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公开(公告)号：US20050031061A1
公开(公告)日：2005-02-10
申请号：US10940137
申请日：2004-09-14
申请人： Eric Ojard , Amit Bagchi
发明人： Eric Ojard , Amit Bagchi
CPC分类号： H04L25/03006 , H04B1/1036 , H04B1/123 , H04L1/0001
摘要： A filter settings generation operation includes sampling colored noise present at the input of a receiver to produce a sampled signal. The sampled signal is spectrally characterized across a frequency band of interest to produce a spectral characterization of the sampled signal. This spectral characterization may not include a signal of interest. The spectral characterization is then modified to produce a modified spectral characterization. Filter settings are then generated based upon the modified spectral characterization. Finally, the input present at the receiver is filtered using the filter settings when the signal of interest is present to whiten colored noise that is present with the signal of interest. In modifying the spectral characterization, pluralities of spectral components of the spectral characterization are independently modified to produce the modified spectral characterization. Modifications to the spectral characterization may be performed in the frequency domain and/or the time domain. Particular modifications include amplifying spectral components, weighting spectral components based upon prior spectral components, and averaging spectral components with prior spectral components.
摘要翻译： 滤波器设置生成操作包括在接收器的输入处存在的彩色噪声采样以产生采样信号。 采样信号在感兴趣的频带上进行频谱表征，以产生采样信号的频谱表征。 该光谱特性可能不包括感兴趣的信号。 然后修改光谱表征以产生修改的光谱表征。 然后基于修改的光谱表征生成滤波器设置。 最后，当感兴趣的信号存在时，使用滤波器设置对存在于接收机处的输入进行滤波，以增加与感兴趣信号一起出现的彩色噪声。 在修改光谱表征时，光谱表征的多个光谱分量被独立地修改以产生经修改的光谱表征。 频谱表征的修改可以在频域和/或时域中执行。 具体的修改包括放大频谱分量，基于现有频谱分量对频谱分量进行加权，以及对具有先前频谱分量的频谱分量进行平均。
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12.发明申请Modular System for Evaluating Helmet and Suspension Materials for Protection of Neural Cells from Simulated Trauma 有权用于评估头盔和悬架材料的模块化系统，用于保护神经细胞免受模拟创伤公开(公告)号：US20160076967A1
公开(公告)日：2016-03-17
申请号：US14486622
申请日：2014-09-15
CPC分类号： G01M7/08 , G01L5/0052 , G01N3/303
摘要： A modular system is designed to interface cell cultures to a shock tube (simulated blast) and/or drop tower (simulated blunt impact) for testing of helmet and helmet pad materials for mitigating cell injury. It includes a set of layers including helmet material, optionally helmet pad, simulated skin, simulated skull, and simulated bulk brain tissue.
摘要翻译： 模块化系统设计用于将细胞培养物与用于测试头盔和头盔垫材料的休克管（模拟爆炸）和/或滴塔（模拟钝发冲击）相接触，以减轻细胞损伤。 它包括一组层，包括头盔材料，可选的头盔垫，模拟皮肤，模拟颅骨和模拟的大脑组织。
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公开(公告)号：US07917114B2
公开(公告)日：2011-03-29
申请号：US11392868
申请日：2006-03-30
申请人： Amit Bagchi , Rohit Gaikwad
发明人： Amit Bagchi , Rohit Gaikwad
CPC分类号： H03F1/26 , H03D3/008 , H03F1/34 , H03F3/24 , H03F3/45475 , H03F3/45968 , H03F2200/294 , H03F2200/372 , H04B1/30
摘要： The present invention relates to a DC offset canceling circuit. In one aspect of the invention, a DC offset canceling circuit with independently configurable gain and roll-off frequency is provided. In one embodiment of the present invention, the DC offset canceling circuit is used in the receive path of a down-conversion wireless receiver. In another aspect of the invention, a method for independently varying the gain and the roll-off frequency of the DC offset canceling circuit is provided. In one embodiment, the method is used to independently operate a gain control scheme and a DC offset cancellation strategy in a DC canceling circuit.
摘要翻译： 本发明涉及一种DC偏移抵消电路。 在本发明的一个方面，提供了具有独立可配置的增益和滚降频率的DC偏移消除电路。 在本发明的一个实施例中，DC偏移消除电路用于下变频无线接收机的接收路径。 在本发明的另一方面，提供一种用于独立地改变DC偏移消除电路的增益和滚降频率的方法。 在一个实施例中，该方法用于独立地操作DC消除电路中的增益控制方案和DC偏移消除策略。
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公开(公告)号：US20070058623A1
公开(公告)日：2007-03-15
申请号：US11301522
申请日：2005-12-13
申请人： Rajendra Moorti , Rohit Gaikwad , Amit Bagchi
发明人： Rajendra Moorti , Rohit Gaikwad , Amit Bagchi
IPC分类号： H04L12/56
摘要： Frame processing for a wireless communication system. The frame processing includes detecting reception of a frame based on a portion of a preamble of a frame, wherein the frame includes a preamble and a data payload. With detecting the reception of a frame, determining a frame type of a plurality of frame types from at least the portion of the preamble. Processing a remaining portion of the preamble in accordance with the frame type to determine payload processing parameters, and processing the data payload based on the payload processing parameters.
