公开(公告)号：US20060045023A1

公开(公告)日：2006-03-02

申请号：US11147640

申请日：2005-06-08

申请人： Chan-Yul Kim ,  Jun-Ho Koh ,  Jong-Kwon Kim

发明人： Chan-Yul Kim ,  Jun-Ho Koh ,  Jong-Kwon Kim

IPC分类号： H04L1/00

CPC分类号： H04L1/24 ,  H04L1/0002

摘要： Disclosed is a method for estimating an available bandwidth of a network. A plurality of periodic time-stamp packets are transmitted to a receiving-party communication apparatus, which is connected to the network, through the network at a currently-set test transmission rate, and then a changing tendency of transmission delay time differences between the time-stamp packets is checked on the basis of reception times at which the receiving-party communication apparatus have received the respective time-stamp packets. When the transmission delay time differences are located outside a stable range and show a tendency to increase, the test transmission rate is set to a decreased value and the time-stamp packets are repeatedly transmitted at the decreased rate and when the transmission delay time differences are located outside the stable range and show a tendency to decrease, the test transmission rate is set to be an increased value and the time-stamp packets are repeatedly transmitted at the increased rate. A test transmission rate is determined as the available bandwidth when the transmission delay time differences are within the stable range.

摘要翻译： 公开了一种用于估计网络的可用带宽的方法。 多个周期性时间戳分组通过网络以当前设置的测试传输速率被发送到连接到网络的接收方通信设备，然后是时间间隔之间的传输延迟时间差的变化趋势 基于接收方通信装置已经接收到各个时间戳分组的接收时间来检查振幅分组。 当传输延迟时间差位于稳定范围之外并且显示出增加的趋势时，将测试传输速率设置为减小的值，并且以降低的速率重复发送时间戳分组，并且当传输延迟时间差为 位于稳定范围之外并且显示出降低的趋势，将测试传输速率设置为增加的值，并且以增加的速率重复发送时间戳分组。 当传输延迟时间差在稳定范围内时，测试传输速率被确定为可用带宽。

公开(公告)号：US07693077B2

公开(公告)日：2010-04-06

申请号：US11147640

申请日：2005-06-08

申请人： Chan-Yul Kim ,  Jun-Ho Koh ,  Jong-Kwon Kim

发明人： Chan-Yul Kim ,  Jun-Ho Koh ,  Jong-Kwon Kim

IPC分类号： H04B7/216

CPC分类号： H04L1/24 ,  H04L1/0002

摘要： Disclosed is a method for estimating an available bandwidth of a network. A plurality of periodic time-stamp packets are transmitted to a receiving-party communication apparatus, which is connected to the network, through the network at a currently-set test transmission rate, and then a changing tendency of transmission delay time differences between the time-stamp packets is checked on the basis of reception times at which the receiving-party communication apparatus have received the respective time-stamp packets. When the transmission delay time differences are located outside a stable range and show a tendency to increase, the test transmission rate is set to a decreased value and the time-stamp packets are repeatedly transmitted at the decreased rate and when the transmission delay time differences are located outside the stable range and show a tendency to decrease, the test transmission rate is set to be an increased value and the time-stamp packets are repeatedly transmitted at the increased rate. A test transmission rate is determined as the available bandwidth when the transmission delay time differences are within the stable range.

摘要翻译： 公开了一种用于估计网络的可用带宽的方法。 多个周期性时间戳分组通过网络以当前设置的测试传输速率被发送到连接到网络的接收方通信设备，然后是时间间隔之间的传输延迟时间差的变化趋势 基于接收方通信装置已经接收到各个时间戳分组的接收时间来检查振幅分组。 当传输延迟时间差位于稳定范围之外并且显示出增加的趋势时，将测试传输速率设置为减小的值，并且以降低的速率重复发送时间戳分组，并且当传输延迟时间差为 位于稳定范围之外并且显示出降低的趋势，将测试传输速率设置为增加的值，并且以增加的速率重复发送时间戳分组。 当传输延迟时间差在稳定范围内时，测试传输速率被确定为可用带宽。

