公开(公告)号：US08723283B2

公开(公告)日：2014-05-13

申请号：US13360818

申请日：2012-01-30

Applicant: Sae-Kyoung Kang ,  Joon-Ki Lee ,  Joon-Young Huh

Inventor： Sae-Kyoung Kang ,  Joon-Ki Lee ,  Joon-Young Huh

IPC: H01L31/0203

CPC classification number: G02B6/4204 ,  G02B6/4279 ,  G02B6/4281 ,  G02B6/4283

Abstract: An optical module includes a stem, an optical element, data signal lead pins, a printed circuit board, and a post portion. The optical element is mounted on one surface of the stem. The data signal lead pins are connected to the optical element, and protrudes through the other surface of the stem. The printed circuit board has one surface on which data signal transmission lines for contact with the data signal lead pins are formed and the other surface on a part of which a stiffener is formed to protrude. The post portion protrudes from the other surface of the stem, supports the printed circuit board while in close contact with the stiffener such that the data signal lead pins can contact the data signal transmission lines while being disposed linearly above the data signal transmission lines, and includes a coupling portion to be coupled with the stiffener.

Abstract translation: 光学模块包括杆，光学元件，数据信号引线引脚，印刷电路板和柱部分。 光学元件安装在杆的一个表面上。 数据信号引线引脚连接到光学元件，并突出通过杆的另一个表面。 印刷电路板具有一个表面，在该表面上形成用于与数据信号引线销接触的数据信号传输线，并且其一部分形成有加强件的另一个表面突出。 柱部分从杆的另一表面突出，在与加强件紧密接触的同时支撑印刷电路板，使得数据信号引线引脚可以在数据信号传输线上线性地布置而接触数据信号传输线;以及 包括与加强件联接的联接部分。

公开(公告)号：US20120207437A1

公开(公告)日：2012-08-16

申请号：US13360818

申请日：2012-01-30

Applicant: Sae-Kyoung KANG ,  Joon-Ki Lee ,  Joon-Young Huh

Inventor： Sae-Kyoung KANG ,  Joon-Ki Lee ,  Joon-Young Huh

IPC: G02B6/36

CPC classification number: G02B6/4204 ,  G02B6/4279 ,  G02B6/4281 ,  G02B6/4283

Abstract: An optical module includes a stem, an optical element, data signal lead pins, a printed circuit board, and a post portion. The optical element is mounted on one surface of the stem. The data signal lead pins are connected to the optical element, and protrudes through the other surface of the stem. The printed circuit board has one surface on which data signal transmission lines for contact with the data signal lead pins are formed and the other surface on a part of which a stiffener is formed to protrude. The post portion protrudes from the other surface of the stem, supports the printed circuit board while in close contact with the stiffener such that the data signal lead pins can contact the data signal transmission lines while being disposed linearly above the data signal transmission lines, and includes a coupling portion to be coupled with the stiffener.

Abstract translation: 光学模块包括杆，光学元件，数据信号引线引脚，印刷电路板和柱部分。 光学元件安装在杆的一个表面上。 数据信号引线引脚连接到光学元件，并突出通过杆的另一个表面。 印刷电路板具有一个表面，在该表面上形成用于与数据信号引线销接触的数据信号传输线，并且其一部分形成有加强件的另一个表面突出。 柱部分从杆的另一表面突出，在与加强件紧密接触的同时支撑印刷电路板，使得数据信号引线引脚可以在数据信号传输线上线性地布置而接触数据信号传输线;以及 包括与加强件联接的联接部分。

公开(公告)号：US08014680B2

公开(公告)日：2011-09-06

申请号：US11935191

申请日：2007-11-05

Applicant: Joon Ki Lee ,  Jyung Chan Lee ,  Kwangjoon Kim

Inventor： Joon Ki Lee ,  Jyung Chan Lee ,  Kwangjoon Kim

IPC: H04B10/00

CPC classification number: H04B10/40 ,  H04L25/03343

Abstract: An optical transceiver which can effectively reduce optical output jitter when an error is made during designing and manufacturing of a printed circuit board (PCB), and a method of controlling optical output jitter using the optical transceiver are provided. The optical transceiver includes a transmitter unit including an equalizing (EQ) filter which can reduce jitter of a high speed electric signal; a control circuit which controls the EQ filter; a receiver unit which receives an optical signal; and a micro-controller which controls the transmitter unit and the receiver unit. Further included in the optical transceiver is an active type or passive type EQ filter and, in the case of the active type, the control circuit is used to control the filter, in order to compensate for high-frequency component of a high speed electric signal in the transmitter unit in order to reduce reflection or loss on the PCB, and thus deterministic optical output jitter occurring due to Inter-Symbol Interference (ISI) can be reduced.

