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公开(公告)号:US08144719B2
公开(公告)日:2012-03-27
申请号:US11258309
申请日:2005-10-25
CPC分类号: H04L49/254 , H04L47/50 , H04L47/60 , H04L49/90
摘要: A system includes multiple input ports that forward received data (e.g., data packets) to each of multiple queues. Data received at the input ports of the system can be somewhat random or “bursty” at times. That is, the input ports can receive data at a variable bit rate or unspecified bit rate from an internal system source or an external source such as an FTP (File Transfer Protocol) server or SCSI disk array. The queues output data at a constant bit rate. A two-dimensional scheduler associated with the system forces random inbound server traffic from the input ports to adhere to a QoS (Quality of Service) agreement such that the random nature of the inbound traffic does not negatively affect the deterministic guarantees of existing server traffic output from the queues. In other words, techniques herein ensure adherence to QoS requirements among the data flows, without overflowing the queues.
摘要翻译: 系统包括将接收的数据(例如,数据分组)转发到多个队列中的每一个的多个输入端口。 在系统的输入端口处接收的数据有时可能是随机的或“突发的”。 也就是说,输入端口可以从内部系统源或外部源(例如FTP(文件传输协议)服务器或SCSI磁盘阵列)以可变比特率或未指定比特率接收数据。 队列以恒定的比特率输出数据。 与系统相关联的二维调度器强制来自输入端口的随机入站服务器流量,以遵守QoS(服务质量)协议,使得入站流量的随机性质不会对现有服务器流量输出的确定性保证产生负面影响 从排队。 换句话说,这里的技术确保在数据流之间遵守QoS要求,而不会使队列溢出。
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公开(公告)号:US08862783B2
公开(公告)日:2014-10-14
申请号:US11258524
申请日:2005-10-25
IPC分类号: G06F15/16 , G06F15/173 , G06F13/28 , H04L29/08 , H04L12/861 , G06F9/48
CPC分类号: H04L67/06 , G06F9/4843 , H04L49/90 , H04L67/1097
摘要: Via use of a shared data bus, a processor system offloads processing tasks. For example, a processor system communicates over a respective data bus with a data communication controller. After notifying the data communication controller of a particular block of data to retrieve, the processor system relinquishes control of the respective data bus so that the data communication controller can control the data bus and store a block of data in a specified memory location using direct memory access techniques. Upon receiving a notification of completion of storing the data block by the data communication controller, the processor system regains control of the respective data bus and notifies a data forwarding circuit to: i) partition the block of data into data packets, ii) apply respective headers to the data packets based on the header information received from the processor system, and iii) forward the data packets to the respective destination.
摘要翻译: 通过使用共享数据总线,处理器系统卸载处理任务。 例如,处理器系统通过相应的数据总线与数据通信控制器进行通信。 在通知数据通信控制器的特定数据块之后,处理器系统放弃相应数据总线的控制,使得数据通信控制器可以控制数据总线,并使用直接存储器将数据块存储在指定的存储器位置 访问技术 在接收到由数据通信控制器存储数据块的完成通知之后,处理器系统重新获取相应数据总线的控制,并通知数据转发电路:i)将数据块分成数据包,ii)分别应用 基于从处理器系统接收的报头信息到数据分组的报头,以及iii)将数据分组转发到相应的目的地。
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公开(公告)号:US08966103B2
公开(公告)日:2015-02-24
申请号:US11962845
申请日:2007-12-21
IPC分类号: G06F15/16 , H04N21/6587 , H04N5/783 , H04N21/2343 , H04N21/2387 , H04N21/242 , H04N21/8547 , H04N21/44
CPC分类号: H04N21/6587 , H04N5/783 , H04N21/2343 , H04N21/2387 , H04N21/242 , H04N21/44004 , H04N21/44016 , H04N21/8547
摘要: A method of processing time-based content includes streaming the time-based content to a receiving device in a normal mode, evaluating a numerical difference between a program clock reference timestamp and a decode timestamp in the content at a transition out of said normal mode, streaming the content to the receiving device in a trick play mode, and altering the content during the trick play mode such that a numerical difference between the timestamps at a transition back into the normal mode is substantially equal to the numerical difference between the timestamps at the transition out of said normal mode.
摘要翻译: 一种处理基于时间的内容的方法包括以正常模式将基于时间的内容流式传送到接收装置,评估在所述正常模式之外转换的内容中的节目时钟参考时间戳和解码时间戳之间的数值差异, 以特技播放模式将内容流传送到接收设备,并且在特技播放模式期间改变内容,使得在转换回正常模式之间的时间戳之间的数值差异基本上等于在时间戳 转换出正常模式。
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公开(公告)号:US20090164652A1
公开(公告)日:2009-06-25
申请号:US11962845
申请日:2007-12-21
IPC分类号: G06F15/16
CPC分类号: H04N21/6587 , H04N5/783 , H04N21/2343 , H04N21/2387 , H04N21/242 , H04N21/44004 , H04N21/44016 , H04N21/8547
摘要: A method of processing time-based content includes streaming the time-based content to a receiving device in a normal mode, evaluating a numerical difference between a program clock reference timestamp and a decode timestamp in the content at a transition out of said normal mode, streaming the content to the receiving device in a trick play mode, and altering the content during the trick play mode such that a numerical difference between the timestamps at a transition back into the normal mode is substantially equal to the numerical difference between the timestamps at the transition out of said normal mode.
摘要翻译: 一种处理基于时间的内容的方法包括以正常模式将基于时间的内容流式传送到接收装置,评估在所述正常模式之外转换的内容中的节目时钟参考时间戳和解码时间戳之间的数值差异, 以特技播放模式将内容流传送到接收设备,并且在特技播放模式期间改变内容,使得在转换回正常模式之间的时间戳之间的数值差异基本上等于在时间戳 转换出正常模式。
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