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1.发明授权公开(公告)号：US07266488B1
公开(公告)日：2007-09-04
申请号：US10379977
申请日：2003-03-05
CPC分类号： G06F17/5022
摘要： A technique for performing signal integrity analysis of a system includes providing a stimulus pattern and a model of the system and performing analog simulation of the model utilizing the stimulus pattern. The stimulus pattern includes sequences of signal transitions with associated transition times and the sequences of signal transitions conform to a bus protocol and the associated transition times are according to characteristics of the system. The stimulus pattern is generated by initializing each of the sequences of signal transitions to an initial signal value and the associated transition times to an initial time, generating subsequent signal values and subsequent transition times by applying protocol rules and calculating timing adjustments for each of a list of transactions; the subsequent signal values and subsequent transition times to be added to the sequences of signal transitions.
摘要翻译： 用于执行系统的信号完整性分析的技术包括提供系统的刺激模式和模型，并且利用刺激模式来执行模型的模拟仿真。 激励模式包括具有相关联的转换时间的信号转换序列，并且信号转换序列符合总线协议，并且相关联的转换时间根据系统的特性。 通过将信号转换的每个序列初始化为初始信号值和相关联的转换时间到初始时间来产生刺激模式，通过应用协议规则并计算每个列表的时序调整来产生后续信号值和随后的转换时间 的交易; 随后的信号值和随后的转换时间被添加到信号转换序列。
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2.发明授权Method and apparatus for impedance matching in systems configured for multiple processors 失效用于多处理器配置的系统中的阻抗匹配方法和装置公开(公告)号：US06998870B1
公开(公告)日：2006-02-14
申请号：US10209484
申请日：2002-07-31
IPC分类号： H03K17/16
CPC分类号： H04L25/0278 , H05K1/0237 , H05K1/141 , H05K3/222 , H05K2201/09727 , H05K2201/10325 , H05K2201/10734
摘要： A method and apparatus for impedance matching in systems configured for multiple processors is disclosed. In one embodiment, a computer system includes a first processor socket and a second processor socket, each configured to accommodate a processor. The processor sockets may be electrically coupled to each other. A first I/O node may be electrically coupled to the first processor socket and a second I/O node may be electrically coupled to the second processor socket. A processor may be mounted in the first processor socket, while an impedance matching circuit may be mounted in the second processor socket. The impedance matching circuit may electrically couple the processor mounted in the first processor socket to the second I/O node, thereby allowing the computer system to utilize the I/O capability provided by the second I/O node even when a second processor is not present in the system.
摘要翻译： 公开了一种用于多个处理器配置的系统中的阻抗匹配的方法和装置。 在一个实施例中，计算机系统包括第一处理器插座和第二处理器插座，每个被配置为容纳处理器。 处理器插座可以彼此电耦合。 第一I / O节点可以电耦合到第一处理器插槽，并且第二I / O节点可以电耦合到第二处理器插槽。 处理器可以安装在第一处理器插槽中，而阻抗匹配电路可以安装在第二处理器插槽中。 阻抗匹配电路可以将安装在第一处理器插槽中的处理器电耦合到第二I / O节点，从而允许计算机系统利用第二I / O节点提供的I / O能力，即使第二处理器不是 存在于系统中。
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公开(公告)号：US06392782B1
公开(公告)日：2002-05-21
申请号：US09606225
申请日：2000-06-27
申请人： Mark J. Bloemer , Michael Scalora , Jonathan P. Dowling , Charles M. Bowden , William C. Pittman
发明人： Mark J. Bloemer , Michael Scalora , Jonathan P. Dowling , Charles M. Bowden , William C. Pittman
IPC分类号： G02F103
CPC分类号： G01J3/36 , G01J3/02 , G01J3/0256 , G01J5/10 , G01J2003/1213 , G02B2006/1213
摘要： The photonic band gap (PBG) dual-spectrum sensor utilizes the frequency-selective properties of a photonic band gap device constructed in accordance with this invention to separate incident electromagnetic wave into two frequency bands. The parameters of the PBG device are chosen so that one frequency band is transmitted through the device with low attenuation while the second band is reflected with low attenuation from the front face of the device. This separation of the two frequency bands allows separate detection processes to be performed to recover the information content of the two signals before the information is fused in subsequent signal processing operation. Such a PBG device would be useful in missile seekers that seek to distinguish a target object from its background.
