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公开(公告)号：KR1020130093787A
公开(公告)日：2013-08-23
申请号：KR1020110147648
申请日：2011-12-30
Applicant: 한국전자통신연구원
CPC classification number: H04J14/0278 , H04J14/02 , H04J14/0246 , H04J14/0247 , H04J14/025 , H04J14/0252 , H04J14/0282 , H04J14/0298 , H04J2014/0253
Abstract: PURPOSE: A hybrid passive optical network (PON) system is provided to render a hybrid wavelength division multiplexing (WDM)/time division multiplexing (TDM) passive optical network (PON) system using an orthogonal frequency division multiplexing (OFDM) optical modem. CONSTITUTION: A seed light source (105) outputs a seed light having a predetermined wavelength. An optical transmitter modulates the seed light generated from the seed light source using a reflective modulator and transmits a modulated OFDM downstream optical signal to at least one optical network unit (ONU). An optical receiver receives an OFDM upstream signal from the at lest one ONU.
Abstract translation: 目的：提供一种混合无源光网络（PON）系统，用于使用正交频分复用（OFDM）光调制解调器来形成混合波分复用（WDM）/时分复用（TDM）无源光网络（PON）系统。 构成：种子光源（105）输出具有预定波长的种子光。 光发射机使用反射调制器调制从种子光源产生的种子光，并将调制的OFDM下行光信号发射到至少一个光网络单元（ONU）。 光接收器从最少的一个ONU接收OFDM上行信号。
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102.发明公开
公开(公告)号：KR1020130033398A
公开(公告)日：2013-04-03
申请号：KR1020130017215
申请日：2013-02-18
Applicant: 한국전자통신연구원
IPC: H04B10/50 , H04B10/2581
Abstract: PURPOSE: An optical transmission device in a WDM-PON(Wavelength Division Multiplexing-Passive Optical Network) and an optical transmission method thereof are provided to reduce the reflection sensitivity in an optical link by extending the line width of an output spectrum in a laser diode. CONSTITUTION: A laser diode(10) generates an optical signal. The laser diode uses the generated optical signal as a seed light. A control unit(20) controls to output the optical signal by applying direct bias and an RF(Radio Frequency) signal to the laser diode in the threshold current of the laser diode. The control unit extends the line width of an output spectrum in the laser diode. [Reference numerals] (10) Laser diode; (200) Input control unit; (210) Output control unit;
Abstract translation: 目的：提供WDM-PON（波分复用无源光网络）及其光传输方法中的光传输装置，通过扩展激光二极管中的输出光谱的线宽来减小光链路中的反射灵敏度 。 构成：激光二极管（10）产生光信号。 激光二极管使用所产生的光信号作为种子光。 控制单元（20）通过在激光二极管的阈值电流中向激光二极管施加直接偏压和RF（射频）信号来控制输出光信号。 控制单元延长激光二极管中输出光谱的线宽。 （附图标记）（10）激光二极管; （200）输入控制单元; （210）输出控制单元;
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公开(公告)号：KR101219167B1
公开(公告)日：2013-01-18
申请号：KR1020090032218
申请日：2009-04-14
Applicant: 한국전자통신연구원
IPC: H04B10/035 , H04B10/291 , H04B10/2581
Abstract: 반사형 반도체 광 증폭기 제어방법 및 그 제어장치가 개시된다. 본 발명의 일 실시예에 따른 반사형 반도체 광 증폭기 제어장치는, 반사형 반도체 광 증폭기를 동작시키는 동작온도를 제어하여 광원이 발진하기 시작하는 문턱전류가 씨앗광의 파장에 상관없이 일정하도록 설정하고, 동작전류를 제어하여 씨앗광의 파장별로 다르게 출력되는 광 특성을 일정하게 조정한다.
