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    • 3. 发明授权
    • Surround-vision display system
    • 环绕显示系统
    • US07123211B2
    • 2006-10-17
    • US10633041
    • 2003-07-31
    • Andreas Nowatzyk
    • Andreas Nowatzyk
    • G09G5/00
    • G09G3/005G03B25/02G09G3/2014G09G3/32
    • A surround-vision display system with a very high visual dynamic range is made possible by distributing a limited number of LED's on the inside of a drum and then spinning that drum around a user. The pixel information for each horizontal position in space is sent to each corresponding LED it visits that position. The LED's are arranged in a grid on a panel tile, and the panel tile is tilted slightly, e.g., at 1.1-degrees. The result is each panel tile presents a continuous vertical stripe in the picture frame as all its LED's are swept by in the drum motion. Several panel tiles stacked vertically inside the drum all contribute to the whole height of the picture frame, e.g., several feet. The entire inside circumference of the drum is populated with the LED panel tiles to keep frame refresh rates up to avoid flicker while keeping drum rotation speeds down to reasonable levels. Thus even though the LED's and drum are moving, the image projected appears to be relatively stationary.
    • 通过将有限数量的LED分配在鼓的内侧,然后将该鼓旋转到用户周围,可以实现具有非常高的视觉动态范围的环视显示系统。 空间中每个水平位置的像素信息被发送到它访问该位置的每个对应的LED。 LED被布置在面板上的格子中,并且面板瓦稍微倾斜,例如以1.1度倾斜。 结果是每个面板瓦片在图像帧中呈现连续的垂直条纹,因为其所有的LED被滚筒运动扫过。 在滚筒内垂直堆叠的几个面板瓦片都有助于相框的整个高度,例如几英尺。 滚筒的整个内圆周都装有LED面板瓦片,以保持框架刷新率,以避免闪烁,同时保持滚筒旋转速度降到合理的水平。 因此,即使LED和鼓正在移动,投影的图像似乎相对静止。
    • 6. 发明授权
    • System and method for generating cache coherence directory entries and error correction codes in a multiprocessor system
    • 用于在多处理器系统中生成高速缓存一致目录条目和纠错码的系统和方法
    • US06725343B2
    • 2004-04-20
    • US09972477
    • 2001-10-05
    • Luiz A. BarrosoKourosh GharachorlooAndreas Nowatzyk
    • Luiz A. BarrosoKourosh GharachorlooAndreas Nowatzyk
    • G06F1208
    • G06F12/0817G06F11/1064G06F11/1666G06F2212/2542
    • Each node of a multiprocessor computer system includes a main memory, a cache memory system and logic. The main memory stores memory lines of data. A directory entry for each memory line indicates whether a copy of the corresponding memory line is stored in the cache memory system in another node. The cache memory system stores copies of memory lines and cache state information indicating whether the cached copy of each memory line is an exclusive copy. The logic of each respective node is configured to respond to a transaction request for a particular memory line and its corresponding directory entry, where the respective node is the home node of the particular memory. When the cache memory system of the home node stores an exclusive copy of the particular memory line, the logic responds to the request by sending the copy of the particular memory line retrieved from the cache memory system and a predefined null directory entry value, and thus does not retrieve the memory line and its directory entry from the main memory of the home node.
    • 多处理器计算机系统的每个节点包括主存储器,高速缓冲存储器系统和逻辑。 主存储器存储数据的存储线。 每个存储器线的目录条目指示对应的存储器行的副本是否存储在另一个节点的高速缓存存储器系统中。 高速缓冲存储器系统存储指示每个存储器线的高速缓存副本是否是专用副本​​的存储器行的副本和高速缓存状态信息。 每个相应节点的逻辑被配置为响应特定存储器线及其对应的目录条目的事务请求,其中相应节点是特定存储器的归属节点。 当家庭节点的高速缓冲存储器系统存储特定存储器线的专用副本时,逻辑通过发送从高速缓冲存储器系统检索的特定存储器线的副本和预定义的空目录条目值来响应该请求,因此 不从主节点的主存储器检索内存条及其目录条目。
    • 8. 发明授权
    • Electromagnetic 3D stylus
    • 电磁3D手写笔
    • US08933913B2
    • 2015-01-13
    • US13171324
    • 2011-06-28
    • Andreas NowatzykCharles P. Thacker
    • Andreas NowatzykCharles P. Thacker
    • G06F3/045G06F3/046G06F3/0488G06F3/01G06F3/0354
    • G06F3/046G06F3/017G06F3/03545G06F3/0488G06F2203/04101
    • A stylus system and method for determining the three-dimensional position and orientation of a stylus operating within a volume located above a surface of a display device is described. In some embodiments, the stylus system includes a stylus and a display device. The stylus senses one or more magnetic fields generated from a set of transmitting coils associated with the display device and transmits sensing information over an RF channel to a receiver in the display device. The display device determines the three-dimensional position of the stylus by applying a cell-based position reconstruction technique that compares the received sensing information with predetermined magnetic field values associated with one or more predetermined regions located above the surface of the display device. The cell-based position reconstruction technique accommodates magnetic field distortions due to the presence of conductive elements within or near the display device.
