由于子网与参考时钟之间的丢失连接而进入保持状态时改善维护定时信息。 子网内的每个节点向本地振荡器发送有关本地振荡器漂移的信息，单个节点使用该信息来确定整个子网的定时信息。 单个节点还可以使用本地振荡器的特性的知识。 以这种方式，可以使参考时钟的漂移最小化，而不会导致显着增加的硬件成本。
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公开(公告)号：US09192295B1
公开(公告)日：2015-11-24
申请号：US14301626
申请日：2014-06-11
申请人： L&R Medical Inc.
发明人： Mark Hathaway , Rishard Weitz
CPC分类号： A61B3/102 , A61B3/1225 , G01B9/02063 , G01B9/02091 , G02B7/36
摘要： In an OCT system, the autocorrelation signal depends only on the strength of the signal in the object arm scattered back from a patient's retina and is a result of different reflections from different layers of the retina interfering with each other. The strength of the autocorrelation signal depends on how well focused the system is. Normally the autocorrelation signal is treated as noise. However by removing the reference path signal, the autocorrelation signal is easily measured and analyzed. The optimal focus can the then be found by adjusting the focus value until the autocorrelation signal is maximized.
摘要翻译： 在OCT系统中，自相关信号仅取决于从患者视网膜分散回放的物体臂中的信号的强度，并且是来自视网膜的不同层的不同反射相互干扰的结果。 自相关信号的强度取决于系统的重点。 通常将自相关信号视为噪声。 然而，通过去除参考路径信号，可以容易地测量和分析自相关信号。 然后通过调整焦点值直到自相关信号最大化才能找到最佳焦点。
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公开(公告)号：US09059811B2
公开(公告)日：2015-06-16
申请号：US13894638
申请日：2013-05-15
发明人： Jun Huang , Gary Q. Jin
CPC分类号： H04J3/0682 , H04J3/0664 , H04L43/0852
摘要： In a computer-implemented method of adjusting a local clock at a receiver in a packet network, the local clock is generated by a phase locked loop locked to a master clock with the aid of time-stamped timing packets arriving over the network from the master clock with a packet delay distribution about a nominal delay. The timing packets are filtered to adjust for the packet delay distribution. A control input for the phase locked loop is derived from the timing packets. The amount of skew in the packet delay distribution about the nominal delay is determined, and the arrival times of timing packets are then selectively modified to correct for the amount of skew in the packet delay variation distribution prior to filtering the timing packets.
摘要翻译： 在以分组网络中的接收机调整本地时钟的计算机实现的方法中，通过锁定到主时钟的锁相环产生本地时钟，借助于来自主设备的网络到达的时间戳定时分组 具有关于标称延迟的分组延迟分布的时钟。 对数据包延迟分布进行滤波以调整定时数据包。 从定时包导出锁相环的控制输入。 确定关于标称延迟的分组延迟分布中的偏斜量，然后选择性地修改定时分组的到达时间，以在滤波定时分组之前校正分组延迟变化分布中的偏斜量。
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公开(公告)号：US09002546B2
公开(公告)日：2015-04-07
申请号：US13494566
申请日：2012-06-12
申请人： Firth Whitwam , Abe Kanner
发明人： Firth Whitwam , Abe Kanner
摘要： A vehicle management system for automatic vehicles running on a guideway independent of wayside signals or interlocking devices includes intelligent on-board controllers on each vehicle for controlling operation of the vehicle. The on-board controllers communicate with each other as well as individual wayside devices and a data storage system to identify available assets needed to move along the guideway and to reserve these assets for their associated vehicle.
摘要翻译： 独立于路边信号或互锁装置的在导轨上行驶的自动车辆的车辆管理系统包括每个车辆上的智能车载控制器，用于控制车辆的操作。 车载控制器彼此通信以及各路旁设备和数据存储系统，以识别沿导轨移动所需的可用资产，并为其相关联的车辆预留这些资产。
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公开(公告)号：US08975193B2
公开(公告)日：2015-03-10
申请号：US13196421
申请日：2011-08-02
申请人： Robert Johnstone , Stephane Martel
发明人： Robert Johnstone , Stephane Martel
CPC分类号： B81C1/00182 , B81B2201/054 , B81C2201/019 , B81C2203/0735
摘要： A microfabricated device is fabricated by depositing a first metal layer on a substrate to provide a first electrode of an electrostatic actuator, depositing a first structural polymer layer over the first metal layer, depositing a second metal layer over said first structural polymer layer to form a second electrode of the electrostatic actuator, depositing an insulating layer over said first structural polymer layer, planarizing the insulating layer, etching the first structural polymer layer through the insulating layer and the second metal layer to undercut the second metal layer, providing additional pre-formed structural polymer layers, at least one of which has been previously patterned, and finally bonding the additional structural layers in the form of a stack over the planarized second insulating layer to one or more microfluidic channels. The technique can also be used to make cross over channels in devices without electrostatic actuators, in which case the metal layers can be omitted.
