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1.发明授权Method and apparatus to reduce jitter and end-to-end delay for multimedia data signalling 失效用于减少多媒体数据信令的抖动和端到端延迟的方法和装置
公开(公告)号：US5996018A
公开(公告)日：1999-11-30
申请号：US758071
申请日：1996-11-27
CPC分类号： H04J3/0632 , G06F13/387
摘要： A method and an apparatus for reducing the jitter and end-to-end delay on lines of a packet switching network conveying voice or video digitalized data for one or more connections between a local source and a remote source at a constant bit rate.The method and apparatus of the invention are for use in a voice or video processor of a voice or video processing server of a network node; the method and the apparatus provide a way of controlling the remote traffic rate from the remote source before accessing the processor without using an external clocking such as the network clock.The solution proposed by the invention consists in buffering the remote and local traffics to adapt the remote traffic rate to the local traffic rate, which is supposed having a limited jitter, while sequencing of the access of the buffered data to the processor.
摘要翻译： 一种用于减少分组交换网络的线路上的抖动和端到端延迟的方法和装置，其以恒定的比特率传送本地源和远程源之间的一个或多个连接的语音或视频数字化数据。 本发明的方法和装置用于网络节点的语音或视频处理服务器的语音或视频处理器; 该方法和装置提供了在访问处理器之前控制来自远程源的远程业务速率的方式，而不使用诸如网络时钟的外部时钟。 本发明提出的解决方案在于缓存远程和本地业务，以使远程业务速率适应本地业务速率，其被认为具有有限的抖动，同时缓冲数据到处理器的访问排序。
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公开(公告)号：US06912224B1
公开(公告)日：2005-06-28
申请号：US09021707
申请日：1998-02-10
申请人： Maurice Duault , Bernard Pucci , Serge Leroy , Gerard Richter , Francois Kermarec , Aline Fichou
发明人： Maurice Duault , Bernard Pucci , Serge Leroy , Gerard Richter , Francois Kermarec , Aline Fichou
CPC分类号： H04L49/90
摘要： An adaptive apparatus and method for managing a playout buffer (POB) in an edge node of a packet-based data communications network, such as an ATM network, in order to reduce the end-to-end communication delay introduced thereby and to allow the POB filling level to be corrected in the event of clock speed differences. A monitoring mechanism determines if the minimum filling level of the playout buffer over a time period whereby the average filling level of the playout buffer is reduced according to the minimum filling level of the playout buffer over the time period.
摘要翻译： 一种用于管理诸如ATM网络的基于分组的数据通信网络的边缘节点中的播出缓冲器（POB）的自适应装置和方法，以便减少由此引入的端到端通信延迟并允许 在时钟速度差异的情况下要纠正POB填充级别。 监视机构确定在一段时间内播放缓冲器的最小填充水平是否根据播放缓冲器在该时间段内的最小填充水平而减小播放缓冲器的平均填充水平。
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3.发明授权Flow control for very bursty connections in high speed cell switching networks 失效用于高速小区交换网络中非常突发连接的流控制
公开(公告)号：US06072773A
公开(公告)日：2000-06-06
申请号：US898057
申请日：1997-07-22
IPC分类号： H04L12/54 , H04L12/70 , H04L12/913 , H04L12/927 , H04Q11/04 , G08C15/00
CPC分类号： H04L12/5695 , H04L47/724 , H04L47/805 , H04Q11/0478 , H04L2012/5614 , H04L2012/5636
摘要： In high speed cell switching networks, a Call Admission Control (CAC) procedure is performed on each connection according to a specified Traffic Descriptor. A mandatory parameter of the Traffic Descriptor is the Peak Cell Rate (PCR), associated with a Cell Delay Variation Tolerance (CDVT). Connections which specify a high CDVT value may potentially send into the network bursts of cells at a rate much higher than the declared Peak Cell Rate, which may lead to congestion in cell buffers of intermediate network nodes. Guaranteeing the Quality of Service (QoS) for such connections may require the reservation of a high amount of resources in the network, leading to poor utilization of those resources. A Call Admission Control procedure, associated with an Usage Parameter Control/Network Parameter Control mechanism, provides:accepting not bursty connections and guaranteeing the Quality of Service requested at connection setup,accepting very bursty connections and guaranteeing a minimal Quality of Service rather than simply rejecting them,protecting the network from potentially too bursty traffic,determining a bandwidth reservation method based on a Mean Burst Length,for every connection, minimizing the bandwidth reservation while satisfying the required Quality of Service.
