公开(公告)号：US20060221994A1

公开(公告)日：2006-10-05

申请号：US11395492

申请日：2006-03-31

申请人： Jae-Hun Cho ,  Jong-Ho Yoon ,  Sang-Ho Kim ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jun-Ho Koh ,  Hye-Jin Nam

发明人： Jae-Hun Cho ,  Jong-Ho Yoon ,  Sang-Ho Kim ,  Kwan-Soo Lee ,  Yun-Je Oh ,  Jun-Ho Koh ,  Hye-Jin Nam

IPC分类号： H04L12/43

CPC分类号： H04L12/413 ,  H04L12/403

摘要： A method for allocating slots for a synchronous Ethernet service in a Residential Ethernet system includes the steps of: receiving requests for synchronous Ethernet services from terminals requiring the synchronous Ethernet services; calculating a number of slots for each synchronous Ethernet service, and allocating slots for each terminal based on the calculated number of slots; transmitting information about the allocated slots through at least one Residential Ethernet switch; and receiving acknowledgement signals from the terminals in response to the allocated slot information and providing the synchronous Ethernet services using the allocated slots.

摘要翻译： 一种用于在住宅以太网系统中为同步以太网服务分配时隙的方法包括以下步骤：从需要同步以太网业务的终端接收对同步以太网业务的请求; 计算每个同步以太网业务的时隙数量，以及基于所计算的时隙数量为每个终端分配时隙; 通过至少一个住宅以太网交换机发送关于所分配的时隙的信息; 以及响应于所分配的时隙信息从终端接收确认信号，并使用所分配的时隙提供同步以太网业务。

公开(公告)号：US20060104302A1

公开(公告)日：2006-05-18

申请号：US11265983

申请日：2005-11-03

申请人： Jae-Hun Cho ,  Sang-Ho Kim ,  Jun-Ho Koh ,  Jong-Kwon Kim ,  Yun-Je Oh ,  Jong-Ho Yoon

发明人： Jae-Hun Cho ,  Sang-Ho Kim ,  Jun-Ho Koh ,  Jong-Kwon Kim ,  Yun-Je Oh ,  Jong-Ho Yoon

IPC分类号： H04L12/413

CPC分类号： H04L12/413

摘要： A method of configuring system layers for a synchronous Ethernet is provided. In the method, a physical layer takes charge of input and output of an Ethernet frame in direct relation to hardware, an xMII (x Media Independent Interface) layer connects the physical layer to a data link layer. The data link layer has a sync frame processor for processing a synchronous frame and an async frame processor for processing an asynchronous frame. A parser and multiplexer (MUX), included in the x MII layer, construct a super frame with a synchronous frame and an asynchronous frame, transmit the super frame through the physical layer, parse a received super frame into a synchronous frame and an asynchronous frame, and transmit the synchronous and asynchronous frames to the data link layer.

摘要翻译： 提供了一种为同步以太网配置系统层的方法。 在该方法中，物理层负责与硬件直接相关的以太网帧的输入和输出，xMII（x媒体独立接口）层将物理层连接到数据链路层。 数据链路层具有用于处理同步帧的同步帧处理器和用于处理异步帧的异步帧处理器。 包括在x MII层中的解析器和多路复用器（MUX）构造具有同步帧和异步帧的超帧，通过物理层发送超帧，将接收到的超帧解析为同步帧和异步帧 ，并将同步和异步帧发送到数据链路层。

公开(公告)号：US20060230146A1

公开(公告)日：2006-10-12

申请号：US11375830

申请日：2006-03-15

申请人： Sihai Wang ,  Sang-Ho Kim ,  Jae-Hun Cho ,  Fei-Fei Feng ,  Yun-Je Oh ,  Jun-Ho Koh

发明人： Sihai Wang ,  Sang-Ho Kim ,  Jae-Hun Cho ,  Fei-Fei Feng ,  Yun-Je Oh ,  Jun-Ho Koh

IPC分类号： G06F15/173

CPC分类号： H04L12/413

摘要： A method for generating a super frame of a predetermined size in a a residential Ethernet system for separately transmitting isochronous data and asynchronous data includes the steps of: receiving by the residential Ethernet system the isochronous data and the asynchronous data to be transmitted through the residential Ethernet system; dividing the received isochronous data into a plurality of sub-frames according to synchronous links; inserting an Ethernet header into each of the sub-frames, thereby generating a plurality of isochronous packets; and employing a remaining area, which is obtained by excepting an area of the isochronous packets from the predetermined size, as an asynchronous packet area, and inserting asynchronous packets including the asynchronous data into the asynchronous packet area.

