公开(公告)号：US20140001973A1

公开(公告)日：2014-01-02

申请号：US13613692

申请日：2012-09-13

Applicant: Deuk Hee PARK ,  Yun Joong Lee ,  Sang Hyun Cha ,  Chang Seok Lee

Inventor： Deuk Hee PARK ,  Yun Joong Lee ,  Sang Hyun Cha ,  Chang Seok Lee

IPC: H05B37/02

CPC classification number: H05B33/0815 ,  H02M1/4258 ,  Y02B20/346 ,  Y02B70/126

Abstract: There is provided a light emitting diode driving apparatus for controlling the light emitting diode driving according to a feedback signal input through a positive feedback loop, the light emitting diode driving apparatus including: a power converting unit switching input power and supplying driving power to at least one light emitting diode; a feedback unit detecting and feeding back a voltage of the driving power of the power converting unit; and a controlling unit including a comparator having a negative terminal receiving a reference voltage having a set voltage level and a positive terminal receiving the detected voltage from the feedback unit and comparing the reference voltage with the detected voltage to control a switching of the power converting unit according to a comparison result.

Abstract translation: 提供了一种发光二极管驱动装置，用于根据通过正反馈环路输入的反馈信号来控制发光二极管驱动，该发光二极管驱动装置包括：功率转换单元，用于切换输入电力并将驱动功率提供给至少 一个发光二极管; 反馈单元，检测并反馈所述电力转换单元的驱动电力的电压; 以及控制单元，其包括比较器，其具有接收具有设定电压电平的参考电压的负极端子和从所述反馈单元接收所述检测到的电压的正极端子，并且将所述参考电压与所述检测到的电压进行比较，以控制所述功率转换单元 根据比较结果。

公开(公告)号：US20130177006A1

公开(公告)日：2013-07-11

申请号：US13811818

申请日：2011-07-27

Applicant: Seung Yoon Baek ,  Chae Hwan Cho ,  Hye Min Lee ,  Chang Seok Lee ,  Suk Yon Kang ,  Jong Tae Ihm

Inventor： Seung Yoon Baek ,  Chae Hwan Cho ,  Hye Min Lee ,  Chang Seok Lee ,  Suk Yon Kang ,  Jong Tae Ihm

IPC: H04W4/02

CPC classification number: H04W64/00 ,  H04W4/02 ,  H04W4/80 ,  H04W8/005 ,  H04W84/12

Abstract: A location and state information providing/inquiring system using WLAN/WPAN communication, log information providing/inquiring system, service server, customer terminal, location and state information providing/inquiring method, and log information providing/inquiring method are disclosed. System for providing/inquiring location and state information by using WLAN/WPAN communication includes: mobile terminal including WLAN/WPAN communication module for acquiring and transmitting identification information of one or more WLAN/WPAN communication modules of one or more adjacent other terminals; service server for storing identification information of subscriber terminals, receiving identification information of WLAN/WPAN communication modules from mobile terminal, and transmitting list of service subscribers; and positioning server for positioning subscriber terminals of service subscribers, and if one or more service subscribers are selected by mobile terminal based on list received from service server, transmitting location and state information of terminals corresponding to service subscribers selected to mobile terminal.

Abstract translation: 公开了使用WLAN / WPAN通信的位置和状态信息提供/查询系统，日志信息提供/查询系统，服务服务器，客户终端，位置和状态信息提供/查询方法以及日志信息提供/查询方法。 用于通过WLAN / WPAN通信提供/查询位置和状态信息的系统包括：包括WLAN / WPAN通信模块的移动终端，用于获取和发送一个或多个相邻其他终端的一个或多个WLAN / WPAN通信模块的标识信息; 用于存储用户终端的识别信息的服务服务器，从移动终端接收WLAN / WPAN通信模块的识别信息，以及发送业务用户列表; 以及定位服务器，用于定位服务用户的用户终端，并且如果根据从服务服务器接收到的列表，由移动终端选择一个或多个服务用户，则发送与选择到移动终端的服务用户对应的终端的位置和状态信息。

公开(公告)号：US20130170382A1

公开(公告)日：2013-07-04

申请号：US13808328

申请日：2011-06-28

Applicant: Suk Yon Kang ,  Seung Yoon Baek ,  Hye Min Lee ,  Chang Seok Lee ,  Chae Hwan Cho