摘要翻译： 在高速小区交换网络中，根据指定的业务描述符，在每个连接上执行呼叫接纳控制（CAC）过程。 流量描述符的强制参数是峰值信元速率（PCR），与信元延迟变化容差（CDVT）相关联。 指定高CDVT值的连接可能潜在地以比所声明的峰值信元速率高得多的速率发送到信元的网络脉冲串，这可能导致中间网络节点的信元缓冲器中的拥塞。 确保这种连接的服务质量（QoS）可能需要在网络中预留大量的资源，导致这些资源的利用率较低。 与使用参数控制/网络参数控制机制相关联的呼叫接纳控制程序提供：不接受突发连接并保证在连接建立时所请求的服务质量，接受非常突发的连接并保证最低服务质量，而不是简单地拒绝 他们，保护网络免受潜在的突发性流量，为每个连接确定基于平均突发长度的带宽预留方法，使带宽预留最小化，同时满足所需的服务质量。
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公开(公告)号：US5235700A
公开(公告)日：1993-08-10
申请号：US641833
申请日：1991-01-16
申请人： Haissam Alaiwan , Jean Calvignac , Jacques-Louis Combes , Andre Pauporte , Claude Basso , Francois Kermarec
发明人： Haissam Alaiwan , Jean Calvignac , Jacques-Louis Combes , Andre Pauporte , Claude Basso , Francois Kermarec
CPC分类号： G06F11/2028 , G06F11/1658 , G06F11/2043
摘要： A device which switches data processing from an active processor, about to fail, to a back-up processor includes a memory change detector which captures memory changes in the memory of the active processor and a mirroring control circuit which causes the memory changes when committed by establishing recovery point signals generated by the active processor to be dumped into the memory of the back-up processor so that the back-up processor resumes operation of the active processor from the last established recovery point.
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公开(公告)号：US06370610B1
公开(公告)日：2002-04-09
申请号：US08421338
申请日：1995-04-13
IPC分类号： G06F926
CPC分类号： H04L49/309 , G06F12/0292 , H04L49/30 , H04L49/3081 , H04Q11/0478
摘要： The swapping function of input values to output values is performed through a pseudo content addressable memory which provides output values corresponding to a number E of n-bit input values, with E=2p−1. The pseudo content addressable memory is made of a plurality of cascaded random address memories 20 having at least a 2d addressing capability, with d higher than p. A control logic circuit is provided to store into each random access memory p-bits pointers, with each pointer being different from the others and randomly assigned to an input value. In order to find an output value corresponding to an input value, the control logic circuit sequentially address and reads the cascaded random access memories, the first memory being addressed with a part including a number n1 of bits of the input value, and each one of the next memories being addressed with the pointer read from the preceding memory concatenated with another part ni of bits of the input value, with ni equal to or lower than n−n1. The output value is found as a result of the addressing of the last memory.
摘要翻译： 通过伪内容可寻址存储器执行输入值到输出值的交换功能，该内容可寻址存储器提供对应于n位输入值的数量E的输出值，其中E = 2p-1。 伪内容可寻址存储器由具有至少2d寻址能力的多个级联随机地址存储器20制成，d高于p。 提供控制逻辑电路以存储到每个随机存取存储器p位指针中，其中每个指针与其他指针不同，并随机分配给输入值。 为了找到与输入值对应的输出值，控制逻辑电路顺序地对级联随机存取存储器进行寻址和读取，第一存储器以包含输入值的位数n1的部分寻址，并且每个 下一个存储器是用从等于或小于n-n1的ni输入值的另一部分ni连接的先前存储器读取的指针来寻址的。 作为最后一个存储器寻址的结果，找到输出值。
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6.发明授权Method and an apparatus for shaping the output traffic in a fixed length cell switching network node 失效用于整形固定长度小区交换网络节点中的输出业务的方法和装置
公开(公告)号：US5818815A
公开(公告)日：1998-10-06
申请号：US530686
申请日：1995-09-19
申请人： Regis Carpentier , Rene Glaise , Francois Kermarec , Thanh Pham
发明人： Regis Carpentier , Rene Glaise , Francois Kermarec , Thanh Pham
CPC分类号： H04L12/5602 , H04Q11/0478 , H04L2012/5679 , H04L2012/568
摘要： A method and an apparatus for shaping the output traffic in the transmit part of a network node adapter. The network node supports fixed length cell switching user information traffic between a source unit and a destination unit. The method and apparatus use two lookup tables called an active and a standby calendar per output line. Each entry in the calendars represents the position of one cell in the output cell stream. Three parameters tables are used to store the information on user traffic in the descending order of the user bandwidth share negotiated at traffic establishment time for the calendars. The active calendar is continuously read by a transmit device and the corresponding cells are sent onto the output line. Under control of a control device, a placement device places entries in the standby calendar reserved as changes occur in the traffic. Once filled up, the standby calendar is swapped to the active calendar and is read by the transmit device.
摘要翻译： 一种用于对网络节点适配器的发送部分中的输出业务进行整形的方法和装置。 网络节点在源单元和目的地单元之间支持固定长度的小区交换用户信息业务。 该方法和设备使用两个查询表，每个输出行称为活动和备用日历。 日历中的每个条目表示输出单元格流中一个单元格的位置。 三个参数表用于按照日历在交通建立时间协商的用户带宽份额的降序存储用户流量信息。 活动日历由发送设备连续读取，相应的小区被发送到输出线路上。 在控制设备的控制下，放置设备将备用日历中的条目放置在流量中发生更改时保留。 一旦装满，备用日历将交换到活动日历，并由发送设备读取。
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