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公开(公告)号：US4646251A
公开(公告)日：1987-02-24
申请号：US783492
申请日：1985-10-03
CPC分类号： G06T17/20
摘要： A system is disclosed for subdividing parametric patches for use in a computer graphics system to develop images. The system utilizes initial data, provided as by an interactive user, to represent control points for an initial patch from which the system rapidly computes control points for subpatches using parallel processors. The disclosed system is recursive so that each level of subdivision leads to greater refinement of an initial patch. In one embodiment, the processors in the system compute multiple control points, the grouping of processors exploiting patch symmetrical properties.
摘要翻译： 公开了一种用于细分参数补丁以用于计算机图形系统以开发图像的系统。 该系统利用由交互式用户提供的初始数据来表示初始补丁的控制点，系统使用并行处理器从该快速计算子表的控制点。 所公开的系统是递归的，使得每个级别的细分导致初始补丁的更大的改进。 在一个实施例中，系统中的处理器计算多个控制点，利用补片对称属性的处理器的分组。
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公开(公告)号：US4608977A
公开(公告)日：1986-09-02
申请号：US450955
申请日：1982-12-20
申请人： Russell A. Brown
发明人： Russell A. Brown
摘要： A system utilizing computed tomography (CT) as for surgery. A CT scanner provides data representative of or slices taken through a body member. Display apparatus reveals the slices. A reference apparatus (frame) affixed to the body, operates in conjunction with the scanner and the display apparatus. The frame includes: structure for affixation to the body, holder means for guiding the therapeutic instrument, and structure for providing reference indications. The system further includes a data processing structure and control means for transforming data between frame coordinates and slice coordinates.
摘要翻译： 一种利用计算机断层扫描（CT）进行手术的系统。 CT扫描仪提供代表通过身体成员拍摄的数据。 显示装置显示切片。 固定在主体上的参考装置（框架）与扫描仪和显示装置一起操作。 该框架包括：用于固定到身体的结构，用于引导治疗仪器的保持器装置和用于提供参考指示的结构。 该系统还包括数据处理结构和用于在帧坐标和切片坐标之间变换数据的控制装置。
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公开(公告)号：US08965935B2
公开(公告)日：2015-02-24
申请号：US11937315
申请日：2007-11-08
申请人： Russell A. Brown
发明人： Russell A. Brown
CPC分类号： G06F19/22
摘要： Sequence alignment techniques are disclosed. In one embodiment, a sparse data structure is constructed that represents respective character positions of matching character sets in input sequences. This sparse data structure may take a variety of forms, including a “tree of trees.” Once constructed, each match is linked to at most one other match using a local application of a predetermined algorithm (e.g., a Smith-Waterman-type scoring algorithm). The links between matches are analyzed and a possible alignment or set of alignments is produced.
摘要翻译： 公开了序列比对技术。 在一个实施例中，构造稀疏数据结构，其表示输入序列中匹配字符集的相应字符位置。 这种稀疏数据结构可以采取各种形式，包括“树树”。一旦构建，每个匹配使用预定算法的本地应用（例如，史密斯 - 沃特曼型评分）与至多另一个匹配相关联 算法）。 分析匹配之间的链接，并产生可能的对齐或一组对齐。
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14.发明申请HAND-HELD MICROWAVE SPECTRUM ANALYZER WITH OPERATION RANGE FROM 9 KHz TO OVER 20 GHz 审中-公开手持式微波分析仪，操作范围从9 KHz到20 GHz公开(公告)号：US20120256616A1
公开(公告)日：2012-10-11
申请号：US13448203
申请日：2012-04-16
申请人： Russell A Brown , Cindy Robinson
发明人： Russell A Brown , Cindy Robinson
IPC分类号： G01R23/165
CPC分类号： G01R23/16 , H01P1/2135 , H03H7/463
摘要： A spectrum analyzer that provides from below 9 kHz to above 20 GHz operation range while remaining hand-held. The spectrum analyzer includes an integrated precision stand-alone step attenuator that does not rely on printed circuit board (PCB) mounted circuit elements within the signal path. Further, a PIN diplexing switch separates signals into different base-band and highband paths. The baseband path includes a pre-amplifier for low frequency signals, while the higher frequency bands may not necessarily include a pre-amplifier. The highband path incorporates multi-throw MMIC PIN diode switches to selectively filter different bands of input signals.