Inventor： Suk Yon Kang ,  Seung Yoon Baek ,  Hye Min Lee ,  Chang Seok Lee ,  Chae Hwan Cho

IPC: H04W24/02

CPC classification number: H04W24/02 ,  G01S5/021 ,  G01S5/0252 ,  H04W64/00 ,  H04W84/12

Abstract: An apparatus for updating a database for wireless LAN based positioning includes a database for storing grid cells divided by pCell ID and base station-derived environment information and wireless LAN environment information matched to the grid cells; a grid cell determining unit for determining an information-unmeasured grid cell among the grid cells, the information-unmeasured grid cell being a grid cell that has unmeasured information among parameters of the wireless LAN environment information matched to the grid cells; an unmeasured parameter checking unit for checking an unmeasured parameter in the information-unmeasured grid cell; a radiowave environment estimating unit for generating radiowave environment estimation information by estimating the unmeasured information based on the unmeasured parameter checked; and a database updating unit for reflecting the radiowave environment estimation information in the information-unmeasured grid cell determined.

Abstract translation: 一种用于更新用于基于无线LAN的定位的数据库的装置包括：用于存储由pCell ID和基站导出的环境信息以及与网格单元匹配的无线LAN环境信息划分的网格单元的数据库; 网格单元确定单元，用于确定网格单元之间的信息未测量网格单元，所述信息未测量网格单元是在与所述网格单元匹配的无线LAN环境信息的参数中具有未测量信息的网格单元; 用于检查信息未测量网格单元中的未测量参数的未测量参数检查单元; 无线电波环境估计单元，用于通过基于所检查的未测量参数估计未测量信息来生成无线电波环境估计信息; 以及数据库更新单元，用于反映所确定的信息未测量网格单元中的无线电波环境估计信息。

公开(公告)号：US20120319605A1

公开(公告)日：2012-12-20

申请号：US13290738

申请日：2011-11-07

Applicant: Joong Ho CHOI ,  Yeun Joong Lee ,  Deuk Hee Park ,  Sang Huyn Cha ,  Chang Seok Lee

Inventor： Joong Ho CHOI ,  Yeun Joong Lee ,  Deuk Hee Park ,  Sang Huyn Cha ,  Chang Seok Lee

IPC: H05B37/00

CPC classification number: H05B33/0815 ,  H05B33/0845 ,  H05B33/0851

Abstract: A fixture-compatible, dimmable illumination driving apparatus including: a rectifying unit rectifying a phase-controlled waveform of an alternating current (AC) power; a comparing unit comparing an output waveform of the rectifying unit with a first voltage according to a preset reference clock; a reference voltage generating unit generating a reference voltage corresponding to the number of high signals higher than the first voltage among outputs of the comparing unit during one cycle of the output waveform; and a pulse width modulation (PWM) signal generating unit generating a PWM signal from the reference voltage and a feedback voltage.

Abstract translation: 一种灯具兼容的可调光照明驱动装置，包括：整流单元，对交流（AC）功率的相位控制波形进行整流; 比较单元，根据预设的参考时钟将整流单元的输出波形与第一电压进行比较; 参考电压产生单元，在所述输出波形的一个周期期间，生成与所述比较单元的输出之间高于所述第一电压的高信号的数量相对应的参考电压; 以及脉冲宽度调制（PWM）信号生成单元，从所述基准电压和反馈电压生成PWM信号。

公开(公告)号：US08222697B2

公开(公告)日：2012-07-17

申请号：US12273719

申请日：2008-11-19

Applicant: Yu Sin Kim ,  Chang Seok Lee ,  Nam Jin Oh ,  Shinichi Iizuka

Inventor： Yu Sin Kim ,  Chang Seok Lee ,  Nam Jin Oh ,  Shinichi Iizuka

IPC: H01L27/12

CPC classification number: G06K19/07749 ,  G06K19/07775 ,  G06K19/07779 ,  H01L23/5227 ,  H01L23/645 ,  H01L2223/665 ,  H01L2924/0002 ,  H01L2924/14 ,  H01L2924/00

Abstract: Provided is a CMOS RF IC comprises an inductor that is formed in the uppermost two or more metal layers among a plurality of metal layers; and a DC bias circuit that is formed in a metal layer provided at the bottom of the metal layers in which the inductor is formed.

