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    Active resistive shimming fro MRI devices
    1.
    发明授权
    Active resistive shimming fro MRI devices 有权
    磁共振成像装置的主动阻力垫片

    公开(公告)号：US08981779B2

    公开(公告)日：2015-03-17

    申请号：US13324850

    申请日：2011-12-13

    申请人： Shmaryu Shvartsman ,  James Dempsey ,  Gordon DeMeester

    发明人： Shmaryu Shvartsman ,  James Dempsey ,  Gordon DeMeester

    IPC分类号： G01V3/00 ,  G01R33/3875 ,  G01R33/38 ,  G01R33/48

    CPC分类号： G01R33/3875 ,  G01R33/3642 ,  G01R33/3806 ,  G01R33/385 ,  G01R33/4808 ,  G01R33/481 ,  G01R33/4812 ,  G01R33/4814

    摘要： Active resistive shim coil assemblies may be used in magnetic resonance imaging (MRI) systems to reduce in-homogeneity of the magnetic field in the imaging volume. Disclosed embodiments may be used with continuous systems, gapped cylindrical systems, or vertically gapped systems. Disclosed embodiments may also be used with an open MRI system and can be used with an instrument placed in the gap of the MRI system. An exemplary embodiment of the active resistive shim coil assembly of the present disclosure includes active resistive shim coils each operable to be energized by separate currents through a plurality of power channels. In some embodiments, the disclosed active resistive shim coil assemblies allow for various degrees of freedom to shim out field in-homogeneity.

    摘要翻译： 有源电阻衬片线圈组件可用于磁共振成像（MRI）系统，以减小成像体积中磁场的均匀性。 公开的实施例可以与连续系统，间隙圆柱形系统或垂直间隙系统一起使用。 公开的实施例也可以与开放式MRI系统一起使用，并且可以与放置在MRI系统的间隙中的仪器一起使用。 本公开的有源电阻衬片线圈组件的示例性实施例包括有源电阻衬垫线圈，其可操作以由通过多个功率通道的分离电流激励。 在一些实施例中，所公开的主动阻抗衬片线圈组件允许不同程度的自由度来均匀地摆放场。

    PCI bus with reduced number of signals
    2.
    发明授权
    PCI bus with reduced number of signals 失效
    PCI总线信号数量减少

    公开(公告)号：US5826048A

    公开(公告)日：1998-10-20

    申请号：US790303

    申请日：1997-01-31

    申请人： Morgan James Dempsey ,  Rajeev Jayavant

    发明人： Morgan James Dempsey ,  Rajeev Jayavant

    IPC分类号： G06F13/40 ,  G06F13/00

    CPC分类号： G06F13/4018

    摘要： A Mini-PCI (MPCI) interface, and associated circuits and methods are provided for connecting a Peripheral Component Interconnect (PCI) device to one or more external devices. The MPCI interface, circuits and methods provide for a substantial if not full implementation of a PCI Local Bus without requiring the standard number of pins, traces, or signals. The MPCI interface includes a PCI/MPCI bridge connected between a PCI bus and to up to eight external devices in the form of MPCI devices and linear memory devices. The PCI/MPCI bridge is capable of receiving an incoming PCI transaction and multiplexing some of its signals together to create a corresponding incoming MPCI transaction. This incoming MPCI transaction may then be passed over an MPCI bus, having fewer lines and optimally operating at a higher frequency, the external devices. The process is reversed for outgoing transactions, i.e., the MPCI transactions are de-multiplexed to create PCI transactions. Additionally, the MPCI interface may also be configured to provide for direct access to linearly addressed memory devices without adding a PCI interface to the external interface. The invention may be implemented through integrated circuitry and/or computer implemented instructions, and may be included within a personal computer.

    摘要翻译： 提供Mini-PCI（MPCI）接口以及相关的电路和方法，用于将外围组件互连（PCI）设备连接到一个或多个外部设备。 MPCI接口，电路和方法在不需要标准数量的引脚，迹线或信号的情况下提供完全实现的PCI本地总线。 MPCI接口包括连接在PCI总线和MPCI设备和线性存储器设备形式的多达八个外部设备之间的PCI / MPCI桥接器。 PCI / MPCI网桥能够接收进入的PCI事务并将其一些信号复用在一起以创建相应的传入MPCI事务。 然后，该传入的MPCI事务可以通过MPCI总线传递，具有较少的线路并且以更高的频率最佳地操作外部设备。 对于输出事务，该过程是反转的，即MPCI事务被解复用以创建PCI事务。 此外，MPCI接口还可以被配置为提供对线性寻址的存储器设备的直接访问，而不向外部接口添加PCI接口。 本发明可以通过集成电路和/或计算机实现的指令来实现，并且可以包括在个人计算机内。

