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1. 发明申请

US20060133824A1 Apparatus for stabilizing wavelength of optical source for optical communications 审中-公开
标题翻译：用于稳定光通信光源波长的装置
公开(公告)号：US20060133824A1
公开(公告)日：2006-06-22
申请号：US11264384
申请日：2005-11-02
申请人： Seung Myong , Youn Jang , Kwang Kim , Hyun Lee
发明人： Seung Myong , Youn Jang , Kwang Kim , Hyun Lee
IPC分类号： H04B10/04
CPC分类号： H04B10/572
摘要： Provided is an apparatus for stabilizing a wavelength for optical communications which includes a digital control circuit unit and an analog control circuit unit to stabilize a wavelength that may be shifted at the time of driving an optical source for optical communications. The wavelength can be precisely controlled according to a modulation format using the optical source for optical communications, and thus performance can be stabilized.
摘要翻译：提供了一种用于稳定光通信的波长的装置，其包括数字控制电路单元和模拟控制电路单元，以稳定在驱动用于光通信的光源时可能偏移的波长。可以使用光通信用光源根据调制格式精确地控制波长，从而可以稳定性能。

2. 发明申请

US20050128555A1 Apparatus and method for automatically correcting bias voltage for carrier suppressed pulse generating modulator 失效
标题翻译：用于自动校正载波抑制脉冲发生调制器偏置电压的装置和方法
公开(公告)号：US20050128555A1
公开(公告)日：2005-06-16
申请号：US10863741
申请日：2004-06-07
申请人： Youn Jang , Kwang Kim , Jyung Lee , Seung Myong
发明人： Youn Jang , Kwang Kim , Jyung Lee , Seung Myong
IPC分类号： H04B10/18 , G02B26/00 , G02F1/00 , G02F1/01 , H04B10/155
CPC分类号： H04B10/50595 , G02F1/0123 , H04B10/505 , H04B10/5051 , H04B10/50575 , H04B10/508 , H04B10/5162 , H04B10/5165 , H04B2210/003
摘要： The present invention relates to an apparatus and method for automatically correcting a bias voltage for a carrier suppressed pulse generating modulator using the phase distribution of the output pulses, which automatically detects an optimal bias voltage for the carrier suppressed pulse generating modulator and stabilizes the bias voltage. In the bias voltage automatic correction method and apparatus of the present invention, an optimal bias voltage for the modulator is set to a bias voltage that is obtained when mean power of an optical signal output from the modulator is highest. The varying direction of the bias voltage is detected on the basis of the phase variations in the output optical signal of the modulator according to the bias voltage variations is detected, and the bias voltage is corrected oppositely to the varying direction of the bias voltage.
摘要翻译：本发明涉及一种使用输出脉冲的相位分布自动校正载波抑制脉冲发生调制器的偏置电压的装置和方法，其自动检测载波抑制脉冲发生调制器的最佳偏置电压并稳定偏置电压。在本发明的偏置电压自动校正方法和装置中，将调制器的最佳偏置电压设置为当从调制器输出的光信号的平均功率最高时获得的偏置电压。根据检测到的偏置电压变化，基于调制器的输出光信号的相位变化来检测偏置电压的变化方向，并且偏置电压与偏置电压的变化方向相反地校正。