摘要翻译： 无线通信系统的帧处理。 帧处理包括基于帧的前导码的一部分来检测帧的接收，其中该帧包括前同步码和数据有效载荷。 通过检测帧的接收，从前导码的至少一部分确定多种帧类型的帧类型。 根据帧类型处理前导码的剩余部分以确定有效载荷处理参数，以及基于有效载荷处理参数来处理数据有效载荷。
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公开(公告)号：US20060193410A1
公开(公告)日：2006-08-31
申请号：US11132777
申请日：2005-05-19
申请人： R. Moorti , Rohit Gaikwad , Amit Bagchi
发明人： R. Moorti , Rohit Gaikwad , Amit Bagchi
摘要： The present invention provides a method for automated gain control associated with the receipt of multiple input multiple output (MIMO) radio frequency (RF) packet communications. This involves receiving multiple MIMO RF packet communications with multiple receiver pathways, wherein the RF packet communications each comprise a preamble and data. A gain is applied to the RF packet communication with a programmable gain amplifier operable to adjust the gain based on received control signals from the baseband processing module. The RF packet communication(s) are down converted to produce a baseband packet communication. This communication in then converted from an analog signal to a digital signal. The digital signal is sampled for a valid preamble. The results of the sampled digital signal are used to produce a control signals to the programmable gain amplifier based on the sampling of the digital signal and upstream analog signals associated with the RF packet communication.
摘要翻译： 本发明提供了一种用于与多输入多输出（MIMO）射频（RF）分组通信的接收相关联的自动增益控制的方法。 这包括接收与多个接收机路径的多个MIMO RF分组通信，其中RF分组通信各自包括前导码和数据。 增益应用于与可编程增益放大器的RF分组通信，可编程增益放大器可用于基于从基带处理模块接收的控制信号来调整增益。 RF分组通信被下变频以产生基带分组通信。 该通信然后从模拟信号转换成数字信号。 为有效的前导码采样数字信号。 采样数字信号的结果用于根据与RF分组通信相关联的数字信号和上行模拟信号的采样，向可编程增益放大器产生控制信号。
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16.发明授权Apparatus and method for layered modeling of intended objects represented in STL format and adaptive slicing thereof 失效用于以STL格式表示的预期对象的分层建模和其自适应切片的装置和方法
公开(公告)号：US5596504A
公开(公告)日：1997-01-21
申请号：US419711
申请日：1995-04-10
申请人： Kamesh Tata , Amit Bagchi , Nadim M. Aziz
发明人： Kamesh Tata , Amit Bagchi , Nadim M. Aziz
CPC分类号： G06T17/00
摘要： A device for automating operation of a stereolithography apparatus uses an STL file as an input and includes a programmable computer, a facet processor that sorts the facets of the STL file according to a predetermined slice axis. The facet processor also groups the sorted facets according to those having common minimum vertex values with respect to the slice axis. The facet processor also subgroups the grouped facet file according to facets having common maximum vertex values with respect to the slice axis. A key characteristic identifier identifies key characteristics of the STL file. A thickness calculator determines the thickness of each layer of the model according to a geometrical error of preselected magnitude. A slicer calculates the intersection of each sliced plane by the calculated thickness. A directional ordering device insures uniformity with the direction of each other contour that defines the intersection. A model generator uses the layer thickness and intersection information to generate a portion of a model. An interface device controls the operation of the machine based on the model that is generated.
摘要翻译： 用于自动化立体光刻设备的操作的设备使用STL文件作为输入，并且包括可编程计算机，根据预定切片轴对STL文件的面分类的小平面处理器。 小平面处理器还根据具有相对于切片轴的共同最小顶点值的那些分组排序面。 小平面处理器还根据具有相对于切片轴的共同最大顶点值的小平面对分组的小平面文件进行分组。 关键特征标识符识别STL文件的关键特性。 厚度计算器根据预选大小的几何误差来确定模型的各层的厚度。 切片机根据计算的厚度计算每个切片平面的交点。 方向订购装置确保了与定义交点的每个其他轮廓的方向的均匀性。 模型生成器使用层厚度和交点信息来生成模型的一部分。 接口设备基于生成的模型来控制机器的操作。
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17.发明授权Modular system for evaluating helmet and suspension materials for protection of neural cells from simulated trauma 有权用于评估头盔和悬架材料的模块化系统，用于保护神经细胞免受模拟创伤公开(公告)号：US09488547B2
公开(公告)日：2016-11-08
申请号：US14486622
申请日：2014-09-15
CPC分类号： G01M7/08 , G01L5/0052 , G01N3/303
摘要： A modular system is designed to interface cell cultures to a shock tube (simulated blast) and/or drop tower (simulated blunt impact) for testing of helmet and helmet pad materials for mitigating cell injury. It includes a set of layers including helmet material, optionally helmet pad, simulated skin, simulated skull, and simulated bulk brain tissue.
