公开(公告)号：US5128607A

公开(公告)日：1992-07-07

申请号：US611242

申请日：1990-11-09

申请人： David W. Clark ,  David Chu ,  Alan Davis ,  Keith M. Ferguson

发明人： David W. Clark ,  David Chu ,  Alan Davis ,  Keith M. Ferguson

IPC分类号： G01R23/10 ,  G01R23/02 ,  G06F7/52 ,  G06F7/535

CPC分类号： G01R23/02

摘要： A method and apparatus makes rapid frequency measurements by measuring time intervals for a series of blocks of event counts with the number of events in each block held constant. This makes the numerator of the events/time relationship constant so it does not have to be measured, processed or stored. The frequency of the signal is determined by measuring the time interval, then taking the inverse of the measured value and multiplying by the appropriate constant. A fast inverse circuit uses a Taylor series expansion technique implemented in digital circuit, with the slope resolution adjusted for regions of small slope to improve accuracy.

公开(公告)号：US20130060905A1

公开(公告)日：2013-03-07

申请号：US13224337

申请日：2011-09-02

申请人： James Mickens ,  David Chu ,  Li Zhuang ,  Kaisen Lin

发明人： James Mickens ,  David Chu ,  Li Zhuang ,  Kaisen Lin

IPC分类号： G06F15/16

CPC分类号： H04L67/025 ,  H04L63/08 ,  H04L63/20 ,  H04L69/08

摘要： In the new architecture, a client that desires access to a piece of hardware sends HTTP requests to a device server. The server receives a HTTP requests, accesses a device on behalf of the client, and send the device's response back to the client in the form of an HTTP response. This architecture has three primary advantages. First, it offers a clean interface for clients where all devices are accessed as if they are web servers. Second, it helps make devices more secure whereby clients can be prevented from accessing hardware directly, and all device access is forced through the narrow HTTP access protocol and checked for compliance with a desired security policy. Third, since HTTP allows local and remote servers to be contacted, the proposed architecture makes it easy for clients to communicate with devices that are not physically co-resident with the client but which are accessible via a network connection.

摘要翻译： 在新架构中，希望访问硬件的客户端向设备服务器发送HTTP请求。 服务器接收HTTP请求，代表客户端访问设备，并以HTTP响应的形式将设备的响应发送回客户端。 这种架构有三个主要优点。 首先，它为所有设备的访问提供了一个干净的界面，就像它们是Web服务器一样。 第二，它有助于使设备更安全，从而可以防止客户端直接访问硬件，并且强制所有设备访问通过窄HTTP访问协议，并检查是否符合所需的安全策略。 第三，由于HTTP允许联系本地和远程服务器，因此所提出的架构使客户端能够轻松地与不与客户端物理共驻的设备进行通信，但可通过网络连接进行访问。

公开(公告)号：US08242120B2

公开(公告)日：2012-08-14

申请号：US12450531

申请日：2008-04-09

申请人： David Chu ,  Jagadeeshwar Rao

发明人： David Chu ,  Jagadeeshwar Rao

IPC分类号： A01N43/04 ,  C07D239/42 ,  C07D401/04 ,  C07D471/04 ,  C07D471/22 ,  C07D487/04

CPC分类号： C07H19/16 ,  C07H19/06 ,  C07H19/10 ,  C07H19/20

摘要： The present invention relates to the use of carbodine and 5-F carbodine and analogs thereof for use in the treatment or prophylaxis of influenza, in particular the H5N1 strain of Avian Influenza A virus or “bird flu” strain of influenza as well as the treatment or prophylaxis of Venezuela equine encephalitis virus or VEE.

摘要翻译： 本发明涉及用于治疗或预防流行性感冒，特别是禽流感A病毒的H5N1毒株或流感的“禽流感”菌株的卡宾丁和5-F碳二氢胆碱及其类似物的用途以及治疗 或预防委内瑞拉马脑炎病毒或VEE。

公开(公告)号：US20060274322A1

公开(公告)日：2006-12-07

申请号：US11142423

申请日：2005-06-01

申请人： David Chu ,  Lee Kalem ,  William Schluchter

发明人： David Chu ,  Lee Kalem ,  William Schluchter

IPC分类号： G01B11/02

CPC分类号： G01B9/02059 ,  G01B9/02003 ,  G01B9/02083

摘要： A method for non-linearity compensating interferometer position data generated from a measurement signal includes generating a first set of non-linearity parameters based on received digital position values. The method includes sensing whether a low velocity condition exists. A first one of the non-linearity parameters is updated based on an estimated magnitude of the measurement signal if the low velocity condition exists. At least one digital position value is compensated based on the updated non-linearity parameter if the low velocity condition exists.

