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1. 发明授权

US07903537B2 Graph-based method for allocating resources in OFDMA networks 有权
标题翻译：在OFDMA网络中分配资源的基于图形的方法
公开(公告)号：US07903537B2
公开(公告)日：2011-03-08
申请号：US12112346
申请日：2008-04-30
申请人： Zhifeng Tao , Yu-Jung Chang , Jinyun Zhang
发明人： Zhifeng Tao , Yu-Jung Chang , Jinyun Zhang
IPC分类号： H04J11/00 , H04J1/00 , H04W40/00 , H04W72/00 , H04K1/10 , H04K1/02 , H03D1/04
CPC分类号： H04L5/0032 , H04L5/0037 , H04L5/0058
摘要： A method allocates radio channel resources in an orthogonal frequency-division multiple access network including a set of base stations (BS) and a set of mobile stations (MS). For each BS, a diversity set is maintained for the sets of MS. Each BS determines possible interference at the MS based on the diversity set. A graph is constructed, in which nodes represent the sets of MS, mid each edge between a pair of nodes represents channel interference between the MS represented by the pair of nodes. A weight is assigned to each edge, which reflects interference between the two MSs connected by the edge. The interference graph is partitioned into non-overlapping clusters of nodes based on a structure of the interference graph, the potential interference, so that a sum of the weights of the edges between each cluster is maximized. Based upon the graph partitioning, the channel resources are allocated to the mobile stations in order to maximize the system capacity.
摘要翻译：一种方法在包括一组基站（BS）和一组移动站（MS）的正交频分多址网络中分配无线电信道资源。对于每个BS，为MS集合保持分集集合。每个BS基于分集集确定MS处的可能干扰。构建了一个图，其中节点表示MS集合，一对节点之间的每个边中间表示由该对节点表示的MS之间的信道干扰。权重被分配给每个边缘，其反映由边缘连接的两个MS之间的干扰。基于干扰图的结构，潜在的干扰，干扰图被划分成不重叠的节点簇，使得每个簇之间的边的权重之和最大化。基于图分割，将信道资源分配给移动台，以便最大化系统容量。

2. 发明授权

US07027045B2 Modeling graphics objects with topological hints 有权
公开(公告)号：US07027045B2
公开(公告)日：2006-04-11
申请号：US09810762
申请日：2001-03-16
申请人： Ronald N. Perry , Sarah F. Frisken , Jackson W. J. Pope
发明人： Ronald N. Perry , Sarah F. Frisken , Jackson W. J. Pope
IPC分类号： G06T15/00
CPC分类号： G06T17/10
摘要： A method models a graphics object by providing a model of the graphics object and generating a first adaptively sampled distance field for the model. Next, a topological hint is constructed. A second adaptively sampled distance field is generated from the topological hint. First locations of the second adaptively sampled distance field are sampled to determine a corresponding topological feature for each location. Second locations in the first adaptively sampled distance are determined from the corresponding topological features. The first adaptively sampled distance field is then sampled at the second locations to determine a distance value for each of the second locations to model the graphics object according to the topological hint.

3. 发明授权

US07008795B2 Multi-way LED-based chemochromic sensor 失效
标题翻译：基于LED的化学荧光传感器
公开(公告)号：US07008795B2
公开(公告)日：2006-03-07
申请号：US10251251
申请日：2002-09-20
申请人： William S. Yerazunis , Dermot Diamond , Paul H. Dietz
发明人： William S. Yerazunis , Dermot Diamond , Paul H. Dietz
IPC分类号： G01N21/78
CPC分类号： G01N21/78
摘要： A chemochromic sensor includes multiple bi-directional LEDs, each optically aligned with one or more test areas. Each LED is used as both a light emitter when driven in forward bias, and as a light detector when driven in reverse bias. By alternating the bias on the LEDs, multi-way light measurements of the test area can be obtained.
摘要翻译：化学传感器包括多个双向LED，每个LED与一个或多个测试区域光学对准。每个LED用作正向偏压驱动时的发光体，以及作为反向偏压驱动时的光检测器。通过交替LED上的偏置，可以获得测试区域的多路光测量。

4. 发明授权

US07006683B2 Modeling shape, motion, and flexion of non-rigid 3D objects in a sequence of images 失效
公开(公告)号：US07006683B2
公开(公告)日：2006-02-28
申请号：US09791117
申请日：2001-02-22
申请人： Matthew Brand
发明人： Matthew Brand
IPC分类号： G06K9/00
CPC分类号： G06T7/269 , G06T7/579
摘要： A method models a non-rigid three-dimensional object directly from a sequence of images. A shape of the object is represented as a matrix of 3D points, and a basis of possible deformations of the object is represented as a matrix of displacements of the 3D points. The matrices of 3D points and displacements forming a model of the object. Evidence for an optical flow is determined from image intensities in a local region near each 3D point. The evidence is factored into 3D rotation, translation, and deformation coefficients of the model to track the object in the video.