파장분할 다중방식 기반 수동형 광가입자망, 반사형 반도체 광 증폭기, 소광비-
公开(公告)号：KR1020120133159A
公开(公告)日：2012-12-10
申请号：KR1020110051688
申请日：2011-05-30
Applicant: 한국전자통신연구원
CPC classification number: H01S5/0683 , G05F1/463 , G05F1/567
Abstract: PURPOSE: A current control device and method of an optical transmitter are provided to maximize energy efficiency by assuring uncooled operation of a light source. CONSTITUTION: A temperature reference control signal generator(330) generates a current control signal according to temperature variation in a light source. A current controller generates a variable current according to the current control signal. The current control signal includes a bias current control signal and a modulation current control signal. The current controller includes a bias current controller(310) and a modulation current controller(320). [Reference numerals] (310) Bias current controller; (311) Variable bias current generator; (312) Bias current corrector; (320) Modulation current controller; (321) Variable modulation current generator; (322) Modulation current corrector; (330) Temperature reference control signal generator; (331) Temperature change detector; (332) Bias current control signal generator; (333) Modulation current control signal generator
Abstract translation: 目的：提供光发射机的电流控制装置和方法，以通过确保光源的非冷却操作来最大限度地提高能量效率。 构成：温度基准控制信号发生器（330）根据光源的温度变化产生电流控制信号。 电流控制器根据电流控制信号产生可变电流。 电流控制信号包括偏置电流控制信号和调制电流控制信号。 电流控制器包括偏置电流控制器（310）和调制电流控制器（320）。 （参考号）（310）偏置电流控制器; （311）可变偏置电流发生器; （312）偏置电流校正器; （320）调制电流控制器; （321）可变调制电流发生器; （322）调制电流校正器; （330）温度参考控制信号发生器; （331）温度变化检测器; （332）偏置电流控制信号发生器; （333）调制电流控制信号发生器
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公开(公告)号：KR1020120072029A
公开(公告)日：2012-07-03
申请号：KR1020100133792
申请日：2010-12-23
Applicant: 한국전자통신연구원
IPC: H01S5/026
CPC classification number: H04J14/0279 , H04B10/506 , H04J14/0258 , H04J14/0272
Abstract: PURPOSE: A wavelength non-dependence optical source operating apparatus is provided to optimally operate wavelength non-dependence optical sources based on the identified wavelength values by using a wavelength identification signal. CONSTITUTION: A seed optical signal generation unit(130) creates one or more seed optical signals based on wavelength identification signals(121~123). A wavelength optical detecting unit(170) detects the wavelength identification signals from the created seed optical signals. An extraction unit(180) extracts wavelength values matched with the detected wavelength identification signal. The extraction unit extracts the operation condition of a wavelength-independent optical source matched with the extracted wavelength values. An operating unit(190) operates the wavelength non-dependence optical sources.
Abstract translation: 目的：提供一种波长非依赖光源操作装置，通过使用波长识别信号，基于所识别的波长值来优化波长非依赖光源的操作。 构成：种子光信号生成单元（130）基于波长识别信号（121〜123）创建一个或多个种子光信号。 波长光学检测单元（170）从产生的种子光信号中检测波长识别信号。 提取单元（180）提取与检测到的波长识别信号匹配的波长值。 提取单元提取与提取的波长值相匹配的与波长无关的光源的操作条件。 操作单元（190）操作波长非依赖光源。
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Patent Agency Ranking
公开(公告)号：KR101118594B1
公开(公告)日：2012-02-27
申请号：KR1020090031311
申请日：2009-04-10
Abstract: 본 발명은, 룩업 테이블을 복수 개의 뱅크로 분리하고, 적어도 한 개의 특별 기능 유닛(SFU : Special Function Unit)으로부터 요청받은 다항식 계수(coefficient)의 주소들을 기반으로 해당 주소가 속하는 뱅크를 나타내는 초기 비트맵(initial bitmap)을 형성하는 뱅크 분할부; 상기 뱅크 분할부에서 분리된 각각의 뱅크의 초기 비트맵에서 현재 비트맵(current bitmap)을 추출하고, 상기 현재 비트맵에서 특정된 SFU에 대해 요청받은 다항식의 계수를 제공하는 멀티 패치부; 및 상기 초기 비트맵과 현재 비트맵을 기반으로, 다음 비트맵(next bitmap)을 형성하는 비트맵 업데이터를 포함하며, 여기서, 뱅크별 초기 비트맵은 해당 뱅크에서 요청에 따라 다항식 계수를 제공해야 하는 SFU들에 대한 정보를 포함하고, 뱅크별 현재 비트맵은 해당 뱅크의 초기 비트맵에서 동일한 주소의 다항식 계수를 요청한 SFU들에 대한 정보를 포함하며, 뱅크별 다음 비트맵은 해당 뱅크에서 요청에 따라 다항식 계수를 제공해야 하는 나머지 SFU들에 대한 정보를 포함하는 것을 특징으로 하는 룩업 테이블 공유 장치 및 이를 이용한 룩업 테이블 공유 방법을 제공할 수 있다.
룩업 테이블(look-up table), 특별 기능 유닛(special function unit)-
公开(公告)号：KR1020110071786A
公开(公告)日：2011-06-29
申请号：KR1020090128435
申请日：2009-12-21
Applicant: 한국전자통신연구원
IPC: G02B6/42
Abstract: PURPOSE: A plug type optical transmitting and receiving module is provided to improve the spatial utility of the module by changing the structure of small form-factor pluggable main body and the structure of a printed circuit board. CONSTITUTION: A main body(10) is composed of an upper body(12) and a lower body(14). A light transmitting element(20) and a light receiving element are installed in the main body. A printed circuit board controls each element by being in connection with the light transmitting element and the light receiving element. The printed circuit board is composed of a first printed circuit board(32), a second printed circuit board(34), and a third printed circuit board(36). A standard light connector(24) is combined with the front side of the main body.