摘要翻译： 光子带隙（PBG）双光谱传感器利用根据本发明构造的光子带隙装置的频率选择性质将入射电磁波分离成两个频带。 选择PBG器件的参数，使得一个频带通过低衰减的器件传输，而第二个频带以来自器件前面的低衰减反射。 两个频带的这种分离允许执行单独的检测处理以在信息在随后的信号处理操作中融合之前恢复两个信号的信息内容。 这种PBG装置在寻求将目标物体与其背景区分开的导弹搜索者中将是有用的。
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公开(公告)号：US5559825A
公开(公告)日：1996-09-24
申请号：US431166
申请日：1995-04-25
CPC分类号： G02F1/3523 , B82Y20/00 , G02B6/1225 , H01S3/0064 , H01S5/105 , Y10S372/703
摘要： A new optical diode is disclosed that permits unidirectional transmission of light, the direction of transmission depending on the direction of incidence. The diode comprises a stack of alternating layers of a low-index material and a high-index material. The layers are arranged within the stack such that there is spatial anisotropy of optical pathlengths in the stack and at least the low-index layers or the high-index layers have an optical nonlinearity, either inherently or by doping. At sufficiently high incident intensifies and appropriate wavelengths, such a diode exhibits partial transmission of input light incident from one direction while reflecting almost totally input light incident from the opposite direction.
摘要翻译： 公开了一种新的光二极管，其允许光的单向传输，根据入射方向的透射方向。 二极管包括低折射率材料和高折射率材料的交替层叠。 这些层被布置在堆叠内，使得在堆叠中存在光路长度的空间各向异性，并且至少低折射率层或高折射率层具有固有地或通过掺杂的光学非线性。 在足够高的入射强度和适当的波长下，这种二极管表现出从一个方向入射的输入光的部分透射，同时反射从相反方向入射的几乎完全输入的光。
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5.发明申请公开(公告)号：US20120155529A1
公开(公告)日：2012-06-21
申请号：US12973242
申请日：2010-12-20
申请人： Ramon Mangaser , Shefali Walia , Edoardo Prete , Jonathan P. Dowling , Gerald R. Talbot , Sharad N. Vittal
发明人： Ramon Mangaser , Shefali Walia , Edoardo Prete , Jonathan P. Dowling , Gerald R. Talbot , Sharad N. Vittal
IPC分类号： H03K5/159
CPC分类号： H04L25/03878 , H04L25/03057
摘要： A decision feedback equalization (DFE) receiver and method are provided. The DFE receiver is configured to sample data bits from a data bus. The DFE receiver includes a data sampler configured to sample a current data bit from the data bus using one of a first, second and third voltage reference. The DFE receiver also includes multiplexing logic configured to select one of the first, second and third voltage references based on a prior data bus level. The wherein the first voltage reference is selected if the prior data bus level was a logic zero. The second voltage reference is selected if the prior data bus level was a logic one. The third voltage reference is selected if the prior data bus level was tri-state.
摘要翻译： 提供了一种判决反馈均衡（DFE）接收机和方法。 DFE接收器配置为从数据总线采样数据位。 DFE接收器包括数据采样器，其被配置为使用第一，第二和第三参考电压之一从数据总线采样当前数据位。 DFE接收机还包括被配置为基于先前的数据总线电平来选择第一，第二和第三电压基准之一的多路复用逻辑。 其中如果先前数据总线电平为逻辑0，则选择第一参考电压。 如果先前的数据总线电平为逻辑1，则选择第二个参考电压。 如果先前的数据总线电平为三态，则选择第三个参考电压。
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公开(公告)号：US20190027265A1
公开(公告)日：2019-01-24
申请号：US16044111
申请日：2018-07-24
申请人： Joyoni Dey , Narayan Bhusal , Leslie Butler , Jonathan P. Dowling , Kyungmin Ham , Varshni Singh
发明人： Joyoni Dey , Narayan Bhusal , Leslie Butler , Jonathan P. Dowling , Kyungmin Ham , Varshni Singh
IPC分类号： G21K1/06 , G01N23/041
摘要： A phase contrast X-ray imaging system includes: an illumination source adapted to illuminate a region of interest; a diffraction grating adapted to receive illumination from the illuminated region of interest, the diffraction grating comprising a spatial structure having a first periodicity superimposed with a second periodicity that is different from the first periodicity; and a detector adapted to detect illumination passing through the diffraction grating, wherein the spatial structure is defined by varying height and/or pitch, and wherein the spatial structure imparts a first phase dependence based on the first periodicity and an additional phase dependence based on the second periodicity on the illumination passing through the diffraction grating.
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7.发明授权公开(公告)号：US08553754B2
公开(公告)日：2013-10-08
申请号：US12973242
申请日：2010-12-20
申请人： Ramon Mangaser , Shefali Walia , Edoardo Prete , Jonathan P. Dowling , Gerald R. Talbot , Sharad N. Vittal
发明人： Ramon Mangaser , Shefali Walia , Edoardo Prete , Jonathan P. Dowling , Gerald R. Talbot , Sharad N. Vittal
CPC分类号： H04L25/03878 , H04L25/03057
摘要： A decision feedback equalization (DFE) receiver and method are provided. The DFE receiver is configured to sample data bits from a data bus. The DFE receiver includes a data sampler configured to sample a current data bit from the data bus using one of a first, second and third voltage reference. The DFE receiver also includes multiplexing logic configured to select one of the first, second and third voltage references based on a prior data bus level. The wherein the first voltage reference is selected if the prior data bus level was a logic zero. The second voltage reference is selected if the prior data bus level was a logic one. The third voltage reference is selected if the prior data bus level was tri-state.
