Wireless mesh network with secure automatic key loads to wireless devices
    1.
    发明授权
    Wireless mesh network with secure automatic key loads to wireless devices 有权
    无线网状网络,具有安全的自动密钥加载到无线设备

    公开(公告)号:US08208635B2

    公开(公告)日:2012-06-26

    申请号:US11983943

    申请日:2007-11-13

    IPC分类号: H04L29/06 H04L9/00

    摘要: A wireless mesh network provides secure communication by encrypting data using one or more encryption keys. A configuration device in communication with a security manager of the network provides a temporary secure communication path between the security manager and a new field device to be added to the mesh network. Cryptographic material and other configuration data can then be transferred between the security manager of the network and the new field device securely via the configuration device.

    摘要翻译: 无线网状网络通过使用一个或多个加密密钥加密数据来提供安全通信。 与网络的安全管理器通信的配置设备在安全管理器和要添加到网状网络的新现场设备之间提供临时安全通信路径。 然后可以通过配置设备安全地在网络的安全管理器和新的现场设备之间传送加密材料和其他配置数据。

    Wireless mesh network with secure automatic key loads to wireless devices
    2.
    发明申请
    Wireless mesh network with secure automatic key loads to wireless devices 有权
    无线网状网络,具有安全的自动密钥加载到无线设备

    公开(公告)号:US20090125713A1

    公开(公告)日:2009-05-14

    申请号:US11983943

    申请日:2007-11-13

    IPC分类号: H04L9/00

    摘要: A wireless mesh network provides secure communication by encrypting data using one or more encryption keys. A configuration device in communication with a security manager of the network provides a temporary secure communication path between the security manager and a new field device to be added to the mesh network. Cryptographic material and other configuration data can then be transferred between the security manager of the network and the new field device securely via the configuration device.

    摘要翻译: 无线网状网络通过使用一个或多个加密密钥加密数据来提供安全通信。 与网络的安全管理器通信的配置设备在安全管理器和要添加到网状网络的新现场设备之间提供临时安全通信路径。 然后可以通过配置设备安全地在网络的安全管理器和新的现场设备之间传送加密材料和其他配置数据。

    WIRELESS MESH NETWORK WITH SECURE AUTOMATIC KEY LOADS TO WIRELESS DEVICES
    4.
    发明申请
    WIRELESS MESH NETWORK WITH SECURE AUTOMATIC KEY LOADS TO WIRELESS DEVICES 审中-公开
    无线网络,具有安全的自动主要负载到无线设备

    公开(公告)号:US20120237034A1

    公开(公告)日:2012-09-20

    申请号:US13479869

    申请日:2012-05-24

    IPC分类号: H04K1/00

    摘要: A wireless mesh network provides secure communication by encrypting data using one or more encryption keys. A configuration device in communication with a security manager of the network provides a temporary secure communication path between the security manager and a new field device to be added to the mesh network. Cryptographic material and other configuration data can then be transferred between the security manager of the network and the new field device securely via the configuration device.

    摘要翻译: 无线网状网络通过使用一个或多个加密密钥加密数据来提供安全通信。 与网络的安全管理器通信的配置设备在安全管理器和要添加到网状网络的新现场设备之间提供临时安全通信路径。 然后可以通过配置设备安全地在网络的安全管理器和新的现场设备之间传送加密材料和其他配置数据。

    Method and apparatus to efficiently interpolate polygon attributes in
two dimensions at a prescribed clock rate
    5.
    发明授权
    Method and apparatus to efficiently interpolate polygon attributes in two dimensions at a prescribed clock rate 失效
    以规定的时钟速率有效地在多维属性中插入多边形属性的方法和装置

    公开(公告)号:US6072505A

    公开(公告)日:2000-06-06

    申请号:US53589

    申请日:1998-04-01

    IPC分类号: G06T3/40 G06T1/00 G06F15/00

    CPC分类号: G06T3/403

    摘要: A rasterizer comprised of a bounding box calculator, a plane converter, a windower, and incrementers. For each polygon to be processed, a bounding box calculation is performed which determines the display screen area, in spans, that totally encloses the polygon and passes the data to the plane converter. The plane converter also receives as input attribute values for each vertex of the polygon. The plane converter computes planar coefficients for each attribute of the polygon, for each of the edges of the polygon. The plane converter unit computes the start pixel center location at a start span and a starting coefficient value at that pixel center. The computed coefficients also include the rate of change or gradient, for each polygon attribute in the x and y directions, respectively. The plane converter also computes line coefficients for each of the edges of the polygon. Line equation values are passed through to the windower where further calculations allow the windower to determine which spans are either covered or intersected by the polygon. The incrementers receive the span coverage data from the windower in addition to receiving planar coefficient values from the plane converter. The incrementers utilize the data from both the windower and plane converter to walk or traverse the polygon in those intersected spans, pixel by pixel. As the incrementer visits each pixel, vertex attribute values are interpolated to each pixel.

