利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

121 条记录 (耗时 0.036 秒)

    System and method for reducing heat dissipation during burn-in
    11.
    发明申请
    System and method for reducing heat dissipation during burn-in 有权
    老化过程中减少散热的系统和方法

    公开(公告)号：US20080024152A1

    公开(公告)日：2008-01-31

    申请号：US11827290

    申请日：2007-07-10

    申请人： Eric Sheng ,  David Hoffman ,  John Niven

    发明人： Eric Sheng ,  David Hoffman ,  John Niven

    IPC分类号： G01R31/26

    CPC分类号： G01R31/2879 ,  G01R31/2817 ,  G01R31/2875 ,  G01R31/31721

    摘要： Systems and methods for reducing temperature dissipation during burn-in testing are described. A plurality of devices under test are each subject to a body bias voltage. The body bias voltage reduces leakage current associated with the devices under test. Accordingly, heat dissipation is reduced during burn-in.

    摘要翻译： 描述了在老化测试期间降低温度耗散的系统和方法。 被测试的多个器件各自经受体偏置电压。 身体偏置电压降低与被测器件相关的漏电流。 因此，在老化期间散热降低。

    2D collimator and detector system employing a 2D collimator
    12.
    发明申请
    2D collimator and detector system employing a 2D collimator 有权
    2D准直仪和采用2D准直仪的检测器系统

    公开(公告)号：US20070152159A1

    公开(公告)日：2007-07-05

    申请号：US11325023

    申请日：2006-01-04

    申请人： Jonathan Short ,  Martin Lee ,  J. Tkaczyk ,  David Hoffman ,  Brian Yanoff

    发明人： Jonathan Short ,  Martin Lee ,  J. Tkaczyk ,  David Hoffman ,  Brian Yanoff

    IPC分类号： G01T1/20 ,  G21K1/02

    CPC分类号： G01T1/1642 ,  G01T1/1648 ,  G21K1/025

    摘要： A two dimensional (2D) collimator assembly and a detector system employing a 2D collimator assembly. More specifically, a collimator assembly is provided, having elements extending in the x and z-planes of a detector system. The 2D collimator assembly includes a number of blades arranged in parallel. Each of the blades includes fins extending from one or both sides of the body of the blade. The fins are coupled to each adjacent array to form the 2D collimator assembly.

    摘要翻译： 二维（2D）准直器组件和采用2D准直器组件的检测器系统。 更具体地，提供了准直器组件，其具有在检测器系统的x和z平面中延伸的元件。 2D准直器组件包括并联布置的多个叶片。 每个叶片包括从叶片的主体的一侧或两侧延伸的翅片。 翅片联接到每个相邻的阵列以形成2D准直器组件。

    DIRECT CONVERSION ENERGY DISCRIMINATING CT DETECTOR
    13.
    发明申请
    DIRECT CONVERSION ENERGY DISCRIMINATING CT DETECTOR 有权
    直接转换能量分辨CT检测器

    公开(公告)号：US20060104411A1

    公开(公告)日：2006-05-18

    申请号：US11275294

    申请日：2005-12-22

    申请人： David Hoffman

    发明人： David Hoffman

    IPC分类号： H05G1/60 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12

    CPC分类号： G01T1/2985 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/4411 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612

    摘要： A CT detector capable of energy discrimination and direct conversion is disclosed. The detector includes multiple layers of semiconductor material with the layers having varying thicknesses. The detector is constructed to be segmented in the x-ray penetration direction so as to optimize count rate performance as well as avoid saturation.

    摘要翻译： 公开了能够鉴别和直接转换的CT检测器。 检测器包括多层半导体材料，其中层具有变化的厚度。 检测器被构造成在x射线穿透方向上分段，以便优化计数率性能以及避免饱和。

    CT DETECTOR HAVING A SEGMENTED OPTICAL COUPLER AND METHOD OF MANUFACTURING SAME
    15.
    发明申请
    CT DETECTOR HAVING A SEGMENTED OPTICAL COUPLER AND METHOD OF MANUFACTURING SAME 有权
    具有分离光学耦合器的CT检测器及其制造方法

    公开(公告)号：US20060043305A1

    公开(公告)日：2006-03-02

    申请号：US11163973

    申请日：2005-11-04

    申请人： David Hoffman ,  Michael Hoge

    发明人： David Hoffman ,  Michael Hoge

    IPC分类号： G01T1/20

    CPC分类号： G01T1/2018 ,  A61B6/032 ,  A61B6/4291 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612 ,  G01T1/2002 ,  G01T1/202 ,  G01T1/2985

    摘要： The present invention is a directed to a CT detector for a CT imaging system that incorporates a segmented optical coupler between a photodiode array and a scintillator array. The segmented optical coupler also operates as a light collimator which improves the light collection efficiency of the photodiode array. The segmented optical coupler is defined by a series of reflector elements that collectively form a plurality of open cells. The open cells form light transmission cavities and facilitate the collimation of light from a scintillator to a photodiode. The cavities may be filled with optical epoxy for sealing to the photodiode array.

