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31. 发明申请

US20060056365A1 Wireless communications system employing a network active set formed from base stations operable as primary and secondary agents 有权
公开(公告)号：US20060056365A1
公开(公告)日：2006-03-16
申请号：US10941067
申请日：2004-09-13
申请人： Suman Das , Thierry Klein , Kin Leung , Sayandev Mukherjee , Georger Rittenhouse , Louis Samuel , Harish Viswanathan , Haitao Zheng
发明人： Suman Das , Thierry Klein , Kin Leung , Sayandev Mukherjee , Georger Rittenhouse , Louis Samuel , Harish Viswanathan , Haitao Zheng
IPC分类号： H04Q7/20 , H04L12/66 , H04Q7/24
CPC分类号： H04W28/22 , H04L41/046 , H04L41/0896 , H04L41/12 , H04W40/02
摘要： A method for controlling a wireless communications system is provided. A plurality of substantially identical base stations, each capable of being operated as both a primary agent and a secondary agent are deployed. The secondary agent is capable of communicating with a mobile device and the primary agent is capable of communicating with a network. A network active set associated with a mobile device is formed from a plurality of the base stations. One of the base stations in the network active set is selected to operate as the primary agent, and it communicates to the other base stations that the selected base station is operating as the primary agent. Thus, communications between the network and the mobile device are routed through the primary agent and the selected secondary agent.

32. 发明授权

US09522426B2 Systems and methods for additive manufacturing and repair of metal components 有权
标题翻译：金属部件添加剂制造和修理的系统和方法
公开(公告)号：US09522426B2
公开(公告)日：2016-12-20
申请号：US14076101
申请日：2013-11-08
申请人： Suman Das , Rohan Bansal , Justin Gambone
发明人： Suman Das , Rohan Bansal , Justin Gambone
IPC分类号： G06F19/00 , B22F3/105 , B22F5/00 , B22F5/04 , B29C67/00 , C30B13/24 , C30B29/52 , B22F7/06 , B29L31/08 , B23P6/00
CPC分类号： B22F7/062 , B22F3/1055 , B22F5/009 , B22F5/04 , B22F2003/1056 , B22F2003/1057 , B22F2007/068 , B23P6/007 , B29C64/153 , B29L2031/08 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y70/00 , B33Y80/00 , C30B13/24 , C30B13/28 , C30B13/32 , C30B19/08 , C30B19/10 , C30B29/52 , Y02P10/295
摘要： Scanning Laser Epitaxy (SLE) is a layer-by-layer additive manufacturing process that allows for the fabrication of three-dimensional objects with specified microstructure through the controlled melting and re-solidification of a metal powders placed atop a base substrate. SLE can be used to repair single crystal (SX) turbine airfoils, for example, as well as the manufacture functionally graded turbine components. The SLE process is capable of creating equiaxed, directionally solidified, and SX structures. Real-time feedback control schemes based upon an offline model can be used both to create specified defect free microstructures and to improve the repeatability of the process. Control schemes can be used based upon temperature data feedback provided at high frame rate by a thermal imaging camera as well as a melt-pool viewing video microscope. A real-time control scheme can deliver the capability of creating engine ready net shape turbine components from raw powder material.
摘要翻译：扫描激光外延（SLE）是一种逐层添加剂制造工艺，其允许通过控制熔化和再固化放置在基底顶部的金属粉末来制造具有指定微结构的三维物体。例如，SLE可用于修复单晶（SX）涡轮机翼型，以及制造功能梯度的涡轮机部件。 SLE过程能够产生等轴，定向凝固和SX结构。基于离线模型的实时反馈控制方案可用于创建指定的无缺陷微结构并提高过程的重复性。可以基于通过热成像相机以及熔池观察视频显微镜在高帧速率下提供的温度数据反馈来使用控制方案。实时控制方案可以提供从原料粉末制造发动机准备好的网状涡轮机部件的能力。

