公开(公告)号：US20080165348A1

公开(公告)日：2008-07-10

申请号：US11967311

申请日：2007-12-31

Applicant: Hoon Kim ,  Jae-Hun Cho ,  Seong-Taek Hwang

Inventor： Hoon Kim ,  Jae-Hun Cho ,  Seong-Taek Hwang

IPC: G01N21/00

CPC classification number: G01M11/333

Abstract: An apparatus and method for monitoring an optical fiber that links a first node and a second node. An apparatus includes: a first transmitting part for outputting a first check light, which is modulated by the first pattern signal, to the optical fiber link. A first receiving part demodulates the second pattern signal from the second check light, which is input by the optical fiber link. A first processor generates the first pattern signal and outputs the first pattern signal to the first transmitting part, and receives the second pattern signal from the first receiving part.

Abstract translation: 一种用于监视链接第一节点和第二节点的光纤的装置和方法。 一种装置包括：第一发送部分，用于将由第一模式信号调制的第一检查光输出到光纤链路。 第一接收部分从由光纤链路输入的第二检查光解调第二图案信号。 第一处理器生成第一图案信号并将第一图案信号输出到第一发送部，并从第一接收部接收第二图案信号。

公开(公告)号：US20070258550A1

公开(公告)日：2007-11-08

申请号：US11652226

申请日：2007-01-11

Applicant: Si-Hai Wang ,  Jae-Hun Cho ,  Seong-Taek Hwang ,  Hoon Kim

Inventor： Si-Hai Wang ,  Jae-Hun Cho ,  Seong-Taek Hwang ,  Hoon Kim

IPC: H04L7/00

CPC classification number: H04J3/0664

Abstract: A method for time synchronization in a distributed control system includes the steps of: when a sync is received from a master-side, confirming both a reception time point of the corresponding sync and a compensation time point of a previous frequency, and determining if a result obtained by confirming the two time points corresponds to a preset Frequency Compensation Interval (FCI); performing only a time offset compensation operation when the result obtained by confirming the two time points does not correspond to the preset FCI; and performing both time offset and frequency compensation operations when the result obtained by confirming the two time points corresponds to the preset FCI.

Abstract translation: 在分布式控制系统中的时间同步的方法包括以下步骤：当从主方接收到同步时，确认相应同步的接收时间点和前一频率的补偿时间点，并确定是否 通过确认两个时间点获得的结果对应于预设的频率补偿间隔（FCI）; 当通过确认两个时间点获得的结果不对应于预设的FCI时，仅执行时间偏移补偿操作; 并且当通过确认两个时间点获得的结果对应于预设的FCI时，执行时间偏移和频率补偿操作两者。

公开(公告)号：US20070008993A1

公开(公告)日：2007-01-11

申请号：US11481591

申请日：2006-07-06

Applicant: Do-Hun Cha ,  Jae-Hun Cho ,  Jun-Ho Koh ,  Sang-Ho Kim

Inventor： Do-Hun Cha ,  Jae-Hun Cho ,  Jun-Ho Koh ,  Sang-Ho Kim

IPC: H04J3/06

CPC classification number: H04J3/0682 ,  H04J3/0664 ,  H04J3/0667 ,  H04L12/403

Abstract: Disclosed is a time synchronization method for selecting a predetermined timing master and according Times of Day of a plurality of nodes with a Time of Day of the predetermined timing master in a Residential Ethernet system, which includes the nodes, the method comprising the steps of receiving, by a predetermined node among the nodes, a time value of the predetermined timing master, and setting a time value of the predetermined node as the received time value, and changing, by the predetermined node, the set time value by taking into consideration a data transmission delay time value between the predetermined node and the predetermined timing master.

