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1. 发明申请

US20100123506A1 MULTISTAGE LEVEL TRANSLATOR 审中-公开
公开(公告)号：US20100123506A1
公开(公告)日：2010-05-20
申请号：US12275109
申请日：2008-11-20
申请人： Cung Vu , Dung Tran
发明人： Cung Vu , Dung Tran
IPC分类号： H03L5/00
CPC分类号： H03F3/45183 , H03F2203/45248 , H03F2203/45644
摘要： Multistage signal amplification, including level translation, improves signal integrity, e.g., slew rate, complementary signal delay and duty cycle performance, by mirroring complementary output current in an output stage based on a signal developed in an input stage pull-up network. A multistage amplifier may comprise a first stage comprising a differential input circuit coupled, respectively, between first and second inputs and first and second nodes, wherein the first node is coupled to a first pull-up circuit controlled by the first node and the second node is coupled to a second pull-up circuit controlled by the second node; and a second stage comprising a complementary output circuit coupled, respectively, between first and second nodes and first and second outputs, wherein a current mirror sinks essentially the same current at the first output as is sourced at the second output and vice versa. The pull-up network may further comprise a cross-coupled pull-up circuit.
摘要翻译：基于在输入级上拉网络中产生的信号，通过在输出级中镜像互补输出电流，包括电平转换的多级信号放大提高了信号完整性，例如压摆率，互补信号延迟和占空比性能。多级放大器可以包括第一级，其包括分别耦合在第一和第二输入与第一和第二节点之间的差分输入电路，其中第一节点耦合到由第一节点和第二节点控制的第一上拉电路耦合到由第二节点控制的第二上拉电路; 以及第二级，包括分别耦合在第一和第二节点之间的互补输出电路以及第一和第二输出，其中电流镜在第一输出处基本上吸收与在第二输出端源相同的电流，反之亦然。上拉网络还可以包括交叉耦合上拉电路。

2. 发明授权

US5391686A Polyurethane compositions having enhanced corrosion inhibiting properties 失效
标题翻译：具有增强的腐蚀抑制性能的聚氨酯组合物
公开(公告)号：US5391686A
公开(公告)日：1995-02-21
申请号：US991903
申请日：1992-12-17
申请人： Jalandar Y. Jadhav , Cung Vu
发明人： Jalandar Y. Jadhav , Cung Vu
IPC分类号： C08G18/08 , C08G18/48 , C08G18/66 , C08G18/76 , C09D175/08 , B32B15/08 , B32B27/40
CPC分类号： C08G18/7664 , C08G18/0885 , C08G18/4812 , C08G18/6677 , C09D175/08 , C08G2150/90 , Y10T428/31551 , Y10T428/31605
摘要： A novel polyurethane formulation especially effective as a corrosion preventing coating for metallic substrates. The polyurethane is prepared by mixing two components, one being a mixture of high and low molecular weight polyol compounds and the other being a polymeric methylene polyphenyl isocyanate (MDI).
摘要翻译：一种新颖的聚氨酯配方，特别适用于金属基材的防腐涂层。通过混合两种组分制备聚氨酯，一种是高分子量和低分子量多元醇化合物的混合物，另一种是聚合亚甲基聚苯基异氰酸酯（MDI）。

3. 发明授权

US08289808B2 System and method to estimate compressional to shear velocity (VP/VS) ratio in a region remote from a borehole 有权
标题翻译：估计远离钻孔的区域的压缩剪切速度（VP / VS）比的系统和方法
公开(公告)号：US08289808B2
公开(公告)日：2012-10-16
申请号：US12463796
申请日：2009-05-11
申请人： Cung Vu , Kurt T. Nihei , Denis P. Schmitt , Christopher Skelt , Paul A. Johnson , Robert Guyer , James A. TenCate , Pierre-Yves Le Bas
发明人： Cung Vu , Kurt T. Nihei , Denis P. Schmitt , Christopher Skelt , Paul A. Johnson , Robert Guyer , James A. TenCate , Pierre-Yves Le Bas
IPC分类号： G01V1/00
CPC分类号： G01V1/44 , G01V1/006 , G01V2210/125 , G01V2210/127 , G01V2210/588
摘要： In some aspects of the disclosure, a method for creating three-dimensional images of non-linear properties and the compressional to shear velocity ratio in a region remote from a borehole using a conveyed logging tool is disclosed. In some aspects, the method includes arranging a first source in the borehole and generating a steered beam of elastic energy at a first frequency; arranging a second source in the borehole and generating a steerable beam of elastic energy at a second frequency, such that the steerable beam at the first frequency and the steerable beam at the second frequency intercept at a location away from the borehole; receiving at the borehole by a sensor a third elastic wave, created by a three wave mixing process, with a frequency equal to a difference between the first and second frequencies and a direction of propagation towards the borehole; determining a location of a three wave mixing region based on the arrangement of the first and second sources and on properties of the third wave signal; and creating three-dimensional images of the non-linear properties using data recorded by repeating the generating, receiving and determining at a plurality of azimuths, inclinations and longitudinal locations within the borehole. The method is additionally used to generate three dimensional images of the ratio of compressional to shear acoustic velocity of the same volume surrounding the borehole.
摘要翻译：在本公开的一些方面，公开了一种用于使用输送的测井工具在远离钻孔的区域中创建非线性特性的三维图像和压缩剪切速度比的方法。在一些方面，该方法包括在钻孔中布置第一源并且以第一频率产生具有弹性能的转向束; 在钻孔中布置第二源，并在第二频率处产生可转向的弹性能量束，使得在第一频率处的可转向波束和第二频率处的可操纵波束在远离钻孔的位置处截取; 在钻孔处由传感器接收由三波混合过程产生的第三弹性波，其频率等于第一和第二频率之间的差异以及朝向钻孔传播的方向; 基于第一和第二源的布置以及第三波信号的特性来确定三波混频区域的位置; 以及使用通过重复生成，接收和确定钻孔内的多个方位角，倾斜度和纵向位置而记录的数据来创建非线性性质的三维图像。该方法另外用于产生围绕钻孔的相同体积的压缩与剪切声速之比的三维图像。