Abstract translation: 提供了一种CMOS RF IC，其包括形成在多个金属层中的最上面的两个或更多个金属层中的电感器; 以及形成在设置在形成有电感器的金属层的底部的金属层中的DC偏置电路。

公开(公告)号：US08030991B2

公开(公告)日：2011-10-04

申请号：US12614244

申请日：2009-11-06

Applicant: Sang Hyun Cha ,  Chang Seok Lee

Inventor： Sang Hyun Cha ,  Chang Seok Lee

IPC: H04B1/10 ,  H04B1/12

CPC classification number: H04L25/063 ,  H04L27/0014

Abstract: The present invention provides a frequency tuning/DC offset canceling circuit for continuous-time analog filter with time division, the frequency tuning/DC offset canceling circuit including: a frequency tuning/DC offset canceling unit for performing frequency tuning by comparing an output voltage with a reference voltage when a frequency tuning control signal is inputted, and canceling a DC offset after terminating the frequency tuning when a DC offset canceling control signal is inputted; and a control signal generator for generating the frequency tuning control signal and the DC offset canceling control signal based on a reference clock in time division.

Abstract translation: 本发明提供了一种用于具有时分的连续时间模拟滤波器的频率调谐/ DC偏移消除电路，该频率调谐/ DC偏移消除电路包括：频率调谐/ DC偏移消除单元，用于通过将输出电压与 当输入频率调谐控制信号时的参考电压，以及在输入DC偏移消除控制信号时终止频率调谐之后取消DC偏移; 以及控制信号发生器，用于基于时分的参考时钟产生频率调谐控制信号和DC偏移消除控制信号。

公开(公告)号：US07954079B2

公开(公告)日：2011-05-31

申请号：US11943211

申请日：2007-11-20

Applicant: Yu Sin Kim ,  Chang Seok Lee ,  Chang Soo Yang ,  Kwang Du Lee ,  Hak Sun Kim

Inventor： Yu Sin Kim ,  Chang Seok Lee ,  Chang Soo Yang ,  Kwang Du Lee ,  Hak Sun Kim

IPC: G06F17/50

CPC classification number: G06F17/5068 ,  G06F17/5036

Abstract: Provided is a method for compensating performance degradation of a radio frequency integrated circuit (RFIC) using an EM simulation. The method includes the steps of: (a) extracting the design specifications of the RFIC so as design and simulate a circuit; (b) designing the layout of the designed and simulated circuit, and extracting layout parameters by using the designed layout; (c) simplifying the layout and carrying out the EM simulation to extract performance parameters; (d) carrying out a circuit simulation by using the extracted layout parameters and performance parameters, and judging whether the results of the circuit simulation satisfy the design specifications of the RFIC or not; (e) when it is judged that the results of the circuit simulation satisfy the design specifications of the RFIC, performing a circuit manufacturing process; and (f) when it is not judged that the results of the circuit simulation satisfy the design specifications of the RFIC, partially removing the layout, and carrying out the EM simulation, thereby analyzing and compensating a performance degradation region.

Abstract translation: 提供了一种使用EM模拟来补偿射频集成电路（RFIC）的性能劣化的方法。 该方法包括以下步骤：（a）提取RFIC的设计规范，以设计和模拟电路; （b）设计和仿真电路的布局设计，并通过设计布局提取布局参数; （c）简化布局并执行EM仿真以提取性能参数; （d）使用提取的布局参数和性能参数进行电路仿真，判断电路仿真结果是否满足RFIC的设计规范; （e）当判断电路仿真的结果满足RFIC的设计规范时，执行电路制造过程; 和（f）当不判断电路仿真的结果满足RFIC的设计规范时，部分地去除布局并进行EM仿真，从而分析和补偿性能退化区域。

公开(公告)号：US20100177046A1

公开(公告)日：2010-07-15

申请号：US12657067

申请日：2010-01-13

Applicant: Young-Shik Shin ,  Kwang-Cheol Choi ,  Chang-Seok Lee

Inventor： Young-Shik Shin ,  Kwang-Cheol Choi ,  Chang-Seok Lee

IPC: G06F3/02

CPC classification number: G06F3/04886 ,  G06F3/0421 ,  G06F3/0482 ,  G06F3/04842

Abstract: A key input apparatus for a portable apparatus includes a display unit that displays a key selected by a user input. The apparatus includes a light sensor comprising a plurality of light emitting elements and a plurality of light receiving elements. The respective light emitting elements generate first light signals upward at a predetermined angle from a direction in which the light emitting elements face the light receiving elements. The apparatus also includes input detection unit that detects the light receiving elements that receive the first light signals, and detects a user's space input position using the light receiving elements that receive the first light signals if the light receiving elements that receive the first light signals are detected.

