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1. 发明授权

US5905723A System for achieving scalable router performance 失效
标题翻译：用于实现可扩展路由器性能的系统
公开(公告)号：US5905723A
公开(公告)日：1999-05-18
申请号：US499872
申请日：1995-07-10
申请人： George Varghese , David R. Oran , Robert Eugene Thomas
发明人： George Varghese , David R. Oran , Robert Eugene Thomas
IPC分类号： H04L12/56 , H04Q11/04 , H04J3/24
CPC分类号： H04L49/107 , H04L45/00 , H04L45/245 , H04L49/1576 , H04L49/25 , H04L49/258 , H04L49/351 , H04L49/606 , H04L49/101 , H04L49/102 , H04L49/30 , H04L49/55 , Y02B60/33
摘要： A network interconnection device having a router connected by a plurality of links to at least one multiport switch is presented. Each of the plurality of links is connected between one port of the router and one port of the multiport switch such that each link represents a separate path between the router and the multiport switch over which data packets may be transferred. Sets of links are defined as hunt groups, which contain multiple instances of a given resource. Each port has a forwarding engine. When a packet arrives at a router port, the forwarding engine checks if the packet destination port belongs to the same hunt group as the packet sending port. If the destination port and the packet sending port belong to the same group, the packet is sent back through the same port through which it arrived without having to pass through the router backplane, thus transferring the packet efficiently.
摘要翻译：提供了具有通过多条链路连接到至少一个多端口交换机的路由器的网络互连设备。多个链路中的每一个连接在路由器的一个端口和多端口交换机的一个端口之间，使得每个链路表示路由器和可以传送数据分组的多端口交换机之间的单独路径。链接集定义为寻线组，其中包含给定资源的多个实例。每个端口都有一个转发引擎。当分组到达路由器端口时，转发引擎检查分组目的端口是否属于与分组发送端口相同的寻线组。如果目的端口和报文发送端口属于同一组，则报文通过相同的端口发回，而不必通过路由器背板，从而有效地传输报文。

2. 发明授权

US09402114B2 System and method for providing randomization in adaptive bitrate streaming environments 有权
标题翻译：在自适应比特率流媒体环境中提供随机化的系统和方法
公开(公告)号：US09402114B2
公开(公告)日：2016-07-26
申请号：US13552212
申请日：2012-07-18
申请人： Joshua B. Gahm , Scott C. Labrozzi , David R. Oran , Ali C. Begen
发明人： Joshua B. Gahm , Scott C. Labrozzi , David R. Oran , Ali C. Begen
IPC分类号： H04N21/845 , H04N21/24 , H04N21/2343
CPC分类号： H04N21/8451 , H04N21/23439 , H04N21/2401 , H04N21/8456
摘要： A method is provided in one example embodiment and includes receiving video data at an adaptive bitrate (ABR) client that includes a buffer; determining whether a buffer level for the buffer is below a target buffer level; applying a random delay for a fetch interval associated with requesting the video data; and requesting a next segment of the video data after the random delay. The random delay can provide for a plurality of fetch times to become decorrelated from each other.
摘要翻译：在一个示例实施例中提供了一种方法，并且包括在包括缓冲器的自适应比特率（ABR）客户端处接收视频数据; 确定缓冲器的缓冲器级别是否低于目标缓冲器级; 对与请求视频数据相关的获取间隔应用随机延迟; 并在随机延迟之后请求视频数据的下一段。随机延迟可以提供多个获取时间以彼此解相关。