摘要翻译： 从测量信号生成的用于非线性补偿干涉仪位置数据的方法包括基于接收的数字位置值生成第一组非线性参数。 该方法包括检测是否存在低速条件。 如果存在低速条件，则基于测量信号的估计幅度来更新非线性参数中的第一个。 如果存在低速条件，则基于更新的非线性参数来补偿至少一个数字位置值。

公开(公告)号：US20060238776A1

公开(公告)日：2006-10-26

申请号：US11112623

申请日：2005-04-22

申请人： David Chu ,  Evan Whitney

发明人： David Chu ,  Evan Whitney

IPC分类号： G01B11/14

CPC分类号： G01B11/002 ,  G01D5/34792 ,  G06F3/0321 ,  G06F3/0346

摘要： A system for sensing an absolute position in two dimensions includes a target having a two-dimensional target pattern. A sensor captures an image of a first subset of the target pattern. A controller generates a first image vector representing summations of rows of pixel values from the image, and a second image vector representing summations of columns of pixel values from the image. The controller is configured to determine an absolute two-dimensional position of the first subset with respect to an origin of the target pattern based on the first and the second image vectors and a plurality of target vectors that represent the target pattern.

摘要翻译： 用于感测二维绝对位置的系统包括具有二维目标图案的目标。 传感器捕获目标图案的第一子集的图像。 控制器生成表示来自图像的像素值行的和的第一图像矢量，以及表示来自图像的像素值的列的和的第二图像矢量。 控制器被配置为基于第一和第二图像矢量以及表示目标图案的多个目标矢量来确定第一子集相对于目标图案的原点的绝对二维位置。

公开(公告)号：US20050062624A1

公开(公告)日：2005-03-24

申请号：US10668851

申请日：2003-09-23

申请人： David Chu ,  Carol Courville ,  Lee Kalem

发明人： David Chu ,  Carol Courville ,  Lee Kalem

IPC分类号： G01B9/02 ,  G01D5/243 ,  G01D5/244 ,  H03M1/30 ,  H03M1/48

CPC分类号： H03M1/303

摘要： A method of digitizing first and second signals in imperfect quadrature for obtaining characteristic parameters of the first signal comprises providing a first signal, the first signal comprising an inphase quasi-sinusoidal analog signal. The method comprises providing a second signal, the second signal comprising a quadrature signal. The method comprises digitizing the first signal at a sampling rate, thereby generating a first plurality of sets of digital signal waveform samples and digitizing the second signal at the sampling rate, thereby generating a second plurality of sets of digital signal waveform samples. The method comprises digitally processing successive first and second sets of digital signal waveform samples to generate continually updated digital characteristic parameters representing a characteristic behavior of the first signal.

摘要翻译： 数字化不正确正交中的第一和第二信号以获得第一信号的特性参数的方法包括提供第一信号，第一信号包括同相准正弦模拟信号。 所述方法包括提供第二信号，所述第二信号包括正交信号。 该方法包括以采样率对第一信号进行数字化，从而产生第一多组数字信号波形样本，并以采样率对第二信号进行数字化，从而产生第二组多组数字信号波形样本。 该方法包括数字处理连续的第一和第二组数字信号波形样本以产生表示第一信号的特征行为的不断更新的数字特征参数。

公开(公告)号：US20140070991A1

公开(公告)日：2014-03-13

申请号：US13606029

申请日：2012-09-07

申请人： Jie Liu ,  Lin Zhong ,  David Chu ,  Gursharan Sidhu ,  Nissanka Arachchige Bodhi Priyantha ,  Sharad Agarwal

发明人： Jie Liu ,  Lin Zhong ,  David Chu ,  Gursharan Sidhu ,  Nissanka Arachchige Bodhi Priyantha ,  Sharad Agarwal

IPC分类号： G01S19/24

CPC分类号： G01S19/22 ,  G01S19/34 ,  G01S19/428

摘要： The description relates to mobile device location. One example can identify global navigation satellite system (GNSS) satellites expected to be in line-of-sight of a mobile device. This example can detect differences between received GNSS data signals and expected GNSS data signals from the expected GNSS satellites. The example can also determine a direction from the mobile device of an obstruction that is causing at least some of the detected differences.

摘要翻译： 该描述涉及移动设备位置。 一个例子可以确定预计将处于移动设备的视线中的全球导航卫星系统（GNSS）卫星。 该示例可以检测所接收的GNSS数据信号与预期GNSS卫星的预期GNSS数据信号之间的差异。 该示例还可以确定来自移动设备的导致至少一些检测到的差异的阻塞的方向。

公开(公告)号：US07911222B2

公开(公告)日：2011-03-22

申请号：US12571740

申请日：2009-10-01

申请人： Christopher Cheng ,  David Chu

发明人： Christopher Cheng ,  David Chu

IPC分类号： H03K19/003

CPC分类号： H03K19/00369 ,  H03K19/00323

摘要： A method for a mix mode driver to accommodate traces of different lengths includes storing in the mix mode driver a set of one or more control signals and coefficient signals for a trace length. The one or more control signals select a number of the stages to generate a variable amplitude data output signal. Each stage is operable to increase or decrease a data signal, and each of the coefficient signals determines the magnitude of increase or decrease of the data input signal by a stage. A method for operating the mix mode driver includes generating the variable amplitude data output signal with one or more of the stages, and providing the variable amplitude data output signal to a trace.

