公开(公告)号：US06445832B1

公开(公告)日：2002-09-03

申请号：US09684817

申请日：2000-10-10

Applicant: Harry C. Lee ,  Dat Nguyen

Inventor： Harry C. Lee ,  Dat Nguyen

IPC: G06K900

CPC classification number: G06K9/32 ,  G06T7/248 ,  G06T2207/10016 ,  G06T2207/30232

Abstract: A method and apparatus are described for tracking an object image in an image sequence in which a template window associated with the object image is established from a first image in the image sequence and an edge gradient direction extracted. A search window associated with the object image is established from a second image in the image sequence and a second edge gradient direction associated with the search window extracted. The first and second edge gradient directions are weighted and correlated to provide a coordinate offset between relative positions of the object image in the search and template windows to track the object image in the image sequence. If the coordinate offset exceeds a predetermined value the template window is updated by establishing a new template window. Weighting further includes calculating a set of weighting coefficients for the edge gradient direction associated with the search window and the template window respectively such that a balanced contribution is provided from respective edge gradient directions in correlation. The edge direction gradient associated with the template window is auto-correlated to determine a quality measure. Extracting the second edge gradient direction further includes I filtering the second edge gradient direction and an edge magnitude, thinning the second edge gradient direction, thresholding the edge magnitude, and normalizing the second edge gradient direction if the edge magnitude is successfully thresholded.

Abstract translation: 描述了一种用于跟踪图像序列中的对象图像的方法和装置，其中从图像序列中的第一图像建立与对象图像相关联的模板窗口并提取边缘梯度方向。 与对象图像相关联的搜索窗口从图像序列中的第二图像和与提取的搜索窗口相关联的第二边缘渐变方向建立。 第一和第二边缘梯度方向被加权和相关以提供搜索中的对象图像的相对位置和模板窗口之间的坐标偏移，以跟踪图像序列中的对象图像。 如果坐标偏移超过预定值，则通过建立新的模板窗口来更新模板窗口。 加权进一步包括分别计算与搜索窗口和模板窗口相关联的边缘梯度方向的一组加权系数，使得从相关边缘梯度方向提供平衡贡献。 与模板窗口相关联的边缘方向梯度自动相关，以确定质量度量。 提取第二边缘梯度方向还包括对第二边缘梯度方向和边缘幅度I进行滤波，如果边缘幅度成功地被阈值化，则边缘幅度变薄，第二边缘梯度方向变薄，阈值边缘幅度以及归一化第二边缘梯度方向。

公开(公告)号：US5381687A

公开(公告)日：1995-01-17

申请号：US963344

申请日：1992-10-19

Applicant: Dat Nguyen ,  James A. Rivera

Inventor： Dat Nguyen ,  James A. Rivera

IPC: B66B29/06 ,  G01L25/00

CPC classification number: B66B29/06

Abstract: An escalator combplate is equipped with a stop switch that will interrupt the power to the escalator when objects trapped between the stop treads and combplate impose a predetermined lifting force on the combplate. The necessary lifting force is determined by code requirements, and the combplate is subjected to an upward spring force which equals the code-dictated lifting force. While the combplate is being lifted by the spring force, the stop switch or switches are set so that they will actuate at the calibrated position of the combplate. The spring force is then removed to allow the combplate to settle back to its normal operating position.

Abstract translation: 自动扶梯梳板配备有停止开关，当停止踏板和梳子之间的物体在梳板上施加预定的提升力时，停止开关将中断自动扶梯的动力。 必要的提升力由代码要求决定，梳板受到等于代码规定提升力的向上弹簧力。 当梳齿板被弹簧力提升时，停止开关或开关被设定为使得它们将在梳板的校准位置启动。 然后将弹簧力移除，以使梳板平稳回到正常的操作位置。

公开(公告)号：USD348757S

公开(公告)日：1994-07-12

申请号：US10523

申请日：1993-07-09

Applicant: James A. Rivera ,  Dat Nguyen ,  Dale R. Barrett ,  Gerald E. Johnson

Designer： James A. Rivera ,  Dat Nguyen ,  Dale R. Barrett ,  Gerald E. Johnson

公开(公告)号：US4982829A

公开(公告)日：1991-01-08

申请号：US460800

申请日：1990-01-04

Applicant: Gerald E. Johnson ,  Dat Nguyen

Inventor： Gerald E. Johnson ,  Dat Nguyen

IPC: B66B23/24

CPC classification number: B66B23/24

Abstract: The escalator handrail is provided with increased lateral flexibility by forming it with a guide rail spanning web which is elliptical in cross-section. Adjacent internal reinforcement cables are positioned in slightly vertically offset horiozntal planes so as not to unduly hinder lateral flexure of the handrail. The handrail's increased flexibility results in less frictional drag on the guide rail, and adapts the handrail for use with helical escalator assemblies and provides improved performance in conventional rectilinear escalators as well.