3. 发明授权

US09306994B2 Stabilization of adaptive streaming video clients through rate limiting 有权
标题翻译：通过速率限制稳定自适应流视频客户端
公开(公告)号：US09306994B2
公开(公告)日：2016-04-05
申请号：US13489786
申请日：2012-06-06
申请人： Joshua B. Gahm , Saamer Akhshabi , Ali C. Begen , David R. Oran , Biswaranjan Panda , Frederick Baker
发明人： Joshua B. Gahm , Saamer Akhshabi , Ali C. Begen , David R. Oran , Biswaranjan Panda , Frederick Baker
IPC分类号： G06F15/16 , H04L29/06 , H04N21/238 , H04N21/61 , H04N21/6332 , H04N21/6338 , H04N21/6373 , H04N21/845 , H04L12/813 , H04L12/815 , H04L12/819 , H04L12/811 , H04L12/801 , H04L12/823
CPC分类号： H04L65/4084 , H04L47/193 , H04L47/20 , H04L47/215 , H04L47/22 , H04L47/32 , H04L47/38 , H04L65/60 , H04L65/80 , H04N21/23805 , H04N21/6125 , H04N21/6332 , H04N21/6338 , H04N21/6373 , H04N21/8456
摘要： In one embodiment, a method includes identifying a current encoding rate requested by a client device for content received from a content source, setting at a network device a rate limit to limit the rate at which the content is received at the client device based on the current encoding rate, and adjusting the rate limit based on changes in the current encoding rate. The rate limit is set to allow the client device to change the current encoding rate to a next higher available encoding rate.
摘要翻译：在一个实施例中，一种方法包括识别客户端设备对从内容源接收的内容所请求的当前编码速率，在网络设备处设置速率限制，以限制在客户端设备处接收内容的速率，基于当前编码率，并根据当前编码率的变化调整速率限制。速率限制被设置为允许客户端设备将当前编码速率改变到下一较高的可用编码速率。

4. 发明授权

US08843656B2 System and method for preventing overestimation of available bandwidth in adaptive bitrate streaming clients 有权
标题翻译：用于防止在自适应比特率流客户端中高估可用带宽的系统和方法
公开(公告)号：US08843656B2
公开(公告)日：2014-09-23
申请号：US13494633
申请日：2012-06-12
申请人： Joshua B. Gahm , Ali C. Begen , David R. Oran
发明人： Joshua B. Gahm , Ali C. Begen , David R. Oran
IPC分类号： G06F15/16
CPC分类号： H04L47/38 , H04L47/266 , H04L47/30 , H04L65/4084 , H04L65/4092 , H04L65/80
摘要： A method is provided in one example embodiment and includes generating a bandwidth estimation for an adaptive bitrate (ABR) client; evaluating a current state of a buffer of the ABR client; and determining an encoding rate to be used for the ABR client based, at least, on the bandwidth estimation and the current state of the buffer. A fetch interval for the ABR client increases as the buffer becomes more full, while not reaching a level at which the ABR client is consuming data at a same rate at which it is downloading the data.
摘要翻译：在一个示例实施例中提供了一种方法，并且包括为自适应比特率（ABR）客户端生成带宽估计; 评估ABR客户端的缓冲器的当前状态; 以及至少基于所述缓冲器的带宽估计和当前状态来确定要用于所述ABR客户端的编码率。 ABR客户端的提取间隔随着缓冲区变得更加满而增加，而没有达到ABR客户端以与下载数据相同的速率消耗数据的级别。

5. 发明申请

US20130332623A1 SYSTEM AND METHOD FOR PREVENTING OVERESTIMATION OF AVAILABLE BANDWIDTH IN ADAPTIVE BITRATE STREAMING CLIENTS 有权
标题翻译：用于防止自适应双向流行客户中可用带宽过渡的系统和方法
公开(公告)号：US20130332623A1
公开(公告)日：2013-12-12
申请号：US13494633
申请日：2012-06-12
申请人： Joshua B. Gahm , Ali C. Begen , David R. Oran
发明人： Joshua B. Gahm , Ali C. Begen , David R. Oran
IPC分类号： G06F15/16
CPC分类号： H04L47/38 , H04L47/266 , H04L47/30 , H04L65/4084 , H04L65/4092 , H04L65/80
摘要： A method is provided in one example embodiment and includes generating a bandwidth estimation for an adaptive bitrate (ABR) client; evaluating a current state of a buffer of the ABR client; and determining an encoding rate to be used for the ABR client based, at least, on the bandwidth estimation and the current state of the buffer. A fetch interval for the ABR client increases as the buffer becomes more full, while not reaching a level at which the ABR client is consuming data at a same rate at which it is downloading the data.
摘要翻译：在一个示例实施例中提供了一种方法，并且包括为自适应比特率（ABR）客户端生成带宽估计; 评估ABR客户端的缓冲器的当前状态; 以及至少基于所述缓冲器的带宽估计和当前状态来确定要用于所述ABR客户端的编码率。 ABR客户端的提取间隔随着缓冲区变得更加满而增加，而没有达到ABR客户端以与下载数据相同的速率消耗数据的级别。

