公开(公告)号：US20100315696A1

公开(公告)日：2010-12-16

申请号：US12485003

申请日：2009-06-15

Applicant: Chong U. Lee ,  John H. Hong ,  Marc M. Mignard

Inventor： Chong U. Lee ,  John H. Hong ,  Marc M. Mignard

IPC: G02B26/02 ,  G01R31/02

CPC classification number: G02B26/001 ,  G09G3/3466 ,  G09G2320/0693

Abstract: Methods and devices for calibrating and controlling the actuation of an analog interferometric modulator configured to have a plurality of actuation states. Devices and methods for calibrating an analog interferometric modulator to respond in linear relation to an applied voltage.

Abstract translation: 用于校准和控制被配置为具有多个致动状态的模拟干涉式调制器的致动的方法和装置。 用于校准模拟干涉式调制器以与施加的电压成线性关系的装置和方法。

公开(公告)号：US20100172409A1

公开(公告)日：2010-07-08

申请号：US12349406

申请日：2009-01-06

Applicant: Yuriy Reznik ,  Ravi Kiran Chivukula ,  John H. Hong ,  Chong U. Lee

Inventor： Yuriy Reznik ,  Ravi Kiran Chivukula ,  John H. Hong ,  Chong U. Lee

IPC: H04N7/30 ,  G06K9/46

CPC classification number: G06F17/147 ,  H04N19/122 ,  H04N19/14 ,  H04N19/147 ,  H04N19/176 ,  H04N19/30 ,  H04N19/61

Abstract: This disclosure describes the use of non-dyadic discrete cosine transform (DCT) sizes for performing a DCT. Similarly, this disclosure describes the use of non-dyadic inverse discrete cosine transform (IDCT) sizes for performing an IDCT. Using non-dyadic transform sizes may be less computationally expensive compared to using conventional dyadic transform sizes. Aspects of this disclosure may be useful in any device or system that performs a DCT or IDCT.

Abstract translation: 本公开描述了使用非二次离散余弦变换（DCT）尺寸来执行DCT。 类似地，本公开描述了使用非二次逆离散余弦变换（IDCT）大小来执行IDCT。 与使用常规二进制变换大小相比，使用非二进制变换大小可能计算成本较低。 本公开的方面在用于执行DCT或IDCT的任何设备或系统中可能是有用的。

公开(公告)号：US06768380B2

公开(公告)日：2004-07-27

申请号：US10269351

申请日：2002-10-11

Applicant: John H. Hong ,  Jinho Jeong ,  Won Ko ,  Nyuntae Kim ,  Youngwoo Kwon ,  Kyushik Hong ,  John Hyunchul Hong

Inventor： John H. Hong ,  Jinho Jeong ,  Won Ko ,  Nyuntae Kim ,  Youngwoo Kwon ,  Kyushik Hong ,  John Hyunchul Hong

IPC: H03F360

CPC classification number: H03F3/607

Abstract: A variable bandwidth, distributed amplifier circuit includes an input transmission line; an output transmission line; and a plurality of amplifier cells having a respective plurality of cell inputs distributed along the input transmission line and cell outputs distributed along said output transmission line. Each amplifier cell comprises a cascode amplifier having an input transistor, an output transistor, and a variable impedance device in a circuit branch coupled to a gate of the output transistor. The impedance of the variable impedance device is responsive to a variable bias control signal.

Abstract translation: 可变带宽分布式放大器电路包括输入传输线; 输出传输线; 以及多个放大器单元，具有沿输入传输线分布的相应多个单元输入和沿着所述输出传输线分布的单元输出。 每个放大器单元包括共源共栅放大器，其具有耦合到输出晶体管的栅极的电路支路中的输入晶体管，输出晶体管和可变阻抗器件。 可变阻抗器件的阻抗响应于可变偏置控制信号。