公开(公告)号：US4895239A

公开(公告)日：1990-01-23

申请号：US328924

申请日：1989-03-27

Applicant: Gerald E. Johnson ,  Frank M. Sansevero ,  Dat Nguyen

Inventor： Gerald E. Johnson ,  Frank M. Sansevero ,  Dat Nguyen

IPC: B66B21/06 ,  B66B23/02 ,  B66B23/14

CPC classification number: B66B21/06

Abstract: An escalator is provided with a curved path of travel from its entry to its exit landings. The path of travel of the escalator steps as seen in plan is a curve having a fixed center and a constant radius from landing to landing. In elevation, each landing portion will be disposed in vertically spaced horizontal planes, and there will be a medial constant slope ascending or descending portion. Interconnecting each landing portion with the constant slope portion will be entry and exit transitional curved portions of varying slope as seen in the elevational view. To enable the steps to traverse the curved path successfully, the effective length of at least one of the step chains is varied at different points along the path of travel of the escalator.

公开(公告)号：US09366887B2

公开(公告)日：2016-06-14

申请号：US14852939

申请日：2015-09-14

Applicant: Parviz Tayebati ,  Francisco Villarreal-Saucedo ,  Bien Chann ,  Dat Nguyen ,  Michael Deutsch

Inventor： Parviz Tayebati ,  Francisco Villarreal-Saucedo ,  Bien Chann ,  Dat Nguyen ,  Michael Deutsch

IPC: G02F1/01 ,  G21K5/02 ,  G02B27/14 ,  G02B27/09

CPC classification number: G02F1/29 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0652 ,  G02B6/2706 ,  G02B6/32 ,  G02B6/4296 ,  G02B27/0927 ,  G02B27/1006 ,  G02B27/123 ,  G02B27/141 ,  G02F1/0147 ,  G02F1/295 ,  G02F2001/294 ,  G21K5/02

Abstract: In various embodiments, a beam-parameter adjustment system and focusing system alters a spatial power distribution of a radiation beam, via thermo-optic effects, before the beam is coupled into an optical fiber or delivered to a workpiece.

Abstract translation: 在各种实施例中，光束参数调整系统和聚焦系统在光束耦合到光纤中或传送到工件之前通过热光效应来改变辐射束的空间功率分布。

公开(公告)号：US08464797B2

公开(公告)日：2013-06-18

申请号：US12816912

申请日：2010-06-16

Applicant: Hardev Singh ,  David Dietz, Jr. ,  Luis Melendez ,  Dat Nguyen

Inventor： Hardev Singh ,  David Dietz, Jr. ,  Luis Melendez ,  Dat Nguyen

IPC: E21B33/076 ,  E21B33/035

CPC classification number: E21B33/0385 ,  E21B33/0355 ,  E21B33/037 ,  E21B33/038 ,  Y10T137/0402

Abstract: A method for assembling a control module having a fixed part and a removable section. The method includes configuring the fixed part of the control module to be attached to a pressure supply line for receiving a fluid under pressure; providing in the fixed part a valve manifold that houses a hydraulic activated valve; detachably attaching the removable section of the control module to the fixed part; fluidly connecting an electrically activated valve of the removable section to the hydraulic activated valve such that the electrically activated valve controls the hydraulic activated valve; and configuring the electrically activated valve to electrically connect to a control section.

Abstract translation: 一种用于组装具有固定部分和可移除部分的控制模块的方法。 该方法包括将要连接到压力供应管线的控制模块的固定部分配置成用于接收压力下的流体; 在固定部分提供容纳液压活动阀的阀歧管; 将所述控制模块的可拆卸部分可拆卸地附接到所述固定部件; 将可拆卸部分的电活动阀流体连接到液压活动阀，使得电活动阀控制液压活动阀; 以及配置所述电激活阀以电连接到控制部。

公开(公告)号：US08419149B2

公开(公告)日：2013-04-16

申请号：US13208856

申请日：2011-08-12

Applicant: Do Young Byun ,  Vu Dat Nguyen

Inventor： Do Young Byun ,  Vu Dat Nguyen

IPC: B41J29/38

CPC classification number: B41J2/06 ,  B41J2/085 ,  B41J2/09 ,  B41J2/095

Abstract: The liquid droplet spraying apparatus of the present invention includes a nozzle body which comprises a chamber for containing a predetermined amount of fluid supplied from an exterior, and a nozzle communicating with the chamber and spraying a liquid droplet of the fluid contained in the chamber to one side of the material to be printed; an electrode module unit which is arranged to be attached to or spaced apart from an outside of the nozzle body; an alternating current signaler which applies an alternating current signal to the electrode module unit; and a signal control unit which controls intensity and frequency of an output signal from the alternating current signaler.

