公开(公告)号：US07375700B2

公开(公告)日：2008-05-20

申请号：US11230971

申请日：2005-09-20

Applicant: Seong-Taek Hwang ,  Jae-Hoon Lee ,  Young-Sik Kim ,  Ji-Chai Jeong ,  Jung-Woo Baek ,  Young-Je Sung

Inventor： Seong-Taek Hwang ,  Jae-Hoon Lee ,  Young-Sik Kim ,  Ji-Chai Jeong ,  Jung-Woo Baek ,  Young-Je Sung

IPC: H01Q1/50 ,  H01Q1/24

CPC classification number: H01Q9/40 ,  H01Q5/50 ,  H01Q9/0485

Abstract: A wideband monopole antenna assembly includes a substrate having an antenna connector, a wideband monopole antenna positioned on the substrate, and a feeder unit positioned on the rear surface of the substrate for supporting the antenna with a part thereof bent at a predetermined angle. The wideband monopole antenna has a feeder portion shorter than conventional antennas for compactness of the antenna.

Abstract translation: 宽带单极天线组件包括具有天线连接器的基板，位于基板上的宽带单极天线，以及位于基板的后表面上的馈电单元，用于支撑天线，其一部分以预定角度弯曲。 宽带单极天线具有比常规天线更短的馈电部分，用于天线的紧凑性。

公开(公告)号：US20080064133A1

公开(公告)日：2008-03-13

申请号：US11933950

申请日：2007-11-01

Applicant: Jae Hoon LEE ,  In Eung KIM ,  Yong Chun KIM ,  Hyun Kyung KIM ,  Moon Heon KONG

Inventor： Jae Hoon LEE ,  In Eung KIM ,  Yong Chun KIM ,  Hyun Kyung KIM ,  Moon Heon KONG

IPC: H01L33/00

CPC classification number: H01L33/387 ,  H01L33/32 ,  H01L33/405 ,  H01L33/46

Abstract: A flip chip-type nitride semiconductor light emitting diode includes a light transmittance substrate, an n-type nitride semiconductor layer, an active layer, a p-type nitride semiconductor layer and a mesh-type DBR reflecting layer. The mesh-type DBR reflecting layer has a plurality of open regions. The mesh-type DBR reflecting layer is composed of first and second nitride layers having different Al content. The first and second nitride layers are alternately stacked several times to form the mesh-type DBR reflecting layer. An ohmic contact layer is formed on the mesh-type DBR reflecting layer and on the p-type nitride semiconductor layer.

Abstract translation: 倒装芯片型氮化物半导体发光二极管包括透光性基板，n型氮化物半导体层，有源层，p型氮化物半导体层和网状DBR反射层。 网状DBR反射层具有多个开放区域。 网状DBR反射层由具有不同Al含量的第一和第二氮化物层组成。 第一和第二氮化物层交替堆叠几次以形成网状DBR反射层。 在网状DBR反射层和p型氮化物半导体层上形成欧姆接触层。

公开(公告)号：US07331566B2

公开(公告)日：2008-02-19

申请号：US10998922

申请日：2004-11-30

Applicant: Jae Hoon Lee ,  Jeong Tak Oh ,  Jin Sub Park

Inventor： Jae Hoon Lee ,  Jeong Tak Oh ,  Jin Sub Park

IPC: H01L33/00

CPC classification number: H01L33/32 ,  H01L33/14

Abstract: A nitride semiconductor light emitting device and a method of manufacturing the same are disclosed. The nitride semiconductor light emitting device comprises an n-type nitride semiconductor layer formed on a substrate, an active layer formed on the n-type nitride semiconductor layer, a p-type nitride semiconductor layer formed on the active layer, an undoped GaN layer formed on the p-type nitride semiconductor layer, an AlGaN layer formed on the undoped GaN layer to form a two-dimensional electron gas (2DEG) layer at a bonding interface between the AlGaN layer and the undoped GaN layer, and an n-side electrode and a p-side electrode respectively formed on the n-type nitride semiconductor layer and the AlGaN layer to be connected to each other. As a hetero-junction structure of GaN/AlGaN is formed on the p-type nitride semiconductor layer, contact resistance between the p-type nitride semiconductor layer and the p-side electrode is enhanced by virtue of tunneling effect through the 2DEG layer.

