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20 条记录 (耗时 0.026 秒)

    Hardware-supported secure network boot
    1.
    发明申请
    Hardware-supported secure network boot 审中-公开
    硬件支持的安全网络引导

    公开(公告)号：US20060129797A1

    公开(公告)日：2006-06-15

    申请号：US11012513

    申请日：2004-12-15

    申请人： Glenn Durfee ,  Dirk Balfanz ,  Diana Kathryn Smetters ,  Paul Joseph Stewart

    发明人： Glenn Durfee ,  Dirk Balfanz ,  Diana Kathryn Smetters ,  Paul Joseph Stewart

    IPC分类号： G06F9/24

    CPC分类号： G06F21/575

    摘要： Systems and methods for establishing an authenticated and encrypted network connection in a boot protocol, and specifying the boot image to be loaded by a client, are disclosed. A hardware token or other portable medium, such as a USB drive or device, CD, mini-CD, or floppy diskette, is used to store authentication and/or identification information for a server. A client uses the information on the token to authenticate the network server upon initial connection to the network and request a boot image. Furthermore, the client and server may use the authentication information from the token to establish secure communications and mutually authenticate each other.

    摘要翻译： 公开了用于在引导协议中建立经认证和加密的网络连接以及指定由客户机加载的引导映像的系统和方法。 使用诸如USB驱动器或设备，CD，mini-CD或软盘的硬件令牌或其他便携式介质来存储用于服务器的认证和/或识别信息。 客户端使用令牌上的信息在初始连接到网络并验证启动映像时对网络服务器进行身份验证。 此外，客户端和服务器可以使用来自令牌的认证信息来建立安全通信并相互认证。

    Texture mapping of photographic images to CAD surfaces
    4.
    发明授权
    Texture mapping of photographic images to CAD surfaces 失效
    摄影图像到CAD曲面的纹理映射

    公开(公告)号：US5898438A

    公开(公告)日：1999-04-27

    申请号：US746595

    申请日：1996-11-12

    申请人： Paul Joseph Stewart ,  Yifan Chen

    发明人： Paul Joseph Stewart ,  Yifan Chen

    IPC分类号： G06T19/00 ,  G06T11/40

    CPC分类号： G06T15/04

    摘要： A method for mapping a two-dimensional image of a physical object onto a computer generated three-dimensional surface defined by a plurality of surface points in a CAD space has the steps of creating a two-dimensional texture image plane of the physical object by taking a photograph of the physical object with a photographic device and converting the photograph into a texture image plane having a plurality of texture image plane points, determining a physical position of the photographic device with respect to the physical object, and transferring the texture image plane onto the three-dimensional surface. The transfer is accomplished by positioning a synthetic camera in the CAD space with respect to the three-dimensional surface according to the physical position of the photographic device, mapping each of the plurality of surface points viewable by the synthetic camera to a corresponding texture image point in the texture image plane, and assigning texture coordinates to each of the plurality of surface points from the corresponding texture image plane point.

    摘要翻译： 用于将物理对象的二维图像映射到由CAD空间中的多个表面点限定的计算机生成的三维表面上的方法具有以下步骤：通过采取物理对象来创建二维纹理图像平面 使用摄影装置拍摄物体的照片，并将照片转换为具有多个纹理图像平面点的纹理图像平面，确定摄影装置相对于物体的物理位置，并将纹理图像平面传送到 三维表面。 通过根据摄影装置的物理位置将合成相机相对于三维表面定位在CAD空间中来实现传送，将由合成相机可视的多个表面点中的每一个映射到对应的纹理图像点 在纹理图像平面中，并且从相应的纹理图像平面点将纹理坐标分配给多个表面点中的每一个。

    System and method for direct modeling of fillets and draft angles
    5.
    发明授权
    System and method for direct modeling of fillets and draft angles 失效
    用于直角成型鱼片和拔模角的系统和方法

    公开(公告)号：US5731816A

    公开(公告)日：1998-03-24

    申请号：US550151

    申请日：1995-10-30

    申请人： Paul Joseph Stewart ,  Yifan Chen

    发明人： Paul Joseph Stewart ,  Yifan Chen

    IPC分类号： G06T17/20 ,  G06T17/00

    CPC分类号： G06T17/20

    摘要： A system and method for direct modeling of fillets and draft angles include forming a fillet region having a first transition from a surface feature to the fillet region and a second transition from a base surface to the fillet region while maintaining a predetermined continuity at the first and second transitions. The system and method select (75) a general form of a fillet profile with a single basis function to describe the fillet, apply (76) the fillet profile to either side of a constant central region on the surface feature to form a surface feature profile, and sweep (77) the surface feature profile within the feature boundary to form the fillet region. The present invention allows such fillet regions to be subsequently modified while maintaining the predetermined continuity at the first and second transitions by applying a reparametrization (78) to the basis function to modify the fillet region.