摘要翻译： 一种用于在住宅以太网系统中生成预定尺寸的超帧的方法，用于分别发送等时数据和异步数据包括以下步骤：由住宅以太网系统接收将通过住宅以太网系统传输的同步数据和异步数据 ; 根据同步链路将接收到的等时数据划分为多个子帧; 将以太网报头插入到每个子帧中，从而生成多个同步分组; 并且将通过将来自预定大小的同步分组的区域除外获得的剩余区域用作异步分组区域，并将包括异步数据的异步分组插入到异步分组区域中。

公开(公告)号：US20060067367A1

公开(公告)日：2006-03-30

申请号：US11223266

申请日：2005-09-09

申请人： Jae-Hun Cho ,  Jun-Ho Koh ,  Jong-Kwon Kim ,  Yun-Je Oh ,  Jong-Ho Yoon

发明人： Jae-Hun Cho ,  Jun-Ho Koh ,  Jong-Kwon Kim ,  Yun-Je Oh ,  Jong-Ho Yoon

IPC分类号： H04L12/56 ,  H04J3/06 ,  H04L12/28

CPC分类号： H04J3/0697 ,  H04J3/0641 ,  H04L49/90

摘要： Disclosed is a method for establishing a synchronization in a synchronous Ethernet system. Devices are classified according to the type of the devices, and a device having a highest class in the synchronous Ethernet system is detected, then it is determined if the device having the highest class is able to serve as the timing master. If so, the device having the highest class is able to serve as the timing master if only one such device is detected; otherwise, the timing master between devices having the highest class is selected through a collision algorithm.

摘要翻译： 公开了一种在同步以太网系统中建立同步的方法。 设备根据设备的类型进行分类，并且检测到在同步以太网系统中具有最高级别的设备，则确定具有最高级别的设备是否能够用作定时主机。 如果是，如果仅检测到一个这样的设备，具有最高等级的设备能够用作定时主机; 否则，通过碰撞算法选择具有最高等级的设备之间的定时主机。

公开(公告)号：US20060092985A1

公开(公告)日：2006-05-04

申请号：US11247514

申请日：2005-10-11

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

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

IPC分类号： H04J3/12

CPC分类号： H04L47/10 ,  H04L47/13 ,  H04L47/2416 ,  H04L47/2466 ,  H04L47/30

摘要： 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.

摘要翻译： 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：US20080002625A1

公开(公告)日：2008-01-03

申请号：US11644575

申请日：2006-12-22

申请人： Jae-Hun Cho ,  Seong-Taek Hwang ,  Jong-Ho Yoon ,  Yun-Je Oh ,  Hoon Kim ,  Han-Kyun Jung

发明人： Jae-Hun Cho ,  Seong-Taek Hwang ,  Jong-Ho Yoon ,  Yun-Je Oh ,  Hoon Kim ,  Han-Kyun Jung

IPC分类号： H04Q7/00

CPC分类号： H04W8/26 ,  H04W4/00 ,  H04W8/005 ,  H04W40/246 ,  H04W40/36 ,  H04W80/04 ,  H04W88/08

摘要： Disclosed is a bridged portable internet system, which includes: a plurality of edge bridges entirely connected as a mesh structure to form a core network, and configured as a layer 2 switch; a plurality of Radio Access Stations (RASs) connected to one of the plurality of edge bridges to provide portable internet services to Mobile Nodes (MNs) within the range of services; and a Neighbor Discovery Server (NDS) for supporting neighbor discovery of components in the network and storing and managing configuration information of the components, wherein each of the plurality of edge bridges maintains an optimal path through a predetermined routing protocol, identifies the destination of a Media Access Control (MAC) frame transmitted by an MN connected to an edge bridge itself through a corresponding RAS by referring to the configuration information from the NDS so as to transmit a corresponding MAC frame to the MAC address of an edge bridge to which a corresponding CN is connected by performing MAC in MAC encapsulation if receiving a MAC in MAC encapsulated frame with its own MAC address as a destination, and performs MAC in MAC encapsulation with the frame to delete an outer MAC address and to transmit an original MAC frame to a corresponding MN.