Abstract translation: 用于便携式设备的键输入设备包括显示单元，其显示由用户输入选择的键。 该装置包括一个包含多个发光元件和多个光接收元件的光传感器。 各个发光元件从发光元件朝向光接收元件的方向以预定角度向上产生第一光信号。 该装置还包括输入检测单元，其检测接收第一光信号的光接收元件，并且如果接收第一光信号的光接收元件是接收第一光信号的光接收元件，则使用接收第一光信号的光接收元件来检测用户的空间输入位置 检测到。

公开(公告)号：US07672364B2

公开(公告)日：2010-03-02

申请号：US11584329

申请日：2006-10-20

Applicant: Hyun-II Kang ,  Chang-Seok Lee ,  Jae-Kon Lee ,  Young-Hwan Lee

Inventor： Hyun-II Kang ,  Chang-Seok Lee ,  Jae-Kon Lee ,  Young-Hwan Lee

IPC: H04B1/38

CPC classification number: H04L27/364 ,  H03J2200/29 ,  H04B17/21 ,  H04L27/38

Abstract: A method is provided for self-calibrating the mismatch and the direct current (DC) offset occurring in a mobile transceiver. The transmitter of the mobile terminal is used as a signal generator and the receiver thereof is used as a response characteristic measurer. The baseband processor calibrates the mismatch and the DC offset for the receiving and transmitting sides using a test signal received from the transmitter. When multiple input subcarriers are used in a mixer present on a reception stage, self-calibration is performed using multiple received test signals obtained from one transmission test signal.

Abstract translation: 提供了一种用于自校准在移动收发器中出现的失配和直流（DC）偏移的方法。 移动终端的发射机用作信号发生器，其接收机用作响应特性测量器。 基带处理器使用从发送器接收的测试信号来校准接收和发送端的失配和直流偏移。 当在接收台上存在的混频器中使用多个输入副载波时，使用从一个发送测试信号获得的多个接收的测试信号进行自校准。

公开(公告)号：US07606338B2

公开(公告)日：2009-10-20

申请号：US11357998

申请日：2006-02-22

Applicant: Young-hwan Kim ,  Hak-sun Kim ,  Chang-seok Lee ,  Kwy-ro Lee ,  Seong-soo Lee

Inventor： Young-hwan Kim ,  Hak-sun Kim ,  Chang-seok Lee ,  Kwy-ro Lee ,  Seong-soo Lee

IPC: H03D1/00 ,  H03H7/18

CPC classification number: H04B1/709 ,  H04B1/7093

Abstract: An analog correlator for very high speed data communication, including a single transmission line receiving an input signal and used as a signal delay circuit, a plurality of analog multipliers connected in parallel with a predetermined gap from the transmission line, for receiving a predetermined size of voltages, respectively, and an adder for adding the signals from the plurality of analog multipliers and transmitting the resultant signal as an output signal. The analog correlator can perform very high speed data communication, and can be applied to a high precision position estimation system. Moreover, the time delay is controlled in each part of the transmission line by adjusting a size of a variable capacitor. As a result, the length of the transmission line can be adjusted. Furthermore, the correlator is adaptively used according to variations of the very high speed communication environment by adjusting voltages of application voltage devices.

Abstract translation: 一种用于非常高速数据通信的模拟相关器，包括接收输入信号并用作信号延迟电路的单个传输线，多个模拟乘法器，与来自传输线的预定间隙并联连接，用于接收预定大小的 电压，以及用于将来自多个模拟乘法器的信号相加并将结果信号作为输出信号发送的加法器。 模拟相关器可以执行非常高速的数据通信，并且可以应用于高精度位置估计系统。 此外，通过调整可变电容器的尺寸，在传输线的每个部分中控制时间延迟。 结果，可以调节传输线的长度。 此外，通过调整施加电压装置的电压，根据非常高速的通信环境的变化自适应地使用相关器。