5. 发明授权

US06954650B2 Directivity characteristics of mobile terminals 失效
标题翻译：移动终端的方向性特征
公开(公告)号：US06954650B2
公开(公告)日：2005-10-11
申请号：US10189249
申请日：2002-07-05
申请人： Zafer Sahinoglu , Anthony Vetro
发明人： Zafer Sahinoglu , Anthony Vetro
IPC分类号： H04W4/02 , H04W8/22 , H04W24/00 , H04Q7/20
CPC分类号： H04W4/02 , H04W8/22 , H04W24/00
摘要： A method determines mobility characteristics of a mobile terminal by measuring a first and second angular direction of travel of the mobile terminal at a first and second instant. The first angular direction is subtracted form the second angular direction to determine the directivity of the mobile terminal during an interval of time between the first instant and the second instant. The directivity, in terms of a mean, variance, or histogram can be used to classify the mobile terminal, and location-aware services can be adapted and delivered according to the classification.
摘要翻译：一种方法通过在第一和第二时刻测量移动终端的第一和第二角度行进方向来确定移动终端的移动性特性。从第二角度方向减去第一角度方向，以确定在第一时刻和第二时刻之间的时间间隔内的移动终端的方向性。根据平均值，方差或直方图的方向性可以用于对移动终端进行分类，并且可以根据分类对位置感知服务进行调整和传递。

6. 发明授权

US06943789B2 Conversion of adaptively sampled distance fields to triangles 有权
标题翻译：自适应采样距离场转换为三角形
公开(公告)号：US06943789B2
公开(公告)日：2005-09-13
申请号：US09810839
申请日：2001-03-16
申请人： Ronald N. Perry , Sarah F. Frisken
发明人： Ronald N. Perry , Sarah F. Frisken
IPC分类号： G06F17/50 , G06T17/20 , G06T17/40 , G06T17/00 , G09G5/00
CPC分类号： G06T17/00 , G06T17/20
摘要： A method for converts an adaptively sampled distance field of a graphics model to a triangle model, The adaptively sampled distance field includes surface cells storing distance values that have corresponding gradients. A vertex is assigned to a center location of each surface cell. The vertices of neighboring surface cells are connected to form triangles while satisfying a predetermined constraint. Then, each vertex is moved, in a single step, to a new location according to the distance value and corresponding gradient of the vertex to substantially conform the triangles to a surface of the model.
摘要翻译：一种用于将图形模型的自适应采样距离场转换为三角形模型的方法。自适应采样距离场包括存储具有相应梯度的距离值的表面单元。顶点被分配到每个表面单元的中心位置。相邻表面单元的顶点被连接以形成三角形，同时满足预定约束。然后，根据距离值和顶点的对应梯度，将每个顶点在单个步骤中移动到新位置，以将三角形基本上与模型的表面一致。

7. 发明授权

US06930681B2 System and method for registering multiple images with three-dimensional objects 失效
标题翻译：用三维物体登记多张图像的系统和方法
公开(公告)号：US06930681B2
公开(公告)日：2005-08-16
申请号：US09930430
申请日：2001-08-14
申请人： Ramesh Raskar , Gregory F. Welch , Kok-Lim Low
发明人： Ramesh Raskar , Gregory F. Welch , Kok-Lim Low
IPC分类号： G06T15/00
CPC分类号： G06T15/005
摘要： A computer implemented method registers an image with a 3D physical object by first acquiring a 3D graphics model of an object. Multiple 3D calibration points a surface of the object and corresponding 3D model calibration points in the 3D graphics model are identified. The object is illuminated with a calibration image using a projector at a fixed location. The calibration image is aligned with each of the 3D calibration points on the surface of the 3D physical object to identify corresponding 2D pixels in the calibration image, and then a transformation between the 2D calibration pixels and the corresponding 3D model calibration points is determined to register the projector with the 3D physical object.
摘要翻译：计算机实现的方法通过首先获取对象的3D图形模型来注册具有3D物体的图像。识别3D图形模型中多个3D校准点对象的表面和相应的3D模型校准点。使用投影仪在固定位置的校准图像照亮物体。校准图像与3D物理物体表面上的每个3D校准点对准，以识别校准图像中的相应2D像素，然后确定2D校准像素与相应的3D模型校准点之间的变换以进行注册该投影机具有3D物体。

