Ultrasonic signal processor for power doppler imaging in a hand held ultrasonic diagnostic instrument
    3.
    发明授权
    Ultrasonic signal processor for power doppler imaging in a hand held ultrasonic diagnostic instrument 有权
    超声波信号处理器用于手持超声波诊断仪器中的多普勒成像

    公开(公告)号:US06383139B1

    公开(公告)日:2002-05-07

    申请号:US09426088

    申请日:1999-10-22

    IPC分类号: A61B800

    摘要: A hand held ultrasonic instrument is provided in a portable unit which performs both B mode and Doppler imaging. The instrument includes a transducer array mounted in a hand-held enclosure, with an integrated circuit transceiver connected to the elements of the array for the reception of echo signals. A digital signal processing circuit performs both B mode and Doppler signal processing such as filtering including wall filtering matrix and Hartley transform matrix functions, detection and Doppler estimation, as well as advanced functions such as assembly of multiple zone focused scanlines, synthetic aperture formation, depth dependent filtering, speckle reduction, flash suppression, and frame averaging. The advent of color flow imaging based on Doppler frequency estimation in medical ultrasound addresses a need for rapid assessment of overall flow characteristics in cardiac care. Typical prior art implementation utilize a high degree of temporal filtering in order to enhance the flow signal, but makes the image slow to respond to changes in flow. This is true of both directional and non-directional implementations, and is necessitated by the instability of traditional estimation techniques that are derived from older color flow techniques. A significant advantage of the present invention is excellent stability of both power and direction estimates.

    摘要翻译: 手持式超声波仪器设置在执行B模式和多普勒成像的便携式单元中。 该仪器包括安装在手持外壳中的换能器阵列,集成电路收发器连接到阵列的元件以接收回波信号。 数字信号处理电路执行B模式和多普勒信号处理,例如包括壁滤波矩阵和Hartley变换矩阵函数的滤波,检测和多普勒估计,以及诸如组合多区域聚焦扫描线,合成孔径形成,深度 相关滤波,散斑减少,闪光抑制和帧平均。 基于医学超声多普勒频率估计的彩色流动成像的出现,需要快速评估心脏保健中的整体流量特征。 典型的现有技术实现利用高度的时间滤波来增强流量信号,但是使得图像缓慢地响应于流动的变化。 对于定向和非方向性实现都是如此,并且由于旧颜色流技术导出的传统估计技术的不稳定性是必需的。 本发明的显着优点是功率和方向估计的优异的稳定性。

    Label switched routing in SAS expanders
    4.
    发明授权
    Label switched routing in SAS expanders 有权
    在SAS扩展器中标记交换路由

    公开(公告)号:US07876713B2

    公开(公告)日:2011-01-25

    申请号:US11823995

    申请日:2007-06-29

    CPC分类号: H04L45/00 H04L45/50 H04L45/66

    摘要: The attaching of labels to an OPEN frame and applying label switched routing to SAS expanders is disclosed to eliminate the need for large routing tables in SAS networks. A label stack is inserted into the OPEN frame by the initiator, prior to the OPEN frame being transmitted. Each label contains the egress port for a SAS expander in the transmit path. Each SAS expander to be participating in the connection reads the labels to determine the egress port to connect to and through which data is to be sent. The SAS expander marks its label invalid or discards it and forwards the OPEN frame to the egress port where the next SAS expander will look for the first valid label. The process repeats until the OPEN frame reaches the edge device, at which time all labels are discarded and the OPEN frame is forwarded to the end device.

    摘要翻译: 公开了将标签附加到OPEN帧并且将标签交换路由应用于SAS扩展器以消除对SAS网络中的大路由表的需要。 在发送OPEN帧之前,发起者将标签堆栈插入OPEN帧。 每个标签包含发送路径中SAS扩展器的出口端口。 要参与连接的每个SAS扩展器都会读取标签,以确定要连接的出口端口以及要发送的数据。 SAS扩展器标记其标签无效或丢弃它,并将OPEN帧转发到出口端口,下一个SAS扩展器将寻找第一个有效标签。 该过程重复,直到OPEN帧到达边缘设备,此时所有标签都被丢弃,OPEN帧被转发到终端设备。

    Prevention of head of line blocking in a multi-rate switched Fibre Channel loop attached system
    5.
    发明授权
    Prevention of head of line blocking in a multi-rate switched Fibre Channel loop attached system 有权
    在多速率交换光纤通道环路连接系统中防止线路阻塞的头部

    公开(公告)号:US07586850B2

    公开(公告)日:2009-09-08

    申请号:US11064550

    申请日:2005-02-23

    IPC分类号: H04L12/26

    CPC分类号: H04L49/508 H04L49/357

    摘要: A method is disclosed for maintaining a table of recent accesses for each port for use in predicting whether a request for data from a source device is likely to be sent to a high speed or low speed destination device. The table of recent accesses lists every source device attached to that port and the speed of the destination device with the most recent access to each source device. When an OPN primitive is received at the source port, the source device is identified and used with the table of recent accesses to predict whether the destination device is likely to be high speed or low speed, and ultimately whether to send data from the source device or reject the request.

