公开(公告)号：US20050088255A1

公开(公告)日：2005-04-28

申请号：US10979001

申请日：2004-11-01

Applicant: Louise Sengupta ,  Steven Stowell ,  Yongfei Zhu ,  Somnath Sengupta ,  Luna Chiu ,  Xubai Zhang

Inventor： Louise Sengupta ,  Steven Stowell ,  Yongfei Zhu ,  Somnath Sengupta ,  Luna Chiu ,  Xubai Zhang

IPC: H01G7/06 ,  H01P1/20 ,  H03H7/01

CPC classification number: H01P1/20

Abstract: This invention provides a voltage tunable filter comprising an input connection point, an output connection point, and at least one circuit branch electrically coupled to the input connection point and the output connection point and including a voltage tunable dielectric varactor electrically connected to an inductor. The voltage tunable filter can be one of a low-pass, high-pass, band-pass, or band-stop filter. The varactor can include built-in DC blocking capacitors.

Abstract translation: 本发明提供了一种电压可调谐滤波器，包括输入连接点，输出连接点和电耦合到输入连接点和输出连接点的至少一个电路支路，并且包括电连接到电感器的电压可调介质变容二极管。 电压可调滤波器可以是低通，高通，带通或带阻滤波器之一。 变容二极管可以包括内置的直流阻塞电容器。

公开(公告)号：US5766697A

公开(公告)日：1998-06-16

申请号：US766704

申请日：1996-11-05

Applicant: Somnath Sengupta ,  Louise Sengupta

Inventor： Somnath Sengupta ,  Louise Sengupta

IPC: C23C14/08 ,  C23C14/28 ,  C23C8/00

CPC classification number: C23C14/28 ,  C23C14/088

Abstract: A method of making ferroelectric thin film composites includes the step of roviding a barium strontium titanate material with an additive magnesia-based and forming a thin film ferroelectric composite using pulsed laser deposition. The method forms a thin film composite having enhanced electronic properties.

Abstract translation: 一种制备铁电薄膜复合材料的方法包括提供具有添加剂氧化镁的钛酸锶钡材料并使用脉冲激光沉积形成薄膜铁电复合材料的步骤。 该方法形成具有增强的电子性质的薄膜复合材料。

公开(公告)号：US5711810A

公开(公告)日：1998-01-27

申请号：US874951

申请日：1996-12-04

Applicant: Somnath Sengupta

Inventor： Somnath Sengupta

IPC: C23C14/28 ,  C23C14/00

CPC classification number: C23C14/28

Abstract: In a pulsed laser deposition system, the two optical actions of focusing rastering, and the optical chamber window are combined into a single optics system. The single optics system is mounted on the processing chamber. Combining the three separate optical functions into one optics system facilitates laser beam control and reduces the space needed for the apparatus.

Abstract translation: 在脉冲激光沉积系统中，聚焦和锐化的两种光学动作以及光学室窗口被组合成单个光学系统。 单个光学系统安装在处理室上。 将三个单独的光学功能组合成一个光学系统有助于激光束控制并且减少该设备所需的空间。

公开(公告)号：US07046728B1

公开(公告)日：2006-05-16

申请号：US09608989

申请日：2000-06-30

Applicant: Tinku Acharya ,  Somnath Sengupta ,  A. Rama Suryanarayana

Inventor： Tinku Acharya ,  Somnath Sengupta ,  A. Rama Suryanarayana

IPC: H04N7/18

CPC classification number: G06T9/001

Abstract: Briefly, in accordance with one embodiment, a technique for coding the movement of a head or face from a sequence of images is disclosed. A variety of potential alternative embodiments are discussed.

