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125 条记录 (耗时 0.029 秒)

    Movement-corrected multi-shot method for diffusion-weighted imaging in magnetic resonance tomography
    73.
    发明申请
    Movement-corrected multi-shot method for diffusion-weighted imaging in magnetic resonance tomography 有权
    在磁共振断层扫描中用于扩散加权成像的运动校正多镜法

    公开(公告)号：US20050237057A1

    公开(公告)日：2005-10-27

    申请号：US11104940

    申请日：2005-04-13

    申请人： David Porter

    发明人： David Porter

    IPC分类号： A61B5/055 ,  G01R33/561 ,  G01R33/563 ,  G01R33/565 ,  G01R33/567 ,  G01V3/00

    CPC分类号： G01R33/56341 ,  G01R33/56509

    摘要： In a multi-shot method for diffusion-weighted imaging in magnetic resonance tomography, the sampling of the k-matrix in the readout direction ensues in segments, and immediately after acquisition of an image data set by readout of one segment by means of echo signals, a navigation data set is acquired by readout of the middle region of the k-matrix at virtually the same time. A movement-corrected diffusion-weighted MRT image is generated by combining of the image data sets with the corresponding navigation data sets and subsequent Fourier transformation.

    摘要翻译： 在用于磁共振断层成像中的扩散加权成像的多重方法中，读出方向上的k矩阵的采样在段中发生，并且在通过回波信号读出一个段之后立即获取图像数据集之后 通过在几乎相同的时间读出k矩阵的中间区域来获取导航数据集。 通过将图像数据组与相应的导航数据集合和随后的傅里叶变换组合来生成运动校正的扩散加权MRT图像。

    Pet grooming tool
    74.
    发明申请
    Pet grooming tool 有权
    宠物美容工具

    公开(公告)号：US20050000467A1

    公开(公告)日：2005-01-06

    申请号：US10892781

    申请日：2004-07-16

    申请人： Angela Porter ,  David Porter

    发明人： Angela Porter ,  David Porter

    IPC分类号： A01K13/00 ,  B26B21/02 ,  B26B21/16

    CPC分类号： B26B21/16 ,  A01K13/002 ,  A46B2200/1093

    摘要： A pet grooming tool, for use with a furry pet such as a dog or cat having loose hair and non-loose hair, is adapted for removing the loose hair from the pet. The grooming tool comprises an elongate handle portion extending generally along a handle axis, and a pet engageable portion secured to the handle portion. The pet engageable portion includes a blade portion and a plurality of teeth. The blade portion includes a blade edge. The teeth extend from the blade edge. The pet engageable portion is secured to the handle portion in a manner so that pulling the handle portion generally along the handle axis while the pet engageable portion is in engagement with the pet causes the blade portion to engage the loose hair of the pet and pull it from the pet without cutting or pulling the non-loose hair from the pet.

    摘要翻译： 宠物美容工具，用于与毛发宠物如具有松散头发和非松散头发的狗或猫一起使用，适于从宠物中去除松散的头发。 整修工具包括大致沿着手柄轴线延伸的细长把手部分和固定到把手部分的宠物可接合部分。 宠物可接合部分包括刀片部分和多个齿。 叶片部分包括叶片边缘。 齿从叶片边缘延伸。 宠物可接合部分以这样的方式固定到手柄部分，使得当宠物可接合部分与宠物接合时，大致沿着手柄轴线拉动手柄部分，使得刀片部分接合宠物的松散头发并将其拉动 从宠物没有切割或从宠物拉起非松散的头发。

    Motion decoy
    75.
    发明授权
    Motion decoy 失效
    运动诱饵

    公开(公告)号：US06665975B2

    公开(公告)日：2003-12-23

    申请号：US09952713

    申请日：2001-09-14

    申请人： David Porter

    发明人： David Porter

    IPC分类号： A01M3106

    CPC分类号： A01M31/06

    摘要： A motion waterfowl decoy. The preferred embodiment has a pair of wings mounted to an axle such that the wings rotate with the axle. The wings' undersides are preferably lighter than their topsides. A pull cord is wound about the axle so that unwinding the cord will spin the axle and wings. As the wings rotate, their lighter underside is alternately displayed, creating a strobelike effect resembling wings flapping. A biasing device such as a length of rubber or latex tubing or a spring is attached to the axle. Rotating the axle by pulling the cord loads the biasing device. When the cord is released, the biasing device will unload, causing the axle and wings to rotate in the opposite direction and rewinding the pull cord about the axle. The decoy preferably floats, and can be used to disturb the water's surface in imitation of landing or feeding waterfowl.