    摘要翻译: 公开了一种用于维护每个端口的最近访问的表的方法,用于预测来自源设备的数据的请求是否可能被发送到高速或低速目的地设备。 最近访问表列出了连接到该端口的每个源设备和目标设备的速度,最近访问每个源设备。 当在源端口接收到OPN原语时,源设备被识别并与最近的访问表一起使用以预测目的地设备是否可能是高速或低速的,并且最终是否从源设备发送数据 或拒绝该请求。

    Controlling device access fairness in switched fibre channel fabric loop attachment systems
    6.
    发明授权
    Controlling device access fairness in switched fibre channel fabric loop attachment systems 有权
    在交换光纤通道结构环路连接系统中控制设备访问公平性

    公开(公告)号:US07813360B2

    公开(公告)日:2010-10-12

    申请号:US11044444

    申请日:2005-01-26

    摘要: Embodiments of the present invention are directed to controlling device access fairness in frame-based switches by automatically and continuously counting the number of actively communicating devices connected to each port and the type of devices connected to each port, and adjusting fairness accordingly. During a sampling window, the number of active devices and the type of devices connected to each port is determined. At the start of each fairness window, a weighted number of slots are assigned to each port based on the number of active devices connected to each port and the type of devices connected to that port. Within a single fairness window, each port is able to provide device accesses to the frame-based switch in accordance with the number of slots assigned to that port.

    摘要翻译: 本发明的实施例涉及通过自动连续计数连接到每个端口的主动通信设备的数量和连接到每个端口的设备的类型,并相应地调整公平性来控制基于帧的交换机中的设备接入公平性。 在采样窗口期间,确定有源设备的数量和连接到每个端口的设备类型。 在每个公平窗口的开始,基于连接到每个端口的活动设备的数量和连接到该端口的设备的类型,向每个端口分配加权的时隙数。 在单个公平窗口中,每个端口能够根据分配给该端口的时隙数量向基于帧的交换机提供设备访问。

    Label switched routing in SAS expanders
    7.
    发明申请
    Label switched routing in SAS expanders 有权
    在SAS扩展器中标记交换路由

    公开(公告)号:US20090006697A1

    公开(公告)日:2009-01-01

    申请号:US11823995

    申请日:2007-06-29

    IPC分类号: G06F13/40

    CPC分类号: H04L45/00 H04L45/50 H04L45/66

    摘要: The attaching of labels to an OPEN frame and applying label switched routing to SAS expanders is disclosed to eliminate the need for large routing tables in SAS networks. A label stack is inserted into the OPEN frame by the initiator, prior to the OPEN frame being transmitted. Each label contains the egress port for a SAS expander in the transmit path. Each SAS expander to be participating in the connection reads the labels to determine the egress port to connect to and through which data is to be sent. The SAS expander marks its label invalid or discards it and forwards the OPEN frame to the egress port where the next SAS expander will look for the first valid label. The process repeats until the OPEN frame reaches the edge device, at which time all labels are discarded and the OPEN frame is forwarded to the end device.

    摘要翻译: 公开了将标签附加到OPEN帧并且将标签交换路由应用于SAS扩展器以消除对SAS网络中的大路由表的需要。 在发送OPEN帧之前,发起者将标签堆栈插入OPEN帧。 每个标签包含发送路径中SAS扩展器的出口端口。 要参与连接的每个SAS扩展器都会读取标签,以确定要连接的出口端口以及要发送的数据。 SAS扩展器标记其标签无效或丢弃它,并将OPEN帧转发到出口端口,下一个SAS扩展器将寻找第一个有效标签。 该过程重复,直到OPEN帧到达边缘设备,此时所有标签都被丢弃,OPEN帧被转发到终端设备。

    Dynamically controlling fair access to a system packet interface attached switch enclosure
    8.
    发明授权
    Dynamically controlling fair access to a system packet interface attached switch enclosure 有权
    动态控制公平访问系统分组接口连接的交换机机箱

    公开(公告)号:US07839865B2

    公开(公告)日:2010-11-23

    申请号:US11044916

    申请日:2005-01-26

    摘要: A method for maintaining configurable and dynamically adjustable per-channel local port/bypass port access ratios in the multiple SOCs within an SPI-attached frame-based switch enclosure to improve the access fairness of devices upstream from the destination device is disclosed. A frame-based switch enclosure may include multiple SPI-attached SOCs, each SOC containing a plurality of ports, with one or more devices connected to each port and one virtual channel assigned to each port. Given a frame-based switch enclosure with N SOCs, the local port/bypass port access ratio for a particular SOC and a given virtual channel, where the particular SOC is M hops away from the SOC having a port corresponding to the given virtual channel and M>0, is 1:(N−M−1), while the local port/bypass port access ratio for the SOC (and the given virtual channel) having the port corresponding to the given virtual channel (i.e. the SOC for which M=0) is 0:0.

    摘要翻译: 公开了一种用于在基于SPI的基于帧的交换机机箱内的多个SOC中维护可配置且可动态调整的每通道本地端口/旁路端口访问比率的方法,以提高从目的地设备上游的设备的接入公平性。 基于帧的交换机机箱可以包括多个SPI连接的SOC,每个SOC包含多个端口,一个或多个设备连接到每个端口,一个虚拟通道分配给每个端口。 给定具有N个SOC的基于帧的交换机机箱,特定SOC和给定虚拟信道的本地端口/旁路端口接入比率,其中特定SOC是与具有对应于给定虚拟信道的端口的SOC跳过, M> 0,为1:(N-M-1),而具有对应于给定虚拟信道的端口的SOC(和给定虚拟信道)的本地端口/旁路端口接入比率(即,M = 0)为0:0。