会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • NACK SUPPRESSION FOR MULTICAST PROTOCOLS IN MOSTLY ONE-WAY NETWORKS
    • 在多个单一网络中的多播协议的NACK抑制
    • WO02073882A3
    • 2003-05-08
    • PCT/IB0200724
    • 2002-03-12
    • IBMIBM SCHWEIZSATRAN JULIANGERSHINSKY GIDONROCHWERGER BENNY
    • SATRAN JULIANGERSHINSKY GIDONROCHWERGER BENNY
    • H04L1/18H04L12/18
    • H04L1/1854H04L12/1868H04L12/1886
    • In a multicasting system (18) content is multicast from a sender (10) to a plurality of receivers over a data network. Each receiver independently determines whether it is missing elements or packets of the content. Receivers having missing content each initiate a random timer (20, 22, 24). The receiver having the shortest random interval unicasts a negative acknowledgment to the sender (10), which immediately multicasts the negative acknowledgment to the other receivers. All other receivers having the same missing packet thereupon suppress their own negative acknowledgments as to that packet. A repair transmission is then multicast by the sender to all receivers. The random intervals have upper and lower bounds according to the round trip transmission time and the size of the largest missing data element.
    • 在多播系统(18)中,内容是通过数据网络从发送器(10)多播到多个接收器。 每个接收器独立地确定是否丢失了内容的元素或数据包。 丢失内容的接收者各自发起随机定时器(20,22,24)。 具有最短随机间隔的接收机向发送方(10)单播否定确认,其立即将否定确认多播到其他接收机。 具有相同丢失数据包的所有其他接收器随后抑制了对该数据包的否定确认。 然后,修复传输由发送者多播到所有接收者。 随机间隔具有根据往返传输时间和最大丢失数据元素的大小的上限和下限。
    • 3. 发明申请
    • DISTRIBUTED MULTICAST CACHING TECHNIQUE
    • 分布式多媒体缓存技术
    • WO02060127A3
    • 2003-02-20
    • PCT/IB0200208
    • 2002-01-24
    • IBMIBM SCHWEIZSATRAN JULIANGERSHINSKY GIDON
    • SATRAN JULIANGERSHINSKY GIDON
    • G06F12/00G06F13/00H04L12/18H04L12/56H04L29/08G06F17/30H04L29/06
    • H04L12/185H04L12/1859H04L67/2842H04L67/2885H04L69/329
    • A catching arrangement for the content of multicast transmission across a data network utilizes a first cache which receives content from one or more content providers. The first cache forms the root of a multilevel hierarchical tree. In accordance with configuration parameters, the first cache transmits the group directory to a plurality of subsidiary caches. The subsidiary caches may reorganize the group directory, and relay it to a lower level of subsidiary caches. The process is recursive, until a multicast group of end-user client is reached. Requests for content by the end-user clients are received by the lowest level cache, and forwarded as necessary to higher levels in the hierarchy. The content is then returned to the requestors. Various levels of caches retain the group directory and content according to configuration options, which can be adaptive to changing conditions such as demand, loading, and the like.
    • 跨越数据网络的多播传输的内容的捕获布置利用从一个或多个内容提供商接收内容的第一缓存。 第一个缓存形成多级分层树的根。 根据配置参数,第一缓存将组目录发送到多个辅助高速缓存。 辅助高速缓存可以重组组目录,并将其转发到较低级别的子缓存。 该过程是递归的,直到达到最终用户客户端的多播组。 最终用户客户端对内容的请求由最低级缓存接收,并根据需要转发到层次结构中的较高级别。 然后将内容返回给请求者。 各种级别的缓存根据配置选项保留组目录和内容,配置选项可以适应诸如需求,加载等的变化条件。