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1.发明授权
公开(公告)号：US5084675A
公开(公告)日：1992-01-28
申请号：US565951
申请日：1990-08-10
CPC分类号： G01R33/56 , G01R33/543 , G01R33/5608 , G01R33/5616
摘要： In the echo planar imaging (EPI) method of operating a nuclear magnetic resonance (magnetic resonance imaging) tomography apparatus, the necessary, rapid switching of gradients having a high amplitude usually cannot be achieved with square-wave gradients, and therefore a read-out gradient having a sinusoidal shape is generally used. Given a chronologically equidistant sampling of the nuclear magnetic resonance signal in the time domain, however, a sampling in the k-space with different rates is present. The bandwidth of the signal is proportional to the sampling rate in the k-space. In the method disclosed herein, bandwidth of a bandpass filter or a low-pass filter in the signal processing circuit for the nuclear magnetic resonance signal is adapted to the time dependent bandwith of the nuclear magnetic resonance signal, i.e., to the sampling rate in the k-space. The bandwidth is increased with increasing sampling rate. The signal-to-noise ratio is noticeably improved.
摘要翻译： 在操作核磁共振（磁共振成像）断层摄影装置的回波平面成像（EPI）方法中，通常使用方波梯度不能实现具有高振幅的梯度的必要的快速切换，因此读出 通常使用具有正弦形状的梯度。 然而，鉴于时域上的核磁共振信号的时间上等距离的采样，存在具有不同速率的k空间中的采样。 信号的带宽与k空间中的采样率成比例。 在本文公开的方法中，用于核磁共振信号的信号处理电路中的带通滤波器或低通滤波器的带宽适应于核磁共振信号的时间依赖带宽，即适应于 k空间。 带宽随采样率的增加而增加。 信噪比明显提高。
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2.发明授权Method for sensing nuclear magnetic resonance signals given arbitrary gradient shapes 失效用于检测给定任意梯度形状的核磁共振信号的方法
公开(公告)号：US5087880A
公开(公告)日：1992-02-11
申请号：US482963
申请日：1990-02-22
IPC分类号： A61B5/055 , G01R33/48 , G01R33/565
CPC分类号： G01R33/56572 , G01R33/56545
摘要： A method for operating a nuclear resonance imaging device given gradients of arbitrary shapes includes the steps of equidistantly sampling the nuclear magnetic resonance signals in the time domain with a sampling rate that satisfies the sampling theorem, the sampling taking place even given gradients having a non-rectangular pulse shape. Since non-equidistant sampling in the K-space would normally lead to image artifacts, the method includes the further step, to avoid such artifacts, of calculating measured values from the acquired samples by interpolation, these measured values being equidistant in the K-space, and being entered into a measurement matrix. The equidistant sampling in the K-space, which is complicated, is thus superfluous given gradients having an arbitrary pulse shape.
摘要翻译： 给定给定任意形状梯度的核共振成像装置的方法包括以满足采样定理的采样速率等时采样时域中的核磁共振信号的步骤，即使给定梯度具有非线性的采样， 矩形脉冲形状。 由于K空间中的非等距采样通常会导致图像伪影，所以该方法还包括进一步的步骤，为了避免这种伪像，通过插值从所采集的样本中计算测量值，这些测量值在K空间中是等距的 ，并输入测量矩阵。 因此，复杂的K空间中的等距采样因此是具有任意脉冲形状的给定梯度的多余采样。
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公开(公告)号：US5068609A
公开(公告)日：1991-11-26
申请号：US524344
申请日：1990-05-16
IPC分类号： G01R33/565
CPC分类号： G01R33/56554 , G01R33/56545
摘要： A method for generating an image using nuclear magnetic resonance signals, which substantially eliminates the presence of so-called "N/2 ghosts," includes the steps of dividing a measurement matrix into a first sub-matrix containing the even-numbered rows of the measurement matrix and into a second sub-matrix having the odd-numbered rows of the measurement matrix, setting the entries in the remaining rows of the sub-matrices to zero, subjecting both sub-matrices to a Fourier transformation at least in the column direction, thereby generating respective intermediate image matrices, multiplying one of the intermediate image matrices by a factor which is calculated from the edge rows of the intermediate image matrices, and adding the intermediate image matrices after the multiplication.