Abstract translation: 简而言之，根据一个实施例，公开了一种用于对来自图像序列的头部或面部的移动进行编码的技术。 讨论了各种潜在的替代实施例。

公开(公告)号：US06358386B1

公开(公告)日：2002-03-19

申请号：US09654832

申请日：2000-09-01

Applicant: Louise Sengupta ,  Somnath Sengupta ,  Eric Ngo

Inventor： Louise Sengupta ,  Somnath Sengupta ,  Eric Ngo

IPC: C25D1302

CPC classification number: C04B35/6264 ,  C04B35/4682 ,  C04B35/63 ,  C04B35/632 ,  C04B2235/3206 ,  C04B2235/3213 ,  C04B2235/446 ,  C04B2235/602 ,  C25D13/02

Abstract: A method of producing multilayered conformal coatings of tunable, low electronic loss ceramic composites is carried out by mixing two-phase BSTO/MgO into a base solution of typical lab grade acetone to form a mixed solution, inserting two platinum sheets separated into the mixed solution, applying a constant direct current (DC) bias across the two platinum sheets acting as electrodes, and stirring to reduce sedimentation of particles using a magnetic stirrer. Deposition is also performed on insulating substrates by initially coating them with conducting films of Au, performing BSTO deposition, and subsequently sintering the dielectric film so that the underlying metal film evaporates.

Abstract translation: 通过将两相BSTO / MgO混合到典型实验室级丙酮的碱溶液中，形成混合溶液，将两片铂片分离成混合溶液，从而制备可调谐的低电子损失陶瓷复合材料的多层共形涂层的方法 在作为电极的两个铂片上施加恒定的直流（DC）偏压，并使用磁力搅拌器搅拌以减少颗粒的沉降。 首先用绝缘衬底进行沉积，首先用导电膜Au涂覆它们，进行BSTO沉积，然后烧结电介质膜，使底层金属膜蒸发。

公开(公告)号：US6063719A

公开(公告)日：2000-05-16

申请号：US144982

申请日：1998-09-01

Applicant: Louise C. Sengupta ,  Somnath Sengupta

Inventor： Louise C. Sengupta ,  Somnath Sengupta

IPC: C04B35/26 ,  H01F1/03 ,  C04B35/468 ,  C04B35/47

CPC classification number: H01F1/0315 ,  C04B35/2683

Abstract: A novel ceramic ferrite/ferroelectric composite material having a low dissipation factor, voltage tunability, and proper impedance matching for the incident medium. The material comprises ferrites doped with the ferroelectric Barium Strontium Titanate (BSTO) or ferrites doped with the ferroelectric Barium Strontium Titanate (BSTO)/MgO. Preferred composites are magnesium ferrites doped with BSTO and magnesium ferrites doped with BSTO/MgO. Most particularly, the inventive composites are comprised of magnesium ferrites doped with Ba.sub.1-x Sr.sub.x TiO.sub.3 and magnesium ferrites doped with Ba.sub.1-x Sr.sub.x TiO.sub.3 /MgO, wherein x is greater than 0.00, but less than or equal to 0.75, and wherein the percent weight ratio of magnesium ferrite to BSTO or BSTO/MgO is 60 to 95 percent ferrite to 40 to 5 percent BSTO or 60 to 95 percent ferrite to 40 to 5 percent BSTO/MgO ferroelectric. A particularly well suited composite, i.e., one having a .mu./.di-elect cons. ratio close to unity, comprises 80 weight percent magnesium ferrite and 20 weight percent BSTO/MgO, wherein said BSTO/MgO comprises 80 weight percent Ba.sub.0.6 Sr.sub.0.4 TiO.sub.3 combined with 20 weight percent MgO.

Abstract translation: 一种新颖的陶瓷铁氧体/铁电复合材料，具有低的损耗因子，电压可调性和对入射介质的适当阻抗匹配。 该材料包括掺杂有铁电的钛酸钡锶（BSTO）的铁氧体或掺有铁电的锶钡（BSTO）/ MgO的铁氧体。 优选的复合材料是掺杂有BSTO的镁铁氧体和掺杂有BSTO / MgO的镁铁氧体。 最具体地，本发明的复合材料包括掺杂有Ba1-xSrxTiO3的镁铁氧体和掺杂有Ba1-xSrxTiO3 / MgO的镁铁氧体，其中x大于0.00，但小于或等于0.75，并且其中镁的百分比重量比 BSTO或BSTO / MgO的铁素体为铁素体为60〜95％，BSTO为40〜5％，铁素体为60〜95％，BSTO / MgO铁电体为40〜5％。 一种特别适合的复合材料，即一种接近一致的μ/ + 531比率的复合材料，包含80重量％的铁素体和20重量％的BSTO / MgO，其中所述BSTO / MgO包括80重量百分比的Ba0.6Sr0.4TiO3与 20重量％MgO。