公开(公告)号：US07450859B2

公开(公告)日：2008-11-11

申请号：US10783804

申请日：2004-02-20

申请人： Young-Hun Joo ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Kyu-Hyung Cho

发明人： Young-Hun Joo ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Kyu-Hyung Cho

IPC分类号： H04J14/02

CPC分类号： H04J14/0226 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282

摘要： An optical subscriber network system is disclosed, which comprises: a server bi-directional optical transmitter including a multiplexer to multiplexes communication data and broadcast data, a server laser diode to converts the multiplexed data into an optical signal, and a server photo diode receive communication data from a subscriber, wherein the server bi-directional optical transmitter transmits the upstream communication data; and a subscriber bi-directional optical receiver including a subscriber laser diode to transmit upstream communication data, a subscriber photo diode to receive the optical signal transmitted from the server bi-directional optical transmitter, and a demultiplexer to demultiplex and divide the multiplexed signal into communication data and broadcast data. In the optical subscriber network system, the optical transmitter and the optical receiver can transceive image signals and Ethernet communication signals in a two-way direction by means of a single laser diode and photo diode.

摘要翻译： 公开了一种光用户网络系统，其包括：服务器双向光发射机，包括多路复用器，用于复用通信数据和广播数据;服务器激光二极管，用于将多路复用数据转换为光信号;以及服务器光电二极管接收通信 来自用户的数据，其中服务器双向光发射机发送上行通信数据; 以及包括用户激光二极管以发送上行通信数据的订户双向光接收机，用于接收从服务器双向光发射机发送的光信号的用户光二极管，以及解复用器，以将多路复用信号解复用并分成通信 数据和广播数据。 在光用户网络系统中，光发射机和光接收机可以通过单个激光二极管和光电二极管双向传输图像信号和以太网通信信号。

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：US07218863B2

公开(公告)日：2007-05-15

申请号：US10638453

申请日：2003-08-11

申请人： Chang-Hyun Lee ,  Chan-Yul Kim ,  Yun-Je Oh ,  Jun-Ho Koh

发明人： Chang-Hyun Lee ,  Chan-Yul Kim ,  Yun-Je Oh ,  Jun-Ho Koh

IPC分类号： H04B10/04

CPC分类号： H04B10/504 ,  H04B10/58

摘要： An optical transmission system for optimizing the bias of a laser diode during an SCM analog optical transmission includes an optical transmitter for converting a baseband electric signal into an optical signal using a laser diode according to the set bias and outputting the optical signal through an optical line, an optical receiver for converting the optical signal transmitted from the optical transmitter into the baseband electric signal, a recovery unit for detecting an error generated according to the bias of the laser diode on the basis of the electric signal converted by the optical receiver, and a bias adjuster for optimally adjusting the bias of the laser diode on the basis of a value of the error detected by the reproducer.

摘要翻译： 一种用于在SCM模拟光传输期间优化激光二极管的偏置的光传输系统包括：光发射机，用于根据设定的偏置，使用激光二极管将基带电信号转换为光信号，并通过光线路输出光信号 用于将从光发送器发送的光信号转换为基带电信号的光接收器，用于根据由光接收器转换的电信号来检测根据激光二极管的偏置产生的误差的恢复单元;以及 偏置调节器，用于基于由再现器检测到的误差的值来最佳地调整激光二极管的偏置。