摘要翻译： 频谱分析仪，从低于9 kHz到20 GHz以上的工作范围，同时保持手持。 频谱分析仪包括一个不依赖印刷电路板（PCB）的电路元件在信号路径内的集成精密独立步进衰减器。 此外，PIN双工切换将信号分离成不同的基带和高带路径。 基带路径包括用于低频信号的前置放大器，而较高频带可能不一定包括前置放大器。 高频路径集成了多掷MMIC PIN二极管开关，以选择性地滤除不同频带的输入信号。
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15.发明授权Hand-held microwave spectrum analyzer with operation range from 9 KHz to over 20 GHz 有权手持式微波频谱分析仪，工作范围从9KHz到20GHz以上公开(公告)号：US08159208B2
公开(公告)日：2012-04-17
申请号：US12341758
申请日：2008-12-22
申请人： Russell A. Brown , Cindy Robinson
发明人： Russell A. Brown , Cindy Robinson
IPC分类号： G01R23/14
CPC分类号： G01R23/16 , H01P1/2135 , H03H7/463
摘要： A spectrum analyzer is provided that includes components to achieve from below 9 kHz to above 20 GHz operation range while remaining hand-held. Components of the spectrum analyzer include an integrated precision stand-alone step attenuator that does not rely on printed circuit board (PCB) mounted circuit elements within the signal path. Further, a PIN diplexing switch separates signals into different base-band and highband paths. The baseband path includes a pre-amplifier for low frequency signals, while the higher frequency bands may not necessarily include a pre-amplifier. The baseband path further provides improved broadband termination of its 1st mixer IF port by incorporating a new quadrature-coupled directional (QCD) filter that includes a ring resonator. An inexpensive air dielectric multi-cavity baseband filter is also used to suppress 2nd mixer IF images. The highband path incorporates multi-throw MMIC PIN diode switches to selectively filter different bands of input signals. At least three total 1st mixers are used to increase operation bandwidth. A phase locked loop providing a 1st LO to the 1st mixers is created that uses a divide-by-two frequency divider in cascade with a sampler-type frequency downconverter. The output of the 1st LO is frequency doubled and filtered to increase the frequency range of the highband signal path.
摘要翻译： 提供了一种频谱分析仪，其中包括从低于9 kHz到20 GHz以上工作范围内实现的组件，同时保持手持式。 频谱分析仪的组件包括集成精密独立步进衰减器，其不依赖于在信号路径内安装的印刷电路板（PCB）的电路元件。 此外，PIN双工切换将信号分离成不同的基带和高带路径。 基带路径包括用于低频信号的前置放大器，而较高频带可能不一定包括前置放大器。 基带通道还通过并入包括环形谐振器的新的正交耦合方向（QCD）滤波器，进一步提供其第一混频器IF端口的改进的宽带终端。 廉价的空气介质多腔基带滤波器也用于抑制第二混频器IF图像。 高频路径集成了多掷MMIC PIN二极管开关，以选择性地滤除不同频带的输入信号。 使用至少三个总共第一混频器来增加操作带宽。 创建了向第一混频器提供第一LO的锁相环，其使用与采样器型频率下变频器级联的二分频分频器。 第一LO的输出频率加倍并滤波，以增加高频信号路径的频率范围。
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公开(公告)号：US20090067619A1
公开(公告)日：2009-03-12
申请号：US12256295
申请日：2008-10-22
IPC分类号： H04L9/28
摘要： Modular multiplication of two elements X(t) and Y(t), over GF(2), where m is a field degree, may utilize field degree to determine, at least in part, the number of iterations. An extra shift operation may be employed when the number of iterations is reduced. Modular multiplication of two elements X(t) and Y(t), over GF(2), may include a shared reduction circuit utilized during multiplication and reduction. In addition, a modular multiplication of binary polynomials X(t) and Y(t), over GF(2), may utilize the Karatsuba algorithm, e.g., by recursively splitting up a multiplication into smaller operands determined according to the Karatsuba algorithm.
摘要翻译： 在GF（2）上的两个元素X（t）和Y（t）的模数乘法，其中m是场度，可以利用场度至少部分地确定迭代次数。 当迭代次数减少时，可以采用额外的移位操作。 在GF（2）上的两个元件X（t）和Y（t）的模块化乘法可以包括在乘法和还原期间使用的共享减少电路。 此外，在GF（2）上的二进制多项式X（t）和Y（t）的模乘可以利用Karatsuba算法，例如通过将乘法递归地分解成根据Karatsuba算法确定的较小操作数。
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公开(公告)号：US06633242B2
公开(公告)日：2003-10-14
申请号：US09779333
申请日：2001-02-08
申请人： Russell A. Brown
发明人： Russell A. Brown
IPC分类号： H03M746
CPC分类号： H03M7/40
摘要： The present invention provides an entropy coding scheme using an adaptable prefix code. The prefix code is a binary representation of the algorithm used to compress and decompress the data. There are prefix zeros that represent the number of significant binary digits that follow the first one. According to one embodiment, this scheme works on both positive and negative integers and encodes lower order integers with a smaller length of codeword. In another embodiment, the zero integer is encoded as a special case with the shortest codeword. In yet another embodiment, the present scheme is preferred by data sets that are clustered about zero, such as image data sets that have been transformed via a wavelet transform or a discrete cosine transform.
