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公开(公告)号：US08799741B2
公开(公告)日：2014-08-05
申请号：US13029802
申请日：2011-02-17
IPC分类号： H03M13/00
CPC分类号： H04L12/4625
摘要： Provided is a method of transmitting an Ethernet frame via a network bridge, the method includes receiving a frame header from a previous node connected to the network bridge; receiving a header cyclic redundancy check (CRC) flag and header CRC with respect to the frame header from the previous node; determining whether to forward the Ethernet frame including the frame header by referring to the header CRC flag and the header CRC; and forwarding the Ethernet frame from the previous node to a next node connected to the network bridge according to the determination.
摘要翻译： 提供了一种经由网桥发送以太网帧的方法，该方法包括从连接到网桥的先前节点接收帧头; 从前一个节点接收关于帧头的报头循环冗余校验（CRC）标志和报头CRC; 通过参考标题CRC标志和标题CRC确定是否转发包括帧头的以太帧; 并根据该确定将以太网帧从先前节点转发到连接到网桥的下一个节点。
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2.发明授权Network synchronization method and apparatus for performing time synchronization between nodes 有权用于在节点之间执行时间同步的网络同步方法和装置公开(公告)号：US08467487B2
公开(公告)日：2013-06-18
申请号：US12780281
申请日：2010-05-14
申请人： Geoffrey M. Garner , Hyunsurk Ryu , Keun Joo Park , Jun Haeng Lee
发明人： Geoffrey M. Garner , Hyunsurk Ryu , Keun Joo Park , Jun Haeng Lee
IPC分类号： H04L7/00
CPC分类号： H04J3/0682 , H04J3/0667 , H04J3/0673 , H04J3/0679
摘要： Provided is a network synchronization method and apparatus for performing a time synchronization between nodes. When a system starts up and the time synchronization between the nodes is initiated, the network synchronization method and apparatus may enhance jitter, wander, and a time synchronization performance by gradually increasing a window size for a propagation time measurement. When a full window of propagation time measurements is collected, the network synchronization method and apparatus may enhance jitter, wander, and the time synchronization performance by applying an exponential to a computation of an average propagation time value.
摘要翻译： 提供了一种用于在节点之间执行时间同步的网络同步方法和装置。 当启动系统并且启动节点之间的时间同步时，网络同步方法和装置可以通过逐渐增加传播时间测量的窗口大小来增强抖动，漂移和时间同步性能。 当收集传播时间测量的全部窗口时，网络同步方法和装置可以通过对平均传播时间值的计算应用指数来增强抖动，漂移和时间同步性能。
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公开(公告)号：US20110149970A1
公开(公告)日：2011-06-23
申请号：US13029802
申请日：2011-02-17
IPC分类号： H04L12/56
CPC分类号： H04L12/4625
摘要： Provided is a method of transmitting an Ethernet frame via a network bridge, the method includes receiving a frame header from a previous node connected to the network bridge; receiving a header cyclic redundancy check (CRC) flag and header CRC with respect to the frame header from the previous node; determining whether to forward the Ethernet frame including the frame header by referring to the header CRC flag and the header CRC; and forwarding the Ethernet frame from the previous node to a next node connected to the network bridge according to the determination.
摘要翻译： 提供了一种经由网桥发送以太网帧的方法，该方法包括从连接到网桥的先前节点接收帧头; 从前一个节点接收关于帧头的报头循环冗余校验（CRC）标志和报头CRC; 通过参考标题CRC标志和标题CRC确定是否转发包括帧头的以太帧; 并根据该确定将以太网帧从先前节点转发到连接到网桥的下一个节点。
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公开(公告)号：US07908540B2
公开(公告)日：2011-03-15
申请号：US11591591
申请日：2006-11-02
IPC分类号： H03M13/00
CPC分类号： H04L12/4625
摘要： Provided is a method of transmitting an Ethernet frame via a network bridge, the method includes receiving a frame header from a previous node connected to the network bridge; receiving a header cyclic redundancy check (CRC) flag and header CRC with respect to the frame header from the previous node; determining whether to forward the Ethernet frame including the frame header by referring to the header CRC flag and the header CRC; and forwarding the Ethernet frame from the previous node to a next node connected to the network bridge according to the determination.
