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1. 发明申请

US20060147207A1 System and method of time-slotted optical burst switching 有权
公开(公告)号：US20060147207A1
公开(公告)日：2006-07-06
申请号：US11321597
申请日：2005-12-30
申请人： Cornelis Den Hollander , Geoffrey Garner
发明人： Cornelis Den Hollander , Geoffrey Garner
IPC分类号： H04J14/00
CPC分类号： H04Q11/0066 , H04J14/0227 , H04J14/0241 , H04J14/0284 , H04Q2011/0064 , H04Q2011/0084
摘要： A time-slotted optical burst switching system and method therefor can support data transmissions for a constant bit rate (CBR) and at a variable bit rate (VBR) and improves a data transmission method at an edge node and a core node. Accordingly, it is possible to perform a data service for the constant bit rate and for a variable bit rate and to substantially prevent a delay due to a scheduling for a slot assignment at the core node by transmitting a burst control packet before the data burst to be transmitted at the edge node is generated in case of transmitting the data burst at the constant bit rate.

2. 发明申请

US20070025481A1 Time synchronizing method and apparatus based on time stamp 有权
标题翻译：基于时间戳的时间同步方法和装置
公开(公告)号：US20070025481A1
公开(公告)日：2007-02-01
申请号：US11487408
申请日：2006-07-17
申请人： Hyun-surk Ryu , Geoffrey Garner , Fei Feng , Cornelis Den Hollander
发明人： Hyun-surk Ryu , Geoffrey Garner , Fei Feng , Cornelis Den Hollander
IPC分类号： H04L7/00
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。

3. 发明申请

US20060146888A1 Apparatus for adjusting receiving time point of burst data in optical burst switching network and method thereof 有权
公开(公告)号：US20060146888A1
公开(公告)日：2006-07-06
申请号：US11321623
申请日：2005-12-30
申请人： Cornelis Den Hollander , Geoffrey Garner
发明人： Cornelis Den Hollander , Geoffrey Garner
IPC分类号： H04J3/06
CPC分类号： H04J3/0685 , H04J14/0226 , H04J14/0246 , H04L7/0008 , H04L7/0041 , H04L7/0075 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0039 , H04Q2011/0045
摘要： An apparatus and method for adjusting a receiving time point of burst data in an optical burst switching network is provided. The method includes comparing a reference time point of a node with a time slot boundary of the burst data; and adjusting the time slot boundary of the burst data in accordance with the reference time point. The apparatus includes a sync detection section which is configured to detect a difference between a time slot boundary of the burst data and a reference time point; and a sync control section which is configured to control shifting and re-aligning the received burst data with the reference time point according to the difference detected by the sync detection section.

4. 发明申请

US20070014296A1 Clock recovery method and apparatus for constant bit rate (CBR) traffic 审中-公开
标题翻译：用于恒定比特率（CBR）业务的时钟恢复方法和装置
公开(公告)号：US20070014296A1
公开(公告)日：2007-01-18
申请号：US11487461
申请日：2006-07-17
申请人： Hyun-surk Ryu , Geoffrey Garner , Fei Feng , Cornelis Den Hollander
发明人： Hyun-surk Ryu , Geoffrey Garner , Fei Feng , Cornelis Den Hollander
IPC分类号： H04L12/56 , H04L12/28
CPC分类号： H04L49/40 , H04L2012/5674
摘要： Disclosed is a clock recovery method and apparatus for CBR traffic in the packet switching network so as to recover the clock of the CBR traffic upon transmission by inserting a small amount of random packets to the CBR traffic stream which has arrived in a receiver. According to the present inventive concept, the CBR streams are added with the random traffic streams in the packet switching network, so that the clock of the CBR streams upon transmission can be recovered, and jitter and wander according to clock recovery can be reduced.
摘要翻译：公开了一种用于分组交换网络中的CBR业务的时钟恢复方法和装置，以便通过将少量的随机分组插入已经到达接收机的CBR业务流来恢复传输时的CBR业务的时钟。根据本发明构思，CBR流在分组交换网络中与随机流量流相加，从而可以恢复传输时的CBR流的时钟，并且可以减少根据时钟恢复的抖动和漂移。

5. 发明申请

US20060159130A1 Method and apparatus for constant bit rate data transmission in an optical burst switching network 有权
标题翻译：在光突发交换网络中用于恒定比特率数据传输的方法和装置
公开(公告)号：US20060159130A1
公开(公告)日：2006-07-20
申请号：US11333343
申请日：2006-01-18
申请人： Cornelis Den Hollander , Geoffrey Garner
发明人： Cornelis Den Hollander , Geoffrey Garner
IPC分类号： H04J3/06
CPC分类号： H04J3/0664 , H04B10/2507 , H04Q11/0062 , H04Q2011/0079
摘要： A method, core node, ingress edge node, and egress edge node for matching a bit rate of data input into an optical burst switching network with that of data output from the optical burst switching network are provided. The method includes calculating a difference between a frequency of optical data received on a node and a natural frequency of the node; including the calculated difference into control information; and transmitting the control information. The core node includes a calculator to calculate a difference between frequency of optical data and the natural frequency of the optical data; and a controller to add the difference and a difference included in control information, and output the added difference. The ingress edge node includes a data processor; and a controller. The egress edge node includes an ingress edge node clock recovery phase lock loop; a de-mapper; and a storage unit.
摘要翻译：提供了一种方法，核心节点，入口边缘节点和出口边缘节点，用于将输入到光突发交换网络的数据的比特率与从光突发交换网络输出的数据的比特率相匹配。该方法包括计算在节点上接收的光数据的频率与节点的固有频率之间的差; 包括计算出的与控制信息的差异; 并发送控制信息。核心节点包括计算器，用于计算光学数据的频率与光学数据的固有频率之间的差异; 以及控制器，用于添加差异和包含在控制信息中的差异，并输出添加的差异。入口边缘节点包括数据处理器; 和控制器。出口边缘节点包括入口边缘节点时钟恢复锁相环; 一个去映射器和存储单元。

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