    摘要翻译： 用于对鱼片和拔模角进行直接建模的系统和方法包括形成具有从表面特征到圆角区域的第一过渡的圆角区域以及从基面到圆角区域的第二过渡，同时保持在第一和第 第二次过渡。 系统和方法选择（75）具有单个基函数的圆角轮廓的一般形式来描述圆角，将圆角轮廓应用于（76）圆角轮廓到表面特征上的恒定中心区域的任一侧以形成表面特征轮廓 ，并扫描（77）特征边界内的表面特征轮廓以形成圆角区域。 本发明允许随后修改这样的圆角区域，同时通过对基函数应用重新参数化（78）来维持第一和第二转变处的预定连续性，以修改圆角区域。

    Method and system for manipulating a three-dimensional object utilizing a force feedback interface
    7.
    发明授权
    Method and system for manipulating a three-dimensional object utilizing a force feedback interface 失效
    利用力反馈界面来操纵三维物体的方法和系统

    公开(公告)号：US5973678A

    公开(公告)日：1999-10-26

    申请号：US921132

    申请日：1997-08-29

    申请人： Paul Joseph Stewart ,  Yifan Chen ,  Pietro Buttolo

    发明人： Paul Joseph Stewart ,  Yifan Chen ,  Pietro Buttolo

    IPC分类号： G06F3/00 ,  G06F3/01 ,  G09G5/00

    CPC分类号： G06F3/016 ,  G06F3/011 ,  G05B2219/34141 ,  G05B2219/40619

    摘要： A method and system for manipulating a three-dimensional object in a computer-aided design (CAD) environment utilizes a force feedback interface. A gravitational sphere is defined around each of the plurality of input parameters of a mathematical model defining a shape, location and orientation of the object. A force is applied to the force feedback interface based on the gravitational spheres and the position of the force feedback interface. An input signal is received from the force feedback interface based on the applied force indicating selection of one of the plurality of input parameters. The selected input parameter can then be edited according to an edit signal generated by the user via the force feedback interface. In addition, the edit signal can be limited according to predetermined constraints via the force feedback interface.

    摘要翻译： 用于在计算机辅助设计（CAD）环境中操纵三维物体的方法和系统利用力反馈界面。 围绕限定对象的形状，位置和取向的数学模型的多个输入参数中的每一个定义重力球。 基于重力球和力反馈界面的位置将力施加到力反馈界面。 基于所述施加的力，从所述力反馈接口接收输入信号，所述力指示所述多个输入参数之一的选择。 然后可以根据用户通过力反馈界面产生的编辑信号来编辑所选择的输入参数。 此外，可以经由力反馈界面根据预定的约束来限制编辑信号。

    Methods of using mixed resolution displays
    9.
    发明授权
    Methods of using mixed resolution displays 失效
    混合分辨率显示的方法

    公开(公告)号：US07333071B2

    公开(公告)日：2008-02-19

    申请号：US10015677

    申请日：2001-12-17

    申请人： Patrick Baudisch ,  Nathaniel S. Good ,  Paul Joseph Stewart

    发明人： Patrick Baudisch ,  Nathaniel S. Good ,  Paul Joseph Stewart

    IPC分类号： G09G5/00

    CPC分类号： H04N9/12 ,  G06F3/1438 ,  G06F3/1446 ,  G09G3/006 ,  G09G2320/0693 ,  G09G2340/0407

    摘要： A method of using two or more display units with different resolutions which have been combined such that the geometry of images displayed across the multiple display units is preserved and the image appears to be substantially continuous to a viewer of the image. Compatibility of the sizes of image elements on different display units is achieved by using display unit-specific scaling to compensate for the different pixel sizes on the individual display units.

    摘要翻译： 使用已经组合的具有不同分辨率的两个或更多个显示单元的方法，使得跨多个显示单元显示的图像的几何形状被保留，并且图像看起来对于图像的观看者基本上是连续的。 通过使用显示单元特定的缩放来补偿各个显示单元上的不同像素尺寸，可以实现不同显示单元上图像元素大小的兼容性。

    System and method for design of experiments using direct surface manipulation of a mesh model
    10.
    发明授权
    System and method for design of experiments using direct surface manipulation of a mesh model 有权

    公开(公告)号：US07079996B2

    公开(公告)日：2006-07-18

    申请号：US09681732

    申请日：2001-05-30

    申请人： Paul Joseph Stewart ,  Pietro Buttolo ,  Yifan Chen

    发明人： Paul Joseph Stewart ,  Pietro Buttolo ,  Yifan Chen

    IPC分类号： G06G7/48

    CPC分类号： G06F17/5095 ,  G06F17/5018 ,  G06T17/20

    摘要： A system and method for design of experiments (DOE) using direct surface manipulation of a mesh model. The method includes the steps of selecting a geometric model in a computer-aided design (CAD) format, converting the geometric model into a mesh model and evaluating the mesh model using a computer-aided engineering (CAE) analysis. The method also includes the steps of determining whether to continue generating the design of experiments response, and modifying a surface of the mesh model by varying a predetermined parameter, wherein the surface is modified using direct surface manipulation (DSM), the mesh model is updated and the updated mesh model is used in continuing generating the design of experiments response, if determined to continue the design of experiments. The method further includes the steps of using the results of the CAE analysis for the design of experiments.