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    • 4. 发明申请
    • Method for encoding a multimedia content
    • 多媒体内容编码方法
    • US20060087970A1
    • 2006-04-27
    • US11256178
    • 2005-10-24
    • Tim VermeirenEric BorghsSig Badt
    • Tim VermeirenEric BorghsSig Badt
    • H04L12/26
    • H04N21/2662H04N21/631H04N21/6587
    • The present invention relates to a method for encoding a multimedia content, and comprising the steps of: encoding the multimedia content into hierarchical elementary streams, parsing the elementary streams into data packets for further transmission through a network towards a decoding unit, receiving a request whereby the decoding unit requests delivery of at least one required elementary stream. A method according to the invention further comprises the steps of: discriminating within the data packets between first data packets that compose the at least one required elementary stream, and second data packets that do not, assigning one first network priority to the first data packets, and assigning at least one second network priority, lower than the first network priority, to the second data packets, transmitting the first data packets and the second data packets towards the decoding unit. The present invention also relates to an encoding unit implementing a method according to the invention.
    • 本发明涉及一种多媒体内容编码方法,包括以下步骤:将多媒体内容编码为分级基本流,将基本流解析为数据分组,以便通过网络向解码单元进一步传输,接收请求, 解码单元请求递送至少一个所需的基本流。 根据本发明的方法还包括以下步骤:在构成至少一个所需基本流的第一数据分组之间的数据分组内识别不给第一数据分组赋予一个第一网络优先级的第二数据分组, 以及将低于第一网络优先级的至少一个第二网络优先级分配给第二数据分组,向解码单元发送第一数据分组和第二数据分组。 本发明还涉及实现根据本发明的方法的编码单元。
    • 5. 发明申请
    • Control of multicast traffic
    • 多播流量控制
    • US20050232293A1
    • 2005-10-20
    • US11100601
    • 2005-04-07
    • Michiel PeltSorin MicleaEric Borghs
    • Michiel PeltSorin MicleaEric Borghs
    • H04L12/18H04L12/28H04L12/56
    • H04L12/185
    • The present invention relates to a multicast traffic control unit (21) for use in a data communication system (1) operable to transmit multicast traffic, and adapted: to receive membership reports (41 to 45) from at least one station (11 to 13), whereby memberships of multicast groups are notified, to report at least one membership (41, 44) out of said memberships to a multicast router (31) of the data communication system. A multicast traffic control unit according to the invention is further adapted, before reporting the at least one membership to the multicast router: to estimate a total amount (X) of multicast traffic which the multicast router would supposedly forward towards the at least one station on account of the at least one membership, to select the at least one membership such that the so-estimated total amount does not exceed a configurable threshold (Xmax).
    • 本发明涉及一种在数据通信系统(1)中使用的组播业务控制单元(21),该数据通信系统(1)可操作以发送组播业务,并适于:从至少一个站(11至13)接收成员资格报告(41至45) ),从而通知多播组的成员关系,以将所述成员资格中的至少一个成员资格(41,44)报告给数据通信系统的多播路由器(31)。 根据本发明的组播业务控制单元进一步适用于在向组播路由器报告至少一个成员资格之前:估计组播路由器将推测向至少一个站的组播流量的总量(X) 选择所述至少一个成员资格,以选择所述至少一个成员资格,使得所估计的总量不超过可配置的阈值(Xmax)。
    • 6. 发明申请
    • Network unit for exchanging a signal
    • 用于交换信号的网络单元
    • US20060149839A1
    • 2006-07-06
    • US11302256
    • 2005-12-14
    • Tim VermeirenEric Borghs
    • Tim VermeirenEric Borghs
    • G06F15/173
    • H04L69/16H04L69/03H04L69/166H04L69/32
    • Network units (1) for exchanging signals (20-70) comprising information (50) at layers (500) higher than internet protocol layers (300) comprise detector systems (2,3) arranged to detect fields of the information (50). To improve the detections of a status of priority, of fragmentation and/or of aggregation, the signal (20-70) is provided with further information (60) at further layers (600) higher than the layers (500) and the detector systems (2,3) are arranged to, in response to detections of the fields of the information (50), detect further fields of the further information (60). The further layers (600) comprise codec independent layers and yet further layers (700) higher than the further layers (600) comprises codec dependent layers. The layers (500) comprise real time protocol layers, the further layers (600) comprise generic real time protocol payload formats for transport abstractions and the yet further layers (700) comprise real time protocol payload formats for specific codec's. The further fields of the further information (60) comprise priority fields (611-d), fragmentation fields (611-b-c), aggregation fields (611-a), aggregation count fields (612) and aggregation header fields (613-618).