33. 发明授权

US08367462B2 Large-scale fabrication of vertically aligned ZnO nanowire arrays 有权
标题翻译：垂直排列的ZnO纳米线阵列的大规模制造
公开(公告)号：US08367462B2
公开(公告)日：2013-02-05
申请号：US13091855
申请日：2011-04-21
申请人： Zhong L. Wang , Suman Das , Sheng Xu , Dajun Yuan , Rui Guo , Yaguang Wei , Wenzhuo Wu
发明人： Zhong L. Wang , Suman Das , Sheng Xu , Dajun Yuan , Rui Guo , Yaguang Wei , Wenzhuo Wu
IPC分类号： H01L33/26 , H01L33/04 , H01L21/36 , B82Y40/00
CPC分类号： H01L21/02472 , B82Y10/00 , B82Y40/00 , H01L21/02494 , H01L21/02554 , H01L21/02603 , H01L21/02639 , H01L33/0087 , H01L33/08 , H01L33/18 , H01L33/28
摘要： In a method for growing a nanowire array, a photoresist layer is placed onto a nanowire growth layer configured for growing nanowires therefrom. The photoresist layer is exposed to a coherent light interference pattern that includes periodically alternately spaced dark bands and light bands along a first orientation. The photoresist layer exposed to the coherent light interference pattern along a second orientation, transverse to the first orientation. The photoresist layer developed so as to remove photoresist from areas corresponding to areas of intersection of the dark bands of the interference pattern along the first orientation and the dark bands of the interference pattern along the second orientation, thereby leaving an ordered array of holes passing through the photoresist layer. The photoresist layer and the nanowire growth layer are placed into a nanowire growth environment, thereby growing nanowires from the nanowire growth layer through the array of holes.
摘要翻译：在用于生长纳米线阵列的方法中，将光致抗蚀剂层置于配置用于从其生长纳米线的纳米线生长层上。光致抗蚀剂层暴露于相干光干涉图案，其包括周期性交替间隔的暗带和沿第一取向的光带。光致抗蚀剂层沿着与第一取向垂直的第二取向暴露于相干光干涉图案。光致抗蚀剂层被显影，以沿着第一取向和干涉图案的暗带沿着第二取向从对应于干涉图案的暗带的区域的区域移除光致抗蚀剂，从而留下穿过的有序阵列的孔光刻胶层。将光致抗蚀剂层和纳米线生长层放置在纳米线生长环境中，从而从纳米线生长层通过孔阵列生长纳米线。

34. 发明授权

US07509240B2 Solid freeform fabrication of structurally engineered multifunctional devices 有权
标题翻译：结构设计的多功能设备的固体自由形成
公开(公告)号：US07509240B2
公开(公告)日：2009-03-24
申请号：US10268359
申请日：2002-10-10
申请人： Suman Das , Scott J Hollister , Paul H Krebsbach , James K Santosa
发明人： Suman Das , Scott J Hollister , Paul H Krebsbach , James K Santosa
IPC分类号： G06F17/50
CPC分类号： B29C64/153 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y80/00
摘要： A selective laser sintering technique and system are provided for producing a heterogeneous product. The selective laser sintering technique and system is generally comprised of generating a computer model of the product and processing the model to obtain numerous cross-sectional representations of the model. The cross-sectional representations are manufactured layer by layer to create the product. Specifically, numerous different powders having a variety of properties are placed within nozzles positioned above a deposition bed using a hopper. Using the computer model as a guide, the different powders are placed at different positions on the deposition bed to form each layer of the device. The deposited powders are consolidated, micromachined, and milled using one or more lasers to create the product. Using this selective laser sintering technique a wide variety of heterogenous products may be produced, such as the following: 1) bio-implants, 2) small scale energy production, storage and conversion devices, 3) devices that exploit anomalous material behavior, and 4) nanocomposites.
摘要翻译：提供选择性激光烧结技术和系统用于生产异质产品。选择性激光烧结技术和系统通常包括产生产品的计算机模型并处理模型以获得模型的许多横截面表示。横截面表示逐层制造以产生产品。具体而言，使用料斗将多种具有各种性质的不同粉末放置在位于沉积床上方的喷嘴内。使用计算机模型作为指导，将不同的粉末放置在沉积床上的不同位置以形成装置的每一层。使用一个或多个激光将沉积的粉末固结，微加工和研磨以产生产物。使用这种选择性激光烧结技术可以产生各种各样的异质产物，例如：1）生物植入物，2）小规模能量产生，储存和转化装置，3）利用异常材料行为的装置，以及4 ）纳米复合材料。

35. 发明授权

US06676892B2 Direct selective laser sintering of metals 有权
标题翻译：直接选择性激光烧结金属
公开(公告)号：US06676892B2
公开(公告)日：2004-01-13
申请号：US09873055
申请日：2001-06-01
申请人： Suman Das , Joseph J. Beaman
发明人： Suman Das , Joseph J. Beaman
IPC分类号： B32B3128
CPC分类号： G05B19/4062 , B22F3/1055 , B22F2999/00 , B23K35/0244 , B33Y10/00 , B33Y30/00 , G05B2219/49018 , Y02P10/295 , B22F2201/20
摘要： A method of fabricating a fully dense, three dimensional object by direct laser sintering is disclosed. In a chamber with a partial pressure atmosphere, a beam of directed energy melts metallic powder in order to form a solid layer cross section. Another layer of powder is deposited and melted, along with a portion of the previous layer. The energy beam typically is in the form of a laser, scanning along a path resembling a parametric curve or another, arbitrary piecewise parametric curve. In another embodiment, the previous layer is not remelted, thus creating an oxide film that acts as a clean stop to prevent unwanted downward growth.
摘要翻译：公开了通过直接激光烧结制造完全致密的三维物体的方法。在具有分压气氛的室中，一束有向能量的金属粉末熔化以形成固体层横截面。另一层粉末与前一层的一部分一起沉积并熔化。能量束通常是激光的形式，沿着类似于参数曲线的路径或另一个任意的分段参数曲线扫描。在另一个实施方案中，先前的层不被重熔，从而产生氧化膜，其作为干净的止挡以防止不期望的向下生长。