Abstract translation: 公开了一种用于在包括节点的住宅以太网系统中选择具有预定定时主机的多个节点的多个节点的预定定时主机和时间日的时间同步方法，该方法包括以下步骤：接收 通过节点之间的预定节点，预定定时主机的时间值，并且将预定节点的时间值设置为接收时间值，并且通过考虑到预定节点将预定节点改变为设定时间值 预定节点与预定定时主机之间的数据传输延迟时间值。

公开(公告)号：US20060203826A1

公开(公告)日：2006-09-14

申请号：US11372951

申请日：2006-03-10

Applicant: Jae-Hun Cho ,  Jong-Ho Yoon ,  Sang-Ho Kim ,  Sihai Wang ,  Yun-Je Oh ,  Jun-Ho Koh

Inventor： Jae-Hun Cho ,  Jong-Ho Yoon ,  Sang-Ho Kim ,  Sihai Wang ,  Yun-Je Oh ,  Jun-Ho Koh

IPC: H04L12/28 ,  H04L12/56

CPC classification number: H04L12/4645 ,  H04L47/10 ,  H04L47/13 ,  H04L47/2408 ,  H04L47/2416 ,  H04L47/2458 ,  H04L47/31

Abstract: Disclosed is a method, apparatus and computer product for ensuring QoS (Quality of Service) of isochronous data in a Residential Ethernet system including a legacy Ethernet device and a first Residential Ethernet switch, in which the first Residential Ethernet switch transmits data packets to the legacy Ethernet device, the method comprising the steps of inserting, by the first Residential Ethernet switch, virtual local area network (VLAN) tags into the data packets in order to allocate priorities to the data packets, and establishing priorities of the VLAN tags such that a highest priority is allocated to isochronous packets from among the data packets.

Abstract translation: 公开了一种用于确保包括遗留以太网设备和第一住宅以太网交换机的住宅以太网系统中的同步数据的QoS（服务质量）的方法，装置和计算机产品，其中第一住宅以太网交换机向其传输数据分组 以太网设备，所述方法包括以下步骤：将所述第一家庭以太网交换机插入所述数据分组中以便为所述数据分组分配优先级，以及建立所述VLAN标签的优先级，使得 最高优先级被分配给数据分组中的同步分组。

公开(公告)号：US20060198391A1

公开(公告)日：2006-09-07

申请号：US11367242

申请日：2006-03-03

Applicant: Sang-Ho Kim ,  Jae-Hun Cho ,  Kwan-Soo Lee ,  Yun-Jo Oh ,  Jun-Ho Koh

Inventor： Sang-Ho Kim ,  Jae-Hun Cho ,  Kwan-Soo Lee ,  Yun-Jo Oh ,  Jun-Ho Koh

IPC: H04J3/16

CPC classification number: H04L49/351

Abstract: Disclosed is a method for forming a synchronous frame to be transmitted in a Residential Ethernet System, which is capable of discretely transmitting synchronous data and asynchronous data, wherein the synchronous frame includes synchronous packets which are formed according to destinations of synchronous data. The method includes the steps of: receiving the synchronous data having different destinations, and classifying the received synchronous data according to the destinations of the synchronous data; adding a synchronous header to each of the synchronous data classified according to the destinations in order to insert synchronous information into each synchronous data; and adding an Ethernet header for Ethernet processing, thereby forming the synchronous packets.

Abstract translation: 公开了一种在能够离散地发送同步数据和异步数据的住宅以太网系统中形成要发送的同步帧的方法，其中同步帧包括根据同步数据的目的地形成的同步分组。 该方法包括以下步骤：接收具有不同目的地的同步数据，并根据同步数据的目的地对接收到的同步数据进行分类; 向根据目的地分类的每个同步数据添加同步报头，以将同步信息插入到每个同步数据中; 并添加以太网报头进行以太网处理，从而形成同步数据包。

公开(公告)号：US20060188257A1

公开(公告)日：2006-08-24

申请号：US11337327

申请日：2006-01-23

Applicant: Jong-Kwon Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jun-Ho Koh ,  Jae-Hun Cho

Inventor： Jong-Kwon Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jun-Ho Koh ,  Jae-Hun Cho