公开(公告)号：US5663736A

公开(公告)日：1997-09-02

申请号：US359268

申请日：1994-12-19

Applicant: Lance L. Webb ,  John H. Hong

Inventor： Lance L. Webb ,  John H. Hong

IPC: H01Q3/26 ,  H01Q3/46 ,  H01Q3/22

CPC classification number: H01Q3/2682 ,  H01Q3/2676 ,  H01Q3/46

Abstract: In a broad aspect the present invention comprises a multiple element, multi-throw electronic switch for a fiber optical cable network. The multiple element, multi-throw electronic switch includes a bulk media optical deflector angularly controllable by selectable electronic steering signals. At least one multiple element, multi-throw electronic switch is use to construct a true time delay shifter using rows of a plurality of columns of a plurality of beamsteering optical fiber delay lines, all with a specified antenna scanning coherence center.Distributed beamsteering is performed by selecting from the composite array, subarrays for which a common steering direction cosine can be applied to that subarray. The distributed beamforming is performed by combining elements beamsteered with a common antenna scanning coherence center from an electronically small core fibers with limited available modes into larger core multimode fibers. The distributed beamsteering and distributed beamforming is iterated until all antenna elements in the composite array have been beamsteered into an array with the identical specified antenna scanning coherence center.The bulk media optical deflector angularly controllable by selectable electronic steering signals has the additional advantage that a plurality of squint-free antenna beamsteering commands can be simultaneously implemented providing a frequency-independent means of antenna beam shaping which necessary for a frequency-independent monopulse processing capability.

Abstract translation: 在广泛的方面，本发明包括用于光纤光缆网络的多元素多掷电子开关。 多元素多掷电子开关包括通过可选择的电子转向信号成角度地控制的大容量介质光学偏转器。 使用至少一个多元素多掷电子开关来构造使用多个波束导向光纤延迟线的多列的行的真实时间延迟移位器，全部具有指定的天线扫描相干中心。 通过从复合阵列中选择可以对该子阵列应用公共转向方向余弦的子阵列来执行分布式波束导向。 分布式波束形成通过将从具有有限可用模式的电子小芯光纤的公共天线扫描相干中心导向的元件组合成较大的核心多模光纤来执行。 迭代分布式波束导向和分布式波束形成，直到复合阵列中的所有天线元件已经被束缚为具有相同指定天线扫描相干中心的阵列。 通过可选择的电子转向信号角度控制的大容量媒体光学偏转器具有附加的优点，即可以同时实现多个无眩光的天线波束控制命令，从而提供频率无关的单脉冲处理能力所需的天线波束整形的频率无关的装置 。

公开(公告)号：US5315423A

公开(公告)日：1994-05-24

申请号：US837019

申请日：1992-02-18

Applicant: John H. Hong

Inventor： John H. Hong

IPC: G02B6/34 ,  H04B10/135 ,  H04J14/02 ,  H04Q11/00 ,  H04J14/00

CPC classification number: G02B6/29323 ,  G02B6/29325 ,  H04B10/25 ,  H04J14/02 ,  H04Q11/0003

Abstract: An apparatus and method are provided for transmitting two-dimensional images through a single mode optical fiber. Light from a broadband source is dispersed into component wavelengths, spatially modulated to contain an image, collected for multiplexing in a single mode optical transmission fiber, transmitted through the single mode fiber, and demultiplexed into its component wavelengths to reproduce the transmitted image. The two-dimensional dispersing and collecting elements may be realized using thin film channel waveguides having arrays of optical gratings. Because the dispersive element at the receiving (output) end of the transmission fiber must reproduce the dispersal pattern used at the source, the information transmitting device may be used for data encryption and decryption.

Abstract translation: 提供了一种通过单模光纤传输二维图像的装置和方法。 来自宽带源的光被分散到分量波长中，空间调制以包含图像，通过单模光纤传输的单模光纤中进行多路复用，并分解成其分量波长，以再现传输图像。 可以使用具有光栅阵列的薄膜通道波导来实现二维分散和收集元件。 由于传输光纤的接收（输出）端的色散元件必须重现源头所使用的扩散模式，所以信息传输设备可用于数据加密和解密。

公开(公告)号：US09530073B2

公开(公告)日：2016-12-27

申请号：US13090180

申请日：2011-04-19

Applicant: Onur C. Hamsici ,  John H. Hong ,  Yuriy Reznik ,  Sundeep Vaddadi ,  Chong Uk. Lee