    • 包括层(500)上的信息(50)的信号(20-70)的网络单元(1)包括检测器系统(2,3),检测器系统(2,3)被配置为检测信息的区域(50)。 为了改进对优先级,碎片状态和/或聚合状态的检测,信号(20-70)在高于层(500)和检测器系统的更多层(600)处被提供有更多信息(60) (2,3)被布置为响应于所述信息(50)的字段的检测,检测所述另外的信息(60)的其他字段。 另外的层(600)包括与编解码器无关的层,并且还高于其它层(600)的另外层(700)包括编解码器依赖层。 层(500)包括实时协议层,其它层(600)包括用于传输抽象的通用实时协议有效载荷格式,而另外的层(700)包括用于特定编解码器的实时协议有效载荷格式。 进一步的信息(60)的其他字段包括优先级字段(611 -d),分段字段(611 -bc),聚合字段(611-a),聚合计数字段(612)和聚合报头字段(613-618) 。
    • 7. 发明申请
    • Flow-aware ethernet digital subscriber line access multiplexer DSLAM
    • 流量感知以太网数字用户线接入复用器DSLAM
    • US20060114896A1
    • 2006-06-01
    • US11265247
    • 2005-11-03
    • Michaël BeckEric BorghsPaul CautereelsHans Maurice DequekerTim Gyselings
    • Michaël BeckEric BorghsPaul CautereelsHans Maurice DequekerTim Gyselings
    • H04L12/66
    • H04L47/2441H04L47/10H04L47/2408
    • An access node (1) that is preferably a Flow-Aware Ethernet DSLAM adapted to transmit Ethernet data frames between subscribers (2) and an aggregation network (3). The access node comprises a first memory (4) for storing classification rules and a second memory (6) for storing flow rules. These rules are applied by a classification agent (5) and by a service agent (7) to information extracted from incoming data frames in order to infer flow awareness information of outgoing frames corresponding to these incoming data frame. In this way, the subscriber access network evolves to a multi-service architecture by replacing ATM with Ethernet for cost reasons. The concept of “flow awareness” is applied to the present access node. With respect to known tunnel-based Ethernet DSLAMs, the present access node removes all dependency on correct encapsulation or labeling at the customer side and at the service provider side. By removing the need for tunnels, traffic may be inserted at any intermediate point, as may be required for multicast.
    • 接入节点(1),其优选地是适用于在订户(2)和聚合网络(3)之间传送以太网数据帧的流感知以太网DSLAM。 接入节点包括用于存储分类规则的第一存储器(4)和用于存储流规则的第二存储器(6)。 这些规则由分类代理(5)和服务代理(7)应用于从输入数据帧提取的信息,以便推断与这些输入数据帧相对应的输出帧的流量感知信息。 以这种方式,由于成本原因,用户接入网络通过用以太网替代ATM来演进到多业务架构。 “流量意识”的概念被应用于当前的接入节点。 对于已知的基于隧道的以太网DSLAM,本接入节点消除了在客户侧和服务提供方侧对正确封装或标签的所有依赖。 通过消除对隧道的需要,可以在任何中间点插入业务,这可能是组播所需要的。