公开(公告)号：US5828718A

公开(公告)日：1998-10-27

申请号：US829062

申请日：1997-03-31

申请人： Christopher C. Ruth ,  John M. Dobbs ,  Carl R. Crawford

发明人： Christopher C. Ruth ,  John M. Dobbs ,  Carl R. Crawford

IPC分类号： A61B6/03

CPC分类号： A61B6/032 ,  A61B6/027 ,  Y10S378/901

摘要： A system for and method of generating a reconstructed tomographic image is described using an asymmetric detector array during a helical scan. An improved helical weighting system applies a helical halfscan technique to data collected by a symmetric portion of an asymmetric detector system and applies a helical fullscan technique to data collected by an asymmetric portion of the asymmetric detector system. The preferred system comprises an equi-angle interpolator, a streak artifact suppression filter, and an isocenter interpolator that preserve the distinction between even and odd data points in parallel beam projection data.

摘要翻译： 在螺旋扫描期间使用不对称检测器阵列描述了生成重建断层图像的系统和方法。 改进的螺旋加权系统将螺旋半扫描技术应用于由不对称检测器系统的对称部分收集的数据，并对不对称检测器系统的不对称部分收集的数据应用螺旋扫描技术。 优选的系统包括等角内插器，条纹伪影抑制滤波器和等距中心内插器，其保持平行光束投影数据中偶数和奇数数据点之间的区别。

公开(公告)号：US07638732B1

公开(公告)日：2009-12-29

申请号：US10747551

申请日：2003-12-29

申请人： John M. Dobbs

发明人： John M. Dobbs

IPC分类号： B23K26/00

CPC分类号： G21K1/025

摘要： An apparatus including a base, a linkage extending along a second axis and pivotally connected to the base for pivotal movement about a first axis perpendicular to the second axis, a leg having a first end pivotally connected to the linkage for pivotal movement about the second axis, and a frame secured to a second end of the leg. A stand extends from the base, and a first slide is secured to a distal end of the stand for pivotal movement with respect to the distal end of the stand. A first guide is supported by the first slide for movement with respect to the first slide, and a second slide is secured to an end of the first guide. A second guide is pivotally connected to the frame and supported by the second slide for movement with respect to the second slide. The frame can be used to support a plating mask and is movable along a surface of an imaginary sphere having a center located at the intersection of the first and the second axes.

摘要翻译： 一种装置，包括基座，沿着第二轴线延伸并且枢转地连接到基座的联动装置，用于围绕垂直于第二轴线的第一轴线枢转运动;腿部，其第一端枢转地连接到联动装置，用于围绕第二轴线枢转运动 ，以及固定到腿部的第二端的框架。 支架从底座延伸，并且第一滑块固定到支架的远端，用于相对于支架的远端枢转运动。 第一引导件由相对于第一滑动件移动的第一滑动件支撑，并且第二滑块固定到第一引导件的端部。 第二引导件枢转地连接到框架并由第二滑块支撑以相对于第二滑块运动。 框架可以用于支撑电镀掩模，并且可沿着具有位于第一和第二轴线的交叉点处的中心的假想球体的表面移动。

公开(公告)号：US5613165A

公开(公告)日：1997-03-18

申请号：US600876

申请日：1996-02-13

申请人： Gregg T. Dobbs ,  Loura L. Dobbs ,  John M. Dobbs

发明人： Gregg T. Dobbs ,  Loura L. Dobbs ,  John M. Dobbs

IPC分类号： G03B15/08 ,  G03B17/24 ,  G03B1/00 ,  G03B27/52

CPC分类号： G03B15/08 ,  G03B17/245 ,  G03B2217/241 ,  G03B2217/248 ,  G03B2219/045

摘要： A method for exposing film with a latent image, wherein the latent image is in precise registration with a subsequent image placed onto the filmstrip. Pre-exposed artwork is positioned to enhance a finished photograph creating a pleasing and interesting photograph without special efforts by a user. An exposure frame opening of the camera has a shielded portion in registration with the pre-exposed filmstrip artwork portion of the filmstrip. To place the artwork in proper registration, an imaging filmstrip is formed having an image of the artwork. The artwork image is located using an alignment filmstrip formed using the camera itself. Subsequent exposure provides each frame of the pre-exposed filmstrip with images in pleasing juxtaposition.