    • 描述了用于确定在位于显示设备的表面上方的体积内操作的触控笔的三维位置和方位的触控笔系统和方法。 在一些实施例中,触笔系统包括触针和显示装置。 触笔感测从与显示装置相关联的一组发送线圈产生的一个或多个磁场,并且通过RF信道将感测信息发送到显示装置中的接收器。 显示装置通过应用基于单元的位置重建技术来确定触笔的三维位置,该技术将接收到的感测信息与与位于显示装置的表面上方的一个或多个预定区域相关联的预定磁场值进行比较。 基于单元的位置重建技术由于在显示装置内或附近存在导电元件而适应磁场失真。
    • 9. 发明申请
    • UNIVERSAL STYLUS DEVICE
    • 通用STYLUS设备
    • US20120206349A1
    • 2012-08-16
    • US13025165
    • 2011-02-11
    • Andreas NowatzykCharles P. Thacker
    • Andreas NowatzykCharles P. Thacker
    • G06F3/033
    • G06F3/03545G06F3/0321
    • A stylus device receives light from a display though an optical element that is adapted to increase the field curvature of an image formed on an image sensor of the stylus device. Based on the size and shape of a portion of the image that is in focus, a distance, orientation, and/or azimuth of the stylus device with respect to the display can be determined. In addition, a position corresponding to each pixel, or groups of pixels, is encoded into blue light emitted by each pixel or group of pixels of the display. Upon initialization, or after a loss of synchronization, the stylus device can determine its position with respect to the pixels by decoding the encoded position. After synchronizing its position with the display, the stylus device can determine its subsequent positions by tracking pixels of the display.
    • 触针装置通过适于增加形成在触针装置的图像传感器上的图像的场曲率的光学元件从显示器接收光。 基于对焦的图像的一部分的尺寸和形状,可以确定触针装置相对于显示器的距离,方位和/或方位角。 此外,对应于每个像素或像素组的位置被编码成由显示器的每个像素或像素组发射的蓝光。 在初始化或者在失去同步之后,触笔装置可以通过解码编码位置来确定其相对于像素的位置。 在与显示器同步其位置之后,触笔装置可以通过跟踪显示器的像素来确定其后续的位置。
    • 10. 发明申请
    • HARDWARE ACCELERATED SHORTEST PATH COMPUTATION
    • 硬件加速最短路径计算
    • US20120179674A1
    • 2012-07-12
    • US12987176
    • 2011-01-10
    • Daniel DellingAndrew V. GoldbergAndreas NowatzykRenato F. Werneck
    • Daniel DellingAndrew V. GoldbergAndreas NowatzykRenato F. Werneck
    • G06F17/30
    • G06F17/30241G01C21/3446G06F17/30436G06F17/30533
    • The non-negative single-source shortest path (NSSP) problem is solved on a graph by using a preprocessing phase and then, in a query phase, computing the distances from a given source in the graph with a linear sweep over all the vertices. Contraction hierarchies may be used in the preprocessing phase and in the query phase. Optimizations may include reordering the vertices in advance to exploit locality, performing multiple NSSP computations simultaneously, marking vertices during initialization, and using parallelism. Techniques may be performed on a graphics processing unit (GPU). This makes applications based on all-pairs shortest-paths practical for continental-sized road networks. The applications include, for example, computing graph diameter, exact arc flags, and centrality measures such as exact reaches or betweenness.
    • 通过使用预处理阶段,在图上解决非负单源最短路径(NSSP)问题,然后在查询阶段,通过所有顶点的线性扫描计算图中给定源的距离。 收缩层次可用于预处理阶段和查询阶段。 优化可以包括预先重新排列顶点以利用局部性,同时执行多个NSSP计算,在初始化期间标记顶点并使用并行性。 技术可以在图形处理单元(GPU)上执行。 这使得基于所有对的最短路径的应用对于大陆路网络是可行的。 应用包括例如计算图形直径,精确弧形标记以及诸如精确到达或中间性之类的中心度量度。