摘要翻译： 公开了一种桥接便携式互联网系统，其包括：多个边缘网桥，其完全连接为网状结构以形成核心网络，并且被配置为层2交换机; 连接到所述多个边缘网桥之一的多个无线电接入站（RAS），以向所述服务范围内的移动节点（MN）提供便携式因特网服务; 和邻居发现服务器（NDS），用于支持网络中组件的邻居发现，并存储和管理组件的配置信息，其中多个边缘网桥中的每一个维护通过预定路由协议的最佳路径，识别一个 通过参考来自NDS的配置信息，通过相应的RAS连接到边缘网桥本身的MN发送的媒体访问控制（MAC）帧，以便将相应的MAC帧发送到对应的边缘网桥的MAC地址， 如果以MAC自身的MAC地址为目的地的MAC封装帧中接收到MAC，则MAC通过MAC封装进行MAC连接，并且利用该MAC进行MAC封装，以删除外部MAC地址并将原始MAC帧发送到 相应的MN。

公开(公告)号：US20080056167A1

公开(公告)日：2008-03-06

申请号：US11737797

申请日：2007-04-20

申请人： Sang-Ho KIM ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Jae-Hun Cho ,  Jae-Hoon Lee

发明人： Sang-Ho KIM ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Jae-Hun Cho ,  Jae-Hoon Lee

IPC分类号： H04L5/14 ,  H04L5/16

CPC分类号： H04B10/25759 ,  H04W88/08 ,  H04W88/085

摘要： A radio-over-fiber (RoF) system and method for controlling a transmission time is provided. In a Time Division Duplex (TDD) wireless communication system comprising a Base Station (BS) having a donor and a remote connected thereto via am optical fiber, upstream and downstream Radio Frequency (RF) signals are transmitted and received, and by reliably transmitting a switch control signal to the remote and simultaneously compensating for a transmission time delay occurring in the optical cable, time synchronization of the upstream and downstream RF signals transmitted and received via antennas of the BS and the remote is controlled, thereby efficiently increasing the performance of a TDD wireless service system.

摘要翻译： 提供了一种用于控制传输时间的无线电光纤（RoF）系统和方法。 在包括具有供体的基站（BS）和经由光纤远程连接的基站（TDD）的时分双工（TDD）无线通信系统中，发送和接收上行和下行射频（RF）信号，并且通过可靠地发送 切换控制信号到远端，并同时补偿在光缆中发生的传输时延，控制通过BS和遥控器的天线发送和接收的上行和下行RF信号的时间同步，从而有效提高 TDD无线服务系统。

公开(公告)号：US20050141623A1

公开(公告)日：2005-06-30

申请号：US10862610

申请日：2004-06-07

申请人： Jae-Hun Cho ,  Sang-Ho Kim ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Yun-Je Oh

发明人： Jae-Hun Cho ,  Sang-Ho Kim ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Yun-Je Oh

IPC分类号： H04L29/10 ,  H04N7/12 ,  H04N7/24

CPC分类号： H04L12/413 ,  H04L65/607 ,  H04N21/23608 ,  H04N21/4344 ,  H04N21/43632

摘要： Disclosed is a transport stream transmission apparatus, for example an MPEG Motion Picture Experts Group)—transport stream transmission apparatus. The transmission apparatus comprising a transmitter including a first media independent interface to generate a data stream, the data stream having a preamble and at least one transport stream, and a first physical layer device to receive a data frame from the first media independent interface, a back plane board to receive the data frame from the transmitter, and enable distribution of the received data frame to individual subscribers, and a second media independent interface to receive at least one transport stream from the second physical layer device, and enable individual subscribers to received transport stream, wherein the second media independent interface includes a second physical layer device to identify a preamble of the data frame received from the back plane board, perform a clock recovery operation, and generate at least one transport stream of the data frame.