摘要翻译： 模块化系统设计用于将细胞培养物与用于测试头盔和头盔垫材料的休克管（模拟爆炸）和/或滴塔（模拟钝发冲击）相接触，以减轻细胞损伤。 它包括一组层，包括头盔材料，可选的头盔垫，模拟皮肤，模拟颅骨和模拟的大脑组织。
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18.发明申请Cell Pack for the Growth and Manipulation of Three Dimensional Cell Cultures 审中-公开用于三维细胞培养物的生长和操作的细胞包公开(公告)号：US20140273062A1
公开(公告)日：2014-09-18
申请号：US14197724
申请日：2014-03-05
IPC分类号： C12M1/12
摘要： Described herein is a sealed cell pack with a permeable membrane for growth and manipulation of three-dimensional cell cultures. This allows a cell culture to be removed from the laboratory and subjected to real world insults before being returned to culture conditions for continued growth and study. One application is for use in the study of the direct effects of blast waves on neuronal cells and methods for mitigating this response.
摘要翻译： 本文描述的是具有用于生长和操纵三维细胞培养物的可渗透膜的密封电池组。 这样可以将细胞培养物从实验室中除去，并在被返回到培养条件下继续进行真实世界的侮辱以继续生长和研究。 一种应用用于研究爆炸波对神经元细胞的直接作用以及减轻该反应的方法。
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公开(公告)号：US20060223472A1
公开(公告)日：2006-10-05
申请号：US11392868
申请日：2006-03-30
申请人： Amit Bagchi , Rohit Gaikwad
发明人： Amit Bagchi , Rohit Gaikwad
CPC分类号： H03F1/26 , H03D3/008 , H03F1/34 , H03F3/24 , H03F3/45475 , H03F3/45968 , H03F2200/294 , H03F2200/372 , H04B1/30
摘要： The present invention relates to a DC offset canceling circuit. In one aspect of the invention, a DC offset canceling circuit with independently configurable gain and roll-off frequency is provided. In one embodiment of the present invention, the DC offset canceling circuit is used in the receive path of a down-conversion wireless receiver. In another aspect of the invention, a method for independently varying the gain and the roll-off frequency of the DC offset canceling circuit is provided. In one embodiment, the method is used to independently operate a gain control scheme and a DC offset cancellation strategy in a DC canceling circuit.
摘要翻译： 本发明涉及一种DC偏移抵消电路。 在本发明的一个方面，提供了具有独立可配置的增益和滚降频率的DC偏移消除电路。 在本发明的一个实施例中，DC偏移消除电路用于下变频无线接收机的接收路径。 在本发明的另一方面，提供一种用于独立地改变DC偏移消除电路的增益和滚降频率的方法。 在一个实施例中，该方法用于独立地操作DC消除电路中的增益控制方案和DC偏移消除策略。
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20.发明授权Adaptive lamina generation for shape dependent process control and/or object decomposition 失效用于形状相关过程控制和/或对象分解的自适应层片生成
公开(公告)号：US5432704A
公开(公告)日：1995-07-11
申请号：US156321
申请日：1993-11-23
申请人： Franck A. Vouzelaud , Amit Bagchi
发明人： Franck A. Vouzelaud , Amit Bagchi
IPC分类号： B29C67/00 , G05B19/4099 , G06F17/00 , G06T1/00
CPC分类号： G05B19/4099 , B29C67/0074 , G05B2219/49008 , G05B2219/49011 , G05B2219/50094
摘要： A method of automatically operating a machine with respect to an object having a desired profile, wherein the machine's operation is controlled based on a model of the object's profile. The method includes generating at least a portion of the model in the form of a plurality of successive layers wherein the cross-section of each layer is defined by the intersection of a pair of parallel planes and a model profile connecting the parallel planes. Each layer's thickness is selected such that the geometrical error between the object's desired profile and the model profile of the layer remains no greater than a preselected geometrical error. More than one layer thickness is selected during the step of generating this portion of the object. The machine can be operated in successive steps with each step based on a separate one of the layers.
摘要翻译： 一种相对于具有所需轮廓的物体自动操作机器的方法，其中基于对象轮廓的模型来控制机器的操作。 该方法包括以多个连续层的形式产生模型的至少一部分，其中每层的横截面由一对平行平面和连接平行平面的模型轮廓的交点限定。 选择每层的厚度，使得物体的所需轮廓与层的模型轮廓之间的几何误差保持不大于预选的几何误差。 在生成物体的该部分的步骤期间选择多于一层的厚度。 机器可以在连续的步骤中操作，每个步骤基于单独的一个层。
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