公开(公告)号：US20150382237A1

公开(公告)日：2015-12-31

申请号：US14733095

申请日：2015-06-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Seung Hwan KIM ,  Seung Hyun CHO ,  Sang Soo LEE

IPC: H04W28/06 ,  H04L27/26 ,  H04J11/00

CPC classification number: H04L27/2636 ,  H04L27/2647

Abstract: A network apparatus as well as a data compression and data recovery method thereof using compressed sensing (CS). According to an exemplary embodiment, the data compression and recovery method may include compressing raw digital signals by using CS; modulating and transmitting the compressed raw digital signals; receiving and demodulating the modulated raw digital signals; and recovering the raw digital signals by decompressing, by using CS, the demodulated raw digital signals.

Abstract translation: 网络装置以及使用压缩感测（CS）的数据压缩和数据恢复方法。 根据示例性实施例，数据压缩和恢复方法可以包括通过使用CS压缩原始数字信号; 调制和传输压缩的原始数字信号; 接收和解调调制的原始数字信号; 并通过使用CS解调原始数字信号来解压缩原始数字信号。

公开(公告)号：US20150349891A1

公开(公告)日：2015-12-03

申请号：US14720210

申请日：2015-05-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Eui Suk JUNG ,  Eun Gu LEE ,  Sang Soo LEE

IPC: H04B10/2575

CPC classification number: H04B10/25754

Abstract: The present disclosure provides a digital unit including: one or more remote apparatus communicators configured to correspond to each of one or more remote apparatuses to process transmitted and received data; a multi-wavelength controller configured to convert data transmitted from each of the one or more remote apparatuses into a wavelength allocated thereto and to transmit the converted data to remote apparatuses via an optical fiber; and a base station controller configured to allocate transmission and reception wavelength to each of the one or more remote apparatus communicators to control the multi-wavelength controller and to transmit wavelength information associated with the wavelength allocation to each of the one or more remote apparatuses.

Abstract translation: 本公开提供了一种数字单元，包括：一个或多个远程设备通信器，被配置为对应于一个或多个远程设备中的每一个以处理发送和接收的数据; 多波长控制器，被配置为将从所述一个或多个远程设备中的每一个传输的数据转换成分配给其的波长，并且经由光纤将转换的数据发送到远程设备; 以及基站控制器，被配置为向所述一个或多个远程设备通信器中的每一个分配发送和接收波长，以控制所述多波长控制器并将与所述波长分配相关联的波长信息发送到所述一个或多个远程设备中的每一个。

公开(公告)号：US20150229402A1

公开(公告)日：2015-08-13

申请号：US14619539

申请日：2015-02-11

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jyung Chan LEE ,  Eun Gu LEE ,  Sil Gu MUN ,  Sang Soo LEE

IPC: H04B10/50 ,  H04B10/2575

CPC classification number: G02B6/4279

Abstract: An interface for transmitting a high-speed signal and an optical module including the same. The interface may include a main substrate and a sub-substrate. The main substrate may have at least one high-speed signal line formed on the upper surface of the main substrate. The sub-substrate may have a first conductive line formed on the lower surface thereof so as to adjust high-speed signal transmission characteristics of the high-speed signal line, wherein the first conductive line may be coupled to the upper surface of the main substrate and partially overlap with the high-speed signal line.

Abstract translation: 用于发送高速信号的接口和包括该高速信号的光模块。 界面可以包括主衬底和副衬底。 主基板可以具有形成在主基板的上表面上的至少一个高速信号线。 子基板可以具有形成在其下表面上的第一导线，以便调整高速信号线的高速信号传输特性，其中第一导线可以耦合到主基板的上表面 并与高速信号线部分重叠。

公开(公告)号：US20150055957A1

公开(公告)日：2015-02-26

申请号：US14469099

申请日：2014-08-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Han Hyub LEE ,  Kwang Ok KIM ,  Sang Soo LEE

IPC: H04J14/02 ,  H04J14/08

CPC classification number: H04J14/0227 ,  H04J14/0239 ,  H04J14/0245 ,  H04J14/0246 ,  H04J14/0247 ,  H04J14/08

Abstract: A method of determining a physical layer wavelength of a tunable optical network unit (ONU) in a time wavelength division multiplexing-passive optical network (TWDM-PON) is provided. First, a receiving wavelength of a tunable receiver is tuned to a downstream wavelength of one of a plurality of operable channels in a TWDM-PON system. Then, it is checked whether the tunable receiver maintains a state of loss of signal (LOS) for a predetermined period of time or the state of LOS is cleared. In response to a determination that the state of LOS is cleared, the ONU performs subsequent link establishment procedures in the channel, and in response to a determination that the state of LOS is maintained, the receiving wavelength of the tunable receiver is changed to a downstream wavelength of another channel.