摘要翻译： 用于混合模式驱动器以适应不同长度的轨迹的方法包括在混合模式驱动器中存储用于跟踪长度的一组一个或多个控制信号和系数信号。 一个或多个控制信号选择多个级以产生可变幅度数据输出信号。 每个级可操作以增加或减少数据信号，并且系数信号中的每一个确定数据输入信号通过级的增加或减小的幅度。 用于操作混合模式驱动器的方法包括利用一个或多个级产生可变幅度数据输出信号，并将可变幅度数据输出信号提供给跟踪。

公开(公告)号：US20100317186A1

公开(公告)日：2010-12-16

申请号：US12815659

申请日：2010-06-15

申请人： Johanes Swenberg ,  David Chu ,  Theresa Kramer Guarini ,  Yonah Cho ,  Udayan Ganguly ,  Lucien Date

发明人： Johanes Swenberg ,  David Chu ,  Theresa Kramer Guarini ,  Yonah Cho ,  Udayan Ganguly ,  Lucien Date

IPC分类号： H01L21/28 ,  H01L21/31

CPC分类号： H01L21/28273 ,  H01L29/66825 ,  H01L29/7881 ,  Y10S438/911

摘要： Embodiments described herein generally relate to flash memory devices and methods for manufacturing flash memory devices. In one embodiment, a method for selective removal of nitrogen from the nitrided areas of a substrate is provided. The method comprises positioning a substrate comprising a material layer disposed adjacent to an oxide containing layer in a processing chamber, exposing the substrate to a nitridation process to incorporate nitrogen onto the material layer and the exposed areas of the oxide containing layer, and exposing the nitrided material layer and the nitrided areas of the oxide containing layer to a gas mixture comprising a quantity of a hydrogen containing gas and a quantity of an oxygen containing gas to selectively remove nitrogen from the nitrided areas of the oxide containing layer relative to the nitrided material layer using a radical oxidation process.

摘要翻译： 本文描述的实施例通常涉及用于制造闪存设备的闪存设备和方法。 在一个实施例中，提供了用于从衬底的氮化区域中选择性地除去氮的方法。 该方法包括将包括邻近含氧化物层的材料层的衬底定位在处理室中，将衬底暴露于氮化工艺以将氮掺入材料层和含氧化物层的暴露区域上，并将氮化 材料层和含氧化物层的氮化区域包含一定量的含氢气体和一定量的含氧气体的气体混合物，以相对于氮化材料层从含氧化物层的氮化区域选择性地除去氮气 使用自由基氧化工艺。

公开(公告)号：US20050185193A1

公开(公告)日：2005-08-25

申请号：US10783199

申请日：2004-02-20

申请人： William Schluchter ,  Louis Mueller ,  Douglas Woolverton ,  Jeffrey Young ,  Alan Ray ,  David Chu

发明人： William Schluchter ,  Louis Mueller ,  Douglas Woolverton ,  Jeffrey Young ,  Alan Ray ,  David Chu

IPC分类号： G01B11/00 ,  G03F7/20 ,  H01L21/027 ,  G01B9/02

CPC分类号： G03F7/70775

摘要： A system and method for acquiring position information of a movable apparatus relevant to a specific axis is disclosed. In one embodiment, an interferometer generates first and second beams and various beam-steering members are located to define beam path segments for the two beams, but no beam path segment varies in length in unity with displacements of the movable apparatus along the specific axis. In another or the same embodiment, each beam path segment in which the first beam either impinges or has been reflected from the movable apparatus is symmetrical to a corresponding beam path segment of the second beam. The movable apparatus may be a wafer stage in which the “specific axis” is the exposure axis of a projection lens, but with all optical members which cooperate with the stage being located beyond the ranges of the wafer stage in directions perpendicular to the lithographic exposure axis.

摘要翻译： 公开了一种用于获取与特定轴相关的可移动装置的位置信息的系统和方法。 在一个实施例中，干涉仪产生第一和第二光束，并且定位各种光束转向构件以限定用于两个光束的光束路径段，但是没有光束路径段随着可移动装置沿特定轴线的位移而在长度上变化。 在另一个或相同的实施例中，其中第一光束撞击或已经从可移动装置反射的每个光束路径段与第二光束的相应光束路径段对称。 可移动装置可以是其中“特定轴线”是投影透镜的曝光轴线的晶片台，但是与垂直于光刻曝光的方向的晶片台的位置超出晶片台的范围的所有光学构件 轴。