3. 发明申请

US20050134398A1 Tunable high-order bessel low pass filter 有权
标题翻译：可调式高阶贝塞尔低通滤波器
公开(公告)号：US20050134398A1
公开(公告)日：2005-06-23
申请号：US10858925
申请日：2004-06-01
申请人： Seung Myong , Kwang Kim , Jyung Lee , Sang Lim
发明人： Seung Myong , Kwang Kim , Jyung Lee , Sang Lim
IPC分类号： H03H9/46 , H03H7/12
CPC分类号： H03H7/12
摘要： A tunable high-order Bessel low pass filter which is applied to a multi-rate duobinary generation system of an optical communication system. The tunable Bessel low pass filter comprises a variable inductor circuit including a plurality of variable inductors connected in series between an input signal terminal and an output signal terminal and controlled respectively by corresponding inductance control signals, a variable capacitor circuit including a plurality of variable capacitors connected respectively between corresponding connection nodes of the plurality of variable inductors of the variable inductor circuit and a ground terminal and controlled respectively by corresponding capacitance control signals, and a variable capacitor/inductor controller for outputting the corresponding capacitance control signals to the variable capacitors of the variable capacitor circuit and the corresponding inductance control signals to the variable inductors of the variable inductor circuit on the basis of preset values according to a given data rate, respectively. When the data rate of an application system is changed, the tunable Bessel low pass filter controls its filtering characteristics most appropriately to the changed data rate, so as to extend its application range and enhance performance and efficiency of the application system.
摘要翻译：一种可调谐的高阶贝塞尔低通滤波器，适用于光通信系统的多速率二进制生成系统。可调谐贝塞尔低通滤波器包括可变电感器电路，其包括串联连接在输入信号端子和输出信号端子之间的多个可变电感器，分别由相应的电感控制信号控制，可变电容器电路包括多个连接的可变电容器分别在可变电感器电路的多个可变电感器的相应连接节点和接地端子之间分别由相应的电容控制信号控制;以及可变电容器/电感器控制器，用于将相应的电容控制信号输出到变量的可变电容器电容器电路和相应的电感控制信号分别根据给定的数据速率在可变电感器的可变电感器的基础上进行预设值。当应用系统的数据速率发生变化时，可调式贝塞尔低通滤波器最适合改变数据速率控制其滤波特性，从而扩展其应用范围，提高应用系统的性能和效率。

4. 发明申请

US20050135818A1 Apparatus for controlling decision threshold voltage to optical receiver 失效
标题翻译：用于控制光接收机的判定阈值电压的装置
公开(公告)号：US20050135818A1
公开(公告)日：2005-06-23
申请号：US10815064
申请日：2004-03-31
申请人： Jyung Lee , Seung Myong , Joon Lee , Kwang Kim
发明人： Jyung Lee , Seung Myong , Joon Lee , Kwang Kim
IPC分类号： H04B10/06 , H04B10/158
CPC分类号： H04B10/695
摘要： 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.
摘要翻译：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。

5. 发明申请

US20050128556A1 Apparatus and method for stabilizing bias voltage for pulse generating modulator 失效
标题翻译：用于稳定脉冲发生调制器的偏置电压的装置和方法
公开(公告)号：US20050128556A1
公开(公告)日：2005-06-16
申请号：US10826015
申请日：2004-04-16
申请人： Youn Jang , Kwang Kim , Jin Han
发明人： Youn Jang , Kwang Kim , Jin Han
IPC分类号： H04B10/18 , G02F1/01 , G02F1/225 , G02F1/03
CPC分类号： G02F1/0123 , G02F1/225
摘要： The present invention relates to an apparatus and method for stabilizing a bias voltage for a pulse generating modulator, which can automatically detect an optimal bias voltage for an external modulator, which is used in RZ or CSRZ modulation of an optical transmission signal using NRZ data to generate a reference pulse optical signal, and maintain the optimal bias voltage. In the bias voltage stabilizing method of the present invention, an output signal of the external modulator, to which the bias voltage to be stabilized is applied, is detected, a drive clock signal applied to the external modulator is detected, a mean output value of the products obtained by the multiplication of the output signal and the clock signal is periodically examined, and the bias voltage is adjusted so that the mean output value becomes “0”.
摘要翻译：本发明涉及一种用于稳定脉冲发生调制器的偏置电压的装置和方法，该装置和方法可以自动检测用于外部调制器的最佳偏置电压，其用于使用NRZ数据的光传输信号的RZ或CSRZ调制产生参考脉冲光信号，并保持最佳偏置电压。在本发明的偏压稳定化方法中，检测到施加了要稳定的偏置电压的外部调制器的输出信号，检测到施加到外部调制器的驱动时钟信号，平均输出值周期性地检查通过乘以输出信号和时钟信号而获得的乘积，并调整偏置电压，使得平均输出值变为“0”。