摘要翻译： 一种用潜影曝光胶片的方法，其中潜像与放置在胶片上的后续图像精确配准。 预曝光的艺术品定位，以增强完整的照片，创造一个令人愉快和有趣的照片，没有用户的特别努力。 相机的曝光框架开口具有与胶片的预曝光胶片贴图部分对准的屏蔽部分。 为了正确地注册艺术品，形成具有艺术品图像的成像胶片。 艺术品图像使用使用相机本身形成的对准胶片来定位。 随后的曝光为预曝光胶片的每一帧提供了令人满意的并置图像。

公开(公告)号：US08350655B2

公开(公告)日：2013-01-08

申请号：US11699529

申请日：2007-01-29

申请人： John M. Dobbs

发明人： John M. Dobbs

IPC分类号： H01F21/06 ,  H01F27/02 ,  H01F27/36 ,  H01F21/04

CPC分类号： H01F38/18 ,  A61B6/56 ,  H01F27/367

摘要： Axisymmetric solid of revolution derivable from section at FIG. 5 is generally toroidal with electric current(s) in windings 110, 160 preferably flowing circumferentially along major circle(s) during power coupling device operation. Current(s) in windings 110, 160; current(s) in half-shields 120, 170; and the volume of space swept out by shield airgap(s) 101 emerge from plane of paper perpendicularly at FIG. 5 but as these emerge therefrom they curve to follow toroidal major circle(s). Cores 115, 165 preferably shunt and align magnetic flux such that magnetic field lines escape therefrom primarily only in region(s) of core airgap(s) and such that magnetic flux loops lie in planes of toroidal minor circle(s). Half-shield(s) 120, 170 preferably have electrically conductive material(s) distributed therein as is sufficient to substantially cancel magnetic flux lines impinging thereon before effects of such impinging magnetic flux lines would reach shield airgap(s) 101 and/or outer surface(s) of half-shields 120, 170.

摘要翻译： 从图中的截面可以得到的轴对称实体。 通常在绕组110,160中的电流是环形的，优选地在功率耦合器件操作期间沿着主圆周圆周地流动。 绕组110,160中的电流; 半屏120,170中的电流; 并且由屏蔽气隙101扫出的空间体积垂直于图1中的纸平面出射。 5但是随着这些从它们的出现，它们曲线跟随环形主圆。 核心115,165优选地分流和对准磁通量，使得磁场线主要仅在核心气隙的区域中逸出，并且使得磁通量环位于环形次圆的平面中。 半屏蔽120,170优选地具有分布在其中的导电材料，足以在这种入射磁通线的作用到达屏蔽气隙101和/或外部电极之前基本上抵消撞击在其上的磁通线。 半屏120,170的表面。

公开(公告)号：US08759780B2

公开(公告)日：2014-06-24

申请号：US13119791

申请日：2009-03-13

申请人： John M. Dobbs

发明人： John M. Dobbs

IPC分类号： G01N23/18 ,  G01N23/00 ,  G01N23/02

CPC分类号： G01N23/00 ,  F16L2101/30 ,  G01B15/02 ,  G01M11/00 ,  G01N17/00 ,  G01N23/02 ,  G01N23/18 ,  G01N2223/628 ,  G01N2291/0234

摘要： The present application provides techniques and/or systems for inspecting a pipe, or rather measuring one or more characteristics of a pipe, using radiation. A carriage, mounted to the pipe, may provide a mechanism for propelling a radiation source and a detector along the pipe. The detector is configured such that it can receive radiation that has traversed both a wall of the pipe and an obstacle, such as a pipe support. In this way, portions of a pipe that are traditionally difficult to inspect may be inspected easily with minimal human intervention.

