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1. 发明授权

US5822304A Scanning for active ATM virtual channel/virtual path identifiers 失效
标题翻译：扫描活动的ATM虚拟通道/虚拟路径标识符
公开(公告)号：US5822304A
公开(公告)日：1998-10-13
申请号：US620774
申请日：1996-03-22
申请人： Richard J. Brody , David Romano
发明人： Richard J. Brody , David Romano
IPC分类号： H04L12/56 , H04Q11/04 , H04J3/14
CPC分类号： H04Q11/0478 , H04L2012/5628
摘要： An instrument and a method for identifying active channels in a communications system, especially a system operating according to the asynchronous transfer mode (ATM) protocol in which data cells are associated with virtual channels (VCs) and virtual paths (VPs). The instrument includes an ATM module with a VP/VC filter that permits capture of only those ATM cells corresponding to any selected set of VCs for a particular VP. The module also includes a processor that executes software that controls the VP/VC filter to scan through VP/VCs using a combination of slow and fast scan sequences such that channels with heavy traffic are identified quickly and channels with low bandwidth traffic are also identified, although not necessarily as quickly. To identify active VCs on a particular VP, the VP/VC filter is initially set to capture cells on all channels; as active channels are identified, those channels are disabled in the filter.
摘要翻译：一种用于识别通信系统中的活动信道的仪器和方法，特别是根据异步传输模式（ATM）协议操作的系统，其中数据信元与虚拟信道（VC）和虚拟路径（VP）相关联。该仪器包括具有VP / VC滤波器的ATM模块，其允许仅捕获与特定VP的任何选定的VC集合对应的那些ATM信元。该模块还包括处理器，其执行控制VP / VC滤波器的软件的处理器，以使用慢扫描序列和快速扫描序列的组合来扫描VP / VC，使得识别出具有大流量的信道并且还识别具有低带宽业务的信道，虽然不一定这么快。为了识别特定VP上的活动VC，VP / VC滤波器最初设置为捕获所有通道上的单元; 当有源通道被识别时，滤波器中的那些通道被禁用。

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