公开(公告)号：US07787771B2

公开(公告)日：2010-08-31

申请号：US11636131

申请日：2006-12-08

Applicant: Tae Yeon Kim ,  Jeong Ju Yoo ,  Kang Bok Lee ,  Hyeon Ho Yoon ,  Byoung Whi Kim

Inventor： Tae Yeon Kim ,  Jeong Ju Yoo ,  Kang Bok Lee ,  Hyeon Ho Yoon ,  Byoung Whi Kim

IPC: H04J14/00 ,  H04J3/16

CPC classification number: H04J14/02 ,  H04J14/0282

Abstract: Provided are extendable loop-back passive optical network (PON) and scheduling method and apparatus for the same. The loop-back type PON includes an OLT (optical line terminal) including a wavelength-tunable optical transmitter and a wavelength-locked optical receiver, and an RN (remote node) including an optical coupler/splitter, the optical coupler/splitter receiving optical signals from the wavelength-tunable optical transmitter and splitting the optical signals by wavelength so as to transmit the optical signals to corresponding ONTs (optical network terminals). Each of the ONTs transmits upstream data to the OLT using the same wavelength as the wavelength of the optical signal received from the OLT through the RN. Since the optical network makes use of the TDM and WDM communication schemes, the optical network can be maintained and upgraded at lower cost.

Abstract translation: 提供了可扩展环回无源光网络（PON）及其调度方法和装置。 环回型PON包括包括波长可调光发射机和波长锁定光接收机的OLT（光线路终端）和包括光耦合器/分离器的RN（远程节点），光耦合器/分离器接收光 来自波长可调光发射机的信号，并通过波长分割光信号，以将光信号传输到相应的ONT（光网络终端）。 每个ONT使用与从OLT通过RN接收的光信号的波长相同的波长向OLT发送上行数据。 由于光网络利用TDM和WDM通信方案，可以以更低的成本维护和升级光网络。

公开(公告)号：US07437073B2

公开(公告)日：2008-10-14

申请号：US10428955

申请日：2003-05-01

Applicant: Tae Yeon Kim ,  Hyeon Ho Yoon ,  Jeong Ju Yoo ,  Byoung Whi Kim ,  Hyeong Ho Lee

Inventor： Tae Yeon Kim ,  Hyeon Ho Yoon ,  Jeong Ju Yoo ,  Byoung Whi Kim ,  Hyeong Ho Lee

IPC: H04J14/00

CPC classification number: H04Q11/0067 ,  H04J14/02 ,  H04J14/0227 ,  H04J14/0245 ,  H04J14/0249 ,  H04J14/0282 ,  H04J14/0283 ,  H04J14/0286 ,  H04J14/0298 ,  H04Q11/0071

Abstract: Disclosed herein is a system for providing dynamic service using optical sub-carrier multiplexing type multi-channel access and method of controlling the same. The system includes a plurality of optical sub-carrier multiplexing modems, an optical gigabit-Ethernet switch and a plurality of wavelength division multiplexing couplers. The optical sub-carrier multiplexing modems transmit user traffic using multiple optical sub-carrier channel control. The optical gigabit-Ethernet switch is connected to an access network upstream and to the optical sub-carrier multiplexing modems downstream to manage a plurality of wavelengths and a plurality of optical sub-carrier channels according to the wavelengths. The wavelength division multiplexing couplers connect the plurality of optical sub-carrier multiplexing modems with the optical gigabit-Ethernet switch, perform aggregation and branching of a certain wavelength and transmit it.

Abstract translation: 本文公开了一种使用光子载波复用类型多信道访问提供动态服务的系统及其控制方法。 该系统包括多个光副载波复用调制解调器，光千兆以太网交换机和多个波分多路复用耦合器。 光子载波复用调制解调器使用多个光子载波信道控制来发送用户业务。 光千兆以太网交换机连接到上游的接入网和下行的光副载波复用调制解调器，以根据波长管理多个波长和多个光子载波信道。 波分复用耦合器将多个光副载波复用调制解调器与光千兆比特以太网交换机连接起来，执行一定波长的聚合和分支并进行发送。