公开(公告)号：US5846893A

公开(公告)日：1998-12-08

申请号：US569470

申请日：1995-12-08

Applicant: Somnath Sengupta ,  Louise Sengupta

Inventor： Somnath Sengupta ,  Louise Sengupta

IPC: C04B35/465 ,  C04B35/622 ,  C23C14/08 ,  C23C14/28 ,  H01Q3/44 ,  C04B35/46

CPC classification number: C23C14/28 ,  C04B35/465 ,  C04B35/62222 ,  C23C14/08 ,  H01Q3/44

Abstract: A thin film composite material comprises barium strontium titanate represented as Ba.sub.1-x Sr.sub.x TiO.sub.3 wherein x is greater than 0.0 but less than or equal to 0.75 and a magnesia-based compound such as MgZrO.sub.3, MgTiO.sub.3, MgAl.sub.2 O.sub.4 and mixtures thereof. The thin film ferroelectric composite is made using pulsed laser deposition and exhibits high tunability, low loss and a low dielectric constant.

Abstract translation: 薄膜复合材料包括表示为Ba1-xSrxTiO3的钛酸锶钡，其中x大于0.0但小于或等于0.75，并且包括镁基化合物如MgZrO 3，MgTiO 3，MgAl 2 O 4及其混合物。 薄膜铁电复合材料使用脉冲激光沉积制成，具有高可调性，低损耗和低介电常数。

公开(公告)号：US09311211B2

公开(公告)日：2016-04-12

申请号：US13407572

申请日：2012-02-28

Applicant: Swarup Chatterjee ,  Kallol Saha Chowdhury ,  Somnath Sengupta

Inventor： Swarup Chatterjee ,  Kallol Saha Chowdhury ,  Somnath Sengupta

IPC: G06F15/00 ,  G06F11/34 ,  G06F15/02

CPC classification number: G06F11/3409 ,  G06F11/3414 ,  G06F11/3452 ,  G06F15/02 ,  G06F15/0216

Abstract: Systems and methods related to performance measurement and reporting are described. In one method, a first application is profiled in a first profiling session to generate a first parameter dataset related to performance of segments of the first application. A session report is created based on the first parameter dataset. Further, based in part on the session report, comments for one or more of the segments of the application are received. A consolidated report is then generated based on the first parameter dataset and the comments.

Abstract translation: 描述与性能测量和报告相关的系统和方法。 在一种方法中，在第一分析会话中对第一应用进行概要分析以生成与第一应用的段的性能相关的第一参数数据集。 会话报告基于第一个参数数据集创建。 此外，部分基于会话报告，收到对应用程序的一个或多个部分的评论。 然后根据第一个参数数据集和注释生成综合报告。

公开(公告)号：US20050164664A1

公开(公告)日：2005-07-28

申请号：US11079311

申请日：2005-03-14

Applicant: Daniel DiFonzo ,  Kenneth Hersey ,  Ernest Ekelman ,  Shuguang Chen ,  Louise Sengupta ,  Somnath Sengupta ,  Thomas Scholl

Inventor： Daniel DiFonzo ,  Kenneth Hersey ,  Ernest Ekelman ,  Shuguang Chen ,  Louise Sengupta ,  Somnath Sengupta ,  Thomas Scholl