    Integrated multi-function showerhead
    3.
    发明申请
    Integrated multi-function showerhead 有权
    集成多功能花洒

    公开(公告)号：US20070246578A1

    公开(公告)日：2007-10-25

    申请号：US11788086

    申请日：2007-04-19

    申请人： Jamy Bulan ,  James Dempsey ,  Timothy O'Brien ,  Harshil Parikh

    发明人： Jamy Bulan ,  James Dempsey ,  Timothy O'Brien ,  Harshil Parikh

    IPC分类号： B05B1/14 ,  A62C31/02 ,  A62C2/08

    CPC分类号： B05B1/18 ,  B05B1/16

    摘要： A showerhead has at least a first set of nozzles and a second set of nozzles for discharging water. The showerhead discharges water according to one of multiple water delivery functions, where a first water delivery function corresponds to water being discharged through only the first set of nozzles, a second water delivery function corresponds to water being discharged through only the second set of nozzles and a third water delivery function corresponds to water being discharged through the first and second sets of nozzles simultaneously. The spacing between the first set of nozzles and the second set of nozzles is carefully selected so that the third water delivery function corresponds to the integrated nozzles of the first and second sets of nozzles. As a result, the third water delivery function provides a coherent and balanced water flow resulting in a more pleasant feel.

    摘要翻译： 喷头具有至少第一组喷嘴和用于排放水的第二组喷嘴。 淋浴器根据多个输水功能之一排出水，其中第一输水功能对应于仅通过第一组喷嘴排出的水，第二输水功能对应于仅通过第二组喷嘴排出的水，以及 第三输水功能对应于同时通过第一组和第二组喷嘴排出的水。 仔细选择第一组喷嘴和第二组喷嘴之间的间隔，使得第三输水功能对应于第一组和第二组喷嘴的集成喷嘴。 结果，第三次输水功能提供了一致和平衡的水流，从而产生更舒适的感觉。

    Radiation therapy system using interior-point methods and convex models for intensity modulated fluence map optimization
    4.
    发明申请
    Radiation therapy system using interior-point methods and convex models for intensity modulated fluence map optimization 审中-公开
    使用内点法和凸模型进行强度调制注量地图优化的放射治疗系统

    公开(公告)号：US20050207531A1

    公开(公告)日：2005-09-22

    申请号：US11039331

    申请日：2005-01-20

    申请人： James Dempsey ,  Ravindra Ahuja ,  Arvind Kumar ,  Jonathan Li ,  H. Romeijn

    发明人： James Dempsey ,  Ravindra Ahuja ,  Arvind Kumar ,  Jonathan Li ,  H. Romeijn

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1031 ,  A61N5/1042

    摘要： A method of determining a treatment plan for intensity modulated radiation treatment (IMRT) divides a three-dimensional volume of a patient into a grid of dose voxels. At least a portion of the dose voxels are designated to belong to at least one target or to at least one critical structure. An ionizing radiation dose as delivered by a plurality of beamlets each having a beamlet intensity is modeled. A non-linear convex voxel-based penalty function model is provided for optimizing a fluence map. The fluence map defines the beamlet intensities for each of the plurality of beamlets. The model is then solved based on defined clinical criteria for the target and the critical structure using an interior point algorithm with dense column handling to obtain a globally optimal fluence map.

    摘要翻译： 确定强度调制辐射治疗（IMRT）的治疗计划的方法将患者的三维体积分成剂量体素的网格。 剂量体素的至少一部分被指定为属于至少一个靶或至少一个关键结构。 由多个具有子束强度的子束传送的电离辐射剂量被建模。 提供了一种非线性凸基于体素的惩罚函数模型，用于优化注量图。 注量图定义了多个子束中的每一个的子束强度。 然后使用具有密集列处理的内点算法，基于目标和临界结构的定义临床标准来解决该模型，以获得全局最优注量图。

    Method for introducing harmonics into an audio stream for improving three dimensional audio positioning
    5.
    发明授权
    Method for introducing harmonics into an audio stream for improving three dimensional audio positioning 失效
    将谐波引入到音频流中以改善三维音频定位的方法

    公开(公告)号：US06215879B1

    公开(公告)日：2001-04-10

    申请号：US08974131

    申请日：1997-11-19

    申请人： Morgan James Dempsey

    发明人： Morgan James Dempsey

    IPC分类号： H03G300

    CPC分类号： H04S1/007

    摘要： Method for introducing harmonics into an audio stream for improving three dimensional audio positioning. The method adds high frequency harmonics into sampled sound signals to replace high frequency sound components eliminated before sampling. By adding high frequency harmonics into the sampled sound signals, a “richer sound” will be produced. The resulting sampled sound signals will have a frequency spectrum containing a larger number of frequencies. Thus, the ear will have more cues to better position the sampled sound signals.

