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公开(公告)号：KR1020100072677A
公开(公告)日：2010-07-01
申请号：KR1020080131154
申请日：2008-12-22
Applicant: 한국전자통신연구원
CPC classification number: H04L27/0014 , H04L2027/0026 , H04L2027/0046
Abstract: PURPOSE: A parallel automatic frequency offset estimation apparatus and a method thereof are provided to calculate a frequency and a phase difference regarding a distorted signal in parallel in a certain interval of a preamble. CONSTITUTION: A reception unit(200) receives a data frame, and a frequency offset estimating unit(300) calculates frequency phase deviations corresponding to each interval at different bit interval in parallel in a certain section of a received data frame and sums up the frequency phase deviations. The frequency offset estimator adds the sum result to a frequency phase deviation and outputs the added result.
Abstract translation: 目的：提供并行自动频率偏移估计装置及其方法，以在前同步码的一定间隔中并行计算失真信号的频率和相位差。 构成：接收单元（200）接收数据帧，频率偏移估计单元（300）在接收到的数据帧的某一部分中以不同的比特间隔并行计算与每个间隔相对应的频率相位偏差，并且将频率 相位偏差。 频率偏移估计器将求和结果加到频率相位偏差上，并输出相加的结果。
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公开(公告)号：KR1020100066872A
公开(公告)日：2010-06-18
申请号：KR1020080125366
申请日：2008-12-10
Applicant: 한국전자통신연구원
CPC classification number: H04Q9/00 , G06K19/0717 , H04Q2209/47 , H04Q2209/823
Abstract: PURPOSE: A wireless recognition sensor tag and a method for storing sensor data are provided to store sensor data in memory space of sensor tag during many hours and minimizes the capacity of memory according to the need, thereby reducing power consumption. CONSTITUTION: A sensor unit(120) senses at least one of information. An RF communication unit(110) processes a signal transceiving by RFID reader and wireless. A storage unit(130) stores command necessary for a tag operation, data, and sensed information the sensor unit. A control unit(140) compares a new sensor data of the sensor and sensor data of just before. If the compared result satisfies the standard, the control unit records the new sensor data to the storage unit.
Abstract translation: 目的：提供无线识别传感器标签和存储传感器数据的方法，以便在多个小时内将传感器数据存储在传感器标签的存储器空间中，并根据需要最小化存储器的容量，从而降低功耗。 构成：传感器单元（120）感测至少一个信息。 RF通信单元（110）通过RFID读取器和无线处理信号收发。 存储单元（130）存储标签操作所需的命令，数据和感测信息。 控制单元（140）比较传感器的新传感器数据和刚才的传感器数据。 如果比较结果满足标准，则控制单元将新的传感器数据记录到存储单元。
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公开(公告)号：KR1020090060584A
公开(公告)日：2009-06-15
申请号：KR1020070127460
申请日：2007-12-10
Applicant: 한국전자통신연구원
IPC: H03M1/66
CPC classification number: H03M1/664 , H03M2201/3131 , H03M2201/413 , H03M2201/932
Abstract: A digital analog converter and an operating method thereof are provided to control an electrical parameter without maintaining linearity in a system requiring a point to point control based on a lookup table by outputting an increasing analog value with the point to point nonlinear characteristic by corresponding to a digital input value. A digital analog converter converts a digital input value comprised of N bits into the 2N analog values and outputs the converted value. A nonlinear reference signal generator(20) includes a decoder and a signal generator(24). A signal generator includes a power unit, a device part, and a voltage divider. A power supply unit supplies the reference voltage. The device part includes 2n devices with different impedance connected in series. The voltage divider outputs the distribution voltage in proportion to the sum of impedance about the number of devices corresponding to the digital input value among the 2n devices as the analog value.