摘要翻译： 使用核磁共振信号产生图像的方法基本上消除了所谓的“N / 2重影”的存在，包括以下步骤：将测量矩阵划分成包含偶数行的第一子矩阵 测量矩阵和具有测量矩阵的奇数行的第二子矩阵，将子矩阵的剩余行中的条目设置为零，使两个子矩阵至少在列方向上进行傅里叶变换 从而生成各自的中间图像矩阵，将中间图像矩阵中的一个乘以从中间图像矩阵的边缘行计算的因子，并且在相乘之后相加中间图像矩阵。
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4.发明授权Asynchronous transport optimizing observer-pattern-like system supporting several modes for an interface definition language-less communication subsystem 失效异步传输优化观察者模式式系统支持几种模式，用于接口定义无语言通信子系统公开(公告)号：US06275871B1
公开(公告)日：2001-08-14
申请号：US08676859
申请日：1996-07-03
IPC分类号： G06F900
摘要： An object oriented communication system supporting external data representation without an interface definition language, propagating events in both push and pull communication modes, fully distributing events, client/server-RPC-like mode and server processing pattern management. An applications program interface for the communication system having two macro routines for building classes which make the classes transferrable by the communication system.
摘要翻译： 面向对象的通信系统支持无需接口定义语言的外部数据表示，在推挽通信模式下传播事件，完全分发事件，客户端/服务器类似RPC的模式和服务器处理模式管理。 一种用于通信系统的应用程序接口，具有用于建立类别的两个宏程序，这些类使得该类可由通信系统传送。
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公开(公告)号：US5049749A
公开(公告)日：1991-09-17
申请号：US493105
申请日：1990-03-08
CPC分类号： H05G1/26 , G01T1/2014 , G03B42/02
摘要： The present invention is directed to an improvement for an x-ray diagnostics installation having a storage luminescent screen for the latent storage of x-ray images. The installation includes an x-ray generator, an x-ray exposure device which is connected to the generator for projecting x-ray beams to create an x-ray image on the screen, a read-out device which projects light as a scanning beam on the screen to excite luminesce pixel-by-pixel, a detector arrangement for acquiring the light emitted by the storage screen to create a signal used by the image reproduction system to display the image. The x-ray generator is connected to the read-out arrangement so that parameters of the read-out arrangement are set on the basis of adjustments of the x-ray generator and/or the measurements carried out during the exposure.
摘要翻译： 本发明涉及一种具有用于x射线图像的潜藏的存储发光屏的x射线诊断装置的改进。 该装置包括x射线发生器，x射线曝光装置，其连接到发生器用于投射X射线束以在屏幕上产生X射线图像;将光投射为扫描光束的读出装置 在屏幕上以像素为单位激发发光，用于获取由存储屏幕发射的光以产生由图像再现系统用于显示图像的信号的检测器装置。 x射线发生器连接到读出装置，以便基于x射线发生器的调整和/或在曝光期间进行的测量来设置读出装置的参数。
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公开(公告)号：US20080016494A1
公开(公告)日：2008-01-17
申请号：US11861776
申请日：2007-09-26
IPC分类号： G06F9/44
CPC分类号： G06F9/44521 , G06F8/24 , G06F8/36 , G06F9/44505 , G06F9/4492
摘要： An object oriented computing system, comprising objects with semanticless, dynamically linkable inputs and outputs; and an event communication framework providing automated, pattern-based, fully distributable events
摘要翻译： 面向对象的计算系统，包括具有无语言，可动态链接的输入和输出的对象; 以及提供自动化，基于模式的，完全可分发的事件的事件通信框架
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7.发明授权Measuring arrangement for examining a subject with visible, NIR or IR light 失效用可见光，近红外或红外光检查受试者的测量装置
公开(公告)号：US5309907A
公开(公告)日：1994-05-10
申请号：US935878
申请日：1992-08-26
申请人： Ming Fang , Hans-Erich Reinfelder
发明人： Ming Fang , Hans-Erich Reinfelder
CPC分类号： A61B5/1455 , A61B5/0073
摘要： An apparatus for examining tissue in vivo by means of the optical properties of the tissue generates a measuring chirp signal which is introduced into a tissue-containing subject as a coherent optical chirp signal. The parts of the measuring chirp signal emerging from the subject are superimposed with a reference chirp signal to form a superposition signal that is supplied to a filter that only allows those parts of the superposition signal to pass that represent those parts of the measuring chirp signal emerging from the subject which have traversed a defined, optical path length within the subject.