摘要翻译： 提供了一种经由网桥发送以太网帧的方法，该方法包括从连接到网桥的先前节点接收帧头; 从前一个节点接收关于帧头的报头循环冗余校验（CRC）标志和报头CRC; 通过参考标题CRC标志和标题CRC确定是否转发包括帧头的以太帧; 并根据该确定将以太网帧从先前节点转发到连接到网桥的下一个节点。
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公开(公告)号：US07668151B2
公开(公告)日：2010-02-23
申请号：US11487408
申请日：2006-07-17
CPC分类号： H04J3/0667 , H04L12/2803
摘要： Provided are a time synchronizing method and apparatus based on a time stamp. The time synchronizing method includes: transmitting a local time stamp based on a free-running local clock to a master node; receiving a response time stamp from the master node; calculating a delta time value based on the response time stamp; filtering the delta-time using a digital low pass filter running at the free-running local clock rate; and adjusting a local clock time based on the filtered delta time value.
摘要翻译： 提供了一种基于时间戳的时间同步方法和装置。 时间同步方法包括：基于自由运行的本地时钟向主节点发送本地时间戳; 从主节点接收响应时间戳; 基于响应时间戳计算增量时间值; 使用以自由运行的本地时钟速率运行的数字低通滤波器来过滤增量时间; 以及基于滤波的增量时间值来调整本地时钟时间。
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6.发明申请Proximity control method for transmitting content and node in network using the proximity control method 有权使用接近控制方法在网络中传输内容和节点的接近控制方法公开(公告)号：US20080126561A1
公开(公告)日：2008-05-29
申请号：US11878171
申请日：2007-07-20
申请人： Hyun-Surk Ryu , Geoffrey M. Garner , Cornelis Johannis Den Hollander , Fei Fei Feng , Hong-Kyu Jeong
发明人： Hyun-Surk Ryu , Geoffrey M. Garner , Cornelis Johannis Den Hollander , Fei Fei Feng , Hong-Kyu Jeong
IPC分类号： G06F15/16
CPC分类号： H04L12/64 , H04L47/10 , H04L63/10 , H04L2463/101
摘要： A proximity control method for transmitting a content and a network node using the proximity control method is provided. A proximity control method for transmitting a content performs a different proximity control mechanism depending on each of a single proximity control (SPC) domain, a mixed proximity control (MPC) domain, and a network-based service domain, and each of nodes performs the different proximity control mechanism based on a physical distance from a neighboring node, the nodes being comprised in the SPC domain, the MPC domain, and the network-based service domain.
摘要翻译： 提供了一种使用接近度控制方法发送内容和网络节点的接近度控制方法。 用于发送内容的接近度控制方法根据单个接近控制（SPC）域，混合接近度控制（MPC）域和基于网络的服务域中的每一个执行不同的接近程度控制机制，并且每个节点执行 基于与相邻节点的物理距离的不同接近度控制机制，SPC域中包含的节点，MPC域和基于网络的服务域。
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7.发明授权Method to accurately and securely determine propagation delay and distance between sending and receiving node in packet network using cut-through approach and packet network node for executing the method 有权使用直通方法和分组网络节点来准确，安全地确定分组网络中发送和接收节点之间的传播延迟和距离的方法，用于执行该方法公开(公告)号：US08879564B2
公开(公告)日：2014-11-04
申请号：US13118514
申请日：2011-05-30
申请人： Hyun Surk Ryu , Geoffrey M. Garner , Cornelis Johannis Den Hollander , Fei Fei Feng , Kyu Hong Jung
发明人： Hyun Surk Ryu , Geoffrey M. Garner , Cornelis Johannis Den Hollander , Fei Fei Feng , Kyu Hong Jung
CPC分类号： H04J3/0682 , H04L43/0864 , H04L43/10
摘要： A method and system for measuring a distance between nodes in a packet network are provided. The system and method include measuring and storing a departure time of a ping packet sent from a source node to a destination node, sending a response packet with respect to the ping packet from the destination node to the source node, cutting through the ping packet or response packet to a successive node or the destination node without an intermediate node delay, computing a round-trip time by measuring an arrival time of the response packet at the source node and measuring the distance between the nodes, based on the round-trip time and speed of the ping packet.
