公开(公告)号：US20110058470A1

公开(公告)日：2011-03-10

申请号：US12637624

申请日：2009-12-14

申请人： Kyung Hi CHANG ,  Jong Hun Kim ,  Young Bum Kim

发明人： Kyung Hi CHANG ,  Jong Hun Kim ,  Young Bum Kim

IPC分类号： H04J11/00

CPC分类号： H04L27/2647 ,  H04L27/2626

摘要： Disclosed herein is a ranging apparatus and method. The ranging apparatus includes a correlation unit for correlating OFDMA reception signals with inverse fast Fourier transformed ranging codes, and outputting correlation result values. A threshold determination unit determines a threshold value depending on characteristics of the reception signals. A comparison unit estimates a delay time by selecting a maximum value from among the correlation result values, and detects a ranging code by comparing the maximum value with the threshold value, and then outputs and feeds back the ranging code and the delay time when the maximum value is equal to or greater than the threshold value. A weight multiplication unit delays the ranging code by the delay time, multiplies a weight by the delayed ranging code, and outputs a resulting value. A calculation unit subtracts the resulting value from the reception signals, and provides adjusted reception signals.

摘要翻译： 本文公开了测距装置和方法。 测距装置包括：相关单元，用于将OFDMA接收信号与快速傅立叶逆变换的测距码相反，并输出相关结果值。 阈值确定单元根据接收信号的特性确定阈值。 比较单元通过从相关结果值中选择最大值来估计延迟时间，并通过将最大值与阈值进行比较来检测测距码，然后输出并反馈测距码和延迟时间，当最大值 值等于或大于阈值。 加权乘法单元将测距码延迟延迟时间，将权重乘以延迟的测距码，并输出结果值。 计算单元从接收信号中减去所得到的值，并提供经调整的接收信号。

公开(公告)号：US07877109B2

公开(公告)日：2011-01-25

申请号：US11755277

申请日：2007-05-30

申请人： Tae In Hyon ,  Jae Myoung Kim ,  Jae Hak Chung ,  Sang Jo Yoo ,  Yang Soo Kwon

发明人： Tae In Hyon ,  Jae Myoung Kim ,  Jae Hak Chung ,  Sang Jo Yoo ,  Yang Soo Kwon

IPC分类号： H04B7/00 ,  H04Q11/12

CPC分类号： H04W72/085 ,  H04W16/14 ,  H04W52/143 ,  H04W52/241 ,  H04W52/367

摘要： A method and apparatus of controlling a transmission power of a cognitive radio (CR) environment, the method including: sensing an incumbent user that uses a same channel as the CR environment; detecting signal quality information of the sensed incumbent user; calculating, using the detected signal quality information, a maximum transmission power value that corresponds to a maximum transmission power that may be transmitted by a CR base station in the CR environment; and controlling a communication of the CR environment to be performed within the calculated maximum transmission power value.

摘要翻译： 一种控制认知无线电（CR）环境的传输功率的方法和装置，所述方法包括：感测使用与CR环境相同的信道的现任用户; 检测感测到的在职用户的信号质量信息; 使用所检测的信号质量信息，计算与CR环境中的CR基站可以发送的最大发送功率对应的最大发送功率值; 以及控制在所计算的最大发送功率值内执行的CR环境的通信。

公开(公告)号：US20100319867A1

公开(公告)日：2010-12-23

申请号：US12869465

申请日：2010-08-26

申请人： Jae-Hwan Kim

发明人： Jae-Hwan Kim

IPC分类号： D21F11/00

CPC分类号： H01L41/193 ,  H01L41/094 ,  H01L41/0986 ,  Y10S310/80 ,  Y10T29/42

摘要： This invention relates to biomimetic electro-active paper actuators which are ultra lightweight, have a large deformation feature, are operated with low power consumption, are remotely driven by microwaves, and have suitable response speed, which are comprised of paper wherein micro fibrils of cellulose are arranged in a predetermined direction, electrodes which are deposited on both sides of the paper, a film rectenna which receives an electric field from outside and converts it into direct power, and a PAD logic circuit (power allocation & distribution) which receives a signal of direct power and converts/controls it into power force.