6. 发明申请

US20130268733A1 CACHE STORAGE OPTIMIZATION IN A CACHE NETWORK 有权
标题翻译：高速缓存中的缓存优化
公开(公告)号：US20130268733A1
公开(公告)日：2013-10-10
申请号：US13443761
申请日：2012-04-10
申请人： Ashok Narayanan , David R. Oran
发明人： Ashok Narayanan , David R. Oran
IPC分类号： G06F12/08
CPC分类号： G06F12/0888 , G06F2212/154 , H04L67/2842 , H04L67/2852
摘要： In one embodiment, a method includes receiving data at a cache node in a network of cache nodes, the cache node located on a data path between a source of the data and a network device requesting the data, and determining if the received data is to be cached at the cache node, wherein determining comprises calculating a cost incurred to retrieve the data. An apparatus and logic are also disclosed.
摘要翻译：在一个实施例中，一种方法包括在高速缓存节点的网络中的高速缓存节点处接收数据，所述高速缓存节点位于数据源和请求数据的网络设备之间的数据路径上，并且确定接收的数据是否为被缓存在缓存节点处，其中确定包括计算检索数据所产生的成本。还公开了一种装置和逻辑。

7. 发明申请

US20130132588A1 METHOD AND APPARATUS FOR PROVIDING SESSION DESCRIPTION FOR A MEDIA SESSION 有权
标题翻译：提供媒体会议讲座的方法和装置
公开(公告)号：US20130132588A1
公开(公告)日：2013-05-23
申请号：US13302108
申请日：2011-11-22
申请人： David R. Oran
发明人： David R. Oran
IPC分类号： G06F15/16
CPC分类号： H04N7/141 , H04L65/608 , H04L67/2804
摘要： In one embodiment, a method includes constructing at a source node, a session description pointer to a session description for a media session, inserting the session description pointer in a packet in a media stream of the media session, and transmitting the packet to a receiver node. The session description pointer is configured for use in obtaining the session description by an intermediate node located between the source node and the receiver node. An apparatus is also disclosed.
摘要翻译：在一个实施例中，一种方法包括在源节点处构建到媒体会话的会话描述的会话描述指针，将会话描述指针插入到媒体会话的媒体流中的分组中，以及将该分组发送到接收机节点。会话描述指针被配置为用于通过位于源节点和接收器节点之间的中间节点来获得会话描述。还公开了一种装置。

8. 发明授权

US07826348B2 Multicast fast reroute 有权
标题翻译：组播快速重路由
公开(公告)号：US07826348B2
公开(公告)日：2010-11-02
申请号：US11789927
申请日：2007-04-26
申请人： Dino Farinacci , David R. Oran , John M. Zwiebel
发明人： Dino Farinacci , David R. Oran , John M. Zwiebel
IPC分类号： H04L12/28
CPC分类号： H04L45/16 , H04L12/185 , H04L12/1877 , H04L45/02 , H04L45/22 , H04L45/28
摘要： A method and apparatus for fast reroute of multicast data are disclosed. In one embodiment, a method includes transmitting a multicast join message from a receiver towards a source on a primary path and transmitting an alternate multicast join message from the receiver towards the source on a backup path. Data packets are then received from the primary and backup paths. The method further includes operating in a first mode wherein the data packets received from the primary path are accepted and the data packets received from the backup path are dropped, and switching to a second mode wherein the data packets received from the backup path are accepted, upon detecting a failure in the primary path.
摘要翻译：公开了一种快速重路由多播数据的方法和装置。在一个实施例中，一种方法包括从接收器向主路径上的源发送多播加入消息，并且在备用路径上从接收器向源发送备用组播加入消息。然后从主路径和备份路径接收数据包。该方法还包括以第一模式操作，其中从主路径接收的数据分组被接受，并且从备用路径接收到的数据分组被丢弃，并且切换到第二模式，其中从备用路径接收的数据分组被接受，在检测到主路径中的故障时。