Abstract translation: 提供了一种在时分多路复用无源光网络（TWDM-PON）中确定可调谐光网络单元（ONU）的物理层波长的方法。 首先，可调谐接收机的接收波长被调谐到TWDM-PON系统中的多个可操作信道之一的下游波长。 然后，检查可调谐接收器是否在预定时间段内保持信号丢失（LOS）状态或者清除LOS的状态。 响应于确定LOS的状态被清除，ONU在该信道中执行后续链路建立过程，并且响应于确定LOS的状态的确定，可调接收机的接收波长被改变为下游 另一个通道的波长。

公开(公告)号：US20140003818A1

公开(公告)日：2014-01-02

申请号：US13928570

申请日：2013-06-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jie Hyun LEE ,  Seung Hyun CHO ,  Seung Il MYONG ,  Sang Soo LEE

IPC: H04B10/50

CPC classification number: H04B10/503 ,  H01S5/02284 ,  H01S5/02415 ,  H01S5/141

Abstract: Provided is an external cavity laser using a multilayered thin film filter and an optical transmitter having the same. The external cavity laser may include a semiconductor laser diode to output an optical signal, a lens to cause the optical signal output from the semiconductor laser diode to converge, a multilayered thin film filter to receive the optical signal passed through the lens and to pass the optical signal in a bandpass wavelength range, and a partial reflector to transmit the optical signal transmitted through the multilayered thin film filter to an optical fiber.

Abstract translation: 提供了使用多层薄膜滤光器的外腔激光器和具有该外腔激光器的光发射器。 外腔激光器可以包括用于输出光信号的半导体激光二极管，用于使来自半导体激光二极管的光信号输出会聚的透镜，多层薄膜滤光器以接收通过透镜的光信号并使 光信号在带通波长范围内，以及部分反射器将透过多层薄膜滤光片的光信号传输到光纤。

公开(公告)号：US20130170837A1

公开(公告)日：2013-07-04

申请号：US13729638

申请日：2012-12-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kwang Ok KIM ,  Seung-Hyun CHO ,  Jie Hyun LEE ,  Seung Il MYONG ,  Sang Soo LEE ,  Jong Hyun LEE

IPC: H04J14/08

CPC classification number: H04J14/08 ,  H04Q11/0005 ,  H04Q2011/0064

Abstract: A converged passive optical network (CPON) and a data transmission method are disclosed. The CPON is a combination of a time division multiple access-passive optical network (TDMA-PON) and an orthogonal frequency division multiple access-passive optical network (OFDMA-PON) and is able to dynamically controlling a bandwidth for upstream signal transmission through allocation of multiple subcarriers to each single optical network unit (ONU).

Abstract translation: 公开了一种融合无源光网络（CPON）和数据传输方法。 CPON是时分多址无源光网络（TDMA-PON）和正交频分多址无源光网络（OFDMA-PON）的组合，能够通过分配动态地控制上行信号传输的带宽 的多个子载波到每个单个光网络单元（ONU）。

公开(公告)号：US20130170830A1

公开(公告)日：2013-07-04

申请号：US13729521

申请日：2012-12-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Hyun CHO ,  Jie Hyun LEE ,  Kwang Ok KIM ,  Eui Suk JUNG ,  Seung Il MYONG ,  Sang Soo LEE ,  Jong Hyun LEE

IPC: H04B10/27

CPC classification number: H04B10/27 ,  H04B10/272 ,  H04B10/564 ,  H04B17/103 ,  H04B17/15

Abstract: A modulation method of an optical modem and a signal transmission apparatus performing the method are disclosed. The modulation method of the optical modem includes an optical interface providing a signal to a light source, a photo detector receiving reflected light by an optical link when output light from the light source based on the provided signal is reflected by the optical link, the photo detector measuring and determining characteristics of the optical link using the reflected light, and the optical modem determining a power level and a modulation method for each subcarrier based on the characteristics of the optical link.