摘要翻译： 本发明涉及超轻质，具有较大变形特征的仿生电动纸致动器，具有低功耗操作，由微波远程驱动，并且具有合适的响应速度，其由纸构成，其中纤维素的微纤维 被布置在预定方向上，沉积在纸的两侧的电极，从外部接收电场并将其转换为直接电力的膜整流天线以及接收信号的PAD逻辑电路（功率分配和分配） 的直接力量，并转换/控制它成为动力。

公开(公告)号：US07856128B2

公开(公告)日：2010-12-21

申请号：US11639454

申请日：2006-12-14

申请人： Hak Il Kim ,  Young Chan Han

发明人： Hak Il Kim ,  Young Chan Han

IPC分类号： G06K9/00

CPC分类号： G06K9/00067 ,  G06K9/3275

摘要： A method of correcting distortion caused by fingerprint input sensors of heterogeneous fingerprint recognition systems. The method includes a first step of fabricating a measurement pattern for measuring resolutions of a fingerprint input sensor, a second step of measuring image resolutions of an image, acquired by the fingerprint input sensor, using the fabricated measurement pattern for predetermined locations and directions, a third step of designing control lines for compensating for the distortion caused by the fingerprint input sensor, based on the measured resolutions, a fourth step of obtaining average horizontal and vertical resolutions of the acquired image, a fifth step of modeling the control lines based on a ratio of the average horizontal resolution to the vertical average resolution, and a sixth step of compensating for the distortion of the acquired image based on results of the modeling.

摘要翻译： 一种校正由异质指纹识别系统的指纹输入传感器引起的失真的方法。 该方法包括：制造用于测量指纹输入传感器的分辨率的测量图案的第一步骤，使用所制造的测量图案预定位置和方向来测量由指纹输入传感器获取的图像的图像分辨率的第二步骤， 基于测量分辨率设计用于补偿由指纹输入传感器引起的失真的控制线的第三步骤，获得所获取的图像的平均水平和垂直分辨率的第四步骤，基于 平均水平分辨率与垂直平均分辨率的比率，以及基于建模结果补偿所获取图像的失真的第六步骤。

公开(公告)号：US20100238316A1

公开(公告)日：2010-09-23

申请号：US12704291

申请日：2010-02-11

申请人： Ji-Hye KIM ,  Sung-Dae Cho ,  Min-Kyu Park ,  Hee-Chan Park ,  Jin-Ho Kim ,  Yun-Je Oh ,  Kyoung-Tae Kim ,  Choon-Woo Kim ,  Seul-Ki Jang

发明人： Ji-Hye KIM ,  Sung-Dae Cho ,  Min-Kyu Park ,  Hee-Chan Park ,  Jin-Ho Kim ,  Yun-Je Oh ,  Kyoung-Tae Kim ,  Choon-Woo Kim ,  Seul-Ki Jang

IPC分类号： H04N9/73 ,  G06K9/00

CPC分类号： H04N9/735

摘要： An image classification apparatus and method for Automatic White Balance (AWB) are provided. An input image is divided into blocks including pluralities of pixels. A hue value and a chroma value are calculated for each of the blocks. A color-changed block is detected by calculating, for each one of the blocks, differences between the hue and chroma values calculated for all blocks adjacent to the one of the blocks and the hue and chroma values calculated for the one of the blocks. A hue variance and a chroma variance are calculated for the entire input image if a number of the detected color-changed blocks is greater than or equal to a first threshold. The input image is determined as a non-monochromatic image, if the hue variance is greater than or equal to a second threshold or the chroma variance is greater than or equal to a third threshold.

摘要翻译： 提供了一种用于自动白平衡（AWB）的图像分类装置和方法。 输入图像被分成包括多个像素的块。 为每个块计算色调值和色度值。 通过针对每个块计算针对与该一个块相邻的所有块计算的色调和色度值之间的差异以及为该块中的一个块计算的色调和色度值来检测颜色变化块。 如果检测到的颜色变化块的数量大于或等于第一阈值，则针对整个输入图像计算色调方差和色度方差。 如果色调方差大于或等于第二阈值或色度方差大于或等于第三阈值，则输入图像被确定为非单色图像。

公开(公告)号：US07755821B2

公开(公告)日：2010-07-13

申请号：US11912314

申请日：2007-03-07

申请人： Byoung Seung Ham

发明人： Byoung Seung Ham

IPC分类号： G02F3/00

CPC分类号： B82Y10/00 ,  G02F3/00 ,  G06E1/00 ,  G06N99/002

摘要： A system, method, and apparatus for photon logic gates based on quantum switch, where a single or multiple quantum switches are utilized for dark resonance interactions in which three-color lasers interact with a four-level or five-level nonlinear optical medium composed of three ground states and one or two excited states through nondegenerate four-wave mixing processes. The photon logic mechanism is based on combination of single or multiple dark resonance-induced two-photon coherence swapping among the three closely spaced ground states through optical transitions via a common excited state. The two-photon coherence induced on the ground states is optically detected via nondegenerate four-wave mixing processes. The nondegenerate four-wave mixing generation is enhanced owing to dark resonance or electromagnetically induced transparency. The gating time and bandwidth of the present photon logic gate method is not limited by population relaxation time or carrier's lifetime, but phase decay time, where the phase decay time in general much faster than the population decay time in solids or semiconductors.