4. 发明授权

US08116167B2 Method and system for generating a beam of acoustic energy from a borehole, and applications thereof 有权
标题翻译：用于从钻孔产生声能束的方法和系统及其应用
公开(公告)号：US08116167B2
公开(公告)日：2012-02-14
申请号：US12137980
申请日：2008-06-12
申请人： Paul A. Johnson , James A. Ten Cate , Robert Guyer , Pierre-Yves Le Bas , Cung Vu , Kurt Nihei , Denis P. Schmitt , Christopher Skelt
发明人： Paul A. Johnson , James A. Ten Cate , Robert Guyer , Pierre-Yves Le Bas , Cung Vu , Kurt Nihei , Denis P. Schmitt , Christopher Skelt
IPC分类号： G01V1/50 , G01V1/44
CPC分类号： G01V1/46
摘要： A compact array of transducers is employed as a downhole instrument for acoustic investigation of the surrounding rock formation. The array is operable to generate simultaneously a first acoustic beam signal at a first frequency and a second acoustic beam signal at a second frequency different than the first frequency. These two signals can be oriented through an azimuthal rotation of the array and an inclination rotation using control of the relative phases of the signals from the transmitter elements or electromechanical linkage. Due to the non-linearity of the formation, the first and the second acoustic beam signal mix into the rock formation where they combine into a collimated third signal that propagates in the formation along the same direction than the first and second signals and has a frequency equal to the difference of the first and the second acoustic signals. The third signal is received either within the same borehole, after reflection, or another borehole, after transmission, and analyzed to determine information about rock formation. Recording of the third signal generated along several azimuthal and inclination directions also provides 3D images of the formation, information about 3D distribution of rock formation and fluid properties and an indication of the dynamic acoustic non-linearity of the formation.
摘要翻译：传感器的紧凑阵列被用作井下仪器，用于对周围岩层进行声学研究。阵列可操作以同时产生第一频率处的第一声波束信号和以与第一频率不同的第二频率的第二声束信号。这两个信号可以通过阵列的方位角旋转定向，并且通过使用来自发射器元件或机电连杆的信号的相对相位的控制来定位倾斜旋转。由于形成的非线性，第一和第二声束信号混合到岩层中，在那里它们组合成沿着与第一和第二信号相同的方向在地层中传播的准直的第三信号，并且具有频率等于第一和第二声信号的差。第三个信号在相同的钻孔，反射后或另一个钻孔中，在传输之后被接收并且被分析以确定关于岩层的信息。沿着几个方位和倾斜方向产生的第三信号的记录还提供了地层的3D图像，关于岩层的3D分布和流体性质的信息以及地层的动态声学非线性的指示。

