公开(公告)号：US20100073059A1

公开(公告)日：2010-03-25

申请号：US12585680

申请日：2009-09-22

Applicant: Kwan-yeob Chae ,  Su-ho Kim ,  Won Lee ,  Sang-hoon Joo ,  Dharmendra Pandit ,  Jong-ryun Choi

Inventor： Kwan-yeob Chae ,  Su-ho Kim ,  Won Lee ,  Sang-hoon Joo ,  Dharmendra Pandit ,  Jong-ryun Choi

IPC: H03K3/017

CPC classification number: H03K5/1565 ,  H03K2005/00058

Abstract: A duty control circuit including a clock input unit connected to a first node and a second node, the clock input unit receiving an input clock signal through the first node and changing a voltage of the second node to one of a first voltage level and a second voltage level in response to respective low and high logic levels of the input clock signal, a slew controller connected to the second node, the slew controller including one or more switches controlled by respective control signals, the one or more switches providing one of the first voltage level and the second voltage level to the second node in response to the control signals such that a slew rate of a signal at the second node is varied, and a clock output unit, the clock output unit outputting an output clock signal having a duty that varies.

Abstract translation: 一种占空比控制电路，包括连接到第一节点和第二节点的时钟输入单元，时钟输入单元通过第一节点接收输入时钟信号，并将第二节点的电压改变为第一电压电平和第二节点之一 响应于输入时钟信号的相应低和高逻辑电平的电压电平，连接到第二节点的转换控制器，所述转换控制器包括由相应控制信号控制的一个或多个开关，所述一个或多个开关提供第一 电压电平和第二电压电平响应于控制信号，使得第二节点处的信号的转换速率改变;以及时钟输出单元，时钟输出单元输出具有占空比的输出时钟信号 不一样。

公开(公告)号：US20080056419A1

公开(公告)日：2008-03-06

申请号：US11805239

申请日：2007-05-22

Applicant: Soon Lee ,  Kwan Kim ,  Young Park ,  Won Lee ,  Hae Park

Inventor： Soon Lee ,  Kwan Kim ,  Young Park ,  Won Lee ,  Hae Park

IPC: H04L7/00

CPC classification number: H04L7/0337 ,  H04B1/71632 ,  H04B1/71635 ,  H04B1/71637 ,  H04L7/048 ,  H04W56/0085 ,  Y02D70/10

Abstract: An impulse radio-based ultra wideband communication system, using an ultra wideband impulse and a 1-bit high-speed digital sampler, includes a transmitting RF module, a receiving RF module, a signal recovery unit, a transmitting signal processor, a receiving signal processor, and an ultra wideband antenna. The transmitting RF module includes an integrated impulse generator capable of implementing on-off-keying modulation and pulse position modulation, and an amplifier for amplifying output of the integrated impulse generator. The receiving RF module includes a two stage envelope detector for detecting a received signal and a comparator for converting the detected signal into a rectangular pulse. The signal recovery unit restores the signal from the receiving RF module to a digital signal using the 1-bit digital sampler. The signal processor includes a receiving signal processor for synchronizing the digital signal and decoding the detected signal. The ultra wideband antenna transmits and receives an ultra wideband signal.

Abstract translation: 使用超宽带脉冲和1位高速数字采样器的基于脉冲无线电的超宽带通信系统包括发射RF模块，接收RF模块，信号恢复单元，发射信号处理器，接收信号 处理器和超宽带天线。 发射RF模块包括能够实现开关键调制和脉冲位置调制的集成脉冲发生器和用于放大积分脉冲发生器的输出的放大器。 接收RF模块包括用于检测接收信号的两级包络检测器和用于将检测到的信号转换成矩形脉冲的比较器。 信号恢复单元使用1位数字采样器将信号从接收RF模块恢复到数字信号。 信号处理器包括用于使数字信号同步并解码检测信号的接收信号处理器。 超宽带天线发射和接收超宽带信号。

公开(公告)号：US20080045113A1

公开(公告)日：2008-02-21

申请号：US11898607

申请日：2007-09-13

Applicant: Jae Kim ,  Won Lee ,  Sa Rha

Inventor： Jae Kim ,  Won Lee ,  Sa Rha

IPC: H01J9/00

CPC classification number: H01J65/00 ,  H01J9/247 ,  H01J61/305

Abstract: A flat-type fluorescent lamp device includes a first substrate, a plurality of first and second electrodes arranged on the first substrate at fixed intervals, a first fluorescent layer on an entire surface of the first substrate including the first and second electrodes, a second substrate having a plurality of projection portions for maintaining a uniform gap between the first and second substrates, and a second fluorescent layer on the second substrate except at regions of the projection portions that contact the first substrate.