摘要翻译： 一种用于基于量子开关的光子逻辑门的系统，方法和装置，其中单个或多个量子开关用于暗谐振相互作用，其中三色激光与四级或五级非线性光学介质相互作用，该四级或五级非线性光学介质由 三个基态和一个或两个激发态通过非衰变四波混合过程。 光子逻辑机制基于通过共同激发态的光学跃迁在三个紧密间隔的基态中的单个或多个暗谐振诱导的双光子相干交换的组合。 通过非衰变四波混合过程光学检测在基态诱发的双光子相干性。 由于暗谐振或电磁感应透明度，非衰减四波混频产生得到增强。 本光子逻辑门法的门控时间和带宽不受群体弛豫时间或载波寿命的限制，但相位衰减时间通常比固体或半导体中的群体衰减时间快得多。

公开(公告)号：US07746941B2

公开(公告)日：2010-06-29

申请号：US11585233

申请日：2006-10-24

申请人： Kyung Hi Chang ,  Jeong Ho Roh ,  Tae Hyoung Sun

发明人： Kyung Hi Chang ,  Jeong Ho Roh ,  Tae Hyoung Sun

IPC分类号： H04K1/10 ,  H04L27/28 ,  H04L7/00

CPC分类号： H04L27/2662 ,  H04L27/2605 ,  H04L27/2656 ,  H04L27/2676

摘要： Provided are a synchronization apparatus and method for improving timing estimation performance in an OFDM-FDMA/CDMA/TDMA system, which can correctly estimate symbol timing through a more correct timing metric using a guard interval of a preamble. The synchronization apparatus includes an auto-correlator for calculating an auto-correlation value of a received signal and a signal delayed by a predetermined time, a power detector for calculating power of the received signal, a timing metric/normalizer for normalizing the auto-correlation value by dividing the auto-correlation value by the calculated power to obtain a timing metric, and a peak detector for finding a peak value of the timing metric to estimate a frame starting position and an initial symbol timing. The auto-correlator calculates an auto-correlation length as long as a length of a guard interval, considering the preamble characteristic that the patterns are repeated in the time domain. The initial symbol timing is set to a position determined by adding the position where the timing metric has a peak value to the length of the guard interval and subtracting the maximum value of the expected channel delay spread from the result value.

摘要翻译： 提供了一种用于改善OFDM-FDMA / CDMA / TDMA系统中的定时估计性能的同步装置和方法，其可以使用前导码的保护间隔通过更正确的定时度量来正确地估计符号定时。 同步装置包括：自动相关器，用于计算接收信号的自相关值和延迟预定时间的信号;功率检测器，用于计算接收信号的功率;定时度量/归一化器，用于归一化自相关 通过将所述自相关值除以所计算的功率以获得定时度量;以及峰值检测器，用于求出用于估计帧开始位置和初始符号定时的所述定时度量的峰值。 考虑到在时域中重复模式的前导码特征，自相关器计算自动相关长度与保护间隔的长度一样长。 将初始符号定时设置为通过将定时度量具有峰值的位置与保护间隔的长度相加而确定的位置，并从结果值减去预期信道延迟扩展的最大值。

公开(公告)号：US07733342B2

公开(公告)日：2010-06-08

申请号：US11593984

申请日：2006-11-06

申请人： Taejung Kim ,  Tae-Yoon Lee

发明人： Taejung Kim ,  Tae-Yoon Lee

IPC分类号： G06T15/50 ,  G06K9/00

CPC分类号： G06T7/60 ,  G06T7/70

摘要： Disclosed herein is a method of extracting three-dimensional building information using shadow analysis. In the method, an image of a building captured through a manmade satellite, an airplane or some other means, and metadata to be used for extraction of building information is received, the azimuth and altitude angles of a sun in an area of capture, and the azimuth and altitude angles of a camera are calculated. The contour of the roof of the building, the location and height of which are desired to be obtained, is extracted from the image. A height value is assigned to the extracted contour of the roof of the building, and the height value is adjusted until the assigned height value satisfies a predetermined condition. The vertical line and shadow of the building, which are based on the height value, is projected onto the image. The location of the building is extracted using the height value and vertical line of the building if the location of the projected shadow coincides with the location of the shadow of the building.