    摘要翻译： 运动水鸟诱饵。 优选实施例具有安装到轴的一对翼片，使得翼部与轴一起旋转。 机翼的下侧优选比它们的上侧轻。 拉绳缠绕在车轴上，以便松开绳索将旋转车轴和机翼。 当翅膀旋转时，它们的更轻的下侧交替地显示，产生类似翅膀拍动的振动效应。 诸如橡胶或乳胶管或弹簧的长度的偏置装置附接到轴上。 拉动绳索旋转轴装载偏置装置。 当松开绳索时，偏置装置将卸载，导致轴和翼沿相反方向旋转并且绕着轴重绕拉绳。 诱饵优选地漂浮，并且可以用于在模仿着陆或喂养水禽时干扰水的表面。

    System and method for high definition video rescaling
    76.
    发明授权
    System and method for high definition video rescaling 有权
    高分辨率视频重新定标的系统和方法

    公开(公告)号：US06501484B1

    公开(公告)日：2002-12-31

    申请号：US09406159

    申请日：1999-09-27

    申请人： David Porter

    发明人： David Porter

    IPC分类号： G06T340

    CPC分类号： G06T3/40

    摘要： A system and method for high definition video rescaling comprises receiving a source image including source pixels each having an associated amplitude, creating destination pixel locations for a rescaled image in accordance with a resealing factor, providing a normalized filter function, multiplying the normalized filter function with the amplitude of each source pixel to produce a filter function for each source pixel, and summing together the filter functions for the source pixels to generate a reconstructed function. The reconstructed function is sampled at the destination pixel locations to provide amplitudes for destination pixels. The amplitudes of the destination pixels are then incorporated into a rescaled image. The filter function is preferably a sinc product function. The sinc product function is a first sinc function having a first period multiplied by a second sinc function having a second period that is an odd integer multiple of the first period, so that the sinc product function has a smaller amplitude than a sinc function as the function converges to zero.

    摘要翻译： 用于高清晰度视频重定标的系统和方法包括：接收源图像，其包括各自具有相关振幅的源像素，根据重新密码因子创建重新缩放图像的目标像素位置，提供归一化滤波函数，将归一化滤波函数与 每个源像素的幅度以产生每个源像素的滤波函数，并且将源像素的滤波器函数相加在一起以产生重构函数。 重建的功能在目的地像素位置被采样，以提供目的地像素的幅度。 然后将目的地像素的振幅合并到重新缩放的图像中。 滤波器功能最好是sinc产品功能。 正弦积函数是具有第一周期乘以具有第一周期的第二周期的第一周期的第一正弦函数，使得正弦函数具有比正弦函数小的振幅， 函数收敛到零。

    Gas dryer
    77.
    发明授权
    Gas dryer 失效
    气体干燥器

    公开(公告)号：US6148535A

    公开(公告)日：2000-11-21

    申请号：US107061

    申请日：1998-06-30

    申请人： David Porter

    发明人： David Porter

    IPC分类号： B01D53/26 ,  F26B21/06

    CPC分类号： B01D53/261

    摘要： A gas dryer comprises a chamber with an inlet and an outlet for a gas which is to be dried by flowing under pressure through the dryer. The chamber is arranged so that the direction of flow of the gas is between its end faces. The location of the inlet and the outlet for gas to be dried are such that, when the chamber is mounted so that the direction of flow of gas between the inlet and the outlet is off the vertical, neither the inlet nor the outlet is arranged centrally at the low point of the chamber. The dryer includes a medium in the chamber for adsorbing liquid entrained with the gas. A drain tube extends from the low point region of the chamber at which liquid can collect when the dryer is mounted for use off the vertical into a depressurization outlet through which gas leaves the chamber when the dryer is depressurized. Liquid which has collected in the low region of the chamber is discharged into the depressurization outlet.