    摘要翻译： 本发明涉及一种用于CT成像系统的CT检测器，其中包括光电二极管阵列和闪烁体阵列之间的分段光耦合器。 分段光耦合器还用作光准直器，其提高了光电二极管阵列的光收集效率。 分段光耦合器由共同形成多个开放单元的一系列反射器元件限定。 开放的电池形成光透射腔，并促进从闪烁体到光电二极管的准直。 空腔可以填充有光学环氧树脂以密封到光电二极管阵列。

    COLLIMATOR ASSEMBLY HAVING MULTI-PIECE COMPONENTS
    18.
    发明申请
    COLLIMATOR ASSEMBLY HAVING MULTI-PIECE COMPONENTS 失效
    具有多个部件的集装箱组件

    公开(公告)号：US20050169430A1

    公开(公告)日：2005-08-04

    申请号：US10907886

    申请日：2005-04-19

    申请人： David Hoffman

    发明人： David Hoffman

    IPC分类号： A61B6/03 ,  A61B6/06 ,  G01N23/04 ,  G01T1/164 ,  G21K1/02 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12 ,  H05G1/60

    CPC分类号： G01T1/1648 ,  A61B6/032 ,  A61B6/06 ,  A61B6/4233 ,  G01N23/046 ,  G01N2223/419 ,  G01N2223/612 ,  G21K1/025

    摘要： The present invention is directed to a collimator assembly defined by a series of multi-piece collimator elements or plates that extend along at least one dimension of a scintillator pack. Each collimator element has a collimating component and a shielding component that are structurally independent from one another. The collimating components may be connected to the shielding components or separated by a small air gap. The shielding components are wider than the collimating components but the collimating components have a greater height. With this construction, the collimator assembly optimizes collimation and shielding with lower material requirements and reduced overall size.

    摘要翻译： 本发明涉及由沿着闪烁体组件的至少一个维度延伸的一系列多片准直器元件或板限定的准直器组件。 每个准直器元件具有在结构上彼此独立的准直部件和屏蔽部件。 准直部件可以连接到屏蔽部件或由小的气隙隔开。 屏蔽部件比准直部件宽，但是准直部件具有更大的高度。 通过这种结构，准直器组件可以以较低的材料要求和总体尺寸来优化准直和屏蔽。

    FIELD AND FACTORY TESTABLE IMAGING DETECTOR
    19.
    发明申请
    FIELD AND FACTORY TESTABLE IMAGING DETECTOR 失效
    现场和工厂测试成像检测器

    公开(公告)号：US20050135552A1

    公开(公告)日：2005-06-23

    申请号：US10707604

    申请日：2003-12-23

    申请人： David Hoffman

    发明人： David Hoffman

    IPC分类号： A61B6/00 ,  A61B6/03 ,  G21K1/12 ,  G01N23/00 ,  H05G1/60

    CPC分类号： A61B6/032 ,  A61B6/58 ,  A61B6/581 ,  A61B6/583

    摘要： An imaging assembly is provided including an x-ray source and a controller in communication with the x-ray source. A detector assembly is in communication with the controller, and includes a photodetector array in communication with the controller. A scintillator assembly is positioned between the photodetector array and the x-ray source. A collimator assembly is positioned in between the scintillator assembly and the x-ray source. An electroluminescent panel is positioned between the collimator assembly and the scintillator assembly. The electroluminescent panel is in communication with the controller and has an active condition where the electroluminescent panel generates radiation eliciting a response from the detector array.

    摘要翻译： 提供了一种成像组件，包括x射线源和与x射线源连通的控制器。 检测器组件与控制器通信，并且包括与控制器通信的光电检测器阵列。 闪烁体组件位于光电检测器阵列和x射线源之间。 准直器组件位于闪烁体组件和x射线源之间。 电致发光面板位于准直器组件和闪烁体组件之间。 电致发光面板与控制器连通并且具有激活状态，其中电致发光面板产生引起来自检测器阵列的响应的辐射。

    System and method of determining a center of mass of an imaging subject for x-ray flux management control
    20.
    发明申请
    System and method of determining a center of mass of an imaging subject for x-ray flux management control 失效
    用于确定用于x射线通量管理控制的成像对象的质心的系统和方法

    公开(公告)号：US20050089138A1

    公开(公告)日：2005-04-28

    申请号：US10765583

    申请日：2004-01-27

    申请人： Thomas Toth ,  David Hoffman

    发明人： Thomas Toth ,  David Hoffman

    IPC分类号： A61B6/03 ,  G21K1/12 ,  A61B6/00 ,  G01N23/00 ,  H05G1/60

    CPC分类号： A61B6/032 ,  A61B6/4035 ,  A61B6/4241 ,  A61B6/4488 ,  A61B6/469 ,  A61B6/488 ,  A61B6/544 ,  A61B6/583

    摘要： A system and method of diagnostic imaging is provided that includes positioning a subject in a scanning bay, comparing a center of mass of the subject to a reference point, and repositioning the subject in the scanning bay to reduce a difference in position between the center of mass of the subject and the reference point. The present invention automatically selects a proper attenuation filter configuration, corrects patient centering, and corrects noise prediction errors, thereby increasing dose efficiency and tube output.

    摘要翻译： 提供了诊断成像的系统和方法，其包括将被摄体定位在扫描间隔中，将被摄体的质心与参考点进行比较，以及重新定位扫描间隔中的被摄体以减少位于第 受试者的质量和参考点。 本发明自动选择适当的衰减滤波器配置，校正患者居中，并且校正噪声预测误差，从而提高剂量效率和管输出。