Abstract translation: 公开了一种氮化物半导体发光器件及其制造方法。 氮化物半导体发光器件包括形成在衬底上的n型氮化物半导体层，形成在n型氮化物半导体层上的有源层，形成在有源层上的p型氮化物半导体层，形成的未掺杂的GaN层 在p型氮化物半导体层上，形成在未掺杂的GaN层上的AlGaN层，以在AlGaN层和未掺杂的GaN层之间的键合界面处形成二维电子气（2DEG）层，以及n侧电极 以及分别形成在相互连接的n型氮化物半导体层和AlGaN层上的p侧电极。 由于在p型氮化物半导体层上形成GaN / AlGaN的异质结结构，因此通过2DEG层的隧道效应，p型氮化物半导体层与p侧电极之间的接触电阻增强。

公开(公告)号：US20080040090A1

公开(公告)日：2008-02-14

申请号：US11888535

申请日：2007-08-02

Applicant: Jae-Hoon Lee

Inventor： Jae-Hoon Lee

IPC: G06F17/50 ,  G06F9/45

CPC classification number: G06F17/5009 ,  G06F2217/62 ,  G06F2217/66 ,  G06F2217/84

Abstract: A method and an apparatus for indirectly simulating a semiconductor integrated circuit (IC) are described. A circle chain is formed using input pins and output pins to provide an intellectual property (IP) core model that substitutes for a real IP core circuit. A test bench for the IP core model is generated, the semiconductor IC that includes the IP core model is integrated using the generated test bench, and the semiconductor IC is simulated.

Abstract translation: 描述用于间接模拟半导体集成电路（IC）的方法和装置。 使用输入引脚和输出引脚形成环形链，以提供替代真实IP核心电路的知识产权（IP）核心模型。 生成IP核心模型的测试台，使用生成的测试台集成了包含IP核模型的半导体IC，模拟半导体IC。

公开(公告)号：US20070258432A1

公开(公告)日：2007-11-08

申请号：US11642260

申请日：2006-12-20

Applicant: Jae-Hoon Lee ,  Byung-Jik Kim ,  Seong-Taek Hwang ,  Sang-Ho Kim

Inventor： Jae-Hoon Lee ,  Byung-Jik Kim ,  Seong-Taek Hwang ,  Sang-Ho Kim

IPC: H04B7/212

CPC classification number: H04B10/25758 ,  H04B7/2606

Abstract: A single wavelength bi-directional RoF link apparatus for signal transmission in a TDD wireless system includes a main donor for receiving an RF signal of downstream data from an upper layer, electrooptic converting the received RF signal to an optical signal, and transmitting the converted optical signal via an optical fiber in response to a TDD switching signal received from the upper layer, or receiving an optical signal of upstream data via the optical fiber, opto-electric converting the received optical signal to an RF signal in response to the TDD switching signal received from the upper layer, and transmitting the converted optical signal to the main donor; and a remote for receiving the optical signal of the downstream data via the optical fiber from the main donor, opto-electric converting the received optical signal to an RF signal, and emitting the converted RF signal to a terminal via an antenna in response to a TDD switching signal generated by a switch timing signal generation circuit, or receiving an RF signal of upstream data from the terminal, electro-optic converting the received RF signal to an optical signal in response to the TDD switching signal generated by the switch timing signal generation circuit, and transmitting the converted optical signal to the main donor via the optical fiber.