Abstract translation: 数字模拟转换器及其操作方法被提供来控制电参数，而不需要通过基于查找表来控制需要点对点控制的系统，通过对应于点对点非线性特性输出增加的模拟值 数字输入值。 数字模拟转换器将由N位组成的数字输入值转换为2N个模拟值，并输出转换后的值。 非线性参考信号发生器（20）包括解码器和信号发生器（24）。 信号发生器包括功率单元，器件部分和分压器。 电源单元提供参考电压。 器件部分包括串联连接不同阻抗的2n个器件。 分压器输出与在2n个器件中对应于数字输入值的器件数量的阻抗之和成比例的分配电压作为模拟值。
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公开(公告)号：KR100901858B1
公开(公告)日：2009-06-09
申请号：KR1020070133780
申请日：2007-12-18
Applicant: 한국전자통신연구원
CPC classification number: G06F15/7871
Abstract: An apparatus for reconfiguring establishment and collecting a signal is provided to reduce the number of devices by connecting a digital alarm signal collecting block and an environment reestablishing unit through one serial bus. An integrated control unit(113) is connected to first to n alarm signal collecting units, and first to n environment reestablishing units through a serial bus(110) transmitting and receiving the data. The first to n alarm signal collecting units(100a-100n) and the first to n environment reestablishing units(105a-105n) have respective addresses. The first to n alarm signal collecting units and the first to n environment reestablishing units are connected to the serial bus. The first to n alarm signal collecting units and the first to n environment reestablishing units share the bus clock and a command signal. The second to n alarm signal collecting units and the second to n environment reestablishing units connect the serial bus data input signal and the serial bus data output subordinately.
Abstract translation: 提供一种用于重新配置建立和收集信号的装置，以通过一个串行总线连接数字报警信号收集块和环境重建单元来减少设备的数量。 集成控制单元（113）连接到第一至第n报警信号采集单元，并且通过串行总线（110）首先传送到n个环境重新建立单元，发送和接收数据。 第一至第n报警信号收集单元（100a-100n）和第一至第n个环境重建单元（105a-105n）分别具有地址。 第一至第n个报警信号采集单元和第一至第n个环境重建单元连接到串行总线。 第一个到n个报警信号采集单元和第一个到n个环境重建单元共享总线时钟和一个命令信号。 第二对n个报警信号采集单元和第二个到n个环境重建单元连接串行总线数据输入信号和串行总线数据输出。
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公开(公告)号：KR1020080052332A
公开(公告)日：2008-06-11
申请号：KR1020070098885
申请日：2007-10-01
Applicant: 한국전자통신연구원
CPC classification number: H04B10/40 , H04B10/503 , H04B10/572
Abstract: A wavelength initializing method using an external lookup table, and an optical transceiver of a wavelength variable type using the same are provided to perform wavelength initialization of a self-tuning way easily by mounting the lookup table to a controller of an external host and sharing a control function including a lookup function with the host. An optical transceiver(420) converts electrical signals into optical signals of wavelength variable type. A memory unit(430) stores a lookup table including information controlling the wavelength of the optical signals, and transmits the lookup table to an external host after connecting to the external host. The optical transceiver comprises a laser driver(412) which generates bias current, a laser diode(422) which converts electric signals into optical signals, and a wavelength control unit(423) which controls the wavelength of the optical signals after receiving the wavelength control information of the lookup table.
Abstract translation: 提供使用外部查找表的波长初始化方法和使用其的波长可变类型的光收发器，以通过将查找表安装到外部主机的控制器并共享一个自适应方式来轻松地执行自调谐方式的波长初始化 控制功能包括与主机的查找功能。 光收发器（420）将电信号转换为波长可变类型的光信号。 存储单元（430）存储包括控制光信号的波长的信息的查找表，并且在连接到外部主机之后将查找表发送到外部主机。 光收发器包括产生偏置电流的激光驱动器（412），将电信号转换为光信号的激光二极管（422），以及在接收到波长控制之后控制光信号的波长的波长控制单元（423） 查询表的信息。
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Patent Agency Ranking
公开(公告)号：KR1020070061290A
公开(公告)日：2007-06-13
申请号：KR1020060085820
申请日：2006-09-06
Applicant: 한국전자통신연구원
CPC classification number: H04J14/0227 , H04J14/0286
Abstract: A PCS(Physical Coding Sublayer) apparatus and the Ethernet layer architecture of a T-PON(Tunable-Wavelength Passive Optical Network System) having a wavelength variable type optical source are provided to support a wavelength initialization and alignment of an ONT(Optical Network Terminal) based on a PLC-ECL(Planar Lightwave Circuit-External Cavity Laser) by independently determining an ONT optical signal. A PCS apparatus of a T-PON having a wavelength variable type optical source includes a wavelength monitoring unit(615), and an automatic recognition unit(614), a transmission unit(611), and a receiving unit(612). The wavelength monitoring unit(615) extracts wavelength information from a digital frame signal transmitted from an ONT, and monitors whether the wavelength information is ONT optical source assignment wavelength information or not. If the wavelength information is not matched with the optical source assignment information of the ONT, the automatic recognition unit(614) adds wavelength control information to the digital frame signal and transmits the added information to the ONT. If the wavelength information is matched with the optical source assignment information of the ONT, the transmission unit(611) encodes and transmits the data transmitted from the ONT to a MAC layer. The receiving unit(612) decodes and receives data of the MAC layer.