公开(公告)号：US07428215B2

公开(公告)日：2008-09-23

申请号：US10771942

申请日：2004-02-04

申请人： Yong-Deok Kim ,  Jun-Ho Koh ,  Chan-Yul Kim ,  Yun-Je Oh

发明人： Yong-Deok Kim ,  Jun-Ho Koh ,  Chan-Yul Kim ,  Yun-Je Oh

IPC分类号： H04J1/16 ,  H04J3/14

CPC分类号： H04N21/23611

摘要： Disclosed is a device for filtering out a null packet in a data stream for example an MPEG-2 TS (Transport Stream) to avoid bandwidth waste when it is transmitted to a backbone network. The device includes a plurality of receiving interfaces, a filter unit, and a controller. The receiving interfaces receive parallel data, such as DVB-ASI (Digital Video Broadcasting-Asynchronous Serial Interface) inputs as channel-by-channel MPEG-2 data. The filter unit counts the respective numbers of data packets and non-data packets of the data input from the receiving interfaces and filters a null packet in the data. A network transmission unit transmits the filtered data to a backbone network. The controller calculates a bit rate based on both of the count numbers received from the filter unit.

摘要翻译： 公开了一种用于过滤出例如MPEG-2TS（传输流）的数据流中的零分组的装置，以避免在传输到骨干网络时的带宽浪费。 该装置包括多个接收接口，滤波器单元和控制器。 接收接口接收并行数据，例如作为逐个通道MPEG-2数据的DVB-ASI（数字视频广播 - 异步串行接口）输入。 滤波器单元对从接收接口输入的数据的数据分组和非数据分组的数量进行计数，并对数据中的零分组进行过滤。 网络传输单元将过滤的数据发送到骨干网络。 控制器基于从滤波器单元接收的两个计数值计算比特率。

公开(公告)号：US20060152628A1

公开(公告)日：2006-07-13

申请号：US11266824

申请日：2005-11-04

申请人： Sung-Jin Park ,  Chan-Yul Kim ,  Kwan-Lae Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jun-Ho Koh

发明人： Sung-Jin Park ,  Chan-Yul Kim ,  Kwan-Lae Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jun-Ho Koh

IPC分类号： H04N7/16 ,  H04N5/45

CPC分类号： H04N7/163 ,  H04N5/4401 ,  H04N5/45 ,  H04N21/4316 ,  H04N21/4398 ,  H04N21/4402

摘要： A multimedia signal matching system for performing a picture-in-picture function includes: at least one set-top box including a decoder for decoding multimedia signals in a predetermined reference format and generating a control signal for performing the picture-in-picture function; and a multimedia matching device for receiving multimedia signals in various formats from a broadcast communication network and the control signal from the set-top box, processing the received multimedia signals into signals with the predetermined reference format responsive to the control signal.

摘要翻译： 用于执行画中画功能的多媒体信号匹配系统包括：至少一个机顶盒，包括用于以预定参考格式解码多媒体信号的解码器，并产生用于执行画中画功能的控制信号; 以及多媒体匹配装置，用于从广播通信网络接收各种格式的多媒体信号和来自机顶盒的控制信号，响应于控制信号将接收到的多媒体信号处理成具有预定参考格式的信号。

公开(公告)号：US20050047790A1

公开(公告)日：2005-03-03

申请号：US10783804

申请日：2004-02-20

申请人： Young-Hun Joo ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Kyu-Hyung Cho

发明人： Young-Hun Joo ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Kyu-Hyung Cho

IPC分类号： H04J3/00 ,  H04B10/00 ,  H04B10/27 ,  H04J14/02 ,  H04J14/08 ,  H04L12/18 ,  H04L12/44 ,  H04Q11/00

CPC分类号： H04J14/0226 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282

摘要： An optical subscriber network system is disclosed, which comprises: a server bi-directional optical transmitter including a multiplexer to multiplexes communication data and broadcast data, a server laser diode to converts the multiplexed data into an optical signal, and a server photo diode receive communication data from a subscriber, wherein the server bi-directional optical transmitter transmits the upstream communication data; and a subscriber bi-directional optical receiver including a subscriber laser diode to transmit upstream communication data, a subscriber photo diode to receive the optical signal transmitted from the server bi-directional optical transmitter, and a demultiplexer to demultiplex and divide the multiplexed signal into communication data and broadcast data. In the optical subscriber network system, the optical transmitter and the optical receiver can transceive image signals and Ethernet communication signals in a two-way direction by means of a single laser diode and photo diode.