IPC: H04J14/00

CPC classification number: H04Q11/0067 ,  H04J3/1694 ,  H04Q2011/0064

Abstract: Transmitting data in a synchronous Ethernet passive optical network employs a synchronous Ethernet for ensuring QoS during transmission of multi-media data, thereby specifying transmission of synchronous data and asynchronous data, respectively. The Ethernet passive optical network has an optical line terminal, which is a central base station, and a plurality of optical network units. The method includes the steps of forming a synchronous frame using the OLT to transmit synchronous data for the ONUs, forming an asynchronous frame using the OLT to transmit asynchronous data for the ONUs, forming a super frame including the synchronous and asynchronous frames using the OLT, and transmitting the super frame using the OLT.

Abstract translation: 在同步以太网无源光网络中传输数据采用同步以太网，以确保多媒体数据传输过程中的QoS，从而分别指定同步数据和异步数据的传输。 以太网无源光网络具有作为中央基站的光线路终端和多个光网络单元。 该方法包括以下步骤：使用OLT形成同步帧以发送ONU的同步数据，使用OLT形成异步帧以传输ONU的异步数据，使用OLT形成包括同步和异步帧的超帧; 并使用OLT发送超帧。

公开(公告)号：US20060114944A1

公开(公告)日：2006-06-01

申请号：US11290410

申请日：2005-11-30

Applicant: Sang-Ho Kim ,  Jae-Hun Cho ,  Jun-Ho Koh ,  Yun-Je Oh

Inventor： Sang-Ho Kim ,  Jae-Hun Cho ,  Jun-Ho Koh ,  Yun-Je Oh

IPC: H04J3/06

CPC classification number: H04N21/435 ,  H04J3/0682 ,  H04N21/235 ,  H04N21/2402 ,  H04N21/64723

Abstract: Disclosed are a method and an apparatus for quantitatively measuring a delay caused according to communication environments during a transmission of multimedia data, particularly, MPEG (Moving Picture Experts Group)-2 TS (Transport Stream), in a multimedia system. The apparatus includes a transmitter that generates and transmits a counter information packet (CIP), which is required to measure the delay in the transmission of the multimedia data, by inserting into the multimedia data the results of counting predetermined bits using a first counter; and a receiver that receives the CIP and computes the delay by comparing the counting results in the CIP with counting results received from a second counter.

Abstract translation: 公开了一种用于在多媒体系统中的多媒体数据，特别是MPEG（运动图像专家组）-2TS（传输流）的传输期间定量测量根据通信环境导致的延迟的方法和装置。 该装置包括：通过使用第一计数器向多媒体数据插入计数预定比特的结果，生成并发送测量多媒体数据的传输延迟所需的计数器信息分组（CIP）的发送器; 以及接收器，其接收CIP并通过将CIP中的计数结果与从第二计数器接收的计数结果进行比较来计算延迟。

公开(公告)号：US20060092985A1

公开(公告)日：2006-05-04

申请号：US11247514

申请日：2005-10-11

Applicant: Jae-Hun Cho ,  Jun-Ho Koh ,  Jong-Kwon Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Sang-Mo Hong ,  Jong-Ho Yoon

Inventor： Jae-Hun Cho ,  Jun-Ho Koh ,  Jong-Kwon Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Sang-Mo Hong ,  Jong-Ho Yoon

IPC: H04J3/12

CPC classification number: H04L47/10 ,  H04L47/13 ,  H04L47/2416 ,  H04L47/2466 ,  H04L47/30

Abstract: A method of enabling transmission of a time-critical control signal event in a sync frame period, such as a pause signal that is generated when the receive buffer of an Ethernet switch is filled with packets beyond a threshold due to congestion of uplink asynchronous data, is disclosed. To transmit time-critical information in a synchronous Ethernet system, a current transmission period is checked upon detection of a time-critical event. If the current transmission period is a sync frame period, time-critical control information is generated, inserted into the first sub-sync frame after the time-critical event, and transmitted. If the current transmission period is an async frame period, a control frame including the time-critical control information is generated and transmitted.