摘要翻译： 提供了一种判决反馈均衡（DFE）接收机和方法。 DFE接收器配置为从数据总线采样数据位。 DFE接收器包括数据采样器，其被配置为使用第一，第二和第三参考电压之一从数据总线采样当前数据位。 DFE接收机还包括被配置为基于先前的数据总线电平来选择第一，第二和第三电压基准之一的多路复用逻辑。 其中如果先前数据总线电平为逻辑0，则选择第一参考电压。 如果先前的数据总线电平为逻辑1，则选择第二个参考电压。 如果先前的数据总线电平为三态，则选择第三个参考电压。
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8.发明授权Optical switch that utilizes one-dimensional, nonlinear, multilayer dielectric stacks 失效光开关利用一维，非线性，多层电介质叠层
公开(公告)号：US5740287A
公开(公告)日：1998-04-14
申请号：US568728
申请日：1995-12-07
CPC分类号： B82Y20/00 , G02B6/1225 , G02F1/35 , G02B2006/12145 , G02F1/3511
摘要： An optical switch in a one-dimensional multilayer dielectric stack having a photonic band gap, composed of at least two groups of layers of dielectric material whose operating wavelength is near the edge of said photonic band gap. At least one layer of each of the groups is composed of a nonlinear c.sub.3 dielectric material, which creates an intensity-dependent shift in the location of the band gap and produces a dynamical change in the transmissive and reflective properties of the multilayer dielectric stack in response to changes in the intensity of light or the transmittance of electromagnetic radiation passing through the multilayer dielectric stack. The width of the photonic band gap is determined by the differences between the refractive indices of the nonlinear dielectric material and that of the other layers of dielectric material in the multilayer dielectric stack.
摘要翻译： 一种具有光子带隙的一维多层电介质堆叠中的光开关，其由工作波长接近所述光子带隙边缘的至少两组介电材料构成。 每个组中的至少一个层由非线性c3电介质材料组成，其在带隙的位置上产生强度依赖性的偏移，并且响应地产生多层介质叠层的透射和反射特性的动态变化 以改变光的强度或通过多层介质叠层的电磁辐射的透射率。 光子带隙的宽度由非线性介电材料的折射率与多层介质叠层中其它介电材料层的折射率之差决定。
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公开(公告)号：US11488740B2
公开(公告)日：2022-11-01
申请号：US17097770
申请日：2020-11-13
申请人： Joyoni Dey , Narayan Bhusal , Leslie Butler , Jonathan P. Dowling , Kyungmin Ham , Varshni Singh
发明人： Joyoni Dey , Narayan Bhusal , Leslie Butler , Jonathan P. Dowling , Kyungmin Ham , Varshni Singh
IPC分类号： G01N23/00 , G21K1/06 , G01N23/041
摘要： A phase contrast X-ray imaging system includes: an illumination source adapted to illuminate a region of interest; a diffraction grating adapted to receive illumination from the illuminated region of interest, the diffraction grating comprising a spatial structure having a first periodicity superimposed with a second periodicity that is different from the first periodicity; and a detector adapted to detect illumination passing through the diffraction grating, wherein the spatial structure is defined by varying height and/or pitch, and wherein the spatial structure imparts a first phase dependence based on the first periodicity and an additional phase dependence based on the second periodicity on the illumination passing through the diffraction grating.
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公开(公告)号：US20210065924A1
公开(公告)日：2021-03-04
申请号：US17097770
申请日：2020-11-13
申请人： Joyoni Dey , Narayan Bhusal , Leslie Butler , Jonathan P. Dowling , Kyungmin Ham , Varshni Singh
发明人： Joyoni Dey , Narayan Bhusal , Leslie Butler , Jonathan P. Dowling , Kyungmin Ham , Varshni Singh
IPC分类号： G21K1/06 , G01N23/041
摘要： A phase contrast X-ray imaging system includes: an illumination source adapted to illuminate a region of interest; a diffraction grating adapted to receive illumination from the illuminated region of interest, the diffraction grating comprising a spatial structure having a first periodicity superimposed with a second periodicity that is different from the first periodicity; and a detector adapted to detect illumination passing through the diffraction grating, wherein the spatial structure is defined by varying height and/or pitch, and wherein the spatial structure imparts a first phase dependence based on the first periodicity and an additional phase dependence based on the second periodicity on the illumination passing through the diffraction grating.
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