6. 发明申请

US20070134003A1 Optical transceiver case 审中-公开
标题翻译：光收发机外壳
公开(公告)号：US20070134003A1
公开(公告)日：2007-06-14
申请号：US11405765
申请日：2006-04-18
申请人： Jyung Lee , Jun Lee , Hyun Lee , Kwang Kim
发明人： Jyung Lee , Jun Lee , Hyun Lee , Kwang Kim
IPC分类号： H04B10/00
CPC分类号： G02B6/4201 , G02B6/4256 , G02B6/4266 , G02B6/428
摘要： An optical transceiver case is provided. The optical transceiver case has an optical transmission/reception device and a PCB that operates the optical transmission/reception device. The optical transceiver case includes a lower plate and an upper plate. The lower plate supports the optical transmission/reception device and the printed circuit board, and includes handle grooves formed on both external sides of the lower plate to allow the optical transceiver case to be mounted/detached to/from an optical transmission/reception system's board. The upper plate is coupled to the lower plate to mount the optical transmission/reception device and the printed circuit board, and includes a protuberance embossed on an external upper surface of the upper plate in order to discharge heat generated from the optical transmission/reception device and the PCB to the outside. The optical transceiver case is easily mounted detached to/from on optical transmission/reception system's board and maintains a constant internal temperature.
摘要翻译：提供光收发机外壳。光收发机壳体具有操作光发送/接收装置的光发送/接收装置和PCB。光收发机壳体包括下板和上板。下板支撑光学发送/接收装置和印刷电路板，并且包括形成在下板的两个外侧上的手柄槽，以允许光收发器壳体从光学发送/接收系统板安装/分离。上板联接到下板以安装光学传输/接收装置和印刷电路板，并且包括浮雕在上板的外部上表面上的突起，以便排出从光发送/接收装置产生的热量和PCB到外面。光收发机外壳很容易安装在光传输/接收系统板上，从而保持恒定的内部温度。

7. 发明申请

US20060120664A1 Optical transmission apparatus and method 有权
公开(公告)号：US20060120664A1
公开(公告)日：2006-06-08
申请号：US11289906
申请日：2005-11-29
申请人： Hyun Lee , Kwang Kim
发明人： Hyun Lee , Kwang Kim
IPC分类号： G02B6/28
CPC分类号： H04J14/0227 , H04B10/40 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： Provided are an optical transmission apparatus and method using a light source for wavelength division multiplexing (WDM) optical communication that employs a Fabry-Perot laser diode (F-P LD) whose output wavelength is locked by an externally injected incoherent light, a multifiber, and a waveguide grating router. The light transmission apparatus includes: an incoherent light source (ILS) outputting incoherent light; a plurality of circulators (CIRs) connected to the ILS, receiving the incoherent light from the ILS, and outputting first optical signals; a first waveguide grating router (WGR) outputting the first optical signals output from each of the CIRs to optical fibers corresponding to each of the CIRs, and outputting second optical signals input from the optical fibers to the corresponding CIRs; a plurality of second WGRs corresponding to each of the CIRs, and demodulating the second optical signals output from each of the plurality of CIRs; and a plurality of receivers connected to the plurality of the second WGRs, and inputting the demultiplexed optical signals output from the plurality of second WGRs. A plurality of light sources for WDM optical communication whose output wavelength is locked can increase size and economical efficiency of a light transmission system (subscriber). The N×N WGR can produce a conventional light transmission system and accommodate many subscribers.

8. 发明申请

US20080040604A1 System and method for providing authenticated encryption in GPON network 失效
标题翻译：在GPON网络中提供认证加密的系统和方法
公开(公告)号：US20080040604A1
公开(公告)日：2008-02-14
申请号：US11589031
申请日：2006-10-26
申请人： Kwang Kim , Yool Kwon , Bong Kim
发明人： Kwang Kim , Yool Kwon , Bong Kim
IPC分类号： H04L9/00
CPC分类号： H04L63/0428 , H04L63/08
摘要： A system and a method for providing a secured transmission through an authenticated encryption for each ONU in downlink transmission of an OLT in GPON are provided. The GPON system includes an OLT for generating a GTC downlink frame by receiving data from an external service provider and ONUs for receiving the GTC downlink frame from the OLT and processing the received GTC downlink frame. The OLT performs the authenticated encryption for the generated GTC downlink frame according to the ONU by including an authentication generator and the ONU determines whether the GTC downlink frame is allowed to be processed or not by checking the authentication of the received GTC downlink frame through an authentication checker.
摘要翻译：提供了一种用于通过GPON的OLT的下行链路传输中的每个ONU通过认证加密来提供安全传输的系统和方法。 GPON系统包括通过从外部服务提供商接收数据和从OLT接收GTC下行链路帧并处理接收到的GTC下行链路帧来生成GTC下行链路帧的OLT。 OLT通过包括认证发生器对所生成的GTC下行链路帧进行认证加密，并且ONU通过认证检查接收的GTC下行链路帧的认证来确定GTC下行链路帧是否被允许被处理检查员