Abstract translation: 平板荧光灯装置包括第一基板，以固定间隔布置在第一基板上的多个第一和第二电极，在包括第一和第二电极的第一基板的整个表面上的第一荧光层，第二基板 具有用于保持第一和第二基板之间的均匀间隙的多个突起部分，以及除了与第一基板接触的突出部分的区域之外的第二基板上的第二荧光层。

公开(公告)号：US20070198548A1

公开(公告)日：2007-08-23

申请号：US11604368

申请日：2006-11-27

Applicant: Won Lee

Inventor： Won Lee

IPC: G06F7/00

CPC classification number: G06F17/30539 ,  G06F17/30501 ,  Y10S707/99936 ,  Y10S707/99937

Abstract: Disclosed a relates to a method for finding specific information by analyzing a large amount of data set and a method for finding frequent itemsets in a data mining system realized using the same. The mining in a data stream defined as an indefinite set of data continuously generated is directed to a method for finding valuable knowledge effectively from such data and, recently, various mining methods have been proposed. When considering the characteristics of the data stream in which data elements are indefinitely generated at high speed, these mining methods has an important requirement in that the memory usage required for the performance of the mining process be restricted within an available range. The present invention provides an effective data structure in finding frequent itemsets over data streams and finds necessary information using the data structure. The data structure proposed in the present invention is defined as a compressed prefix tree structure, and the compressed prefix tree merges or splits nodes during the mining operation by comparing the prefix tree structure applied to the conventional data mining to manage a plurality of items in a single node, thus dynamically and flexibly adjusting the tree size. Such dynamic adjustment function dynamically merges and splits nodes in the prefix tree, if the variation of itemsets that are most likely to be frequent itemsets due to the variation of the data stream, thus maximizing the accuracy of the mining result in a restricted memory space, i.e., the accuracy of frequent itemsets found. Moreover, the present invention provides a method for optimizing the memory usage that ensures an optimum mining result within an available memory range using the compressed prefix tree structure.

Abstract translation: 本发明涉及一种用于通过分析大量数据集来寻找特定信息的方法以及在使用该数据集实现的数据挖掘系统中找到频繁项集的方法。 定义为连续生成的不确定数据集的数据流中的挖掘涉及从这些数据有效地发现有价值的知识的方法，并且最近已经提出了各种挖掘方法。 当考虑数据元素在高速无限期生成的数据流的特性时，这些挖掘方法具有重要的要求，因为挖掘过程执行所需的存储器使用被限制在可用范围内。 本发明提供了一种有效的数据结构，用于在数据流上寻找频繁项集，并使用数据结构找到必要的信息。 本发明中提出的数据结构被定义为压缩前缀树结构，并且压缩前缀树在挖掘操作期间通过比较应用于常规数据挖掘的前缀树结构来管理多个项目 单节点，从而动态灵活地调整树的大小。 如果由于数据流的变化而最有可能是频繁项目集的项目集的变化，从而将挖掘结果的准确性最大化在受限的存储器空间中，则这种动态调整功能动态地合并和分割前缀树中的节点， 即找到频繁项目集的准确性。 此外，本发明提供一种用于优化存储器使用的方法，其使用压缩的前缀树结构确保可用存储器范围内的最佳挖掘结果。

公开(公告)号：US20070133352A1

公开(公告)日：2007-06-14

申请号：US11633456

申请日：2006-12-05

Applicant: Jin Kim ,  Seung Park ,  II Park ,  Kwang Lee ,  Doo Eom ,  Won Lee ,  Woo Lee ,  Tae Kim