    摘要翻译: 由边界计算器,平面转换器,加窗器和加法器构成的光栅化器。 对于要处理的每个多边形,执行边界框计算,其确定完全包围多边形并将数据传递到平面转换器的跨度的显示屏幕区域。 平面转换器还接收多边形的每个顶点的输入属性值。 平面转换器为多边形的每个边缘计算多边形的每个属性的平面系数。 平面转换器单元计算开始跨度处的开始像素中心位置和该像素中心处的起始系数值。 所计算的系数也分别包括x和y方向上每个多边形属性的变化率或梯度。 平面转换器还为多边形的每个边缘计算线系数。 线路方程值被传递到风力发电机,进一步的计算允许风轮确定哪个跨度被多边形覆盖或相交。 除了从平面转换器接收平面系数值之外,增量器还接收来自风力发电机的跨距覆盖数据。 增量器利用来自两台风力发电机和平面转换器的数据逐行扫描或横穿那些相交的跨度中的多边形。 随着增量器访问每个像素,顶点属性值被内插到每个像素。

    Method for resolving priority between a calligraphically-displayed point
feature and both raster-displayed faces and other
calligraphically-displayed point features in a CIG system
    6.
    发明授权
    Method for resolving priority between a calligraphically-displayed point feature and both raster-displayed faces and other calligraphically-displayed point features in a CIG system 失效
    用于在CIG系统中解析书法显示点特征与两个光栅显示面和其他书法显示点特征之间的优先级的方法

    公开(公告)号:US5293467A

    公开(公告)日:1994-03-08

    申请号:US679806

    申请日:1991-04-03

    IPC分类号: G06T15/40 G06F15/62

    CPC分类号: G06T15/405

    摘要: A method for determining the proper occulation relationship between a calligraphic point and at least one of another calligraphic point and a surface in a raster image, divides the total image screen into an array of spans, each containing an ordered set of pixels which may be further divided into an array of subpixels; determines which of the subpixels on the total screen lie inside each of the raster surfaces and calligraphic points which must be considered for the image totality; then orders the distance of each of the raster surfaces from the viewing point and also orders the distance of each of the point features from the viewing point; and then compares the ordered distances of each point to at least one of the raster surface distances and other point distances to determine which of subpixels of the point or surface/other point are occluded and which subpixels are visible.

    摘要翻译: 一种用于确定书法点与另一书法点和光栅图像中的表面之间的正确的关系的方法,将总图像屏幕划分成跨度阵列,每个跨度阵列包含有序的像素集合,其可以进一步 分为子像素阵列; 确定总屏幕上的哪些子像素位于为图像整体必须考虑的光栅表面和书法点之内; 然后从观察点命令每个光栅表面的距离,并且还从观察点排列每个点特征的距离; 然后将每个点的有序距离与光栅表面距离和其他点距离中的至少一个进行比较,以确定点或表面/其他点的哪些子像素被遮挡以及哪些子像素是可见的。

    3-D rendering texture caching scheme
    7.
    发明授权
    3-D rendering texture caching scheme 有权
    3-D渲染纹理缓存方案

    公开(公告)号:US07050063B1

    公开(公告)日:2006-05-23

    申请号:US09502994

    申请日:2000-02-11

    IPC分类号: G09G5/00

    摘要: A 3D rendering texture caching scheme that minimizes external bandwidth requirements for texture and increases the rate at which textured pixels are available. The texture caching scheme efficiently pre-fetches data at the main memory access granularity and stores it in cache memory. The data in the main memory and texture cache memory is organized in a manner to achieve large reuse of texels with a minimum of cache memory to minimize cache misses. The texture main memory stores a two dimensional array of texels, each texel having an address and one of N identifiers. The texture cache memory has addresses partitioned into N banks, each bank containing texels transferred from the main memory that have the corresponding identifier. A cache controller determines which texels need to be transferred from the texture main memory to the texture cache memory and which texels are currently in the cache using a least most recently used algorithm. By labeling the texture map blocks (double quad words), a partitioning scheme is developed which allow the cache controller structure to be very modular and easily realized. The texture cache arbiter is used for scheduling and controlling the actual transfer of texels from the texture main memory into the texture cache memory and controlling the outputting of texels for each pixel to an interpolating filter from the cache memory.

