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    Apparatus and method for wavelength conversion and clock signal extraction using semiconductor optical amplifiers
    1.
    发明申请
    Apparatus and method for wavelength conversion and clock signal extraction using semiconductor optical amplifiers 有权

    公开(公告)号：US20070070493A1

    公开(公告)日：2007-03-29

    申请号：US11491646

    申请日：2006-07-24

    申请人： Dong Kim ,  Min Jeon ,  Young Leem ,  Eun Sim ,  Kyung Park ,  Sung Kim

    发明人： Dong Kim ,  Min Jeon ,  Young Leem ,  Eun Sim ,  Kyung Park ,  Sung Kim

    IPC分类号： H01S3/00

    CPC分类号： H04B10/299

    摘要： Provided is an apparatus and method for simultaneous optical wavelength conversion and optical clock signal extraction using semiconductor optical amplifiers (SOAs). The apparatus includes: a wavelength converter receiving a pump beam having input information and a probe beam having a different wavelength from the pump beam, and outputting the pump beam with an overshoot shifted to a red wavelength and an undershoot shifted to a blue wavelength due to non-linear characteristics and self-phase modulation of semiconductor optical amplifiers (SOAs) and the probe beam delivered the input information from the pump beam; an optical divider dividing output paths of the probe beam to which the input information has been delivered and the pump beam having the overshoot and the undershoot; a converted-wavelength extractor filtering the probe beam received from the optical divider; and a clock data regenerator obtaining a pseudo return-to-zero (PRZ) signal from the pump beam received from the optical divider and extracting a clock signal from the PRZ signal. The apparatus and method can simultaneously perform wavelength conversion and optical clock signal extraction on an NRZ signal using an optical method, without converting the NRZ signal into an electrical signal.

    System for all-optical clock recovery
    3.
    发明申请
    System for all-optical clock recovery 审中-公开
    全光时钟恢复系统

    公开(公告)号：US20050141898A1

    公开(公告)日：2005-06-30

    申请号：US11004368

    申请日：2004-12-03

    申请人： Dae Yee ,  Young Leem ,  Kyung Park ,  Dong Kim ,  Sung Kim

    发明人： Dae Yee ,  Young Leem ,  Kyung Park ,  Dong Kim ,  Sung Kim

    IPC分类号： H04B10/00 ,  H04B10/17

    CPC分类号： H04B10/299

    摘要： Provided is a system for all-optical clock recovery that can reduce a pattern effect and timing jitter of an optical clock. The system includes an optical signal controller that controls the magnitude and polarization state of an optical signal, a laser unit that receives the optical signal output from the optical signal controller and outputs an optical clock, and an optical regeneration loop that controls the phase, polarization, and magnitude of the optical clock output from the laser unit so as to provide the laser unit with the optical clock, the phase, polarization, and magnitude of which are controlled, and the optical signal output from the optical signal controller.

    摘要翻译： 提供了一种用于全光时钟恢复的系统，其可以减少光时钟的图案效应和定时抖动。 该系统包括控制光信号的幅度和偏振状态的光信号控制器，接收从光信号控制器输出的光信号并输出​​光时钟的激光单元，以及控制相位极化的光再生回路 以及从激光单元输出的光时钟的大小，以便为激光单元提供控制其相位，极化和幅度的光时钟，以及从光信号控制器输出的光信号。

    Optical semiconductor device
    4.
    发明申请
    Optical semiconductor device 审中-公开
    光半导体器件

    公开(公告)号：US20060133440A1

    公开(公告)日：2006-06-22

    申请号：US11170813

    申请日：2005-06-30

    申请人： Ki Kim ,  Chul Lee ,  Dong Lee ,  Jung Song ,  Eun Sim ,  Sung Kim ,  Yong Baek

    发明人： Ki Kim ,  Chul Lee ,  Dong Lee ,  Jung Song ,  Eun Sim ,  Sung Kim ,  Yong Baek

    IPC分类号： H01S5/20

    CPC分类号： H01S5/3434 ,  B82Y20/00 ,  H01L33/06 ,  H01S5/2004 ,  H01S5/2009 ,  H01S5/3403 ,  H01S5/34373

    摘要： Provided is an optical semiconductor device including: an active layer having at least one quantum well layer and at least one barrier layer; a clad layer formed adjacent to the active layer; and a tunneling barrier layer formed between the active layer and the clad layer to be connected to the quantum well layer and formed of a material having a band-gap energy larger than the barrier layer, whereby it is possible to improve the drive characteristics at a high temperature and a high drive current by increasing a confinement effect of carriers such as electrons and holes in the active layer.