    摘要翻译： 将谐波引入到音频流中以改善三维音频定位的方法。 该方法将高频谐波添加到采样声音信号中，以取代采样之前消除​​的高频声音成分。 通过在采样的声音信号中增加高频谐波，将产生“更丰富的声音”。 所得到的采样声音信号将具有包含更多频率的频谱。 因此，耳朵将具有更多的线索以更好地定位采样的声音信号。

    Method and a system for the nonlinear storage of a texture map within a linear memory device
    6.
    发明授权
    Method and a system for the nonlinear storage of a texture map within a linear memory device 失效
    用于在线性存储器件内的纹理图的非线性存储的方法和系统

    公开(公告)号：US5861888A

    公开(公告)日：1999-01-19

    申请号：US753705

    申请日：1996-11-27

    申请人： Morgan James Dempsey

    发明人： Morgan James Dempsey

    IPC分类号： G06T1/60 ,  G06T11/40

    CPC分类号： G06T1/60

    摘要： A method and a system for the nonlinear storage of data points of a texture map matrix within a linear memory device has two embodiments. A first embodiment involves the implementation of subdividing the texture map matrix into storage matrixes, and storing each storage matrix into distinct memory locations within the linear memory device. Each storage matrix includes at least one pair of adjacent data points from two adjacent row of data points. As a result, data points of the texture map matrix are in a nonlinear storage arrangement within the linear memory device. A second embodiment involves the implementation of subdividing the rows of the texture map matrix into multi-data point groups, and placing adjacent multi-data point groups into a linear string. The linear string is subsequently written to the linear memory device. As a result, data points of the texture map matrix are in a nonlinear storage arrangement within the linear memory device.

    摘要翻译： 线性存储器件内的纹理图矩阵的数据点的非线性存储的方法和系统具有两个实施例。 第一实施例涉及将纹理贴图矩阵细分为存储矩阵的实现，以及将每个存储矩阵存储在线性存储器件内的不同存储器位置中。 每个存储矩阵包括来自两个相邻数据点行的至少一对相邻数据点。 结果，纹理图矩阵的数据点处于线性存储器件内的非线性存储装置中。 第二实施例涉及将纹理图矩阵的行细分为多数据点组，并将相邻的多数据点组放入线性串的实现。 随后将线性字符串写入线性存储器件。 结果，纹理图矩阵的数据点处于线性存储器件内的非线性存储装置中。

    ACTIVE RESISTIVE SHIMMING FOR MRI DEVICES
    8.
    发明申请
    ACTIVE RESISTIVE SHIMMING FOR MRI DEVICES 有权
    用于MRI设备的主动电阻成像

    公开(公告)号：US20130147476A1

    公开(公告)日：2013-06-13

    申请号：US13324850

    申请日：2011-12-13

    申请人： Shmaryu Shvartsman ,  James Dempsey ,  Gordon DeMeester

    发明人： Shmaryu Shvartsman ,  James Dempsey ,  Gordon DeMeester

    IPC分类号： G01R33/58 ,  G01R33/341

    CPC分类号： G01R33/3875 ,  G01R33/3642 ,  G01R33/3806 ,  G01R33/385 ,  G01R33/4808 ,  G01R33/481 ,  G01R33/4812 ,  G01R33/4814

    摘要： Active resistive shim coil assemblies may be used in magnetic resonance imaging (MRI) systems to reduce in-homogeneity of the magnetic field in the imaging volume. Disclosed embodiments may be used with continuous systems, gapped cylindrical systems, or vertically gapped systems. Disclosed embodiments may also be used with an open MRI system and can be used with an instrument placed in the gap of the MRI system. An exemplary embodiment of the active resistive shim coil assembly of the present disclosure includes active resistive shim coils each operable to be energized by separate currents through a plurality of power channels. In some embodiments, the disclosed active resistive shim coil assemblies allow for various degrees of freedom to shim out field in-homogeneity.

    摘要翻译： 有源电阻衬片线圈组件可用于磁共振成像（MRI）系统，以减小成像体积中磁场的均匀性。 公开的实施例可以与连续系统，间隙圆柱形系统或垂直间隙系统一起使用。 公开的实施例也可以与开放式MRI系统一起使用，并且可以与放置在MRI系统的间隙中的仪器一起使用。 本公开的有源电阻衬片线圈组件的示例性实施例包括有源电阻衬垫线圈，其可操作以由通过多个功率通道的分离电流激励。 在一些实施例中，所公开的主动阻抗衬片线圈组件允许不同程度的自由度来均匀地摆放场。