Inventor： Onur C. Hamsici ,  John H. Hong ,  Yuriy Reznik ,  Sundeep Vaddadi ,  Chong Uk. Lee

IPC: G06K9/00 ,  G06K9/46

CPC classification number: G06K9/4671

Abstract: A local feature descriptor for a point in an image is generated over multiple levels of an image scale space. The image is gradually smoothened to obtain a plurality of scale spaces. A point may be identified as the point of interest within a first scale space from the plurality of scale spaces. A plurality of image derivatives is obtained for each of the plurality of scale spaces. A plurality of orientation maps is obtained (from the plurality of image derivatives) for each scale space in the plurality of scale spaces. Each of the plurality of orientation maps is then smoothened (e.g., convolved) to obtain a corresponding plurality of smoothed orientation maps. Therefore, a local feature descriptor for the point may be generated by sparsely sampling a plurality of smoothed orientation maps corresponding to two or more scale spaces from the plurality of scale spaces.

Abstract translation: 图像中的一个点的局部特征描述符是通过图像比例空间的多个级别生成的。 图像逐渐平滑以获得多个刻度空间。 点可以被识别为来自多个刻度空间的第一刻度空间内的兴趣点。 为多个刻度空间中的每一个获得多个图像导数。 对于多个刻度空间中的每个刻度空间，获得多个取向图（来自多个图像衍生）。 然后对多个取向图中的每一个进行平滑（例如，卷积）以获得相应的多个平滑取向图。 因此，可以通过从多个比例空间中稀疏采样对应于两个或更多比例空间的多个平滑取向图来生成该点的局部特征描述符。

公开(公告)号：US09476830B2

公开(公告)日：2016-10-25

申请号：US11944264

申请日：2007-11-21

Applicant: Periklis Pantazis ,  Ye Pu ,  Demetri Psaltis ,  John H. Hong ,  Scott E. Fraser

Inventor： Periklis Pantazis ,  Ye Pu ,  Demetri Psaltis ,  John H. Hong ,  Scott E. Fraser

IPC: B82Y15/00 ,  G01N21/63 ,  B82Y20/00 ,  G02F1/37

CPC classification number: G01N33/483 ,  A61B5/0075 ,  A61K49/0002 ,  B82Y5/00 ,  B82Y15/00 ,  B82Y20/00 ,  G01N21/636 ,  G02F1/37 ,  G06K9/00134

Abstract: Second harmonic nanoprobes for imaging biological samples and a method of using such probes to monitor the dynamics of biological process using a field resonance enhanced second harmonic (FRESH) technique are provided. The second harmonic generating (SHG) nanoprobes are comprised of various kinds of nanocrystals that do not possess an inversion symmetry and therefore are capable of generating second harmonic signals that can then be detected by conventional two-photon microscopy for in vivo imaging of biological processes and structures such as cell signaling, neuroimaging, protein conformation probing, DNA conformation probing, gene transcription, virus infection and replication in cells, protein dynamics, tumor imaging and cancer therapy evaluation and diagnosis as well as quantification in optical imaging.

Abstract translation: 提供了用于成像生物样品的二次谐波纳米探针和使用这种探针来监测使用场共振增强二次谐波（FRESH）技术的生物过程动力学的方法。 二次谐波产生（SHG）纳米探针由不具有反转对称性的各种纳米晶体组成，因此能够产生二次谐波信号，然后可以通过传统的双光子显微镜检测生物过程的体内成像， 结构如细胞信号传导，神经成像，蛋白质构象探索，DNA构象探索，基因转录，细胞中的病毒感染和复制，蛋白质动力学，肿瘤成像和癌症治疗评估和诊断以及光学成像中的定量。

公开(公告)号：US09036925B2

公开(公告)日：2015-05-19

申请号：US13312335

申请日：2011-12-06

Applicant: Sundeep Vaddadi ,  Onur C. Hamsici ,  Yuriy Reznik ,  John H. Hong ,  Chong U. Lee

Inventor： Sundeep Vaddadi ,  Onur C. Hamsici ,  Yuriy Reznik ,  John H. Hong ,  Chong U. Lee