摘要翻译： 公开了一种光用户网络系统，其包括：服务器双向光发射机，包括多路复用器，用于复用通信数据和广播数据;服务器激光二极管，用于将多路复用数据转换为光信号;以及服务器光电二极管接收通信 来自用户的数据，其中服务器双向光发射机发送上行通信数据; 以及包括用户激光二极管以发送上行通信数据的订户双向光接收机，用于接收从服务器双向光发射机发送的光信号的用户光二极管，以及解复用器，以将多路复用信号解复用并分成通信 数据和广播数据。 在光用户网络系统中，光发射机和光接收机可以通过单个激光二极管和光电二极管双向传输图像信号和以太网通信信号。

公开(公告)号：US07706416B2

公开(公告)日：2010-04-27

申请号：US11190416

申请日：2005-07-27

申请人： Han-Sang Kim ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Yun-Je Oh

发明人： Han-Sang Kim ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Yun-Je Oh

IPC分类号： H04J3/04 ,  H04J3/00

CPC分类号： H04J14/0226 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282

摘要： An optical communication system for transmitting telephone voice data to a subscriber terminal using an optical line is disclosed. The system includes an OLT (Optical Line Terminal) multiplexing the telephone voice data together with the broadcasting data and communication data, converting the optical signals transferred upward into electric signals, demultiplexing and converting the uplink telephone voice data into analog telephone voice signals to transfer the converted analog telephone voice signals to a PSTN; a plurality of ONTs (Optical Network Terminals) for converting the optical signals transferred from the OLT into electric signals, demultiplexing and converting the demultiplexed downlink telephone voice data into analog signals to transfer the converted analog signals to subscribers' telephones; and an optical branching filter for branching the signals from the OLT to the plurality of ONTs, combining, and transferring the signals from the plurality of ONTs to the OLT.

摘要翻译： 公开了一种用于使用光线路将电话语音数据发送到用户终端的光通信系统。 该系统包括将电话语音数据与广播数据和通信数据一起复用的OLT（光线路终端），将向上传送的光信号转换为电信号，解复用并将上行电话语音数据转换为模拟电话语音信号，以将 将模拟电话语音信号转换成PSTN; 用于将从OLT传送的光信号转换为电信号的多个ONT（光网络终端），解复用和将解复用的下行电话语音数据转换为模拟信号，以将转换的模拟信号传送到订户的电话; 以及用于将来自OLT的信号分支到多个ONT的光分路滤波器，组合并将来自多个ONT的信号传送到OLT。

公开(公告)号：US07646432B2

公开(公告)日：2010-01-12

申请号：US11266824

申请日：2005-11-04

申请人： Sung-Jin Park ,  Chan-Yul Kim ,  Kwan-Lae Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jun-Ho Koh

发明人： Sung-Jin Park ,  Chan-Yul Kim ,  Kwan-Lae Kim ,  Chang-Sup Shim ,  Yun-Je Oh ,  Jun-Ho Koh

IPC分类号： H04N5/16

CPC分类号： H04N7/163 ,  H04N5/4401 ,  H04N5/45 ,  H04N21/4316 ,  H04N21/4398 ,  H04N21/4402

摘要： A multimedia signal matching system for performing a picture-in-picture function includes: at least one set-top box including a decoder for decoding multimedia signals in a predetermined reference format and generating a control signal for performing the picture-in-picture function; and a multimedia matching device for receiving multimedia signals in various formats from a broadcast communication network and the control signal from the set-top box, processing the received multimedia signals into signals with the predetermined reference format responsive to the control signal.

摘要翻译： 用于执行画中画功能的多媒体信号匹配系统包括：至少一个机顶盒，包括用于以预定参考格式解码多媒体信号的解码器，并产生用于执行画中画功能的控制信号; 以及多媒体匹配装置，用于从广播通信网络接收各种格式的多媒体信号和来自机顶盒的控制信号，响应于控制信号将接收到的多媒体信号处理成具有预定参考格式的信号。