Abstract translation: 公开了一种光调制解调器的调制方法和执行该方法的信号传输装置。 光调制解调器的调制方法包括向光源提供信号的光接口，当基于提供的信号的来自光源的输出光被光链路反射时，光接收器接收由光链路反射的光的光检测器，照片 检测器使用反射光测量和确定光链路的特性，并且光调制解调器基于光链路的特性确定每个子载波的功率电平和调制方法。

公开(公告)号：US20130170375A1

公开(公告)日：2013-07-04

申请号：US13729582

申请日：2012-12-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kwang Ok KIM ,  Seung Il MYONG ,  Sang Soo LEE ,  Jong Hyun LEE

IPC: H04W88/06

CPC classification number: H04W88/06 ,  H04L5/0091 ,  H04L27/2602

Abstract: A wired/wireless converged media access control (MAC) adaptor and a method for transmitting a frame using the same. The wired/wireless converged MAC adaptor may include a service network interface (SNI) to transmit a MAC frame corresponding to a wired or wireless service, or common public radio interface (CPRI) data, a frame conversion unit to convert, into an orthogonal frequency division multiplexing (OFDM) frame, a wired/wireless converged MAC frame having a common frame structure of the MAC frame corresponding to the wired or wireless service or the CPRI data, and an OFDM interface configured to transmit the OFDM frame to an optical OFDM modem by dynamically allocating sub-carriers based on data transmission characteristics.

Abstract translation: 有线/无线融合媒体访问控制（MAC）适配器以及使用该适配器发送帧的方法。 有线/无线融合MAC适配器可以包括用于发送对应于有线或无线服务的MAC帧的服务网络接口（SNI）或公共无线电接口（CPRI）数据，将转换成正交频率的帧转换单元 分割复用（OFDM）帧，具有与有线或无线服务或CPRI数据相对应的MAC帧的公共帧结构的有线/无线融合MAC帧以及被配置为将OFDM帧发送到光OFDM调制解调器的OFDM接口 通过基于数据传输特性动态分配子载波。

公开(公告)号：US20160282556A1

公开(公告)日：2016-09-29

申请号：US15081289

申请日：2016-03-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Heuk PARK ,  Sang Soo LEE

IPC: G02B6/12

CPC classification number: G02B6/12033 ,  G02B6/12007 ,  G02B6/12009 ,  G02B6/12011

Abstract: An arrayed waveguide grating device and a method for manufacturing the arrayed waveguide grating device. The arrayed waveguide grating device includes input channel waveguides formed on a substrate; output channel waveguides formed on the substrate that correspond to the input channel waveguides; and arrayed waveguides with different lengths interposed between the input channel waveguides and the output channel waveguides on the substrate while free propagation regions being formed at both ends of the arrayed waveguides, wherein the arrayed waveguides are designed so that a free spectral range (FSR) of a higher-order mode is twice or greater than a bandwidth of a region of interest (ROI).

Abstract translation: 阵列波导光栅装置及其阵列波导光栅装置的制造方法。 阵列波导光栅器件包括形成在衬底上的输入通道波导; 形成在与输入通道波导对应的基板上的输出通道波导; 以及布置在衬底上的输入通道波导和输出通道波导之间的不同长度的阵列波导，同时在阵列波导的两端形成自由传播区域，其中阵列波导被设计成使得阵列波导的自由光谱范围（FSR） 高阶模式是感兴趣区域（ROI）的带宽的两倍或更大。

公开(公告)号：US20160142028A1

公开(公告)日：2016-05-19

申请号：US14875893

申请日：2015-10-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Young Ho KIM ,  Sang Soo LEE

IPC: H03F3/45 ,  H03F1/02

CPC classification number: H03F3/45183 ,  G01R19/0084 ,  G01R19/04 ,  H03F3/082 ,  H03F2200/435

Abstract: A signal level detector comprising and a Burst-Mode Trans Impedance Amplifier (BM-TIA) using the same. The signal level detector includes a level detector configured to detect peak voltage of an input voltage signal, a reference voltage generator configured to generate second reference voltage by receiving first reference voltage, a comparator configured to compare the peak voltage and the second reference voltage and output a discrimination value according to a comparison result, and a latch configured to store the differential output from the comparator, wherein the level detector and the reference voltage generator have differential amplifier in the same structure.

Abstract translation: 信号电平检测器包括使用其的突发模式反阻抗放大器（BM-TIA）。 信号电平检测器包括：电平检测器，被配置为检测输入电压信号的峰值电压;参考电压发生器，被配置为通过接收第一参考电压产生第二参考电压;比较器，被配置为比较峰值电压和第二参考电压，并输出 根据比较结果的鉴别值，以及配置为存储来自比较器的差分输出的锁存器，其中电平检测器和参考电压发生器具有相同结构的差分放大器。