Abstract translation: 提供了在印刷电路板（PCB）的设计和制造期间发生错误时有效降低光输出抖动的光收发器，以及使用该光收发器控制光输出抖动的方法。 光收发器包括一个发射单元，它包括均衡（EQ）滤波器，可以减少高速电信号的抖动; 控制EQ滤波器的控制电路; 接收单元，其接收光信号; 以及控制发射机单元和接收机单元的微控制器。 在光收发器中还包括有源型或无源型EQ滤波器，并且在有源类型的情况下，控制电路用于控制滤波器，以便补偿高速电信号的高频分量 在发射机单元中以减少PCB上的反射或损耗，因此可以减少由于符号间干扰（ISI）引起的确定性的光输出抖动。

公开(公告)号：US20110150467A1

公开(公告)日：2011-06-23

申请号：US12888959

申请日：2010-09-23

Applicant: Sae-Kyoung KANG ,  Joon Ki LEE

Inventor： Sae-Kyoung KANG ,  Joon Ki LEE

IPC: H04J14/00

CPC classification number: G02B6/29367

Abstract: Provided are a multiplexing and demultiplexing apparatus and method of a multi-wavelength optical signal that may dispose each of thin film filters in a location where a zigzag reflection occurs in a zigzag optical path, and thereby multiplex or demultiplex a multi-wavelength optical signal using the thin film filters. Each of the thin film filters may transmit an optical signal having a predetermined wavelength which is incident at a predetermined incidence angle, and reflect a remaining wavelength optical signal at a predetermined reflection angle.

Abstract translation: 提供了一种多波长光信号的复用和解复用装置和方法，其可以在Z字形光路中发生Z字形反射的位置处设置每个薄膜滤波器，从而使用多波长光信号多路复用或解复用多波长光信号 薄膜过滤器。 每个薄膜滤光器可以传输具有以预定入射角入射的预定波长的光信号，并以预定反射角度反射剩余波长光信号。

公开(公告)号：US20090016719A1

公开(公告)日：2009-01-15

申请号：US12171586

申请日：2008-07-11

Applicant: Joon Ki Lee ,  Jyung Chan Lee ,  Kwangjoon Kim

Inventor： Joon Ki Lee ,  Jyung Chan Lee ,  Kwangjoon Kim

IPC: H04J11/00

CPC classification number: H04J3/0685 ,  H04J3/1611 ,  H04J3/1652

Abstract: Provided are an optical transponder that interfaces a multiprotocol signal and a method of interfacing a multiprotocol signal. The optical transponder includes: an optical transceiver, which optical/electrical converts and multiplexes/demultiplexes an input signal; a reception clock generator, which generates a clock on a reception path; a transmission clock generator, which generates a clock on a transmission path; an optical transport hierarchy (OTH) framer, which processes an OTH signal when the input signal is the OTH signal; a synchronous digital hierarchy (SDH)/synchronous optical network (SONET) framer, which processes an SDH/SONET signal or a gigabit Ethernet (GbE) when the input signal is the SDH/SONET signal or the GbE signal; and a controller which controls the optical transceiver, the reception clock generator, the transmission clock generator, the OTH framer, and the SDH/SONET framer according to the type of the input signal. Accordingly, one optical transponder can receive various types of protocol signals, and thus different optical transponders are not separately required according to a type of a connected signal.