Abstract translation: 目的：通过改变小尺寸可插拔主体的结构和印刷电路板的结构，提供一种插头式光学发射和接收模块，以改善模块的空间效用。 构成：主体（10）由上体（12）和下体（14）构成。 光传输元件（20）和光接收元件安装在主体中。 印刷电路板通过与透光元件和光接收元件连接来控制每个元件。 印刷电路板由第一印刷电路板（32），第二印刷电路板（34）和第三印刷电路板（36）组成。 标准的光连接器（24）与主体的前侧相结合。
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公开(公告)号：KR1020110018826A
公开(公告)日：2011-02-24
申请号：KR1020100070529
申请日：2010-07-21
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/29
CPC classification number: H04J14/0282 , H04J14/0239 , H04J14/028 , H04J14/0283 , H04J2014/0253
Abstract: PURPOSE: An open type optical subscriber network system is provided to enable a user to change services by connecting a plurality of service and user through an optical infra without wavelength selectivity. CONSTITUTION: An optical line terminal part transmits and receives the optical signal of the specific transmission channel among the entire transfer channel which the light infra accepts. The optical network end part transmits a modulated optical signal of the predetermined transmission channel in the optical line terminal part to the optical line terminal part. An optical line terminal part and the optical distribution/joint part are included in the optical line terminal part.
Abstract translation: 目的：提供一种开放式光用户网络系统，以便用户能够通过在没有波长选择性的情况下通过光学连接多个服务和用户来改变业务。 构成：光线路终端部分在光接收的整个传输信道之间发送和接收特定传输信道的光信号。 光网络端部将光线路终端部中的预定传输路径的调制光信号发送到光线路终端部。 光线路终端部分和光分配/接合部分包括在光线路终端部分中。
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公开(公告)号：KR1020100073801A
公开(公告)日：2010-07-01
申请号：KR1020080132568
申请日：2008-12-23
Applicant: 한국전자통신연구원
CPC classification number: Y02D10/13
Abstract: PURPOSE: A dynamic scratchpad memory management device, a method, and a processor system are provided to accomplish high performance and low power consumption of the processor system by removing overhead for SPM administration of software based on hardware. CONSTITUTION: A SPM(130) provides the fast data access to a processor(10). A dynamic scratchpad memory management unit(110) manages the SPM. A SPM page converter unit(120) converts the virtual address of the scratchpad virtual page within extension bits into the address of the scratchpad physical page. A dynamic memory access control unit(140) stores data of the main memory(20) in the SPM.
Abstract translation: 目的：提供动态暂存器存储器管理设备，方法和处理器系统，以通过消除基于硬件的软件的SPM管理的开销来实现处理器系统的高性能和低功耗。 构成：SPM（130）提供对处理器（10）的快速数据访问。 动态暂存器存储器管理单元（110）管理SPM。 SPM页面转换器单元（120）将扩展位中的暂存器虚拟页面的虚拟地址转换为暂存器物理页面的地址。 动态存储器访问控制单元（140）将主存储器（20）的数据存储在SPM中。
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110.发明公开
公开(公告)号：KR1020100068155A
公开(公告)日：2010-06-22
申请号：KR1020090026645
申请日：2009-03-27
Applicant: 한국전자통신연구원
IPC: H04B10/50 , H04B10/2581
CPC classification number: H04B10/503 , H04B10/548 , H04J14/02
Abstract: PURPOSE: An optical transmitting device at WDM-PON with improvement of reflection sensitivity and a method thereof are provided to improve stability and reliability of an optical link by making the optical link less sensitive to reflection. CONSTITUTION: A laser diode(10) produces an optical signal and uses the produced optical signal as seed light. A controller unit(20) extends line widen of an output spectrum of the laser diode by approving DC bias and RF signal to the laser diode on electricity of the laser diode. The controller unit comprises the input control part and the output control uniting the optical signal outputted by each wavelength, and uses the combined optical signal as the seed light.
Abstract translation: 目的：提供一种改善反射灵敏度的WDM-PON的光发射设备及其方法，以通过使光链路对反射不敏感来提高光链路的稳定性和可靠性。 构成：激光二极管（10）产生光信号并使用产生的光信号作为种子光。 控制器单元（20）通过在激光二极管的电上通过对激光二极管批准DC偏压和RF信号来延伸激光二极管的输出光谱的线宽。 控制器单元包括输入控制部分和输出控制，其结合由每个波长输出的光信号，并且使用组合的光信号作为种子光。
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