摘要翻译： 提供了一种用于测量分组网络中的节点之间的距离的方法和系统。 该系统和方法包括测量和存储从源节点发送到目的地节点的ping分组的出发时间，将来自目的地节点的ping分组的响应分组发送到源节点，切断ping分组或 响应分组到没有中间节点延迟的连续节点或目的地节点，通过测量源节点处的响应分组的到达时间并且基于往返时间来测量节点之间的距离来计算往返时间 和ping包的速度。
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8.发明授权Network system supporting spanning tree protocol, relay apparatus thereof, and method of creating spanning tree topology thereof 有权支持生成树协议的网络系统，其中继装置，以及创建生成树拓扑的方法公开(公告)号：US08223671B2
公开(公告)日：2012-07-17
申请号：US12048540
申请日：2008-03-14
申请人： Fei Fei Feng , Hong-kyu Jung , Byung-suk Kim , Geoffrey M Garner
发明人： Fei Fei Feng , Hong-kyu Jung , Byung-suk Kim , Geoffrey M Garner
IPC分类号： H04L12/28
CPC分类号： H04L12/462 , H04L45/00 , H04L45/48 , H04L67/327
摘要： Provided are a network system supporting a spanning tree protocol (STP), a relay apparatus thereof, and a method of creating a spanning tree. Proposed is a method of creating a tree topology, between AVB bridges, using a STP message including a group MAC address which is different from that used in a non-AVB (Audio Video Bridging) bridge (that is, a bridge without the function of AVB), in order to form a minimum number of AVB clouds. Therefore, it is possible to efficiently ensure transmission quality of a multimedia stream such as an AVB stream.
摘要翻译： 提供了支持生成树协议（STP）的网络系统，其中继装置以及创建生成树的方法。 提出了一种在AVB网桥之间创建树形拓扑的方法，使用包括与非AVB（音频视频桥接）桥中使用的组MAC地址不同的组MAC地址的STP消息（即，不具有 AVB），以形成最小数量的AVB云。 因此，可以有效地确保诸如AVB流之类的多媒体流的传输质量。
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9.发明授权Method to accurately and securely determine propagation delay and distance between sending and receiving node in packet network using cut-through approach and packet network node for executing the method 有权使用直通方法和分组网络节点来准确，安全地确定分组网络中发送和接收节点之间的传播延迟和距离的方法，用于执行该方法公开(公告)号：US08018973B2
公开(公告)日：2011-09-13
申请号：US11600046
申请日：2006-11-16
申请人： Hyun Surk Ryu , Geoffrey M. Garner , Cornelis Johannis Den Hollander , Fei Fei Feng , Kyu Hong Jung
发明人： Hyun Surk Ryu , Geoffrey M. Garner , Cornelis Johannis Den Hollander , Fei Fei Feng , Kyu Hong Jung
CPC分类号： H04J3/0682 , H04L43/0864 , H04L43/10
摘要： A method and system for measuring a distance between nodes in a packet network are provided. The system and method include measuring and storing a departure time of a ping packet sent from a source node to a destination node, sending a response packet with respect to the ping packet from the destination node to the source node, cutting through the ping packet or response packet to a successive node or the destination node without an intermediate node delay, computing a round-trip time by measuring an arrival time of the response packet at the source node and measuring the distance between the nodes, based on the round-trip time and speed of the ping packet.
摘要翻译： 提供了一种用于测量分组网络中的节点之间的距离的方法和系统。 该系统和方法包括测量和存储从源节点发送到目的地节点的ping分组的出发时间，将来自目的地节点的ping分组的响应分组发送到源节点，切断ping分组或 响应分组到没有中间节点延迟的连续节点或目的地节点，通过测量源节点处的响应分组的到达时间并且基于往返时间来测量节点之间的距离来计算往返时间 和ping包的速度。
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公开(公告)号：US07876791B2
公开(公告)日：2011-01-25
申请号：US12178715
申请日：2008-07-24
申请人： Hong-kyu Jung , Fei Fei Feng , Geoffrey M. Garner , Byung-suk Kim , Chul-ki Lee
发明人： Hong-kyu Jung , Fei Fei Feng , Geoffrey M. Garner , Byung-suk Kim , Chul-ki Lee
IPC分类号： H04J3/06
CPC分类号： H04J3/0667
摘要： Provided are a synchronizing apparatus and method for performing synchronization in a packet network. The synchronizing apparatus includes a sampling unit to measure a time difference using a plurality of time stamps included in a plurality of two-way message packets, an estimating unit to estimate a frequency offset by applying a baseline algorithm to the time difference, a verifying unit to verify the frequency offset to remove an error caused by network delay variation, and a synchronizing unit to remove the frequency offset from a local slave clock signal and generate a slave clock signal synchronized to a clock signal of a master device.
摘要翻译： 提供了一种用于在分组网络中执行同步的同步装置和方法。 同步装置包括采样单元，用于使用包含在多个双向消息分组中的多个时间戳来测量时间差;估计单元，用于通过对时间差应用基线算法来估计频率偏移;验证单元 以验证频率偏移以消除由网络延迟变化引起的误差，以及同步单元，以从本地从机时钟信号中移除频偏，并产生与主器件的时钟信号同步的从时钟信号。
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