摘要翻译： 本申请提供了使用辐射来检查管道的技术和/或系统，或者甚至测量管道的一个或多个特性。 安装到管道上的托架可以提供用于沿管道推进辐射源和检测器的机构。 检测器被构造成使得其可以接收已经穿过管道的壁和诸如管道支撑件的障碍物的辐射。 以这种方式，传统上难以检查的管道的部分可以以最少的人为干预来容易地检查。

公开(公告)号：US07072446B2

公开(公告)日：2006-07-04

申请号：US10747573

申请日：2003-12-29

申请人： John M. Dobbs ,  Stephen M. Tobin

发明人： John M. Dobbs ,  Stephen M. Tobin

IPC分类号： G21K1/00

CPC分类号： G21K1/10

摘要： A method for manufacturing an anti-scatter grid including arranging a plurality of elongated metal ribbons of radio-opaque material so that each ribbon is substantially straight and lies in a plane that passes through a focal point of the grid, and placing the elongated ribbons under tension. A first sheet of radioluscent material is secured to top edges of the ribbons, and a second sheet of radioluscent material is secured to bottom edges of the ribbons. The ribbons are arranged such that the first and second radioluscent sheets are substantially parallel. Then the tension is removed from the ribbons.

摘要翻译： 一种用于制造防散射栅格的方法，包括布置多个不透射线材料的细长金属带，使得每个带基本上是直的并且位于通过栅格的焦点的平面中，并将细长带放置在 张力。 将第一片放射性物质固定到带的顶部边缘，并且将第二片辐射源材料固定到带的底部边缘。 丝带被布置成使得第一和第二放射性片材基本上平行。 然后从丝带中取出张力。

公开(公告)号：US5765062A

公开(公告)日：1998-06-09

申请号：US757474

申请日：1996-11-27

申请人： Gregg T. Dobbs ,  Loura L. Dobbs ,  John M. Dobbs

发明人： Gregg T. Dobbs ,  Loura L. Dobbs ,  John M. Dobbs

IPC分类号： G03B15/08 ,  G03B17/24 ,  G03B41/00

CPC分类号： G03B15/08 ,  G03B17/245 ,  G03B2217/241 ,  G03B2217/248 ,  G03B2219/045

摘要： A fun camera provides precise registration of a latent image within a film frame with subsequent images placed on the filmstrip through exposure of the filmstrip within the camera. Rolls of film are pre-exposed with the latent image of artwork positioned within film frames. Masks are provided for insertion of the camera frame opening for shielding that portion of the film frame which contains the artwork latent image. The art work is placed onto the pre-exposed filmstrip using an imaging filmstrip formed in a continuous loop. The continuous loop having multiple artwork images thereon is rotated while a portion of the filmstrip is in contact with a portion of the bulk film for transferring the artwork image from the filmstrip to the bulk film. The bulk film is advanced while a light source exposes the film when in contact with the filmstrip. The pre-exposed bulk roll of film is punched at preselected sprocket holes corresponding to the filmstrip length for providing a reference sprocket hole within each length of film cut from the bulk roll for loading within canisters for use within the fun camera for double exposure of the film and placement of a second latent image in juxtaposition with the artwork. Improvements to the fun camera film advancing mechanism permits precise movement of the film and indexing of the film using a sprocket hole count for providing improved registration of the multiple images juxtaposed within the film frames.

摘要翻译： 一个有趣的相机提供了一个潜像在电影框架内的精确配准，随后通过照相机中的胶卷曝光放置在胶片上的图像。 胶片卷被预先曝光，图像的潜像位于胶片框架内。 提供掩模用于插入相机框架开口，用于屏蔽包含艺术品潜像的胶片框架的那部分。 使用形成在连续环路中的成像胶片将艺术作品放置在预曝光胶卷上。 在其上具有多个图案图像的连续回路被旋转，同时一部分胶片与散装胶片的一部分接触，用于将图像图像从胶卷传送到散装胶片。 当胶片与胶片接触时，光源曝光胶片时，散装胶片前进。 预先曝光的胶片卷在针对胶片长度的预先选择的链轮孔处冲压，以在从胶卷切割的胶片的每个长度内提供参考链轮孔，以便加载到罐内，以便在有趣的相机内使用以双重曝光 第二个潜像的影片和放映与艺术作品并列。 对有趣的相机胶片前进机构的改进允许胶片的精确移动和使用链轮孔数目对胶片进行索引，以提供并排在胶片框架内的多个图像的改进配准。