Abstract translation: 一种能够在同步帧周期中发送时间关键控制信号事件的方法，例如当以太网交换机的接收缓冲器由于上行链路异步数据的拥塞而被填充超过阈值时产生的暂停信号， 被披露。 为了在同步以太网系统中传输时间关键信息，在检测到时间紧急事件时检查当前传输周期。 如果当前传输周期是同步帧周期，则产生时间关键控制信息，并在时间紧急事件之后插入到第一子同步帧中并被发送。 如果当前传输周期是异步帧周期，则产生并发送包括时间关键控制信息的控制帧。

公开(公告)号：US20060045081A1

公开(公告)日：2006-03-02

申请号：US11147703

申请日：2005-06-08

Applicant: Jae-Hun Cho ,  Jun-Ho Koh ,  Sang-Ho Kim ,  Kwan-Woong Song ,  Young-Hun Joo ,  Yun-Je Oh

Inventor： Jae-Hun Cho ,  Jun-Ho Koh ,  Sang-Ho Kim ,  Kwan-Woong Song ,  Young-Hun Joo ,  Yun-Je Oh

IPC: H04L12/28

CPC classification number: H03K19/1776 ,  H03K19/17744

Abstract: A field programmable gate array (FPGA) for multiplexing data and enable signals input from a plurality of input ports and outputting the multiplexed signal to one output port is disclosed. The FPGA includes a plurality of memories, which are connected to the input ports, for storing the input data and enable signals, respectively, and outputting one-shot signals at trailing edges of the enable signals; and a finite state machine (FSM) for sequentially reading the data signals stored in the memories in an order of the one-shot signals input from the memories.

公开(公告)号：US20060018334A1

公开(公告)日：2006-01-26

申请号：US11005590

申请日：2004-12-06

Applicant: Jae-Hun Cho ,  Yun-Je Oh ,  Jun-Ho Koh ,  Ki-Cheol Lee

Inventor： Jae-Hun Cho ,  Yun-Je Oh ,  Jun-Ho Koh ,  Ki-Cheol Lee

IPC: H04J3/26

CPC classification number: H04J14/0226 ,  H04H20/69 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282 ,  H04L12/2801 ,  H04N21/43632 ,  H04Q11/0067 ,  H04Q2011/0016

Abstract: A communication/broadcast multiplexer and demultiplexer for multiplexing and demultiplexing communication and broadcast signals using a specific transmission standard in an optical network system that integrates broadcast and communication services using a channel selection technique. The multiplexer comprises a broadcast data input unit, a communication data input unit, and a synchronous Ethernet framer. The broadcast data input unit receives broadcast data switched on a subscriber basis through a broadcast switch in an optical line terminal (OLT) in the system, and transfers it as a synchronous data frame to the synchronous Ethernet framer. The communication data input unit receives communication data on a subscriber basis through an Ethernet switch in the OLT and transfers it as an asynchronous data frame to the synchronous Ethernet framer. The synchronous Ethernet framer converts both the received synchronous and asynchronous data frames into a TDM synchronous Ethernet frame, and outputs the TDM synchronous Ethernet frame.

Abstract translation: 一种通信/广播多路复用器和解复用器，用于在使用信道选择技术集成广播和通信服务的光网络系统中使用特定传输标准来复用和解复用通信和广播信号。 多路复用器包括广播数据输入单元，通信数据输入单元和同步以太网成帧器。 广播数据输入单元通过系统中的光线路终端（OLT）中的广播交换机接收基于用户切换的广播数据，并将其作为同步数据帧传送到同步以太网成帧器。 通信数据输入单元通过OLT中的以太网交换机在用户基础上接收通信数据，并将其作为异步数据帧传送到同步以太网成帧器。 同步以太网成帧器将接收到的同步和异步数据帧转换为TDM同步以太网帧，并输出TDM同步以太网帧。