摘要翻译： 公开了传输流传输装置，例如MPEG运动图像专家组） - 传输流传输装置。 传输设备包括发射机，其包括用于生成数据流的第一媒体独立接口，所述数据流具有前导码和至少一个传输流，以及第一物理层设备，用于从所述第一媒体独立接口接收数据帧; 背板接收来自发射机的数据帧，并且使接收到的数据帧能够分配给各个用户;以及第二媒体独立接口，用于从第二物理层设备接收至少一个传输流，并使各个用户能够接收 传输流，其中所述第二媒体独立接口包括第二物理层设备，以识别从所述背板接收的数据帧的前同步码，执行时钟恢复操作，并且生成所述数据帧的至少一个传输流。

公开(公告)号：US20050169181A1

公开(公告)日：2005-08-04

申请号：US10862303

申请日：2004-06-07

申请人： Sang-Ho Kim ,  Jae-Hun Cho ,  Kyu-Hyung Cho ,  Yun-Je Oh

发明人： Sang-Ho Kim ,  Jae-Hun Cho ,  Kyu-Hyung Cho ,  Yun-Je Oh

IPC分类号： H04L12/70 ,  H04L12/853 ,  H04N7/12 ,  H04N7/173 ,  H04N19/00 ,  H04N19/102 ,  H04N19/152 ,  H04N19/423 ,  H04N19/70 ,  H04N21/238 ,  H04N21/24 ,  H04L12/26

CPC分类号： H04N21/23406 ,  H04N21/23608

摘要： An apparatus and a method for adjusting a transmission rate of data, in particular a moving picture experts group 2 (MPEG-2) data. The apparatus includes a receiving buffer for buffering multi program transport stream (MPTS) packets received at various transmission rates, and a packet storage for storing MPEG-2 null packets. A signal processing section reads data buffered in the receiving buffer at a predetermined output transmission rate, wherein the signal processing section stops an operation of reading data buffered in the receiving buffer, and reads and transmits the MPEG-2 null packets stored in the packet storage when a predetermined underflow occurrence forecast situation is caused in the receiving buffer. In addition, the method for adjusting a transmission rate of MPEG-2 data includes: reading and transmitting buffered data when a current buffered data point (CF) reaches a predetermined data output point (HF) in a receiving buffer which receives the input MPST packets, stopping the reading of data buffered in the receiving buffer and transmitting MPEG-2 null packets when the current buffered data point ( CF) reaches a predetermined underflow forecast point (QF) in the process of reading the buffered data; and reading and transmitting buffered data when the current buffered data point (CF) reaches the data output point (HF) in the process of transmitting the null packets.

摘要翻译： 一种用于调整数据传输速率，特别是运动图像专家组2（MPEG-2）数据的装置和方法。 该装置包括用于缓冲以各种传输速率接收的多节目传输流（MPTS）分组的接收缓冲器和用于存储MPEG-2空分组的分组存储器。 信号处理部分以预定的输出传输速率读取在接收缓冲器中缓冲的数据，其中信号处理部分停止读取在接收缓冲器中缓冲的数据的操作，并且读取并发送存储在分组存储器中的MPEG-2空分组 当在接收缓冲器中引起预定的下溢发生预测情况时。 此外，用于调整MPEG-2数据的传输速率的方法包括：当当前缓冲数据点（CF）达到接收输入MPST分组的接收缓冲器中的预定数据输出点（HF）时，读取和发送缓冲数据 在读取缓冲数据的过程中，当当前缓冲数据点（CF）达到预定下溢预测点（QF）时，停止读取缓冲在接收缓冲器中的数据并发送MPEG-2空分组; 以及在发送空分组的过程中当当前缓冲数据点（CF）到达数据输出点（HF）时读取和发送缓冲数据。

公开(公告)号：US20060114944A1

公开(公告)日：2006-06-01

申请号：US11290410

申请日：2005-11-30

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

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

IPC分类号： H04J3/06

CPC分类号： H04N21/435 ,  H04J3/0682 ,  H04N21/235 ,  H04N21/2402 ,  H04N21/64723

摘要： 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.

摘要翻译： 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。