5. 发明授权

US4855185A Polyurethane coatings for bridge deckings and the like 失效
标题翻译：桥面板用聚氨酯涂料等
公开(公告)号：US4855185A
公开(公告)日：1989-08-08
申请号：US206775
申请日：1988-06-15
申请人： Cung Vu , Susan P. Buxbaum , Norman E. Blank , Richard C. Hartwig
发明人： Cung Vu , Susan P. Buxbaum , Norman E. Blank , Richard C. Hartwig
IPC分类号： C08G18/08 , C08G18/65 , C08G18/66 , C08G18/69 , C08G18/76 , C08G18/80
CPC分类号： C08G18/0885 , C08G18/6505 , C08G18/6677 , C08G18/698 , C08G18/7671 , C08G18/8019 , Y10T428/31551 , Y10T428/31605
摘要： Novel polyurethane formulations especially useful as membranes for the protection of bridge deckings. The polurethane is prepared by mixing two components, A and B. Component A consists essentially of a low-molecular weight polyol, e.g., glycerol; a poly(oxypropylene) triol; and an elastomer. Component B is a special MDI, either a mix of 4,4'- and 2,4'-isomers of diphenylmethane diisocyanate or a mix of 4,4'-diphenylmethane diisocyanate and its reaction product with a low molecular weight poly(oxypropylene).
摘要翻译：新型聚氨酯配方，特别适用于保护桥面板的膜。聚氨酯通过混合两种组分A和B制备。组分A基本上由低分子量多元醇组成，例如甘油; 聚（氧丙烯）三醇; 和弹性体。组分B是特殊的MDI，二苯基甲烷二异氰酸酯的4,4'-和2,4'-异构体的混合物或4,4'-二苯基甲烷二异氰酸酯与其低分子量聚（氧丙烯）的反应产物的混合物，。

6. 发明申请

US20100265795A1 SYSTEM AND METHOD TO CREATE THREE-DIMENSIONAL IMAGES OF NON-LINEAR ACOUSTIC PROPERTIES IN A REGION REMOTE FROM A BOREHOLE 有权
标题翻译：系统和方法创建一个距离一个地层的一个地区的非线性声学特性的三维图像
公开(公告)号：US20100265795A1
公开(公告)日：2010-10-21
申请号：US12463802
申请日：2009-05-11
申请人： Paul A. Johnson , Cung Vu , James A. TenCate , Robert Guyer , Pierre-Yves Le Bas , Kurt T. Nihei , Denis P. Schmitt , Christopher Skelt
发明人： Paul A. Johnson , Cung Vu , James A. TenCate , Robert Guyer , Pierre-Yves Le Bas , Kurt T. Nihei , Denis P. Schmitt , Christopher Skelt
IPC分类号： G01V1/48
CPC分类号： G01V1/44 , G01V1/006 , G01V2210/125 , G01V2210/127 , G01V2210/588
摘要： In some aspects of the disclosure, a method for creating three-dimensional images of non-linear properties and the compressional to shear velocity ratio in a region remote from a borehole using a conveyed logging tool is disclosed. In some aspects, the method includes arranging a first source in the borehole and generating a steered beam of elastic energy at a first frequency; arranging a second source in the borehole and generating a steerable beam of elastic energy at a second frequency, such that the steerable beam at the first frequency and the steerable beam at the second frequency intercept at a location away from the borehole; receiving at the borehole by a sensor a third elastic wave, created by a three wave mixing process, with a frequency equal to a difference between the first and second frequencies and a direction of propagation towards the borehole; determining a location of a three wave mixing region based on the arrangement of the first and second sources and on properties of the third wave signal; and creating three-dimensional images of the non-linear properties using data recorded by repeating the generating, receiving and determining at a plurality of azimuths, inclinations and longitudinal locations within the borehole. The method is additionally used to generate three dimensional images of the ratio of compressional to shear acoustic velocity of the same volume surrounding the borehole.
摘要翻译：在本公开的一些方面，公开了一种用于使用输送的测井工具在远离钻孔的区域中创建非线性特性的三维图像和压缩剪切速度比的方法。在一些方面，该方法包括在钻孔中布置第一源并且以第一频率产生具有弹性能的转向束; 在钻孔中布置第二源，并在第二频率处产生可转向的弹性能量束，使得在第一频率处的可转向波束和第二频率处的可操纵波束在远离钻孔的位置处截取; 在钻孔处由传感器接收由三波混合过程产生的第三弹性波，其频率等于第一和第二频率之间的差异以及朝向钻孔传播的方向; 基于第一和第二源的布置以及第三波信号的特性来确定三波混频区域的位置; 以及使用通过重复生成，接收和确定钻孔内的多个方位角，倾斜度和纵向位置而记录的数据来创建非线性性质的三维图像。该方法另外用于产生围绕钻孔的相同体积的压缩与剪切声速之比的三维图像。