9. 发明申请

US20070225908A1 Mobile terminal and method for DMB-based navigation 审中-公开
标题翻译：移动终端和DMB导航方法
公开(公告)号：US20070225908A1
公开(公告)日：2007-09-27
申请号：US11707762
申请日：2007-02-16
申请人： Jong Kim , Jin Kim , Kwang Kim , Hyun Min , Sung Yang , Suk Jung , Hye Yang
发明人： Jong Kim , Jin Kim , Kwang Kim , Hyun Min , Sung Yang , Suk Jung , Hye Yang
IPC分类号： G01C21/30 , G01C21/32
CPC分类号： G01C21/3691 , G08G1/092 , G08G1/096827
摘要： A mobile terminal executes a navigation function by receiving Transport Protocol Experts Group (TPEG) traffic information through a Digital Multimedia Broadcasting (DMB) network. This DMB-based mobile terminal receives and decodes TPEG data at a separate second processor different from a conventional first processor. Further, the DMB-based mobile terminal may execute a calculation of an optimum route at the second processor. The terminal and a related method reduce the processing load of the first processor, which causes a decrease in the response time to a user's navigation request and improves a user's convenience.
摘要翻译：移动终端通过数字多媒体广播（DMB）网络接收传输协议专家组（TPEG）业务信息来执行导航功能。该基于DMB的移动终端在与传统的第一处理器不同的单独的第二处理器处接收和解码TPEG数据。此外，基于DMB的移动终端可以在第二处理器处执行最佳路由的计算。终端和相关方法减少了第一处理器的处理负担，这导致了对用户导航请求的响应时间的减少，并提高了用户的便利性。

10. 发明申请

US20070186380A1 Hinge assembly and mobile device having the same 有权
标题翻译：铰链组件和具有相同功能的移动设备
公开(公告)号：US20070186380A1
公开(公告)日：2007-08-16
申请号：US11705780
申请日：2007-02-14
申请人： Yun Kim , Kwang Kim , Seung Lee , Hyun Yang , Ji Lee , Jeong Lee
发明人： Yun Kim , Kwang Kim , Seung Lee , Hyun Yang , Ji Lee , Jeong Lee
IPC分类号： E05D7/06
CPC分类号： G06F1/1624 , E05D15/582 , E05Y2900/606 , G06F1/1616 , G06F1/1681 , G06F1/1683 , Y10T16/5323 , Y10T16/544 , Y10T16/5443 , Y10T16/5444 , Y10T16/5448 , Y10T16/545 , Y10T16/5457
摘要： Disclosed are a hinge assembly and a mobile device having the hinge assembly. In the mobile device, a rotation portion 14 slides and rotates on a base portion 10, so as to be inclined to the base portion 10. For this reason, the rotation portion 14 is connected to the base portion by means of the hinge assembly 20 so as to slide and rotate on the base portion 10. The rotation portion 14 slides on the base portion by a predetermined distance, and then rotates to be inclined at a desired angle with respect to the base portion 10. The rotation portion 14 easily rotates with respect to the base portion of the mobile device, so that the status of the mobile device can be easily converted. Further, when the status of the mobile device is converted, the front, rear, left and right of a display screen is not changed. As a result, the mobile device should not have a structure of changing a display direction of the display screen. Further, there is an advantage in that an electric connection between the base portion and the rotation portion by means of a connection link mechanism can be stably achieved.
摘要翻译：公开了具有铰链组件的铰链组件和移动装置。在移动装置中，旋转部14在基部10上滑动旋转，从而与基部10倾斜。为此，旋转部分14通过铰链组件20连接到基部，以便在基部10上滑动和旋转。旋转部分14在基部上滑动预定距离，然后旋转以相对于基部10倾斜所需的角度。旋转部分14相对于移动设备的基部容易旋转，从而可以容易地转换移动设备的状态。此外，当移动设备的状态被转换时，显示屏幕的前，后，左，右不改变。结果，移动设备不应该具有改变显示屏的显示方向的结构。另外，通过连接机构，能够稳定地实现基部与旋转部之间的电连接。

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