公开(公告)号：US4677554A

公开(公告)日：1987-06-30

申请号：US814007

申请日：1985-12-20

申请人： John M. Dobbs ,  Bernard M. Gordon

发明人： John M. Dobbs ,  Bernard M. Gordon

IPC分类号： A61B6/03 ,  G06F15/42 ,  A61B6/02 ,  G01T1/17 ,  G05B21/02

CPC分类号： A61B6/4275 ,  A61B6/032

摘要： A tomography data acquisition system in which the signal processing of signals from a radiation detector is a function of the angular position of the detector relative to a center path from the radiation source through the center of a tomography subject, and which results in system hardware savings. The information content of detector signals derived from radiation paths progressively outward from the center path is progressively less than the information content of detector signals derived from the central radiation path. The sampling rate of the outward detector signals can be lower without loss of information. The resolution of the outward detector signals can also be lower, and as desired, either the sampling rate or the resolution or both can be varied in accordance with the position of the detector in relation to the center path.

摘要翻译： 一种断层摄影数据采集系统，其中来自辐射检测器的信号的信号处理是检测器相对于从辐射源通过层析成像对象的中心的中心路径的角度位置的函数，并且这导致系统硬件节省 。 从中心路径逐渐向外的辐射路径得到的检测器信号的信息内容逐渐小于从中心辐射路径导出的检测器信号的信息内容。 外部检测器信号的采样率可以更低，而不会丢失信息。 向外检测器信号的分辨率也可以更低，并且根据需要，采样率或分辨率或两者都可以根据检测器相对于中心路径的位置而变化。

公开(公告)号：US20110168900A1

公开(公告)日：2011-07-14

申请号：US13119791

申请日：2009-03-13

申请人： John M. Dobbs

发明人： John M. Dobbs

IPC分类号： G01N23/18

CPC分类号： G01N23/00 ,  F16L2101/30 ,  G01B15/02 ,  G01M11/00 ,  G01N17/00 ,  G01N23/02 ,  G01N23/18 ,  G01N2223/628 ,  G01N2291/0234

摘要： The present application provides techniques and/or systems for inspecting a pipe, or rather measuring one or more characteristics of a pipe, using radiation. A carriage, mounted to the pipe, may provide a mechanism for propelling a radiation source and a detector along the pipe. The detector is configured such that it can receive radiation that has traversed both a wall of the pipe and an obstacle, such as a pipe support. In this way, portions of a pipe that are traditionally difficult to inspect may be inspected easily with minimal human intervention.

摘要翻译： 本申请提供了使用辐射来检查管道的技术和/或系统，或者甚至测量管道的一个或多个特性。 安装到管道上的托架可以提供用于沿管道推进辐射源和检测器的机构。 检测器被构造成使得其可以接收已经穿过管道的壁和诸如管道支撑件的障碍物的辐射。 以这种方式，传统上难以检查的管道的部分可以以最少的人为干预来容易地检查。

公开(公告)号：US6148058A

公开(公告)日：2000-11-14

申请号：US177998

申请日：1998-10-23

申请人： John M. Dobbs

发明人： John M. Dobbs

IPC分类号： A61B6/03

CPC分类号： A61B6/12 ,  A61B6/032 ,  A61B6/0478 ,  A61B6/08 ,  A61B6/587 ,  Y10S378/901

摘要： A rotating-patient computed tomography scanning system in which the detector offset is measured in real time for each scan. At least one x-ray--absorbent reference structure is disposed in the field of view, so that a projection of the reference structure is present in every view of the patient. The position of the reference structure can be expressed in terms of the detector offset for each view of the patient. The detector offset for a given image can therefore be determined at the time the image data is obtained. The offset value is used in the data obtained from the current scan to reconstruct images that are free of artifacts that are caused by errors in the detector offset.

摘要翻译： 旋转患者计算机断层摄影扫描系统，其中每次扫描实时测量检测器偏移。 在视野中设置至少一个x射线吸收基准结构，使得在患者的每个视图中存在参考结构的突出部。 参考结构的位置可以根据患者的每个视图的检测器偏移来表示。 因此，可以在获得图像数据时确定给定图像的检测器偏移。 在从当前扫描获得的数据中使用偏移值来重建没有由检测器偏移中的错误引起的伪影的图像。