IPC: H04B1/06 ,  H04L12/56 ,  H04W16/28 ,  H04W88/02

CPC classification number: H04W16/28 ,  H04L45/00 ,  H04W88/02

Abstract: A mesh type wireless communication network includes a plurality of nodes, each node having at least one dynamically directionally controllable communications link, and a network controller for dynamically changing the direction of the controllable communications links of the nodes to enable transmission of signals between the nodes. A hub type wireless communication network includes a hub node having at least one dynamically directionally controllable communications link, a plurality of remote nodes, and a network controller for dynamically controlling the direction of the communications link to enable transmission of signals between the hub node and the remote nodes. A method for transmitting communications signals in a mesh network includes the steps of providing a plurality of nodes for receiving communications signals, each having at least one dynamically directionally controllable communications link, and dynamically changing the direction of the controllable communications links of the nodes to enable transmission of the communications signals between the nodes. A method for transmitting communications signals in a hub network includes the steps of providing a hub of node for receiving communications signals, the hub node having at least one dynamically directionally controllable communications link, providing a plurality of remote nodes for exchanging the communications signals with the hub node, and dynamically changing the direction of the controllable communications links of the hub node to enable transmission of the communications signals between the hub node and the remote nodes.

Abstract translation: 网状无线通信网络包括多个节点，每个节点具有至少一个动态方向可控通信链路，以及网络控制器，用于动态地改变节点的可控通信链路的方向，以实现节点之间的信号传输。 集线器类型无线通信网络包括具有至少一个动态方向可控通信链路的集线器节点，多个远程节点和网络控制器，用于动态地控制通信链路的方向，以实现集线器节点与集线器节点之间的信号传输 远程节点。 一种用于在网状网络中发送通信信号的方法包括以下步骤：提供用于接收通信信号的多个节点，每个节点具有至少一个动态定向可控通信链路，并且动态地改变节点的可控通信链路的方向以使能 在节点之间传输通信信号。 一种用于在集线器网络中发送通信信号的方法包括以下步骤：提供用于接收通信信号的节点集线器，集线器节点具有至少一个动态方向可控通信链路，提供多个远程节点用于与 集线器节点，并且动态地改变集线器节点的可控通信链路的方向，以实现集线器节点和远程节点之间的通信信号的传输。

公开(公告)号：US06876279B2

公开(公告)日：2005-04-05

申请号：US10068512

申请日：2002-02-06

Applicant: Louise Sengupta ,  Steven C. Stowell ,  Yongfei Zhu ,  Somnath Sengupta ,  Luna H. Chiu ,  Xubai Zhang

Inventor： Louise Sengupta ,  Steven C. Stowell ,  Yongfei Zhu ,  Somnath Sengupta ,  Luna H. Chiu ,  Xubai Zhang

IPC: B32B7/02 ,  H01P1/18 ,  H01P3/00 ,  H01P3/02 ,  H01P3/06 ,  H01P3/08 ,  H01P3/12 ,  H01P3/16 ,  H01P7/06 ,  H01Q3/44 ,  H05K1/02 ,  H05K1/16

CPC classification number: H05K1/162 ,  H01P1/181 ,  H01P3/003 ,  H01P3/06 ,  H01P3/081 ,  H01P3/088 ,  H01P3/122 ,  H01P7/06 ,  H01Q3/44 ,  H05K1/024 ,  H05K2201/0187 ,  H05K2201/037 ,  H05K2203/105 ,  H05K2203/171

Abstract: A tunable dielectric structure includes a first layer of dielectric material, a second layer of dielectric material positioned adjacent to the first layer of dielectric material, with the second layer of dielectric material having a dielectric constant that is less than the dielectric constant of the first layer of dielectric material, and electrodes for applying a controllable voltage across the first dielectric material, thereby controlling a dielectric constant of the first dielectric material, wherein at least one of the electrodes is positioned between the first and second layers of dielectric material. The dielectric materials can be formed in various shapes and assembled in various orientations with respect to each other. The tunable dielectric structure is used in various devices including coaxial cables, cavity antennas, microstrip lines, coplanar lines, and waveguides.

Abstract translation: 可调电介质结构包括第一介电材料层，邻近第一介电材料层定位的第二介电材料层，第二介电材料层的介电常数小于第一层的介电常数 以及用于在第一介电材料上施加可控电压的电极，从而控制第一介电材料的介电常数，其中至少一个电极位于第一和第二介电层之间。 介电材料可以形成为各种形状并且以各种取向相对于彼此组装。 可调电介质结构用于包括同轴电缆，空腔天线，微带线，共面线和波导在内的各种装置。