摘要翻译： 用于通过组织的光学性质检查体内组织的装置产生测量线性调频信号，其被引入含有组织的对象中作为相干光啁啾信号。 从对象出现的测量啁啾信号的部分与参考线性调频脉冲信号叠加以形成叠加信号，该叠加信号被提供给只允许叠加信号的那些部分通过的滤波器，这些部分表示测量啁啾信号出现的部分 来自已经穿过被摄体内限定的光程长度的被摄体。
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公开(公告)号：US5229608A
公开(公告)日：1993-07-20
申请号：US820255
申请日：1992-01-14
IPC分类号： G01T1/00 , G01T1/29 , G03B42/02 , G06T1/00 , G21K4/00 , H04N1/04 , H04N1/10 , H04N1/113 , H04N1/40
CPC分类号： H04N1/40 , G01T1/2014 , H04N1/1008 , H04N1/1135
摘要： A read-out system for a luminescent storage screen of the type used to latently store an x-ray in an x-ray diagnostics apparatus includes a radiation source which generates a scan beam, which is deflected over the storage screen to cause the storage screen to luminesce pixel-by-pixel, with the emitted light being supplied to an image reproductions circuit for generating a visible image. A portion of the scan beam is coupled-out and is conducted to a correction detector unit, which supplies a correction signal containing information regarding the intensity, and further information about the location, of the deflected scan beam. The output signals of the detector and the correction detector are superimposed so that any errors caused by fluctuations in the brightness of the scan beam, or non-uniformities in the structure of the detector, will be corrected.
摘要翻译： 用于在x射线诊断装置中将x射线容易地存储的用于发光存储屏幕的读出系统包括产生扫描光束的辐射源，该扫描光束在存储屏幕上偏转以使存储屏幕 以逐个像素发光，发射的光被提供给用于产生可见图像的图像再生电路。 扫描光束的一部分被耦合出来并被传导到校正检测器单元，校正检测器单元提供包含关于强度的信息的校正信号以及关于偏转的扫描光束的位置的进一步信息。 检测器和校正检测器的输出信号被叠加，使得由扫描光束的亮度的波动引起的任何误差或检测器的结构的不均匀性被校正。
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公开(公告)号：US5218205A
公开(公告)日：1993-06-08
申请号：US879242
申请日：1992-05-06
CPC分类号： G01T1/2014 , H04N1/0281
摘要： A read-out system for a luminescent storage screen of the type used in an x-ray diagnostics installation has a scan beam generator which generates a scan beam of a first wavelength, a beam deflector for deflecting the scan beam to planarly scan a luminescent storage screen pixel-by-pixel to retrieve the stored image, the scan beam causing the storage screen to luminesce and generate light of a second wavelength which is detected by a detector system. The detector system includes a light conductor which conducts the light onto a light detector. The detector system includes a filter for light of the first wavelength, which is arranged in the immediate proximity of the point of incidence of the scan beam on the luminescent storage screen. The filter is in the form of a slot-shaped opening for the scan beam.
摘要翻译： 用于x射线诊断装置中使用的类型的发光存储屏幕的读出系统具有产生第一波长的扫描光束的扫描光束发生器，用于偏转扫描光束以平面扫描发光存储器的光束偏转器 屏幕逐像素地检索存储的图像，使得存储屏幕发射并产生由检测器系统检测到的第二波长的光的扫描光束。 检测器系统包括将光导向光检测器的光导体。 检测器系统包括用于第一波长的光的滤光器，其被布置在紧邻扫描光束在发光存储屏上的入射点附近。 过滤器是用于扫描光束的槽形开口的形式。
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10.发明授权Read-out system for a luminescent storage screen in a x-ray diagnostics installation 失效X射线诊断安装中的发光存储屏幕的读出系统
公开(公告)号：US4950895A
公开(公告)日：1990-08-21
申请号：US397899
申请日：1989-08-24
CPC分类号： H04N1/02855 , H04N1/0281 , H04N1/02865 , H04N1/193
摘要： A read-out system for a luminescent storage screen, in which a latent x-ray image is stored, includes a read-out radiation source formed by a bank of light emitting diodes which are respectively individually coupled to picture elements to be scanned, such as those in a line of the storage screen. A control circuit is connected to the light emitting diodes which drives the diodes in coded fashion on the basis of a transformation, such as a Hadamard-Walsh transformation, so that a number of light emitting diodes are simultaneously energized. The total stimulated light emitted by a corresponding number of picture elements is detected, and is used to form coefficients for the transformation. A calculating stage is connected to the light detector, which calculates brightness values for each picture element from these coefficients by reverse transformation. The brightness values are displayed on an image reproduction system.
摘要翻译： 用于存储潜在x射线图像的发光存储屏幕的读出系统包括由一组发光二极管形成的读出的辐射源，所述发光二极管分别单独地耦合到待扫描的像素， 作为存储屏幕的一行。 控制电路连接到基于诸如Hadamard-Walsh变换的变换的编码方式驱动二极管的发光二极管，使得多个发光二极管同时通电。 检测由相应数量的图像元素发射的总刺激光，并用于形成用于变换的系数。 计算级连接到光检测器，该光检测器通过反向变换从这些系数中计算每个像素的亮度值。 亮度值显示在图像再现系统上。
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