摘要翻译： 本文公开了使用阴影分析提取三维建筑物信息的方法。 在该方法中，接收通过人造卫星，飞机或某些其他装置捕获的建筑物的图像以及用于提取建筑物信息的元数据，捕获区域中的太阳的方位角和高度角，以及 计算摄像机的方位角和高度角。 从图像中提取建筑物屋顶的轮廓，其位置和高度希望获得。 将高度值分配给建筑物的屋顶的提取轮廓，并且调整高度值直到分配的高度值满足预定条件。 基于高度值的建筑物的垂直线和阴影投影到图像上。 如果投影阴影的位置与建筑物阴影的位置一致，则使用建筑物的高度值和垂直线提取建筑物的位置。

公开(公告)号：US20100134787A1

公开(公告)日：2010-06-03

申请号：US12511803

申请日：2009-07-29

申请人： Kyoungheon Kim ,  Seunghwan Kim ,  Seounghun Lee ,  Elhang Lee

发明人： Kyoungheon Kim ,  Seunghwan Kim ,  Seounghun Lee ,  Elhang Lee

IPC分类号： G01N21/00 ,  G01B9/02 ,  G06F15/00

CPC分类号： G01M11/335 ,  G01M11/331 ,  G01M11/338

摘要： The present invention relates to a measurement method of the chromatic dispersion of an optical waveguide using an optical interferometer with a broadband multi-wavelength light source and an optical spectrum analyzing apparatus, wherein one arm, called “reference arm” of the interferometer's two arms has an adjustable air spacing and the other arm, called “sample arm” can contain said optical waveguide to be measured, and including the following measurement and analysis steps: measuring interference spectra of the optical beam output exiting from the said interferometer with an optical spectrum analyzing apparatus when said optical waveguide is connected to said sample arm, and when said optical waveguide is not connected to said sample arm respectively; by adjusting the reference arm length for appearance of clear interference patterns; converting the wavelength-domain interference spectra into frequency-domain interference spectra and calculating phase difference values of the interference peaks of one of the spectra from a predetermined reference peak as a function of the frequency change by counting the interference peak (or valley) points; finding a Taylor series curve fit function for each set of the phase difference value data corresponding to each of the two interference spectra; and calculating a chromatic dispersion coefficient of the optical waveguide by using the coefficients of the Taylor series curve fit functions.

摘要翻译： 本发明涉及使用具有宽带多波长光源的光学干涉仪和光谱分析装置的光波导的色散的测量方法，其中干涉仪的两个臂的称为“参考臂”的一个臂具有 称为“样品臂”的可调节空气间距可以包含待测量的所述光波导，并且包括以下测量和分析步骤：测量从所述干涉仪离开的光束输出的干涉光谱与光谱分析 当所述光波导连接到所述样品臂时，并且当所述光波导分别不连接到所述样品臂时， 通过调整参考臂的长度来显现干扰图形的清晰度; 将波长域干涉光谱转换成频域干涉光谱，并通过对干扰峰（或谷）点进行计数，计算作为频率变化的函数的来自预定参考峰的一个频谱的干扰峰的相位差值; 针对与两个干涉光谱中的每一个相对应的每组相位差值数据，找到泰勒级数曲线拟合函数; 以及通过使用泰勒级数曲线拟合函数的系数来计算光波导的色散系数。

公开(公告)号：US20100034007A1

公开(公告)日：2010-02-11

申请号：US12274639

申请日：2008-11-20

申请人： Byoung Seung Ham

发明人： Byoung Seung Ham

IPC分类号： G11C13/00 ,  G11C13/04

CPC分类号： G11C13/04 ,  B82Y10/00 ,  G06N99/002 ,  G11B7/0045

摘要： The present invention provides a quantum optical data storage protocol, whose storage time is lengthened by spin population decay time from several minutes to several hours. The quantum data storage includes a first ground state and a second ground state which are closely spaced each other in energy level or degenerated and to forbid two-photon transitions between the first and second ground states; an excited state which has a spin inhomogeneous broadening and to allow two-photon transitions between the first ground state and the second ground sate via the excited state and allow a spin coherence; an auxiliary state for forbidding two-photon transitions between the first and second ground states via the auxiliary state and allowing a transition from/to the excited state; wherein a spin coherence induced by a transition of two photons from the first ground state and the second state to the excited state is transited to the auxiliary state so that a phase decay of the spin coherence is prevented and data is stored as the phase of the spin coherence.

摘要翻译： 本发明提供了一种量子光学数据存储协议，其存储时间由几分钟到数小时的旋转群体衰减时间延长。 量子数据存储器包括第一基态和第二基态，其在能量级或退化状态彼此紧密隔开，并且禁止第一和第二基态之间的双光子跃迁; 具有自旋非均匀变宽并且经由激发态允许第一基态和第二基态之间的双光子跃迁并且允许自旋相干的激发态; 辅助状态，用于经由辅助状态禁止第一和第二基态之间的双光子跃迁，并允许从激发态转换到激发态; 其中由两个光子从第一基态和第二状态转变为激发态的自旋相干被转换到辅助状态，从而防止自旋相干的相位衰减，并且数据被存储为 旋转一致性。