36. 发明授权

US06355086B2 Method and apparatus for making components by direct laser processing 失效
标题翻译：通过直接激光加工制造部件的方法和装置
公开(公告)号：US06355086B2
公开(公告)日：2002-03-12
申请号：US08910044
申请日：1997-08-12
申请人： Lawrence Evans Brown , Timothy Paul Fuesting , Joseph Jefferson Beaman, Jr. , Suman Das
发明人： Lawrence Evans Brown , Timothy Paul Fuesting , Joseph Jefferson Beaman, Jr. , Suman Das
IPC分类号： C22C100
CPC分类号： F01D11/12 , B22F3/1055 , B22F2998/00 , Y02P10/295 , Y02T50/672 , Y10T428/12007 , C22C1/05 , C22C32/00 , F01D5/00
摘要： The present invention relates to a method an apparatus for fabricating a component by a direct laser process. One form of the present invention contemplates a gas turbine engine blade having an abrasive tip formed directly thereon.
摘要翻译：本发明涉及一种通过直接激光工艺制造部件的装置的方法。本发明的一种形式涉及一种具有直接形成在其上的研磨尖端的燃气涡轮发动机叶片。

37. 发明申请

US20110309354A1 Large-scale Fabrication of Vertically Aligned ZnO Nanowire Arrays 有权
标题翻译：垂直对准的ZnO纳米线阵列的大规模制造
公开(公告)号：US20110309354A1
公开(公告)日：2011-12-22
申请号：US13091855
申请日：2011-04-21
申请人： Zhong L. Wang , Suman Das , Sheng Xu , Dajun Yuan , Rui Guo , Yaguang Wei , Wenzhuo Wu
发明人： Zhong L. Wang , Suman Das , Sheng Xu , Dajun Yuan , Rui Guo , Yaguang Wei , Wenzhuo Wu
IPC分类号： H01L33/26 , H01L33/04 , H01L21/36 , B82Y40/00
CPC分类号： H01L21/02472 , B82Y10/00 , B82Y40/00 , H01L21/02494 , H01L21/02554 , H01L21/02603 , H01L21/02639 , H01L33/0087 , H01L33/08 , H01L33/18 , H01L33/28
摘要： In a method for growing a nanowire array, a photoresist layer is placed onto a nanowire growth layer configured for growing nanowires therefrom. The photoresist layer is exposed to a coherent light interference pattern that includes periodically alternately spaced dark bands and light bands along a first orientation. The photoresist layer exposed to the coherent light interference pattern along a second orientation, transverse to the first orientation. The photoresist layer developed so as to remove photoresist from areas corresponding to areas of intersection of the dark bands of the interference pattern along the first orientation and the dark bands of the interference pattern along the second orientation, thereby leaving an ordered array of holes passing through the photoresist layer. The photoresist layer and the nanowire growth layer are placed into a nanowire growth environment, thereby growing nanowires from the nanowire growth layer through the array of holes.
摘要翻译：在用于生长纳米线阵列的方法中，将光致抗蚀剂层置于配置用于从其生长纳米线的纳米线生长层上。光致抗蚀剂层暴露于相干光干涉图案，其包括周期性交替间隔的暗带和沿第一取向的光带。光致抗蚀剂层沿着与第一取向垂直的第二取向暴露于相干光干涉图案。光致抗蚀剂层被显影，以沿着第一取向和干涉图案的暗带沿着第二取向从对应于干涉图案的暗带的区域的区域移除光致抗蚀剂，从而留下穿过的有序阵列的孔光刻胶层。将光致抗蚀剂层和纳米线生长层放置在纳米线生长环境中，从而从纳米线生长层通过孔阵列生长纳米线。