7. 发明授权

US5656393A Flexible electrode, product and process of forming same 失效
标题翻译：柔性电极，产品及其成型工艺
公开(公告)号：US5656393A
公开(公告)日：1997-08-12
申请号：US327268
申请日：1994-10-21
申请人： Frank Peter Boer , James Daniel Idol, Jr. , Ketan Vasantlal Shah , Cung Vu
发明人： Frank Peter Boer , James Daniel Idol, Jr. , Ketan Vasantlal Shah , Cung Vu
IPC分类号： H01M4/13 , H01M6/16 , H01M10/052 , H01M4/16 , H01M4/04
CPC分类号： H01M4/0404 , H01M4/02 , H01M4/04 , H01M4/0411 , H01M4/0435 , H01M10/052 , H01M2300/0025 , H01M4/13 , H01M6/164
摘要： A polymer bonded electrode composite composed of a polymer matrix having electrochemically active particulate therein and having a porous conductive sheet encapsulated within the matrix is disclosed. Further, a continuous process of forming the electrode composite by extrusion using a cross-head die is also disclosed.
摘要翻译：公开了一种聚合物键合电极复合体，其由其中具有电化学活性颗粒的聚合物基质组成并且具有封装在基体内的多孔导电片。此外，还公开了使用十字头模头通过挤出形成电极复合材料的连续方法。

8. 发明授权

US5091455A Polyurethane-poly (vinylchloride) interpenetrating network 失效
标题翻译：聚氨酯 - 聚（氯乙烯）互穿网络
公开(公告)号：US5091455A
公开(公告)日：1992-02-25
申请号：US550236
申请日：1990-07-10
申请人： Norman E. Blank , RIchard C. Hartwig , Cung Vu
发明人： Norman E. Blank , RIchard C. Hartwig , Cung Vu
IPC分类号： C08G18/08 , C08L27/06 , C08L75/04
CPC分类号： C08L27/06 , C08G18/0838 , C08L75/04 , C08G2190/00 , C08G2270/00 , C08L2205/04 , Y10S525/903
摘要： Interpenetrating network polymers (IPN's) are made by admixing polyols, polyisocyanate, and a poly(vinylchloride) plastisol, followed by heating to complete the cure. The resulting polyurethane/poly(vinylchloride) IPN has superior properties as sealant, especially for automotive parts.
摘要翻译：互穿网络聚合物（IPN）通过混合多元醇，多异氰酸酯和聚（氯乙烯）增塑溶胶，然后加热以完成固化而制备。所得聚氨酯/聚（氯乙烯）IPN具有优异的密封剂性能，特别适用于汽车零件。

9. 发明授权

US4859735A Castor oil based polyurethane for bridge deckings and related applications 失效
标题翻译：蓖麻油基聚氨酯用于桥面板及相关应用
公开(公告)号：US4859735A
公开(公告)日：1989-08-22
申请号：US245869
申请日：1988-09-16
申请人： Cung Vu
发明人： Cung Vu
IPC分类号： C08G18/32 , C08G18/36 , C08G18/54 , C08G18/69 , C08G18/77 , C08G18/80 , C09D175/04 , E01D19/08
CPC分类号： E01D19/083 , C08G18/36 , C08G18/548 , C08G18/698 , C08G18/8019 , C09D175/04 , Y10T428/31551 , Y10T428/31591 , Y10T428/31598
摘要： Novel polyurethane formulations especially useful as membranes of the protection of bridge deckings. The polyurethane is prepared by mixing two components, A and B. Component A comprises castor oil modified with a ketone-formaldehyde condensate and also preferably contains an elastomer. Component B is a modified MDI, being a mixture of diphenylmethane diisocyanate and its reaction product with a low molecular weight poly(oxyalkylene).

10. 发明申请

US20070216446A1 Complementary output inverter 有权
标题翻译：互补输出逆变器
公开(公告)号：US20070216446A1
公开(公告)日：2007-09-20
申请号：US11374913
申请日：2006-03-14
申请人： Cung Vu
发明人： Cung Vu
IPC分类号： H03K19/0175
CPC分类号： H03K5/1515
摘要： A complementary output driver includes a driver input that receives an input signal which alternates between a first state and a second state. A first inverter has a first input and a first output. The first input is coupled to the driver input and the first output generates a complementary output signal that is the complement of a present state of the input signal. A second inverter has a second input and a second output. The second input is coupled to the first output of the first inverter and the second output generates an output signal that is the complement of the present state of the first output. A push-pull network has a push-pull input and a push-pull output. The push-pull input is coupled to the driver input and the push-pull output is coupled to the second output.
摘要翻译：互补输出驱动器包括驱动器输入，其接收在第一状态和第二状态之间交替的输入信号。第一反相器具有第一输入和第一输出。第一输入耦合到驱动器输入，第一输出产生作为输入信号的当前状态的互补的互补输出信号。第二反相器具有第二输入和第二输出。第二输入耦合到第一反相器的第一输出，第二输出产生作为第一输出的当前状态的补码的输出信号。推挽网络具有推挽输入和推挽输出。推挽输入耦合到驱动器输入，并且推挽输出耦合到第二输出。

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