Abstract translation: 本发明的液滴喷射装置包括喷嘴主体，其包括用于容纳从外部供应的预定量的流体的腔室和与腔室连通并且将容纳在腔室中的液体的液滴喷射到一个 要打印的材料的一面; 电极模块单元，其布置成附接到喷嘴体的外部或与喷嘴体的外部间隔开; 交流信号发生器，其向所述电极模块单元施加交流信号; 以及信号控制单元，其控制来自交流信号发生器的输出信号的强度和频率。

公开(公告)号：US20120228030A1

公开(公告)日：2012-09-13

申请号：US13419028

申请日：2012-03-13

Applicant: Peringandoor Raman Hariharan ,  Robert Arnold Judge ,  Dat Nguyen ,  Greg Bailey

Inventor： Peringandoor Raman Hariharan ,  Robert Arnold Judge ,  Dat Nguyen ,  Greg Bailey

IPC: E21B7/00 ,  E21B21/06

CPC classification number: E21B21/066 ,  B02C18/142 ,  E21B21/001

Abstract: In a dual-gradient drilling apparatus, a subsea solids processing unit includes a housing, a solids processing mechanism disposed in the housing between a drilling mud inlet and a drilling mud outlet, and a flushing mechanism configured to flush the solids processing mechanism with a flushing fluid. A subsea solids processing unit may be controlled by rotating the solids processing mechanism in a forward direction and increasing a drive torque when a measured speed of the solids processing mechanism is below a desired rotation speed. The desired rotation speed may be decreased when a measured torque exceeds a selected maximum and a rotation direction of the solids processing mechanism may be reversed when the measured speed falls below a selected minimum.

Abstract translation: 在双梯度钻井设备中，海底固体处理单元包括壳体，设置在钻井泥浆入口和钻井泥浆出口之间的壳体中的固体处理机构，以及冲洗机构，其构造成用冲洗冲洗固体处理机构 流体。 可以通过使固体处理机构向前方向旋转来控制海底固体处理单元，并且当固体处理机构的测量速度低于期望的转速时增加驱动转矩。 当测量的转矩超过所选择的最大值时，当测量的速度低于所选择的最小值时，固体处理机构的旋转方向可以反转，所以可以减小期望的转速。

公开(公告)号：US20110100681A1

公开(公告)日：2011-05-05

申请号：US12736611

申请日：2009-04-02

Applicant: Peter Kimmich ,  Quoc-Dat Nguyen

Inventor： Peter Kimmich ,  Quoc-Dat Nguyen

IPC: H05K1/18 ,  H05K1/05 ,  H01K3/10

CPC classification number: H01L23/3677 ,  H01L23/142 ,  H01L24/45 ,  H01L24/48 ,  H01L24/49 ,  H01L25/072 ,  H01L2224/32225 ,  H01L2224/45015 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48227 ,  H01L2224/48472 ,  H01L2224/49 ,  H01L2224/73265 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01029 ,  H01L2924/01033 ,  H01L2924/01042 ,  H01L2924/0105 ,  H01L2924/01052 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/014 ,  H01L2924/12041 ,  H01L2924/1301 ,  H01L2924/13033 ,  H01L2924/13034 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/14 ,  H01L2924/181 ,  H01L2924/19041 ,  H01L2924/30107 ,  Y10T29/49162 ,  H01L2924/00014 ,  H01L2924/00

Abstract: In a circuit module having components that are fastened to a substrate, the substrate includes a carrier layer made of metal and having a first surface, a first insulating layer bordering directly on the carrier layer being situated on the first surface. The substrate also includes a first wiring layer bordering directly on the first insulating layer, which conducts electrically and is situated on the first insulating layer. The substrate includes a first contact plane, which runs along the first surface, at least one of the components being directly connected electrically to the carrier layer in the first contact plane.

Abstract translation: 在具有紧固到基板的部件的电路模块中，基板包括由金属制成的载体层，并且具有第一表面，直接位于载体层上的第一绝缘层位于第一表面上。 衬底还包括直接接合在第一绝缘层上的第一布线层，该第一布线层电导电并位于第一绝缘层上。 衬底包括沿着第一表面延伸的第一接触平面，至少一个部件在第一接触平面中直接与载体层电连接。