Abstract translation: 提供具有波长可变型光源的PCS（物理编码子层）装置和具有波长可变型光源的T-PON（可调波长无源光网络系统）的以太网层架构，以支持ONT（光网络终端）的波长初始化和对准 ）通过独立地确定ONT光信号而基于PLC-ECL（平面光波电路 - 外腔激光器）。 具有波长可变型光源的T-PON的PCS装置包括波长监视单元（615）和自动识别单元（614），发送单元（611）和接收单元（612）。 波长监视单元（615）从ONT发送的数字帧信号中提取波长信息，并监视波长信息是否为ONT光源分配波长信息。 如果波长信息与ONT的光源分配信息不匹配，则自动识别单元（614）将波长控制信息添加到数字帧信号，并将添加的信息发送到ONT。 如果波长信息与ONT的光源分配信息相匹配，则发送单元611将从ONT发送的数据编码并发送到MAC层。 接收单元（612）解码并接收MAC层的数据。
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公开(公告)号：KR1020050040959A
公开(公告)日：2005-05-04
申请号：KR1020030075802
申请日：2003-10-29
Applicant: 한국전자통신연구원
CPC classification number: H04Q11/0067 , H04Q11/0066 , H04Q11/0071
Abstract: 본 발명은 이더넷 기반 디지털 방송 서비스를 제공하는 광네트워크 유니트 및 그 서비스 방법에 관한 것으로 특히, EPON망을 통해 디지털 방송 데이터를 제공함에 있어서 보다 간단한 방식 및 저렴한 비용으로 디지털 방송의 활성화를 꾀할 수 있는 이더넷 기반 디지털 방송 서비스를 제공하는 광네트워크 유니트 및 그 서비스 방법에 관한 것이다.
본 발명이 개시하는 EPON망을 통해 이더넷 기반 디지털 방송 서비스를 제공하는 광네트워크 유니트는 OLT로부터 수신되는 이더넷 프레임을 디지털 방송 프레임과 기타 프레임으로 분류하는 수신 프레임 분류부; 상기 방송 프레임을 채널별로 분류하는 방송 프레임 분류부; 및 가입자가 요구하는 방송의 채널을 판별하여 상기 가입자에게 상기 채널에 해당하는 방송 프레임을 전송 처리하는 방송 프레임 처리부를 포함하여 본 발명의 목적 및 기술적 과제를 달성한다.-
公开(公告)号：KR1020040043281A
公开(公告)日：2004-05-24
申请号：KR1020020071500
申请日：2002-11-18
Applicant: 한국전자통신연구원
IPC: H04L12/42
CPC classification number: H04L45/12 , H04L12/4637 , H04L45/20 , H04L45/22
Abstract: PURPOSE: A ring selecting method is provided to efficiently use a ring bandwidth by preventing concentration of packets onto a specific ring and distributing frequency of use of ring. CONSTITUTION: A ring selecting method comprises a step(S501) of permitting a transmitting node to broadcast an address resolution protocol(ARP) request message to all nodes; a step(S502) of permitting the receiving node which has received the ARP request message to check the address of media access control(MAC); a step(S503) of permitting the receiving node to compare topology maps of the receiving node; a step(S504) of permitting the receiving node to select the ring having the ring with the least absorption and transmit the ARP message to the transmitting node; a step(S505) of permitting the transmitting node to update a routing table, and calculate a usage rate; a step(S506) of permitting the transmitting node to perform a ring selecting algorithm; a step(S507) of creating a packet when a ring is selected; a step(S508) of setting the number of the selected ring; and a step(S509) of transmitting the packet to the receiving node.
