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
    • 81. 发明授权
    • Apparatus for and method of measuring communication performance
    • 通信性能测量仪器及测量方法
    • US06757255B1
    • 2004-06-29
    • US09361249
    • 1999-07-27
    • Takeshi AokiShinji KikuchiEiichi TakahashiKen YokoyamaTsuneo KatsuyamaTetsuya Okano
    • Takeshi AokiShinji KikuchiEiichi TakahashiKen YokoyamaTsuneo KatsuyamaTetsuya Okano
    • H04L100
    • H04L1/24H04L1/187H04L29/06H04L69/16H04L69/163H04L69/165
    • A TCP communications performance measuring device 2 obtains an effective bandwidth (a transfer speed) representing performance in TCP communications, wherein performance indexes or both of a round trip time and a maximum segment size which are obtained based on TCP communications variable-length packets transmitted and received pursuant to a TCP (Transmission Control Protocol) defined as protocol of a transport layer of the OSI Reference model, and any one of an average congestion window size, a packet discard rate and a packet discard event rate. The measuring device 2 therefore includes a packet monitoring unit, a performance index detecting unit 22, a session management unit 23, a session management table 24 and a performance calculating unit 25. The measuring device 2 is capable of measuring the performance in the TCP communications on a communications route of a network without specially transmitting the multiplicity of measurement-oriented packets to the network.
    • TCP通信性能测量装置2获得表示TCP通信中的性能的有效带宽(传送速度),其中基于TCP通信可变长度分组所发送的性能指标或往返行程时间和最大段大小两者,以及 根据定义为OSI参考模型的传输层的协议的TCP(传输控制协议)接收的平均拥塞窗口大小,分组丢弃率和分组丢弃事件速率中的任何一个。 因此,测量装置2包括分组监视单元,性能指标检测单元22,会话管理单元23,会话管理表24和性能计算单元25.测量设备2能够测量TCP通信中的性能 在网络的通信路由上,没有向网络特别发送多个面向测量的分组。
    • 82. 发明授权
    • Communications network control system
    • 通信网络控制系统
    • US06625147B1
    • 2003-09-23
    • US09390651
    • 1999-09-07
    • Ken YokoyamaTakeshi AokiEiichi TakahashiShinji KikuchiTsuneo Katsuyama
    • Ken YokoyamaTakeshi AokiEiichi TakahashiShinji KikuchiTsuneo Katsuyama
    • H04L1228
    • H04L41/00H04L63/0435
    • A communications network control system includes a packet judging circuit 412 for judging whether a variable-length packet inputted via a network 12 is a control packet CPKT self-addressed and containing control information for network control, or a transfer packet TPKT that should be transferred to other addresses, and a control information management circuit 512 for receiving the control packet judged to be the control packet by the judging circuit via the network, and managing and processing the control information, based on the received control packet. This system further includes a routing table management circuit 413 for storing the control information transmitted to the network from the management circuit in such a way that the control information can be updated as well as for controlling a transfer of the transfer packet, and a packet rewriting circuit 414 for executing a process of rewriting contents of the transfer packet in accordance with the control information stored in the table management circuit in parallel with a process of the control packet by the information management circuit in order to transfer to another network 13 the transfer packet judged to be the transfer packet by the judging circuit.
    • 通信网络控制系统包括分组判断电路412,用于判断通过网络12输入的可变长度分组是否是自寻址的控制分组CPKT,并且包含用于网络控制的控制信息,或者应该传送到的传送分组TPKT 其他地址,以及控制信息管理电路512,用于经由网络接收判断电路判定为控制分组的控制分组,并且基于接收到的控制分组来管理和处理控制信息。 该系统还包括路由表管理电路413,其用于存储从管理电路发送到网络的控制信息,使得可以更新控制信息以及控制传送分组的传送,并且分组重写 电路414,用于根据存储在表管理电路中的控制信息,与信息管理电路的控制分组的处理并行地执行重写传送分组的内容的处理,以便传送到另一网络13传送分组 由判断电路判定为传送包。