    摘要翻译: 3D渲染纹理缓存方案,可最大限度地减少纹理的外部带宽需求,并提高纹理像素可用的速率。 纹理缓存方案有效地预取主存储器访问粒度的数据并将其存储在高速缓冲存储器中。 主存储器和纹理高速缓冲存储器中的数据被组织成以最小的高速缓冲存储器实现大量的纹理复用的重用,以最小化高速缓存未命中。 纹理主存储器存储纹素的二维阵列,每个纹素具有地址和N个标识符之一。 纹理高速缓冲存储器具有分割成N个存储体的地址,每个存储体包含从主存储器传送的具有相应标识符的纹素。 高速缓存控制器使用最近最少使用的算法来确定哪个纹素需要从纹理主存储器传送到纹理高速缓存存储器以及哪个纹素目前在高速缓存中。 通过标记纹理贴图块(双四字),开发了一种分区方案,允许高速缓存控制器结构非常模块化,轻松实现。 纹理高速缓存仲裁器用于调度和控制纹理主体存储器到纹理高速缓存存储器中的纹素的实际传输,并且控制从高速缓冲存储器输出每个像素的纹理像素到内插滤波器。

    Methods and systems for rendering line and point features for display
    8.
    发明授权
    Methods and systems for rendering line and point features for display 失效
    渲染线和点特征进行显示的方法和系统

    公开(公告)号:US06433790B1

    公开(公告)日:2002-08-13

    申请号:US09234133

    申请日:1999-01-19

    IPC分类号: G09G536

    摘要: A method and system for rendering a feature, such as a line, for display on an array of pixels. With this method, the line is identified on the pixel array, the line is expanded into a polygon, and color values are determined for the pixels within the polygon. Also, an antialiasing region is identified in the polygon, and blend values are computed for the pixels in this antialiasing region. Then, the color values determined for the pixels in the antialiasing region are modified as a function of these computed blend values. The pixels in the antialiasing region may then be shown at their modified color values, while the pixels that are in the polygon but not in the antialising region may be shown at their original determined color value. Preferably, the blend values for the pixels in the antialiasing region are calculated as a function of the locations of the pixels in that region. For example, the blend value for each of these pixels may be calculated as a function of four values, each one representing the Manhattan distance from the pixel to a respective one of the edges of the polygon. Also, preferably the antialiasing region has a uniform width, and this region extends inward from side edges and outward from end edges of the formed polygon.

    摘要翻译: 用于渲染诸如线的特征的方法和系统,用于在像素阵列上显示。 使用该方法,在像素阵列上识别线,将线扩展为多边形,并且确定多边形内的像素的颜色值。 此外,在多边形中识别抗混叠区域,并且为该抗混叠区域中的像素计算混合值。 然后,针对抗锯齿区域中的像素确定的颜色值被修改为这些计算的混合值的函数。 然后可以以其修改的颜色值示出抗锯齿区域中的像素,而可以以其原始确定的颜色值示出处于多边形但不在反偏移区域中的像素。 优选地,根据该区域中的像素的位置来计算抗锯齿区域中的像素的混合值。 例如,可以将这些像素中的每一个的混合值计算为四个值的函数,每个值表示从像素到多边形的相应边缘的曼哈顿距离。 此外,优选地,抗锯齿区域具有均匀的宽度,并且该区域从侧边缘向内延伸并且从形成的多边形的端边缘向外延伸。

    Pixel and line enhancement method and apparatus
    9.
    发明授权
    Pixel and line enhancement method and apparatus 失效
    像素和线增强方法和装置

    公开(公告)号:US5016193A

    公开(公告)日:1991-05-14

    申请号:US178934

    申请日:1988-04-07

    CPC分类号: G09G5/391

    摘要: In computer image generation (CIG) systems, image data for defining pixel modulation values and for supporting a display having a predetermined resolution are determined for defining a scene. For some applications, such as for representing background and/or peripheral areas, it may be acceptable to use data having a lower resolution than the predetermined resolution. Method and apparatus for taking a portion of the image data obtain derived data by a predetermined combination of the portion of image data. Lines of composed data supplied to a display device include a sequence of pixel modulation values selected from the portion of image data and the derived data. In one embodiment the number of lines supported by the image data is doubled with each line containing 50% image data and 50% derived data. Pixel modulation values may be oversampled between adjacent lines of the display for obtaining derived data. Respective composed data for a plurality of display devices may be obtained from a respective plurality of portions of the image data, thus obviating the need to provide additional video processing channels along with associated hardware.