摘要翻译： 本发明提供一种使用适应性前缀码的熵编码方案。 前缀码是用于压缩和解压缩数据的算法的二进制表示。 有前缀零表示第一个后面的重要二进制数字的数量。 根据一个实施例，该方案对正整数和负整数起作用，并且编码具有较小码字长度的较低阶整数。 在另一个实施例中，零整数被编码为具有最短码字的特殊情况。 在另一个实施例中，本方案由聚集在零左右的数据集优先，例如经由小波变换或离散余弦变换变换的图像数据集。
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公开(公告)号：US06437795B1
公开(公告)日：2002-08-20
申请号：US09358284
申请日：1999-07-21
申请人： Russell A. Brown
发明人： Russell A. Brown
IPC分类号： G06T1530
摘要： The invention is a method and apparatus for clipping a function, such as a quadratic Bezier function defining a shading characteristic of an object being modeled. In accordance with the invention, a second or higher order function is clipped in “linear” fashion using barycentric coordinates. In accordance an embodiment of the invention, the method comprises the steps of determining a second or higher order function to be clipped, determining barycentric coordinates for at least one clipping point associated with a first order (i.e. linear) function associated with the second or higher order function and generating at least one clipping point associated with the second or higher order function using the barycentric coordinates. In one or more embodiments of the invention, the method includes the steps of using the barycentric coordinates to determine a reparameterized clipped function.
摘要翻译： 本发明是用于剪切功能的方法和装置，例如定义被建模对象的阴影特征的二次贝塞尔函数。 根据本发明，使用重心坐标以“线性”的方式限制第二或更高阶函数。 根据本发明的实施例，该方法包括以下步骤：确定要裁剪的第二或更高阶函数，确定与与第二或更高级别相关联的第一阶（即线性）函数相关联的至少一个限幅点的重心坐标 使用重心坐标产生与第二或更高阶函数相关联的至少一个限幅点。 在本发明的一个或多个实施例中，该方法包括使用重心坐标来确定重新参数化的剪辑功能的步骤。
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公开(公告)号：US4918626A
公开(公告)日：1990-04-17
申请号：US130811
申请日：1987-12-09
CPC分类号： G06T15/40 , G06T15/503
摘要： Image data is composed from primitives (polygons) to attain data for displays with the removal of hidden surfaces and smooth-appearing edges. Defined polygons are tested for priority in a determined field of vision by scan conversion to specify individual picture elements (pixels). Polygon contention for pixels is resolved by determining the edge of intersection between the planes of such polygons and testing the signs of certain values in accordance with predetermined criteria. Subpixel priority is treated for similar resolution to provide improved antialiased images.
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20.发明授权Hand-held microwave spectrum analyzer with operation range from 9 KHz to over 20 GHz 有权手持式微波频谱分析仪，工作范围从9KHz到20GHz以上公开(公告)号：US09103856B2
公开(公告)日：2015-08-11
申请号：US13448203
申请日：2012-04-16
申请人： Russell A Brown , Cindy Robinson
发明人： Russell A Brown , Cindy Robinson
CPC分类号： G01R23/16 , H01P1/2135 , H03H7/463
摘要： A spectrum analyzer that provides from below 9 kHz to above 20 GHz operation range while remaining hand-held. The spectrum analyzer includes an integrated precision stand-alone step attenuator that does not rely on printed circuit board (PCB) mounted circuit elements within the signal path. Further, a PIN diplexing switch separates signals into different base-band and highband paths. The baseband path includes a pre-amplifier for low frequency signals, while the higher frequency bands may not necessarily include a pre-amplifier. The highband path incorporates multi-throw MMIC PIN diode switches to selectively filter different bands of input signals.
摘要翻译： 频谱分析仪，从低于9 kHz到20 GHz以上的工作范围，同时保持手持。 频谱分析仪包括一个不依赖印刷电路板（PCB）的电路元件在信号路径内的集成精密独立步进衰减器。 此外，PIN双工切换将信号分离成不同的基带和高带路径。 基带路径包括用于低频信号的前置放大器，而较高频带可能不一定包括前置放大器。 高频路径集成了多掷MMIC PIN二极管开关，以选择性地滤除不同频带的输入信号。
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