    摘要翻译： 本发明提供一种光半导体装置，包括：有源层，具有至少一个量子阱层和至少一个阻挡层; 与活性层相邻形成的覆层; 以及形成在有源层和包层之间的隧道势垒层，以与量子阱层连接并由具有比阻挡层大的带隙能量的材料形成，从而可以提高在 通过增加载体如电子和空穴在活性层中的约束效应，可以提高高温和高驱动电流。

    Method, system and recording medium for collecting contents usage information
    6.
    发明授权
    Method, system and recording medium for collecting contents usage information 有权
    用于收集内容使用信息的方法，系统和记录介质

    公开(公告)号：US08583782B2

    公开(公告)日：2013-11-12

    申请号：US12529265

    申请日：2008-06-11

    申请人： Kyung Park ,  Jongkwan Park ,  Kyoungchan Sohn ,  Sung Kim

    发明人： Kyung Park ,  Jongkwan Park ,  Kyoungchan Sohn ,  Sung Kim

    IPC分类号： G06F15/173 ,  H04M11/00

    CPC分类号： H04L67/22 ,  H04L43/0876 ,  H04L67/04 ,  H04L67/26 ,  H04L67/306

    摘要： Disclosed is a method, a system, and a recording medium for collecting content usage information. The method includes the steps of transmitting a usage tracking report message from a DCD client of the terminal to the DCD server; and receiving the usage tracking report message in the DCD server. The usage tracking report message includes first information for identifying a corresponding session, second information including a transaction identifier, third information for identifying a corresponding application, and fourth information including content usage information. Advantageously, the DCD server collects content usage information so that users are provided with highly-preferred contents. The fact that the DCD server collects content usage information and transmits no contents unnecessary to users avoids wasting the network bandwidth and improves content delivery efficiency of the terminals, CP, and DCD server.

    摘要翻译： 公开了一种用于收集内容使用信息的方法，系统和记录介质。 该方法包括以下步骤：将来自终端的DCD客户端的使用跟踪报告消息发送到DCD服务器; 并在DCD服务器中接收使用情况跟踪报告消息。 使用跟踪报告消息包括用于识别对应会话的第一信息，包括交易标识符的第二信息，用于识别相应应用的第三信息，以及包括内容使用信息的第四信息。 有利地，DCD服务器收集内容使用信息，使得向用户提供高度优选的内容。 DCD服务器收集内容使用信息，传送不需要的内容的事实避免了浪费网络带宽，提高终端，CP和DCD服务器的内容传送效率。

    METHOD, SYSTEM AND RECORDING MEDIUM FOR COLLECTING CONTENTS USAGE INFORMATION
    7.
    发明申请
    METHOD, SYSTEM AND RECORDING MEDIUM FOR COLLECTING CONTENTS USAGE INFORMATION 有权
    收集内容使用信息的方法，系统和记录介质

    公开(公告)号：US20100115091A1

    公开(公告)日：2010-05-06

    申请号：US12529265

    申请日：2008-06-11

    申请人： Kyung Park ,  Jongkwan Park ,  Kyoungchan Sohn ,  Sung Kim

    发明人： Kyung Park ,  Jongkwan Park ,  Kyoungchan Sohn ,  Sung Kim

    IPC分类号： G06F15/173

    CPC分类号： H04L67/22 ,  H04L43/0876 ,  H04L67/04 ,  H04L67/26 ,  H04L67/306

    摘要： Disclosed is a method, a system, and a recording medium for collecting content usage information. The method includes the steps of transmitting a usage tracking report message from a DCD client of the terminal to the DCD server; and receiving the usage tracking report message in the DCD server. The usage tracking report message includes first information for identifying a corresponding session, second information including a transaction identifier, third information for identifying a corresponding application, and fourth information including content usage information. Advantageously, the DCD server collects content usage information so that users are provided with highly-preferred contents. The fact that the DCD server collects content usage information and transmits no contents unnecessary to users avoids wasting the network bandwidth and improves content delivery efficiency of the terminals, CP, and DCD server.