9. 发明申请

US20090052457A1 METHOD AND APPARATUS FOR AUTOMATIC INTER-DOMAIN ROUTING OF CALLS 有权
标题翻译：用于自动地域通路的方法和装置
公开(公告)号：US20090052457A1
公开(公告)日：2009-02-26
申请号：US12258590
申请日：2008-10-27
申请人： Hussein Farouk Salama , David R. Oran , Dhaval N. Shah
发明人： Hussein Farouk Salama , David R. Oran , Dhaval N. Shah
IPC分类号： H04L12/56
CPC分类号： H04L65/1009 , H04L12/2856 , H04L12/2898 , H04L29/06 , H04L29/06027 , H04L45/02 , H04L45/04 , H04L65/1006 , H04M7/1285
摘要： A method and apparatus for inter-domain routing of calls in a network, where the network represents a first wide area network. A routing node of the network advertises its access to a range of addresses in a second wide area network and a cost for access to the range of addresses to all adjacent nodes in the network. Each of the adjacent nodes inserts an entry in its own routing table associating access to the range of addresses in the second wide area network with the network address of the routing node and the cost for access. Each adjacent node then modifies the cost for access by adding its own cost and advertises its access to the range of addresses in the second wide area network and the modified cost for access to all of its adjacent nodes. When a call addressed to a destination address in the range of address in the second wide area network is received at each node of the network, then the node searches for the entry in its routing table corresponding to the range of addresses in the second wide area network having the lowest cost for access and connects the call to the adjacent node associated with the entry having the lowest cost. The routing node can also advertise one or more protocol types which it can support, where the protocol types are associated with the routing node in the routing table in each adjacent node and a call having a given protocol type is also routed at each node of the network based upon its protocol type.
摘要翻译：一种用于网络中的呼叫的域间路由的方法和装置，其中网络表示第一广域网。网络的路由节点通告其对第二广域网中的地址范围的访问，以及用于访问到网络中所有相邻节点的地址范围的成本。每个相邻节点在其自己的路由表中插入条目，将访问与第二广域网中的地址范围相关联，并将路由节点的网络地址和访问成本相关联。然后，每个相邻节点通过添加自己的成本来修改访问成本，并通告其对第二广域网中的地址范围的访问以及用于访问其所有相邻节点的修改成本。当在网络的每个节点处接收到寻址到第二广域网中的地址范围内的目的地地址的呼叫时，节点在其路由表中搜索对应于第二广域中的地址范围的条目具有最低访问成本的网络，并将呼叫连接到与具有最低成本的条目相关联的相邻节点。路由节点还可以通告其可以支持的一种或多种协议类型，其中协议类型与每个相邻节点中的路由表中的路由节点相关联，并且具有给定协议类型的呼叫也在路由节点的每个节点处路由网络基于其协议类型。

10. 发明申请

US20080192839A1 FAST CHANNEL CHANGE ON A BANDWIDTH CONSTRAINED NETWORK 有权
标题翻译：一个带宽约束网络的快速通道更改
公开(公告)号：US20080192839A1
公开(公告)日：2008-08-14
申请号：US11674093
申请日：2007-02-12
申请人： Joshua Bernard Gahm , David R. Oran , Kapil Sharma
发明人： Joshua Bernard Gahm , David R. Oran , Kapil Sharma
IPC分类号： H04N5/50
CPC分类号： H04N19/115 , H04N19/159 , H04N19/164 , H04N19/188 , H04N19/61 , H04N21/23418 , H04N21/238 , H04N21/23805 , H04N21/2402 , H04N21/4384 , H04N21/6405 , H04N21/6408
摘要： In one embodiment, a buffering server transfers a dynamic burst transfer of data encoded using an inter-coded compression technique. The dynamic burst transfer is timed so that an initial transfer rate is reduced to a remaining transfer rate at the same time or before a decoding endpoint joins a corresponding data stream. The decoding endpoint merges the video stream and the dynamic burst transfer to decode and quickly reconstruct a displayable video frame.
摘要翻译：在一个实施例中，缓冲服务器传送使用帧间编码压缩技术编码的数据的动态突发传送。动态突发传输被定时，使得初始传输速率在同一时间或在解码端点加入相应的数据流之前降低到剩余的传输速率。解码端点将视频流和动态突发传输合并以解码并快速重构可显示的视频帧。

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