IPC: G06K9/62 ,  G06K9/54 ,  G06K9/60 ,  G06F17/30

CPC classification number: G06F17/30247 ,  G06K9/62 ,  G06K9/627

Abstract: Techniques are disclosed for performing robust feature matching for visual search. An apparatus comprising an interface and a feature matching unit may implement these techniques. The interface receives a query feature descriptor. The feature matching unit then computes a distance between a query feature descriptor and reference feature descriptors and determines a first group of the computed distances and a second group of the computed distances in accordance with a clustering algorithm, where this second group of computed distances comprises two or more of the computed distances. The feature matching unit then determines whether the query feature descriptor matches one of the reference feature descriptors associated with a smallest one of the computed distances based on the determined first group and second group of the computed distances.

Abstract translation: 公开了用于执行用于视觉搜索的鲁棒特征匹配的技术。 包括接口和特征匹配单元的装置可以实现这些技术。 接口接收查询特征描述符。 特征匹配单元然后计算查询特征描述符和参考特征描述符之间的距离，并且根据聚类算法确定计算出的距离的第一组和所计算的距离的第二组，其中该第二组计算距离包括两个 或更多的计算距离。 特征匹配单元然后基于所确定的计算出的距离的第一组和第二组来确定查询特征描述符是否与与计算出的距离中的最小一个相关联的参考特征描述符之一匹配。

公开(公告)号：US20120027290A1

公开(公告)日：2012-02-02

申请号：US13193294

申请日：2011-07-28

Applicant: Pawan Kumar Baheti ,  Sundeep Vaddadi ,  Ashwin Swaminathan ,  Yuriy Reznik ,  Onur C. Hamsici ,  Murali Ramaswamy Chari ,  John H. Hong ,  Chong Uk Lee

Inventor： Pawan Kumar Baheti ,  Sundeep Vaddadi ,  Ashwin Swaminathan ,  Yuriy Reznik ,  Onur C. Hamsici ,  Murali Ramaswamy Chari ,  John H. Hong ,  Chong Uk Lee

IPC: G06K9/62

CPC classification number: G06K9/6857 ,  G06K9/4671

Abstract: In one example, an apparatus includes a processor configured to extract a first set of one or more keypoints from a first set of blurred images of a first octave of a received image, calculate a first set of one or more descriptors for the first set of keypoints, receive a confidence value for a result produced by querying a feature descriptor database with the first set of descriptors, wherein the result comprises information describing an identity of an object in the received image, and extract a second set of one or more keypoints from a second set of blurred images of a second octave of the received image when the confidence value does not exceed a confidence threshold. In this manner, the processor may perform incremental feature descriptor extraction, which may improve computational efficiency of object recognition in digital images.

Abstract translation: 在一个示例中，设备包括处理器，其被配置为从接收到的图像的第一个八度音阶的第一组模糊图像中提取一个或多个关键点的第一组，计算第一组的一个或多个描述符 关键点，通过用第一组描述符查询特征描述符数据库而产生的结果的置信度值，其中结果包括描述接收到的图像中的对象的身份的信息，并且从一个或多个关键点中提取一个或多个关键点的第二组 当置信度值不超过置信度阈值时，接收图像的第二倍频程的第二组模糊图像。 以这种方式，处理器可以执行增量特征描述符提取，这可以提高数字图像中对象识别的计算效率。

公开(公告)号：US20110255143A1

公开(公告)日：2011-10-20

申请号：US13169947

申请日：2011-06-27

Applicant: Chong U. Lee ,  John H. Hong ,  Marc M. Mignard ,  Alok Govil

Inventor： Chong U. Lee ,  John H. Hong ,  Marc M. Mignard ,  Alok Govil

IPC: G02B26/00

CPC classification number: G02B26/001 ,  G09G3/3466 ,  G09G2320/0693

Abstract: Methods and devices for calibrating and controlling the actuation of an analog interferometric modulator configured to have a plurality of actuation states. Devices and methods for calibrating an analog interferometric modulator to respond in linear relation to an applied voltage.

Abstract translation: 用于校准和控制被配置为具有多个致动状态的模拟干涉式调制器的致动的方法和装置。 用于校准模拟干涉式调制器以与施加的电压成线性关系的装置和方法。