摘要翻译： 通过在衬底上沉积第一金属层以提供静电致动器的第一电极，在第一金属层上方沉积第一结构聚合物层，在第一结构聚合物层上沉积第二金属层以形成微结构聚合物层 静电致动器的第二电极，在所述第一结构聚合物层上沉积绝缘层，平坦化绝缘层，通过绝缘层和第二金属层蚀刻第一结构聚合物层以切割第二金属层，从而提供额外的预成形 结构聚合物层，其中至少一个已经被预先图案化，并且最后将平坦化的第二绝缘层上的堆叠形式的附加结构层结合到一个或多个微流体通道。 该技术也可以用于在没有静电致动器的装置中跨越通道，在这种情况下可以省略金属层。
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公开(公告)号：US08817603B2
公开(公告)日：2014-08-26
申请号：US13536340
申请日：2012-06-28
申请人： Tom Houtman , Brian Armbruster , Ron Territo , Zhenhong Cheng , Wayne McPherson , Sean Faulkner
发明人： Tom Houtman , Brian Armbruster , Ron Territo , Zhenhong Cheng , Wayne McPherson , Sean Faulkner
CPC分类号： H04B7/18576 , H04B7/2041
摘要： In a satellite-based messaging system messages are exchanged between a ground station and mobile terminals over a wide geographic area covered by multiple satellite beams. Each beam contains one or more carrier frequencies. A message processing center is configured to provision a frame comprising a plurality of subframes to carry data over a forward link to the mobile terminals; hop between beams in the forward link and assign each subframe within a frame to a specific satellite beam; provision a transport medium in the form of virtual carriers each defined by one or more carrier frequency/beam hop combinations, wherein each virtual carrier is assigned a unique virtual carrier identifier; and notify the mobile terminals of carrier frequency/hop combinations for assigned virtual carrier identifiers.
摘要翻译： 在基于卫星的消息系统中，在多个卫星光束覆盖的广泛地理区域之间，在地面站和移动终端之间交换消息。 每个波束包含一个或多个载波频率。 消息处理中心被配置为提供包括多个子帧的帧以通过前向链路携带数据到移动终端; 在前向链路中的波束之间跳转，并将帧内的每个子帧分配给特定的卫星波束; 提供每个由一个或多个载波频率/波束组合定义的虚拟载波形式的传输介质，其中每个虚拟载波被分配唯一的虚拟载波标识符; 并向移动终端通知用于分配的虚拟载波标识符的载波频率/跳跃组合。
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公开(公告)号：US08817371B1
公开(公告)日：2014-08-26
申请号：US12512007
申请日：2009-07-29
CPC分类号： G02B27/283
摘要： A polarizing beam splitter has a pair of opposed transparent prism substrates with a refractive index n0, and providing at least one input port and at least one output port. The input port accepts light incident over a range of operational angles including a central operational angle. A multilayer thin film structure is sandwiched between the pair of opposed transparent substrates and consists essentially of a plurality of layers l1 . . . lm having respective refractive indices n1 . . . nm, wherein at least three of said refractive indices n1 . . . nm are different, and wherein the refractive index of the substrates n0 lies between the highest refractive index nH and lowest refractive index nL, and wherein nH, nL and n0 define a Brewster angle θ0B: θ 0 B = arcsin ( n L n H n 0 n L 2 + n H 2 ) , and a critical angle θc: θ C = arcsin ( n L n 0 ) . The refractive indices n0 and n1 . . . nm are selected such that the central operational angle for a beam incident on the multiple thin film structure lies above the Brewster angle θ0B and such that most or all the operational angles defined by said input port lie above the Brewster angle θ0B. For p-polarized light at least one optical admittance of the layers with refractive indices n1 . . . nm is lower or very close to that of the optical admittance of the substrate for the operational angles such that the thin film polarizing beam-splitter favors the transmittance for p-polarized light incident at that input port such that most of the p-polarized light is transmitted through the multiple thin film structure. For s-polarized light the polarizing beam-splitter acts as a high reflective coating to favor the reflectance for s-polarized light incident at the input port such that most of the s-polarized light is reflected from said multiple thin film structure. The polarizing beam splitter is compact and yet remains functional over a wide range of operational angles.
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