Abstract translation: 在TDD无线系统中用于信号传输的单波长双向RoF链路装置包括：主要供体，用于从上层接收下行数据的RF信号，将所接收的RF信号电光转换成光信号，并将转换后的光 响应于从上层接收的TDD切换信号，或经由光纤接收上行数据的光信号，经由光纤发送信号，响应于TDD切换信号将接收到的光信号光电转换为RF信号 从上层接收，并将转换的光信号发送到主供体; 以及遥控器，用于经由来自主施体的光纤接收下行数据的光信号，将所接收的光信号光电转换成RF信号，并响应于一个天线经由天线将转换的RF信号发射到终端 TDD切换信号，或者从终端接收上行数据的RF信号，根据切换定时信号生成产生的TDD切换信号将接收的RF信号电光转换为光信号 并且经由光纤将转换后的光信号发送到主供体。

公开(公告)号：US07280719B2

公开(公告)日：2007-10-09

申请号：US11143238

申请日：2005-06-02

Applicant: Jae-Hoon Lee ,  Sung-Bum Park ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Hyun-Soo Kim

Inventor： Jae-Hoon Lee ,  Sung-Bum Park ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Hyun-Soo Kim

IPC: G02B6/28

CPC classification number: H04J14/02 ,  H04B10/296 ,  H04B10/2972

Abstract: A wideband optical module includes a downward wideband light source for generating downward light, an upward wideband light source for generating upward light, a first circulator including a first to a third port for outputting multiplexed downward optical signals to the second port and for outputting multiplexed upward optical signals to the first port, a second circulator including a first to a third port for outputting multiplexed upward optical signals to the second port and for outputting multiplexed downward optical signals to the first port, a first optical coupler connected to the third port of the first circulator and the second port of the second circulator for outputting the downward light to the third port of the first circulator, and a second optical coupler connected to the second port of the first circulator and the third port of the second circulator for outputting the upward light to the third port of the second circulator.

Abstract translation: 宽带光模块包括用于产生向下的光的向下宽带光源，用于产生向上光的向上宽带光源，包括第一至第三端口的第一循环器，用于将多路复用的下行光信号输出到第二端口并用于输出多路复用 光信号到第一端口，第二循环器，包括第一至第三端口，用于将多路复用的上行光信号输出到第二端口，并将多路复用的下行光信号输出到第一端口;第一光耦合器，连接到第一端口的第三端口 第一循环器和第二循环器的第二端口，用于将向下的光输出到第一循环器的第三端口;以及第二光耦合器，连接到第一循环器的第二端口和第二循环器的第三端口，用于输出向上 光到第二个循环器的第三个端口。

公开(公告)号：US07259399B2

公开(公告)日：2007-08-21

申请号：US11490231

申请日：2006-07-21

Applicant: Jae Hoon Lee ,  Hee Seok Choi ,  Jeong Tak Oh ,  Su Yeol Lee

Inventor： Jae Hoon Lee ,  Hee Seok Choi ,  Jeong Tak Oh ,  Su Yeol Lee

IPC: H01L29/22 ,  H01L29/24

CPC classification number: H01L33/14 ,  H01L33/0079 ,  H01L33/16 ,  H01L33/32

Abstract: Provided are a vertical GaN-based LED and a method of manufacturing the same. The vertical GaN-based LED includes an n-electrode. An AlGaN layer is formed under the n-electrode. An undoped GaN layer is formed under the AlGaN layer to provide a two-dimensional electron gas layer to a junction interface of the AlGaN layer. A GaN-based LED structure includes an n-type GaN layer, an active layer, and a p-type GaN layer that are sequentially formed under the undoped GaN layer. A p-electrode is formed under the GaN-based LED structure. A conductive substrate is formed under the p-electrode.

公开(公告)号：US20070147835A1

公开(公告)日：2007-06-28

申请号：US11606666

申请日：2006-11-30

Applicant: Sang-Ho Kim ,  Seong-Taek Hwang ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jae-Hoon Lee

Inventor： Sang-Ho Kim ,  Seong-Taek Hwang ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jae-Hoon Lee

IPC: H04J14/00

CPC classification number: H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282 ,  H04J2014/0253

Abstract: A method for controlling optical transmitters in a Wavelength Division Multiplexed (WDM)-Passive Optical Network (PON) system includes the steps of: determining the existence of an upward optical signal to control an optical transmitter provided for each corresponding Optical Node Terminal (ONT) to be turned on/off in an Optical Line Termination (OLT); and monitoring the state of a transmission buffer within an Ethernet switch to control a corresponding optical transmitter to be turned on/off in accordance with the state of the transmission buffer in each of the ONTs.