8. 发明授权

US06917702B2 Calibration of multiple cameras for a turntable-based 3D scanner 失效
标题翻译：用于基于转盘的3D扫描仪的多个相机的校准
公开(公告)号：US06917702B2
公开(公告)日：2005-07-12
申请号：US10128827
申请日：2002-04-24
申请人： Paul Beardsley
发明人： Paul Beardsley
IPC分类号： G01B11/00 , G06T1/00 , G06T7/00 , H04N13/02 , G06K9/00
CPC分类号： G06T7/85
摘要： In a method and system for calibrating a multiple cameras, a calibration object is placed on a turntable while a set of images is acquired with each camera while rotating the turntable. Vertices of a calibration pattern are located in each set of images, and intrinsic parameters for each camera are determined from the vertices. An orientation of a rotation axis of the turntable relative to a position of each camera is estimated from the intrinsic parameters of each camera. A dependency of each orientation on a global geometry of the calibration pattern is minimized. Then, one camera is selected as a fixed camera, all other cameras are designated as floating cameras. A translation vector between the fixed camera and each floating camera is determined, and the translation vectors are used to place the cameras in a common coordinate frame according to the translating vectors.
摘要翻译：在用于校准多个摄像机的方法和系统中，校准对象被放置在转盘上，同时在旋转转盘的同时在每个摄像机中获取一组图像。校准图案的顶点位于每组图像中，并且从顶点确定每个相机的固有参数。根据每个摄像机的固有参数估计转盘相对于每个照相机的位置的旋转轴的取向。每个取向对校准图案的全局几何的依赖性最小化。然后，选择一个摄像机作为固定摄像机，所有其他摄像机都被指定为浮动摄像机。确定固定摄像机和每个浮动摄像机之间的平移向量，并且使用平移矢量根据平移向量将摄像机放置在公共坐标系中。

9. 发明授权

US06891535B2 System and method for modeling graphics objects 失效
标题翻译：用于建模图形对象的系统和方法
公开(公告)号：US06891535B2
公开(公告)日：2005-05-10
申请号：US09811010
申请日：2001-03-16
申请人： Ronald N. Perry , Sarah F. Frisken , Jackson W. J. Pope
发明人： Ronald N. Perry , Sarah F. Frisken , Jackson W. J. Pope
IPC分类号： G06T17/10 , G06T17/00
CPC分类号： G06T17/10
摘要： A system models a graphics object by first providing a model of the object, generation parameters specifying a fixed level-of-detail, and conversion parameters specifying variable levels-of-detail. An adaptively sampled distance field having the fixed level-of-detail is generated from the model, and the adaptively sampled distance field is converted from the fixed level-of-detail to the variable levels-of-detail while concurrently generating rendering primitives.
摘要翻译：系统通过首先提供对象的模型，指定固定级别的生成参数以及指定可变级别细节的转换参数来对图形对象建模。从模型生成具有固定的细节级别的自适应采样的距离场，并且将自适应采样的距离场从固定的细节级别转换为可变的细节级别，同时生成渲染原语。

10. 发明授权

US07924766B2 Hybrid multiple access method and system in wireless networks 有权
标题翻译：无线网络中的混合多址接入方式和系统
公开(公告)号：US07924766B2
公开(公告)日：2011-04-12
申请号：US11845864
申请日：2007-08-28
申请人： Zafer Sahinoglu , Ghulam M. Bhatti , Jinyun Zhang
发明人： Zafer Sahinoglu , Ghulam M. Bhatti , Jinyun Zhang
IPC分类号： H04B7/212
CPC分类号： H04W74/02
摘要： A method and system access a channel in a wireless network of nodes. A coordinator transmits periodically a beacon, in which time between two consecutive beacons constitute a beacon interval. The coordinator and other nodes transceive a superframe during the beacon interval, in which the superframe begins with an active interval, which is immediately followed by an inactive interval, and in which the active interval begins with a contention free period, which is immediately followed by a contention access period, which is immediately followed by the inactive interval.
摘要翻译：方法和系统访问节点无线网络中的信道。协调器周期性地发送信标，其中两个连续信标之间的时间构成信标间隔。协调器和其他节点在信标间隔期间收发超帧，其中超帧以活动间隔开始，紧接着是非活动间隔，并且其中活动间隔以无竞争周期开始，紧随其后的是争用访问期间，紧随其后的是非活动间隔。

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