    摘要翻译： 公开了一种用于收集内容使用信息的方法，系统和记录介质。 该方法包括以下步骤：将来自终端的DCD客户端的使用跟踪报告消息发送到DCD服务器; 并在DCD服务器中接收使用情况跟踪报告消息。 使用跟踪报告消息包括用于识别对应会话的第一信息，包括交易标识符的第二信息，用于识别相应应用的第三信息，以及包括内容使用信息的第四信息。 有利地，DCD服务器收集内容使用信息，使得向用户提供高度优选的内容。 DCD服务器收集内容使用信息，传送不需要的内容的事实避免了浪费网络带宽，提高终端，CP和DCD服务器的内容传送效率。

    CONTENT UPDATE FROM A SERVER TO A CLIENT TERMINAL IN A DYNAMIC CONTENT DELIVERY (DCD) SYSTEM
    8.
    发明申请
    CONTENT UPDATE FROM A SERVER TO A CLIENT TERMINAL IN A DYNAMIC CONTENT DELIVERY (DCD) SYSTEM 有权
    从动态内容交付（DCD）系统的服务器到客户终端的内容更新

    公开(公告)号：US20100070595A1

    公开(公告)日：2010-03-18

    申请号：US12529251

    申请日：2008-06-11

    申请人： Kyung Park ,  Jongkwan Park ,  Sung Kim ,  Kyoungchan Sohn

    发明人： Kyung Park ,  Jongkwan Park ,  Sung Kim ,  Kyoungchan Sohn

    IPC分类号： G06F15/16

    CPC分类号： H04L29/08954 ,  G06F17/30368 ,  G06F17/30377 ,  H04L67/02 ,  H04L67/26 ,  H04L67/2823 ,  H04L67/306 ,  H04N7/173 ,  H04N21/25891 ,  H04N21/26291 ,  H04N21/6332 ,  H04N21/6377

    摘要： Disclosed is a method for content update from a server to a client terminal in a dynamic content delivery (DCD) system, comprising receiving a first message containing an identification information of one or more contents available for update from the server by the client terminal, sending a second message containing the identification information of an specific content to be updated among the one or more contents to request content update to the server; and receiving a third message containing the content or the address thereof corresponding to the identification information contained in the second message to respond to the second message.

    摘要翻译： 公开了一种用于在动态内容传送（DCD）系统中从服务器到客户终端的内容更新的方法，包括从客户终端接收包含可从服务器更新的一个或多个内容的标识信息的第一消息，发送 第二消息，其包含要在一个或多个内容中更新的特定内容的标识信息，以请求对服务器的内容更新; 以及接收包含与包含在第二消息中的识别信息相对应的内容或其地址的第三消息以响应第二消息。

    Shadow mask for cathode ray tube and manufacturing method thereof
    9.
    发明申请
    Shadow mask for cathode ray tube and manufacturing method thereof 审中-公开
    阴极射线管阴影掩模及其制造方法

    公开(公告)号：US20050035702A1

    公开(公告)日：2005-02-17

    申请号：US10902386

    申请日：2004-07-30

    申请人： Sang Kim ,  Sung Kim ,  Dong Kim

    发明人： Sang Kim ,  Sung Kim ,  Dong Kim

    IPC分类号： H01J9/12 ,  H01J9/14 ,  H01J29/07 ,  H01J29/81

    CPC分类号： H01J29/07 ,  H01J9/142 ,  H01J2229/0733

    摘要： Disclosed is a cathode ray tube comprising a panel of which inner surface is coated with a fluorescent screen, a funnel connected to the panel, an electron gun housed in the funnel, emitting electron beams, a deflection yoke for deflecting the electron beams, and a shadow mask for discriminating the electron beams in colors, wherein the shadow mask is made of AK (Aluminum Killed) steel, a Fe—Ni alloy layer is deposited on at least one surface of the shadow mask, and an electron reflecting film is formed on the shadow mask opposed to the electron gun.

    摘要翻译： 公开了一种阴极射线管，其包括内表面涂有荧光屏的面板，连接到面板的漏斗，容纳在漏斗中的电子枪，发射电子束，用于偏转电子束的偏转线圈和 用于鉴别颜色的电子束的荫罩，其中荫罩由AK（Aluminium Killed）钢制成，Fe-Ni合金层沉积在荫罩的至少一个表面上，并且电子反射膜形成在 阴影面对电子枪。