Abstract translation: 一种用于控制波分复用（WDM）无源光网络（PON）系统中的光发射机的方法包括以下步骤：确定存在向上的光信号以控制为每个对应的光节点终端（ONT）提供的光发射机， 在光线路终端（OLT）中打开/关闭; 以及监视以太网交换机内的发送缓冲器的状态，以根据每个ONT中的发送缓冲器的状态来控制相应的光发送器被接通/断开。

公开(公告)号：US20070147273A1

公开(公告)日：2007-06-28

申请号：US11633838

申请日：2006-12-05

Applicant: Han-Lim Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Sang-Ho Kim ,  Sung-Kee Kim

Inventor： Han-Lim Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Sang-Ho Kim ,  Sung-Kee Kim

IPC: H04J3/00

CPC classification number: H04B10/25758 ,  H04H20/69 ,  H04H20/71 ,  H04W88/085 ,  H04W88/10

Abstract: Disclosed is a radio-over-fiber (ROF) system for supporting various services, the system comprising: a central access platform (CAP) for providing time division duplexing (TDD), frequency division duplexing (FDD), and broadcasting services, converting a TDD downward signal and FDD/broadcasting downward signals into optical signals, respectively, transmitting the converted optical signals to a remote access unit (RAU), converting a TDD upward signal and an FDD upward signal, which have been transmitted as optical signals from the RAU, into electric signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other; and the RAU for converting the TDD downward signal and FDD/broadcasting downward signals transmitted from the CAP into electric signals, respectively, converting the TDD upward signal and FDD upward signal to be transmitted to the CAP into optical signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other, wherein the RAU includes a plurality of signal filtering/separating/combining units, which wirelessly emit the TDD downward signal and FDD/broadcasting downward signals, having been converted into electric signals, through an antenna, and which separate wirelessly-received TDD upward signal and FDD upward signal from each other.

Abstract translation: 公开了用于支持各种业务的无线电光纤（ROF）系统，该系统包括：用于提供时分双工（TDD），频分双工（FDD）和广播服务的中央接入平台（CAP） TDD向下信号和FDD /广播向下信号分别转换成光信号，将转换后的光信号发送到远程接入单元（RAU），转换已经作为光信号从RAU发送的TDD上行信号和FDD向上信号 分别变成电信号，并使用光循环器，以便彼此分离上下信号; 以及分别将从CAP发送的TDD向下信号和FDD /广播向下信号转换成电信号的RAU，分别将TDD向上信号和FDD向上信号转换为发送到CAP的光信号，并使用光 循环器，以便彼此分离上下信号，其中RAU包括多个信号滤波/分离/组合单元，其经过转换成电信号无线地发射TDD向下信号和FDD /广播向下信号，通过 天线，并且将无线接收的TDD上行信号和FDD上行信号彼此分离。

公开(公告)号：US07197688B2

公开(公告)日：2007-03-27

申请号：US10696556

申请日：2003-10-30

Applicant: Jae-hoon Lee

Inventor： Jae-hoon Lee

IPC: H03M13/00

CPC classification number: H04N21/435 ,  H04N21/235 ,  H04N21/4345 ,  H04N21/4348

Abstract: A method of detecting a change in a broadcasting table indicating broadcasting information from cyclic redundancy check (CRC) data of section information of a broadcasting stream. The method includes: storing section information of a broadcasting stream including a version number, a section number, table information, and cyclic redundancy check data; comparing cyclic redundancy check data of first input table information in the section number of the broadcasting stream with cyclic redundancy check data of subsequent input table information in the section number of the broadcasting stream; and parsing and updating the table information if the cyclic redundancy check data is changed.

Abstract translation: 一种从广播流的段信息的循环冗余校验（CRC）数据中检测表示广播信息的广播表中的变化的方法。 该方法包括：存储包括版本号，段号，表信息和循环冗余校验数据的广播流的段信息; 将广播流的段号中的第一输入表信息的循环冗余校验数据与广播流的段号中的后续输入表信息的循环冗余校验数据进行比较; 以及如果所述循环冗余校验数据改变，则解析和更新所述表信息。