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    • 2. 发明授权
    • Seamless handoff for a wireless lan/wired lan internetworking
    • 无线局域网/有线局域网的无缝切换
    • US5875185A
    • 1999-02-23
    • US544386
    • 1995-10-10
    • Yao-Tzung WangTzung-Pao LinNen-Fu Huang
    • Yao-Tzung WangTzung-Pao LinNen-Fu Huang
    • H04L12/28H04J3/12
    • H04W40/36H04W36/18H04W8/24H04W84/12H04W88/08H04W92/02
    • An exclusive VCC is maintained between each two communicating work stations (MT pair). The handoff method differs if the MT moves to a coverage area having a base station connected to the same switch as the previous coverage area (intra-switch mobility) or to a coverage area having a base station connected to a different switch than the previous coverage area (inter-switch mobility). In intra-switch mobility, the switch changes the path directly to the new base station and eliminates the path through the original base station. In inter-switch mobility, the switch performs the path set-up. The path may be elongated from the switch connected to the original BS, to the new BS, rather than from the original BS to the new BS. This eliminates the path through the original base station. The exclusive VCC between the MT pair permits path elongation to be minimized.
    • 在两个通信工作站(MT对)之间维持独占VCC。 如果MT移动到具有连接到与先前的覆盖区域(交换机内移动性)相同的交换机的基站的覆盖区域或者具有连接到与先前覆盖的不同交换机的基站的覆盖区域的切换方法不同 区域(交换机间移动性)。 在交换机内的移动性中,交换机将路径直接改变到新的基站,并消除通过原始基站的路径。 在交换机间的移动性中,交换机执行路径设置。 该路径可以从连接到原始BS的交换机延伸到新的BS,而不是从原始BS到新的BS。 这消除了通过原始基站的路径。 MT对之间的专用VCC允许路径伸长率最小化。
    • 3. 发明申请
    • Method and system for providing system security services
    • 提供系统安全服务的方法和系统
    • US20070118532A1
    • 2007-05-24
    • US11285501
    • 2005-11-22
    • Ping-Piao LuShi-Ming ZhaoYao-Tzung Wang
    • Ping-Piao LuShi-Ming ZhaoYao-Tzung Wang
    • G06F17/30
    • G06Q30/02G06F21/56
    • A method and system for providing system security services is disclosed. The server of a vendor of a content inspection engine receives a current set of definition data in a first format from the server of a definition data file generator through a network. The vendor and the definition data file generator are two unaffiliated legal entities. Then the server of the content inspection engine vendor makes available the definition data to be used by a network device via the network. The network device utilizes the content inspection engine and the definition data in a second format that the content inspection engine recognizes in its unmodified state to provide system security services to a number of devices that are attached to the network device.
    • 公开了一种用于提供系统安全服务的方法和系统。 内容检查引擎的供应商的服务器通过网络从定义数据文件生成器的服务器接收第一格式的当前定义数据集合。 供应商和定义数据文件生成器是两个无关联的法律实体。 然后,内容检查引擎供应商的服务器使网络设备经由网络使用定义数据。 网络设备利用内容检查引擎和内容检查引擎在其未修改状态下识别的第二格式的定义数据,以向附加到网络设备的多个设备提供系统安全服务。
    • 9. 发明授权
    • Fair data bus arbitration system which assigns adjustable priority
values to competing sources
    • 公平的数据总线仲裁系统,为竞争源分配可调优先级值
    • US6092137A
    • 2000-07-18
    • US978580
    • 1997-11-26
    • Paul HuangHuan-Pin TsengYao-Tzung WangTai-Chung ChangKuo-Yen Fan
    • Paul HuangHuan-Pin TsengYao-Tzung WangTai-Chung ChangKuo-Yen Fan
    • G06F13/364G06F13/00
    • G06F13/364
    • A scheme for arbitrating access to a data bus shared among a plurality of competing sources is provided. Each competing source is assigned an adjustable priority weighting value (PWV) which is initially set to an initial value based on the bandwidth requirements of the competing source. During arbitration, the PWVs of those competing sources requesting access to the bus are compared, and the competing source with the smallest PWV is granted access. The PWV of the competing source which was granted access to the bus is reset to its initial value and the PWV of each competing source which requested, but was denied, access is reduced by one for subsequent comparisons. The arbitration scheme of the present invention is further applied to two-level arbitration. Each competing source is classified into a competing source group, and the requests from the grouped competing sources are processed by first level arbitration. First level arbitration passes one competing source for each group to a second level arbiter. The second level arbiter compares the PWVs of the competing sources resulting from first level arbitration to determine the competing source with the smallest PWV, and adjusts the PWVs after access to the bus has been granted.
    • 提供了一种用于仲裁访问多个竞争源之间共享的数据总线的方案。 每个竞争源被分配有可调优先权重值(PWV),其基于竞争源的带宽需求被初始设置为初始值。 在仲裁期间,比较了请求访问总线的竞争源的PWV,允许访问具有最小PWV的竞争源。 允许访问总线的竞争源的PWV重置为其初始值,并且请求但被拒绝访问的每个竞争源的PWV减少一个用于随后的比较。 本发明的仲裁方案进一步适用于两级仲裁。 每个竞争源被分类为竞争源组,来自分组竞争源的请求通过一级仲裁处理。 第一级仲裁将每个组的一个竞争源传递给第二级仲裁器。 第二级仲裁者比较由一级仲裁产生的竞争源的PWV,以确定具有最小PWV的竞争源,并且在访问总线之后调整PWV。