Inventor： Jin Kim ,  Seung Park ,  II Park ,  Kwang Lee ,  Doo Eom ,  Won Lee ,  Woo Lee ,  Tae Kim

IPC: G01S3/80

CPC classification number: G01S5/18 ,  G01S5/0289

Abstract: Provided are a system and method for position awareness that can be used indoors in a large-scale environment and can minimize generation of radio frequency (RF) and ultrasonic waves in a wireless sensor network including low-priced sensor nodes capable of precise position measurement, thus improving energy efficiency by reducing unnecessary power consumption. The method includes the steps of: (a) calculating initial position coordinates using beacon information received from adjacent beacons through a broadcast beacon solicitation signal, sending a synchronization signal to the beacons, and synchronizing the beacons; (b) receiving ultrasonic waves generated from the adjacent beacons activated by a broadcast start message, and calculating position coordinates; and (c) when the calculated position coordinates correspond to a predetermined hand-off threshold position, transmitting a hand-off process message to a newly activated beacon, and executing a hand-off process routine.

Abstract translation: 提供一种用于位置感知的系统和方法，其可以在大规模环境中室内使用，并且可以在包括能够进行精确位置测量的低价传感器节点的无线传感器网络中最小化射频（RF）和超声波的产生， 从而通过减少不必要的功率消耗来提高能量效率。 该方法包括以下步骤：（a）使用通过广播信标请求信号从相邻信标接收到的信标信息来计算初始位置坐标，向信标发送同步信号，并同步信标; （b）接收由广播开始消息激活的相邻信标产生的超声波，并计算位置坐标; 以及（c）当计算出的位置坐标对应于预定的切换阈值位置时，将切换处理消息发送到新激活的信标，并且执行切换处理程序。

公开(公告)号：US20070108884A1

公开(公告)日：2007-05-17

申请号：US11650964

申请日：2007-01-09

Applicant: Jae Kim ,  Won Lee ,  Sa Rha

Inventor： Jae Kim ,  Won Lee ,  Sa Rha

IPC: H01J63/04

CPC classification number: H01J9/247 ,  H01J61/305 ,  H01J65/00

Abstract: A flat-type fluorescent lamp device includes first and second substrates facing each other, a plurality of first electrodes on the first substrate disposed along a first direction, each first electrode having protrusions extending from both sides of the first electrode along the first direction, a plurality of second electrodes on the first substrate, the second electrodes each having concave portions that correspond to the protrusions of the first electrode and convex portions that correspond to regions between the protrusions of the first electrode, a first fluorescent layer on an entire surface of the first substrate including the first and second electrodes, and a second fluorescent layer on the second substrate.

公开(公告)号：US20070058748A1

公开(公告)日：2007-03-15

申请号：US11518165

申请日：2006-09-11

Applicant: Kyung Kim ,  Hyoung Nam ,  Won Lee

Inventor： Kyung Kim ,  Hyoung Nam ,  Won Lee

IPC: H04L27/00

CPC classification number: H04L27/0002 ,  H01L2224/32145 ,  H01L2224/48091 ,  H01L2224/49171 ,  H01L2224/73265 ,  H04B1/52 ,  H01L2924/00014

Abstract: A front end module having a multilayered structure is provided. The front end module includes a transmitter, a receiver, and a duplex unit. A ground layer is provided with an ground pattern having a plurality of separated blocks on a surface of a substrate of the front end module.

Abstract translation: 提供具有多层结构的前端模块。 前端模块包括发射机，接收机和双工单元。 接地层设置有在前端模块的基板的表面上具有多个分离块的接地图案。

公开(公告)号：US20070049286A1

公开(公告)日：2007-03-01

申请号：US10576831

申请日：2005-09-09

Applicant: Tae Il Kim ,  Tae Ha ,  Sung Kim ,  Hyuk Sohn ,  Won Lee

Inventor： Tae Il Kim ,  Tae Ha ,  Sung Kim ,  Hyuk Sohn ,  Won Lee

IPC: H04Q7/20

CPC classification number: G01S5/0252

Abstract: Provided is a method and system for determining a position of a mobile communication device in a mobile communication network, the method including the steps of: dividing an area covered by the mobile communication network into a plurality of grids and collecting a first base station signal information with respect to each of the divided grids; storing and maintaining the collected first base station signal information in association with position information of the grids in a database; measuring a second base station signal information received by the mobile communication device; comparing the second base station signal information with the first base station signal information to find position information corresponding to the second base station signal information in the database; and generating final position information of the mobile communication device based on the position information found in the database.