    摘要翻译： 气体干燥器包括具有入口和出口的室，气体将通过在压力下流过干燥器而被干燥。 该室被布置成使得气体的流动方向在其端面之间。 待干燥气体的入口和出口的位置使得当安装腔室使得入口和出口之间的气体的流动方向离开垂直方向时，入口和出口都不排列在中心 在房间的低点。 干燥机包括在室中的介质，用于吸附夹带有气体的液体。 排水管从腔室的低点区域延伸，当干燥器安装时，液体可以收集的低点区域，用于从垂直方向用于减压出口，当干燥器被减压时，排气管从气体离开室。 已经收集在室的低区域中的液体被排出到减压出口中。

    Well light
    79.
    发明授权
    Well light 失效
    好光

    公开(公告)号：US5230559A

    公开(公告)日：1993-07-27

    申请号：US814993

    申请日：1992-01-08

    申请人： David Porter ,  Thomas A. Garber

    发明人： David Porter ,  Thomas A. Garber

    IPC分类号： F21S8/00 ,  F21S8/02 ,  F21V14/02 ,  F21V21/22 ,  F21V21/30

    CPC分类号： F21V21/30 ,  F21S8/022 ,  F21V14/02 ,  F21V21/22 ,  F21W2111/02 ,  F21W2131/10 ,  F21W2131/107 ,  F21W2131/109

    摘要： A lighting apparatus is disclosed which includes a lighting source suspended inside a cylindrical housing. The light source is connected to a device for suspending the light source within the housing such that the housing can be removed from the housing by lifting the device and disengaging it from the housing. The light source may be suspended inside the housing in varying configurations to provide different illumination patterns.

    摘要翻译： 公开了一种照明装置，其包括悬挂在圆柱形壳体内的照明源。 光源连接到用于将光源悬挂在壳体内的装置，使得可以通过提升装置并将其从壳体脱离而将壳体从壳体移除。 光源可以以不同的配置悬挂在壳体内，以提供不同的照明图案。

    Method of forming a hollow blade
    80.
    发明授权
    Method of forming a hollow blade 失效
    形成中空叶片的方法

    公开(公告)号：US5063662A

    公开(公告)日：1991-11-12

    申请号：US641327

    申请日：1991-01-15

    申请人： David Porter ,  James R. Dillner ,  Peter E. Leibfried ,  William R. Reimels ,  J. George Asfalg

    发明人： David Porter ,  James R. Dillner ,  Peter E. Leibfried ,  William R. Reimels ,  J. George Asfalg

    IPC分类号： B21D11/14 ,  B23P15/04

    CPC分类号： B23P15/04 ,  B21D11/14 ,  Y10T29/49336 ,  Y10T29/49339

    摘要： An untwisted hollow blade with internal reinforcing ribs is formed by diffusion bonding two halves. A predominate portion of the blade twist is accomplished by gravity creep deforming against a supporting die, aided by applying twisting moments at the ends. The blade is free to move axially at one end. Simultaneous heat soak for solution heat treatment minimizes overall grain growth. Later, hot forming between heated dies is supplemented with internal blade pressure after die closing. Metal flow is more easily predictable whereby finite element analysis may establish the proper starting form.

    摘要翻译： 通过扩散接合两半形成具有内部加强肋的未扭绞中空叶片。 叶片扭转的主要部分是通过在支撑模具上的重力蠕变变形来实现的，辅助通过在端部施加扭转力矩。 刀片可在一端自由移动。 用于固溶热处理的同时热浸最小化整体晶粒生长。 之后，加热后的模具之间的热成型在封闭后补充内部刀片压力。 金属流动更容易预测，有限元分析可以建立适当的起始形式。