公开(公告)号：US20050073520A1

公开(公告)日：2005-04-07

申请号：US10996874

申请日：2004-11-23

申请人： Matthew Papakipos ,  Carroll Gossett ,  Christian Pappas ,  Henry Moreton ,  Robert Williamson

发明人： Matthew Papakipos ,  Carroll Gossett ,  Christian Pappas ,  Henry Moreton ,  Robert Williamson

IPC分类号： G06T17/30 ,  G06T17/00

CPC分类号： G06T17/30

摘要： The present invention comprises a computer implemented process and system for rendering curves or surfaces as 3D graphics on a display. The system of the present invention includes a computer system having a processor, a bus, and a 3D graphics rendering pipeline. The curves or surfaces are modeled by non-uniform rational B-splines (NURBS). The process of the present invention functions by receiving a NURBS model for rendering from a software program running on the host processor. The NURBS model defines a curve or surface. The process of the present invention efficiently converts the NURBS model to a Bezier model using the hardware of the graphics rendering pipeline. The Bezier model describes the same curve or surface. The process of the present invention subsequently generates a plurality of points on the curve or surface using the Bezier model and the graphics rendering pipeline. The points are then used by the graphics rendering pipeline to render the curve or surface defined by the Bezier model. Alternatively, a NURBS model is directly evaluated into a plurality of points on a curve or surface, and in turn, rendered into the curve or surface. This direct rendering of the NURBS model is implemented using the graphics rendering pipeline.

公开(公告)号：US20050047482A1

公开(公告)日：2005-03-03

申请号：US10943677

申请日：2004-09-16

申请人： Carroll Gossett ,  Michial Gunter

发明人： Carroll Gossett ,  Michial Gunter

IPC分类号： H04B1/707 ,  H04J11/00 ,  H04J13/00

CPC分类号： H04B1/707 ,  H04J13/004

摘要： A method of improving bandwidth of wireless CDMA systems by shuffling the rows of a Hadamard function in a pseudo-random manner. A Hadamard function is used to provide orthogonality between users. The orthogonal waveforms are used to prevent interference from different users sharing the same cell as well as multiple channels from the same user. The rows of the Hadamard function are shuffled in a pseudo-random manner. This effectively maximally spreads the spectral density of the transmitted signal out across the available spectrum. These codes are pre-computed and stored in lookup tables of mobile wireless devices. The data signals are modulated by one set of codes. Thereby, one data bit can be transmitted per chip.

摘要翻译： 一种通过以伪随机方式混合Hadamard函数的行来改善无线C​​DMA系统的带宽的方法。 Hadamard函数用于提供用户之间的正交性。 正交波形用于防止来自同一用户的共享同一小区以及多个信道的不同用户的干扰。 Hadamard函数的行以伪随机方式进行混洗。 这有效地将传输信号的频谱密度最大限度地扩展到可用频谱上。 这些代码被预先计算并存储在移动无线设备的查找表中。 数据信号由一组代码调制。 从而，每个芯片可以传输一个数据位。

公开(公告)号：US20080107159A1

公开(公告)日：2008-05-08

申请号：US11972321

申请日：2008-01-10

申请人： Carroll Gossett ,  Michial Gunter

发明人： Carroll Gossett ,  Michial Gunter

IPC分类号： H04B1/707

CPC分类号： H04B1/707 ,  H04L25/03038 ,  H04L2025/03458 ,  H04L2025/03471

摘要： An autocorrelation filter for use with a spread spectrum receiver. The autocorrelation filter can be used as a prefilter stage to reduce phase distortion present in a spread spectrum signal. The autocorrelation filter can be used to process the output from a lattice filter. The lattice filter is configured to remove magnitude distortion from the spread spectrum signal. The autocorrelation filter performs a series of correlations on the output of the lattice filter. The results of these correlations are integrated over a period of time to generate a running impulse response for characterizing and removing the phase distortion in the spread spectrum signal.

摘要翻译： 一种与扩频接收机一起使用的自相关滤波器。 自相关滤波器可以用作预滤波器级，以减少扩频信号中存在的相位失真。 自相关滤波器可用于处理格子滤波器的输出。 格子滤波器被配置为从扩频信号中去除幅度失真。 自相关滤波器对晶格滤波器的输出执行一系列相关。 这些相关性的结果在一段时间内被积分，以产生用于表征和去除扩频信号中的相位失真的运行脉冲响应。

公开(公告)号：US20060034373A1

公开(公告)日：2006-02-16

申请号：US11213334

申请日：2005-08-26

申请人： Michial Gunter ,  David Kita ,  Oliver Shih ,  Carroll Gossett

发明人： Michial Gunter ,  David Kita ,  Oliver Shih ,  Carroll Gossett

IPC分类号： H04N7/12 ,  H04N11/04 ,  H04B1/66 ,  H04N11/02

CPC分类号： H04N19/543

摘要： A method and apparatus for estimating the motion of an image region (the “center” region) from a source video frame to a target video frame. The motion estimation is locally constrained in that the estimated motion of the “center region” is affected by the estimated motion of neighboring regions. Advantageously, this may reduce common motion matching problems such as false and ambiguous matches. In one embodiment, the locally-constrained motion estimation may be implemented by biasing an error map of the center region using error maps of the neighboring regions.