Abstract translation: 提供了一种光接收器，其将多协议信号和多协议信号接口的方法相连接。 光转发器包括：光收发器，其对输入信号进行光/电转换和解复用; 接收时钟发生器，其在接收路径上产生时钟; 传输时钟发生器，其在传输路径上产生时钟; 光传输层次（OTH）成帧器，当输入信号为OTH信号时处理OTH信号; 同步数字层级（SDH）/同步光网络（SONET）成帧器，当输入信号是SDH / SONET信号或GbE信号时处理SDH / SONET信号或千兆以太网（GbE）; 以及根据输入信号的类型控制光收发器，接收时钟发生器，传输时钟发生器，OTH成帧器和SDH / SONET成帧器的控制器。 因此，一个光学应答器可以接收各种类型的协议信号，因此根据连接的信号的类型，不需要单独地需要不同的光转发器。

公开(公告)号：US07313333B2

公开(公告)日：2007-12-25

申请号：US10815064

申请日：2004-03-31

Applicant: Jyung Chan Lee ,  Seung Il Myong ,  Joon Ki Lee ,  Kwang Joon Kim

Inventor： Jyung Chan Lee ,  Seung Il Myong ,  Joon Ki Lee ,  Kwang Joon Kim

IPC: H04B10/06

CPC classification number: H04B10/695

Abstract: Disclosed herein is an apparatus for controlling a decision threshold voltage to an optical receiver, which is capable of automatically controlling the decision threshold voltage to the optical receiver appropriately to signal level decision on the basis of a low-frequency band signal component of an output signal from the optical receiver. The apparatus is adapted to control the level of the decision threshold voltage to the optical receiver, which converts an input optical signal into an electrical signal. To this end, the apparatus comprises a voltage detector for branching off part of the output signal from the optical receiver and detecting a corresponding voltage, a differential comparator for comparing the voltage detected by the voltage detector with a reference voltage inputted thereto and outputting the resulting differential voltage, a low pass filter for filtering the differential voltage from the differential comparator at a predetermined low frequency band and supplying the resulting voltage as the threshold voltage to the optical receiver, and a voltage controller for controlling the reference voltage to the differential comparator on the basis of a differential voltage between the threshold voltage from the low pass filter and a predetermined voltage corresponding to a predetermined minimum bit error rate.

Abstract translation: 本文公开了一种用于控制光接收机的判定阈值电压的装置，其能够基于输出信号的低频带信号分量自动控制对光接收器的判定阈值电压以适当地进行信号电平判定 从光接收机。 该装置适于控制光接收器的判定阈值电平的电平，光接收器将输入光信号转换为电信号。 为此，该装置包括用于将来自光接收器的输出信号的一部分分支并检测相应电压的电压检测器，用于将由电压检测器检测到的电压与输入到其的参考电压进行比较的差分比较器， 差分电压，低通滤波器，用于在预定的低频带对差分比较器的差分电压进行滤波，并将得到的电压作为阈值电压提供给光接收器;以及电压控制器，用于控制差分比较器的参考电压 来自低通滤波器的阈值电压与对应于预定最小误码率的预定电压之间的差分电压的基础。

公开(公告)号：US06617673B2

公开(公告)日：2003-09-09

申请号：US09953704

申请日：2001-09-11

Applicant: Joon Ki Lee ,  Woon Ky Ha

Inventor： Joon Ki Lee ,  Woon Ky Ha

IPC: H01L23495

CPC classification number: H01L23/5387 ,  G11C5/04 ,  H01L21/565 ,  H01L23/3121 ,  H01L23/5388 ,  H01L24/45 ,  H01L24/48 ,  H01L24/97 ,  H01L2224/05599 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/85399 ,  H01L2224/97 ,  H01L2924/00014 ,  H01L2924/01006 ,  H01L2924/01033 ,  H01L2924/01079 ,  H01L2924/12042 ,  H01L2924/181 ,  H01L2924/1815 ,  H01L2924/19041 ,  H05K1/117 ,  H05K3/0052 ,  H05K3/284 ,  H05K2201/0746 ,  H05K2201/094 ,  H01L2224/85 ,  H01L2924/00 ,  H01L2924/00012 ,  H01L2224/45015 ,  H01L2924/207

Abstract: A memory card includes a substrate and a resin-molded layer. The substrate includes contact pads that are on a second face thereof for communication with a card reader. Semiconductor chips are on a first face of the substrate and electrically connected to the contact pads through bonding wires and circuit wiring. The resin-molded layer is on the first face and covers the chips.

