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    • 4. 发明申请
    • Pulsation attenuator for a fluidic system
    • 用于流体系统的脉冲衰减器
    • US20070125436A1
    • 2007-06-07
    • US11297667
    • 2005-12-07
    • Collin RichSteven Martin
    • Collin RichSteven Martin
    • F16L55/04
    • F15B1/021F04B43/12F15B1/10F15B21/008F15B2201/205F15B2201/215F15B2201/3151G01N15/1404Y10T137/3118Y10T137/7792
    • A pulsation attenuator for a fluidic system with a fluidic pump. The pulsation attenuator includes a fluidic channel, a first fluidic device adapted to attenuate pulsations with a shallow rolloff slope, and a second fluidic device adapted to attenuate pulsations with a shallow rolloff slope. The first fluidic device and the second fluidic device are connected to the fluidic channel such that they cooperatively attenuate pulsations with a steep rolloff slope. Preferably, the first fluidic device includes a first fluidic resistor and a first fluidic capacitor, and the second fluidic device includes a second fluidic resistor and a second fluidic capacitor. Preferably, the pulsation attenuator is arranged, similar a second-order low-pass filter, in the following order: (1) first fluidic resistor, (2) first fluidic capacitor, (3) second fluidic resistor, and (4) second fluidic capacitor.
    • 一种具有流体泵的流体系统的脉动衰减器。 脉动衰减器包括流体通道,适于衰减具有浅滚降斜率的脉动的第一流体装置,以及适于以浅滚降斜率衰减脉动的第二流体装置。 第一流体装置和第二流体装置连接到流体通道,使得它们以陡峭的滚降斜率协同地衰减脉动。 优选地,第一流体装置包括第一流体电阻器和第一流体电容器,并且第二流体装置包括第二流体电阻器和第二流体电容器。 优选地,按照以下顺序将脉动衰减器类似于二阶低通滤波器:(1)第一流体电阻器,(2)第一流体电容器,(3)第二流体电阻器,和(4)第二流体电阻器 电容器。
    • 5. 发明申请
    • Pmt signal correlation filter
    • Pmt信号相关滤波器
    • US20060151707A1
    • 2006-07-13
    • US10561983
    • 2004-06-01
    • Donald WellnitzMichael GeaganSteven Martin
    • Donald WellnitzMichael GeaganSteven Martin
    • G01T1/20
    • G01T1/1642A61B6/037G01T1/1615G01T1/1647
    • A method of generating a filter (40) for a nuclear medicine system (20) where the filter selects valid detected radiation events for image processing. A dataset (60) is provided that is indicative of a plurality of emitted radiation events occurring over a predetermined period of time. Signals representative of the response of a detector to the dataset of the plurality of emitted radiation events are generated. A pattern is determined (66) based on a correlation of a plurality of signals resulting from the response of the detector to a plurality of single radiation events in the dataset. A filter is generated (74) based on the correlation pattern. A method and apparatus of using the generated filter is also disclosed.
    • 一种生成核医学系统(20)的过滤器(40)的方法,其中过滤器选择用于图像处理的有效检测到的辐射事件。 提供了指示在预定时间段内发生的多个发射辐射事件的数据集(60)。 生成代表检测器对多个发射的辐射事件的数据集的响应的信号。 基于由检测器的响应产生的多个信号与数据集中的多个单个辐射事件的相关性确定模式(66)。 基于相关图案生成滤波器(74)。 还公开了使用所生成的滤波器的方法和装置。
    • 7. 发明申请
    • Third party, broadcast, multicast and conditional RDMA operations
    • 第三方,广播,组播和有条件的RDMA操作
    • US20060045099A1
    • 2006-03-02
    • US11017355
    • 2004-12-20
    • Fu Chung ChangPiyush ChaudharyJason GoscinskiJohn HoustonSteven Martin
    • Fu Chung ChangPiyush ChaudharyJason GoscinskiJohn HoustonSteven Martin
    • H04L12/56H04L12/28
    • H04L69/16H04L69/166
    • In a multinode data processing system in which nodes exchange information over a network or through a switch, the mechanism which enables out-of-order data transfer via Remote Direct Memory Access (RDMA) also provides a corresponding ability to carry out broadcast operations, multicast operations, third party operations and conditional RDMA operations. In a broadcast operation a source node transfers data packets in RDMA fashion to a plurality of destination nodes. Multicast operation works similarly except that distribution is selective. In third party operations a single central node in a cluster or network manages the transfer of data in RDMA fashion between other nodes or creates a mechanism for allowing a directed distribution of data between nodes. In conditional operation mode the transfer of data is conditioned upon one or more events occurring in either the source node or in the destination node.
    • 在节点通过网络交换信息或通过交换机交换信息的多节点数据处理系统中,通过远程直接存储器访问(RDMA)实现无序数据传输的机制也提供了相应的能力来执行广播操作,组播 操作,第三方操作和有条件的RDMA操作。 在广播操作中,源节点以RDMA方式将数据分组传送到多个目的节点。 组播操作的工作方式类似,除了分发是有选择性的。 在第三方操作中,集群或网络中的单个中央节点以RDMA方式在其他节点之间管理数据传输,或者创建一种允许在节点之间定向分发数据的机制。 在条件操作模式中,数据的传输是在源节点或目标节点中发生的一个或多个事件的条件。