38. 发明申请

US20100003619A1 SYSTEMS AND METHODS FOR FABRICATING THREE-DIMENSIONAL OBJECTS 有权
标题翻译：制作三维物体的系统和方法
公开(公告)号：US20100003619A1
公开(公告)日：2010-01-07
申请号：US12435776
申请日：2009-05-05
申请人： Suman Das , John W. Halloran
发明人： Suman Das , John W. Halloran
IPC分类号： G03F7/20 , G03B27/42
CPC分类号： B29C67/0066 , B22C9/02 , B22C9/24 , B29C64/135 , B33Y10/00 , B33Y30/00 , B33Y50/02 , G03B27/42 , G03F7/2057 , G03F7/70291 , G03F7/70416
摘要： Systems and methods for fabricating three-dimensional objects. The system includes an optical imaging system providing a light source; a photosensitive medium adapted to change states upon exposure to a portion of the light source from the optical imaging system; a control system for controlling movement of the optical imaging system, wherein the optical imaging system moves continuously above the photosensitive medium. The method includes moving a maskless optical imaging system providing the light beam in a continuous sequence; presenting the light beam on a portion of the photosensitive medium; lowering a plate upon which the photosensitive medium resides; and applying a new layer of the photosensitive medium.
摘要翻译：用于制造三维物体的系统和方法。该系统包括提供光源的光学成像系统; 适于在从光学成像系统暴露于光源的一部分时改变状态的光敏介质; 用于控制光学成像系统的移动的控制系统，其中光学成像系统连续地在光敏介质上移动。该方法包括以连续的顺序移动提供光束的无掩模光学成像系统; 将光束呈现在感光介质的一部分上; 降低光敏介质所在的平板; 并施加新的感光介质层。

39. 发明授权

US08636496B2 Systems and methods for fabricating three-dimensional objects 有权
标题翻译：用于制造三维物体的系统和方法
公开(公告)号：US08636496B2
公开(公告)日：2014-01-28
申请号：US12435776
申请日：2009-05-05
申请人： Suman Das , John W. Halloran
发明人： Suman Das , John W. Halloran
IPC分类号： B29C35/08
CPC分类号： B29C67/0066 , B22C9/02 , B22C9/24 , B29C64/135 , B33Y10/00 , B33Y30/00 , B33Y50/02 , G03B27/42 , G03F7/2057 , G03F7/70291 , G03F7/70416
摘要： Systems and methods for fabricating three-dimensional objects. The system includes an optical imaging system providing a light source; a photosensitive medium adapted to change states upon exposure to a portion of the light source from the optical imaging system; a control system for controlling movement of the optical imaging system, wherein the optical imaging system moves continuously above the photosensitive medium. The method includes moving a maskless optical imaging system providing the light beam in a continuous sequence; presenting the light beam on a portion of the photosensitive medium; lowering a plate upon which the photosensitive medium resides; and applying a new layer of the photosensitive medium.
摘要翻译：用于制造三维物体的系统和方法。该系统包括提供光源的光学成像系统; 适于在从光学成像系统暴露于光源的一部分时改变状态的光敏介质; 用于控制光学成像系统的移动的控制系统，其中光学成像系统连续地在光敏介质上移动。该方法包括以连续的顺序移动提供光束的无掩模光学成像系统; 将光束呈现在感光介质的一部分上; 降低光敏介质所在的平板; 并施加新的感光介质层。

40. 发明申请

US20120209808A1 METHOD AND APPARATUS FOR PEER-TO-PEER DATABASE SYNCHRONIZATION IN DYNAMIC NETWORKS 有权
标题翻译：动态网络中对等数据库同步的方法与装置
公开(公告)号：US20120209808A1
公开(公告)日：2012-08-16
申请号：US13025908
申请日：2011-02-11
申请人： Chienwen Tien , Raymond B. Miller , Jih-Tsang Leu , Pravir A. Patel , Suman Das , Jaideep Singh Lamba , Liem Le
发明人： Chienwen Tien , Raymond B. Miller , Jih-Tsang Leu , Pravir A. Patel , Suman Das , Jaideep Singh Lamba , Liem Le
IPC分类号： G06F17/30
CPC分类号： H04L67/1095 , H04L69/28 , H04W4/90
摘要： A distributed database synchronization capability is provided herein. The distributed database synchronization capability may be implemented using one or more of a timer-based scheme and a token-based scheme. The distributed database synchronization capability enables synchronization of databases of nodes in various types of networks, including dynamic networks (e.g., such as rapidly deployable wireless networks) and various other types of networks. The synchronization of databases may include synchronization of databases as a whole and/or portions of databases (which may include any suitable database table or tables). The distributed database synchronization capability enables synchronization of databases of nodes under various dynamic conditions (e.g., synchronization of databases of nodes within a cluster of nodes, synchronization of databases of nodes between clusters of nodes, synchronization of databases of nodes by administrative domain, and the like).
摘要翻译：本文提供了分布式数据库同步功能。可以使用基于定时器的方案和基于令牌的方案中的一个或多个来实现分布式数据库同步能力。分布式数据库同步能力使各种类型网络中的节点数据库能够同步，包括动态网络（例如，可快速部署的无线网络）和各种其他类型的网络。数据库的同步可以包括作为整体的数据库和/或数据库的部分（其可以包括任何合适的数据库表或表）的同步。分布式数据库同步功能可以实现各种动态条件下节点数据库的同步（例如，节点集群内的节点数据库的同步，节点集群之间的节点数据库的同步，管理域的节点数据库同步，喜欢）。

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