公开(公告)号：US06483038B2

公开(公告)日：2002-11-19

申请号：US09865045

申请日：2001-05-23

Applicant: Joon-ki Lee ,  Woong-ky Ha ,  Young-Hee Song ,  Young-shin Kwon

Inventor： Joon-ki Lee ,  Woong-ky Ha ,  Young-Hee Song ,  Young-shin Kwon

IPC: H05K103

CPC classification number: H01L23/5388 ,  G06K19/07743 ,  H01L23/10 ,  H01L24/45 ,  H01L24/48 ,  H01L2224/451 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2924/01078 ,  H01L2924/01079 ,  H01L2924/181 ,  H01L2924/19041 ,  Y10S439/946 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

Abstract: The present invention provides a memory card having a reduced size as much as that of the package. The memory card includes electrical contact pads disposed in a single row on one end of the memory card. The memory card further comprises a card base and a semiconductor package. The card base has a first surface and a second surface, the first surface having a cavity formed thereon. The semiconductor package comprises a substrate, memory chips, and a molding resin layer, and is mounted on the cavity so that the external contact pads are exposed. Circuit wirings are formed on an inner surface of the substrate and electrically connected to the external contact pads that are formed on an outer surface of the substrate.

公开(公告)号：US20110142453A1

公开(公告)日：2011-06-16

申请号：US12951446

申请日：2010-11-22

Applicant: Jyung Chan Lee ,  Joon Ki Lee ,  Sae-Kyoung Kang ,  Kwangjoon Kim

Inventor： Jyung Chan Lee ,  Joon Ki Lee ,  Sae-Kyoung Kang ,  Kwangjoon Kim

IPC: H04B10/00

CPC classification number: H04B10/40

Abstract: An optical transceiver includes: a transmission unit configured to convert a first electrical signal into a first optical signal and transmit the converted first optical signal; a first power supply unit configured to supply power to the transmission unit; and a controller configured to control the first power supply unit, wherein the controller controls an operation of the first power supply unit according to whether or not the first electrical signal is inputted to the transmission unit.

Abstract translation: 光收发器包括：发送单元，被配置为将第一电信号转换为第一光信号并发送经转换的第一光信号; 配置为向所述传输单元供电的第一电源单元; 以及控制器，被配置为控制所述第一电源单元，其中所述控制器根据所述第一电信号是否输入到所述传输单元来控制所述第一电源单元的操作。

公开(公告)号：US20100150575A1

公开(公告)日：2010-06-17

申请号：US12550753

申请日：2009-08-31

Applicant: Jyung Chan Lee ,  Joon Ki Lee ,  Kwangjoon Kim

Inventor： Jyung Chan Lee ,  Joon Ki Lee ,  Kwangjoon Kim

IPC: H04B10/04

CPC classification number: H04B10/50575 ,  G02F2203/20 ,  G02F2203/21

Abstract: An optical transmitter is provided which optimizes DC bias voltage input to an optical modulator employing a duo-binary modulation scheme. The optical transmitter including a signal combiner which converts an electrical signal for optical transmission into a high-speed electrical signal, and an optical modulator which receives and modulates the high-speed electrical signal from the signal combiner further includes a frequency divider to divide frequency of a sinusoidal watchdog clock signal from the signal combiner and to output the divided signal to be added to direct current (DC) bias voltage input to the optical modulator; and a bias voltage modifier to adjust the DC bias voltage by analyzing the modulated electrical signal from the optical modulator. Accordingly, it is possible to conveniently optimize the DC bias voltage with a simple design.

Abstract translation: 提供一种光发射器，其优化输入到采用二进制二进制调制方案的光调制器的DC偏置电压。 包括将光传输用电信号转换为高速电信号的信号组合器的光发送器和从信号组合器接收并调制高速电信号的光调制器还包括分频器， 来自信号组合器的正弦看门狗时钟信号，并输出被分配的信号以加到输入到光调制器的直流（DC）偏置电压; 和偏置电压调节器，通过分析来自光调制器的调制电信号来调节直流偏置电压。 因此，可以以简单的设计方便地优化DC偏置电压。