Abstract translation: 目的：提供一种环选择方法，通过防止分组到特定的环集中并分配环的使用频率，有效地使用环带宽。 环境选择方法包括：允许发送节点向所有节点广播地址解析协议（ARP）请求消息的步骤（S501）; 允许接收到所述ARP请求消息的接收节点检查媒体接入控制（MAC）的地址的步骤（S502）; 步骤（S503），允许所述接收节点比较所述接收节点的拓扑图; 允许接收节点选择具有最小吸收的环的环的步骤（S504），并向发送节点发送ARP消息; 允许发送节点更新路由表的步骤（S505），并计算使用率; 允许发送节点执行振铃选择算法的步骤（S506）; 当选择环时创建分组的步骤（S507）; 设置所选择的环的号码的步骤（S508） 以及将分组发送到接收节点的步骤（S509）。
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公开(公告)号：KR1020030056300A
公开(公告)日：2003-07-04
申请号：KR1020010086499
申请日：2001-12-28
Applicant: 한국전자통신연구원
IPC: H04L12/28
CPC classification number: H04L12/5601 , H04L12/4608 , H04L2012/562 , H04L2012/5652 , H04L2012/5667
Abstract: PURPOSE: An ATM(Asynchronous Transfer Mode) interface device for a high-speed router system is provided to perform an interface with an ATM network which supports a transmission speed with 622Mbps, in an IP(Internet Protocol)-based high-speed router. CONSTITUTION: A physical layer interface unit(201) connects to an ATM network by an optical interface. Transmission/reception cell converting units(209,207) convert an ATM cell into an IP packet type, and convert data inputted as an IP packet type into an ATM cell type. Transmission/reception memories(208,202) store data in the cell conversion of the transmission/reception cell converting units(209,207). A network processor(204) analyzes and processes packet information, forwards processed packet information to an output port, and performs an interface with a switch. A memory(205) stores data when performing the packet processing and forwarding functions. Transmission/reception data bus converting units(213,203) convert a protocol between the network processor(204) and the transmission/reception cell converting units(209,207). A control bus converting unit(212) converts a serial bus into a parallel bus, between the network processor(204) and the physical layer interface unit(201). A host processor(206) manages resources of the entire line interface module of a high-speed router system.
Abstract translation: 目的：提供一种用于高速路由器系统的ATM（异步传输模式）接口设备，用于在基于IP（因特网协议）的高速路由器中与支持622Mbps传输速度的ATM网络进行接口。 构成：物理层接口单元（201）通过光接口连接到ATM网络。 发送/接收小区转换单元（209,207）将ATM信元转换为IP包类型，将作为IP包类型输入的数据转换为ATM信元类型。 发送/接收存储器（208,202）将数据存储在发送/接收小区转换单元（209,207）的小区转换中。 网络处理器（204）分析和处理分组信息，将处理的分组信息转发到输出端口，并且执行与交换机的接口。 存储器（205）在执行分组处理和转发功能时存储数据。 发送/接收数据总线转换单元（213,203）在网络处理器（204）和发送/接收小区转换单元（209,207）之间转换协议。 控制总线转换单元（212）将网络处理器（204）和物理层接口单元（201）之间的串行总线转换成并行总线。 主处理器（206）管理高速路由器系统的整个线路接口模块的资源。
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公开(公告)号：KR1020030055374A
公开(公告)日：2003-07-04
申请号：KR1020010084081
申请日：2001-12-24
Applicant: 한국전자통신연구원
IPC: H04L7/00
Abstract: PURPOSE: A system for clock synchronization between a dual switch board and a line connection board is provided, which achieves clock synchronization between the switch board and the line connection board, and supplies a stable clock to each line connection board. CONSTITUTION: The system comprises two dual switch boards(210,220) performing switching according to a switching signal and a plurality of line connection boards(230,240) connected to the switch boards by a signal line to transmit a synchronous clock. Each switch board includes a switching part(211,221) performing switching according to the switching signal and generating a control signal indicating dual state by exchanging the dual control signal between each switch board, and a synchronous clock circuit part(212,222) generating a self clock using a clock generated by an external synchronous reference clock or a clock generated by self oscillation and then supplying it to the switching part. The synchronous clock circuit part generates a synchronous clock using the clock generated by self oscillation or the external synchronous reference clock only when the present switching board is in an active state, and supplies the generated synchronous clock to the plurality of line connection boards through the signal line.
Abstract translation: 目的：提供双开关板和线路连接板之间的时钟同步系统，实现开关板和线路连接板之间的时钟同步，并为每条线路连接板提供稳定的时钟。 构成：该系统包括根据切换信号执行切换的两个双交换板（210,220）和通过信号线连接到交换板的多个线路连接板（230,240），以传输同步时钟。 每个开关板包括根据切换信号执行切换的切换部分（211,221），并且通过在每个开关板之间交换双重控制信号并产生用于产生自我时钟的同步时钟电路部分（212,222）来产生指示双重状态的控制信号，所述同步时钟电路部分使用 由外部同步参考时钟产生的时钟或由自振荡产生的时钟，然后将其提供给切换部分。 同步时钟电路部分仅在当前切换板处于活动状态时使用由自振荡产生的时钟或外部同步参考时钟产生同步时钟，并通过信号将产生的同步时钟提供给多个线路连接板 线。
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