Abstract translation: 提供了一种用于确定移动通信网络中的移动通信设备的位置的方法和系统，该方法包括以下步骤：将由移动通信网络覆盖的区域划分为多个网格并收集第一基站信号信息 相对于每个分开的网格; 与数据库中的网格的位置信息相关联地存储和维护所收集的第一基站信号信息; 测量由所述移动通信设备接收的第二基站信号信息; 将所述第二基站信号信息与所述第一基站信号信息进行比较，以找到与所述数据库中的所述第二基站信号信息对应的位置信息; 以及基于在数据库中找到的位置信息生成移动通信设备的最终位置信息。

公开(公告)号：US20060281632A1

公开(公告)日：2006-12-14

申请号：US11435212

申请日：2006-05-17

Applicant: Won Lee ,  Dong Lee ,  Jong Chae ,  Hyun Yoon

Inventor： Won Lee ,  Dong Lee ,  Jong Chae ,  Hyun Yoon

IPC: B01J27/224

CPC classification number: B01J23/30 ,  B01J37/0201 ,  B01J37/0205 ,  C07C45/36 ,  C07C47/544

Abstract: The present invention relates to a novel method for preparing a catalyst for partial oxidation of methlybenzenes, comprising, (a) a step of preparing a solution or slurry of the compounds comprising tungsten (b) a step of supporting the solution or slurry obtained in the step (a) on inorganic carrier; (c) a step of drying the catalyst obtained in the step (b); and (d) a step of calcining the dried catalyst obtained in the step (c), characterized in that the ratio of the pore volume of inorganic carrier and the volume of the solution or slurry in the step (b) is 1:09˜1.1, and the catalyst provides superior aromatic aldehydes selectivity to those prepared by the conventional impregnation or heat evaporation method over a wide range of conversion rate.

Abstract translation: 本发明涉及一种制备用于部分氧化甲基苯的催化剂的新方法，包括（a）制备包含钨的化合物的溶液或浆料的步骤（b）将在 步骤（a）无机载体; （c）干燥步骤（b）中获得的催化剂的步骤; 和（d）煅烧步骤（c）中获得的干燥催化剂的步骤，其特征在于步骤（b）中无机载体的孔体积与溶液或浆料的体积比为1:09〜 1.1，并且催化剂在宽范围的转化率下为通过常规浸渍或热蒸发法制备的那些提供优异的芳族醛选择性。

公开(公告)号：US20060223319A1

公开(公告)日：2006-10-05

申请号：US11268961

申请日：2005-11-08

Applicant: Yong Choi ,  Won Lee

Inventor： Yong Choi ,  Won Lee

IPC: C03C15/00 ,  H01L21/331 ,  H01L21/461 ,  B44C1/22

CPC classification number: H01L21/3212

Abstract: Disclosed herein is a chemical mechanical polishing (CMP) method for manufacturing a semiconductor device, comprising performing partial ion implantation of dopants at different concentrations into a plurality of at least two divided regions of a wafer having a planarization-target film, and subjecting the partially ion implanted-wafer to a chemical mechanical polishing process. In accordance with the present invention, non-uniformity of the removal rate in a chemical mechanical polishing process is countervailed by dopants which are implanted at different concentrations via partial ion implantation, and thereby it is possible to polish the target film at a uniform removal rate.

Abstract translation: 本文公开了一种用于制造半导体器件的化学机械抛光（CMP）方法，包括：将具有不同浓度的掺杂剂的部分离子注入到具有平坦化靶膜的晶片的多个至少两个分割区域中， 离子注入晶片进行化学机械抛光工艺。 根据本发明，化学机械抛光工艺中的去除速率的不均匀性被通过部分离子注入以不同浓度注入的掺杂剂抵消，从而可以以均匀的去除速率对目标膜进行抛光 。