公开(公告)号：US08488499B2

公开(公告)日：2013-07-16

申请号：US12984249

申请日：2011-01-04

申请人： Louis M. Frigo ,  Neal Seidl ,  Matthew Grubis ,  Lee Zielinski ,  Alan Owan ,  Peter Arndt ,  Peter Jager ,  Syedsaad Ali ,  Karina Carvalho-Bond

发明人： Louis M. Frigo ,  Neal Seidl ,  Matthew Grubis ,  Lee Zielinski ,  Alan Owan ,  Peter Arndt ,  Peter Jager ,  Syedsaad Ali ,  Karina Carvalho-Bond

IPC分类号： H04B7/00

CPC分类号： H04B7/0888 ,  H04B7/0805 ,  H04B7/0874

摘要： The present application includes a system and method that provisions at least two (2) receivers in a topology that allows each receiver to acquire wireless communication signals through different diverse antenna fields. Each receiver acquires the signal, and demodulates, decodes and sends data to the data terminal component. The data terminal component resolves packet alignment issues and selects the best data. This improves system reliability and reduces the system susceptibility to data corruption or loss of data due to signal fading that might occur on a single antenna field. Provisioning a wireless system in this manner reduces the likelihood that the same fading phenomena, resulting from either multipath and/or shadowing affects, impair signal reception causing data dropout or loss of data.

摘要翻译： 本申请包括一种系统和方法，其规定拓扑中的至少两个（2）接收机，其允许每个接收机通过不同的不同天线场获取无线通信信号。 每个接收器获取信号，并对数据终端组件进行解调，解码和发送数据。 数据终端组件解决数据包对齐问题并选择最佳数据。 这样可以提高系统的可靠性，并降低系统对由于单个天线领域可能发生的信号衰落导致的数据损坏或数据丢失的敏感性。 以这种方式提供无线系统减少了由多路径和/或阴影影响导致的相同衰落现象削弱信号接收造成数据丢失或数据丢失的可能性。

公开(公告)号：US20120170494A1

公开(公告)日：2012-07-05

申请号：US12984249

申请日：2011-01-04

申请人： Louis M. Frigo ,  Neal Seidl ,  Matthew Grubis ,  Lee Zielinski ,  Alan Owan ,  Peter Arndt ,  Peter Jager ,  Syedsaad Ali ,  Karina Carvalho-Bond

发明人： Louis M. Frigo ,  Neal Seidl ,  Matthew Grubis ,  Lee Zielinski ,  Alan Owan ,  Peter Arndt ,  Peter Jager ,  Syedsaad Ali ,  Karina Carvalho-Bond

IPC分类号： H04W40/00

CPC分类号： H04B7/0888 ,  H04B7/0805 ,  H04B7/0874

摘要： The present application includes a system and method that provisions at least two (2) receivers in a topology that allows each receiver to acquire wireless communication signals through different diverse antenna fields. Each receiver acquires the signal, and demodulates, decodes and sends data to the data terminal component. The data terminal component resolves packet alignment issues and selects the best data. This improves system reliability and reduces the system susceptibility to data corruption or loss of data due to signal fading that might occur on a single antenna field. Provisioning a wireless system in this manner reduces the likelihood that the same fading phenomena, resulting from either multipath and/or shadowing affects, impair signal reception causing data dropout or loss of data.

摘要翻译： 本申请包括一种系统和方法，其规定拓扑中的至少两个（2）接收机，其允许每个接收机通过不同的不同天线场获取无线通信信号。 每个接收器获取信号，并对数据终端组件进行解调，解码和发送数据。 数据终端组件解决数据包对齐问题并选择最佳数据。 这样可以提高系统的可靠性，并降低系统对由于单个天线领域可能发生的信号衰落导致的数据损坏或数据丢失的敏感性。 以这种方式提供无线系统减少了由多路径和/或阴影影响导致的相同衰落现象削弱信号接收造成数据丢失或数据丢失的可能性。

公开(公告)号：US06564081B1

公开(公告)日：2003-05-13

申请号：US09682913

申请日：2001-10-31

申请人： Frederick J. Frigo ,  Bruce D. Collick ,  Louis M. Frigo ,  Michael R. Hartley ,  Bo Pettersson

发明人： Frederick J. Frigo ,  Bruce D. Collick ,  Louis M. Frigo ,  Michael R. Hartley ,  Bo Pettersson

IPC分类号： A61B5055

CPC分类号： G01R33/3621

摘要： The present invention provides a system and method of increasing the sampling rate for MR data acquisition. By implementing ensemble sampling techniques, the present invention provides higher data sampling rates that are useful for several MR data acquisition applications including Echo Planar Imaging, Functional Magnetic Resonance Imaging, and Sensitivity Encoding Imaging (SENSE) techniques. By multiplying an MR signal by a series of pure sinusoids having the same frequency but shifted by an incremental phase, the MR signal may be separated into a number of channels which can be sampled at lower rates by analog-to-digital converters. The output from the converters may then be reconstructed using one of a number of interpolation techniques to create a single digital channel with increased bandwidth. The single channel with increased bandwidth may then be used to acquire MR data with an improved sampling rate.

摘要翻译： 本发明提供了增加MR数据采集采样率的系统和方法。 通过实施集成采样技术，本发明提供了对于几个MR数据采集应用（包括回波平面成像，功能磁共振成像和灵敏度编码成像（SENSE）技术）有用的较高数据采样率。 通过将MR信号乘以具有相同频率但偏移增量相位的一系列纯正弦曲线，MR信号可以被分离成多个通道，其可以由模数转换器以较低速率进行采样。 然后可以使用多个内插技术中的一个来重建来自转换器的输出，以创建具有增加的带宽的单个数字信道。 带宽增加的单通道随后可用于以改进的采样率采集MR数据。

公开(公告)号：US07738943B2

公开(公告)日：2010-06-15

申请号：US10904629

申请日：2004-11-19

申请人： Liewei Sha ,  Sanjay G. Mathias ,  Louis M. Frigo

发明人： Liewei Sha ,  Sanjay G. Mathias ,  Louis M. Frigo

IPC分类号： A61B5/05

CPC分类号： A61B5/7285 ,  A61B5/055

摘要： A system and method for MR imaging is disclosed that includes an MRI system having a plurality of gradient coils positioned about a bore of a magnet to impress a polarizing magnetic field and an RF transceiver system and an RF switch controlled by a pulse module to transmit RF signals to an RF coil assembly to acquire MR images. A computer is included that is programed to generate a motion waveform from a physiological signal acquired from a subject to be imaged and compare a shape of the motion waveform to a shape of a reference motion waveform to identify points in the motion waveform corresponding to a periodic complex. The computer is also programed to trigger MR data acquisition from the subject upon identification of the periodic complex.

摘要翻译： 公开了一种用于MR成像的系统和方法，其包括具有围绕磁体的孔定位的多个梯度线圈的MRI系统，以施加偏振磁场和RF收发器系统以及由脉冲模块控制的RF开关以传输RF 信号到RF线圈组件以获取MR图像。 包括计算机，其被编程为从要成像的对象获取的生理信号生成运动波形，并将运动波形的形状与参考运动波形的形状进行比较，以识别对应于周期性的运动波形中的点 复杂。 计算机也被编程为在识别周期复合体时从主体触发MR数据采集。