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    • 26. 发明授权
    • Ion gate for dual ion mobility spectrometer and method thereof
    • 双离子迁移谱仪的离子门及其方法
    • US08013297B2
    • 2011-09-06
    • US12579719
    • 2009-10-15
    • Hua PengQingjun ZhangJin LinYuanjing LiZhiqiang ChenShaoji MaoZhude DaiDai Hua, legal representativeShiping CaoZhongxia ZhangYangtian ZhangDexu LinQinghua Wang
    • Hua PengQingjun ZhangJin LinYuanjing LiZhiqiang ChenShaoji MaoZhude DaiShiping CaoZhongxia ZhangYangtian ZhangDexu LinQinghua Wang
    • G01N27/64H01J49/06
    • H01J3/04H01J49/004H01J49/061
    • Disclosed is an ion gate for a dual IMS and method. The ion gate includes an ion source, a first gate electrode placed on one side of the ion source, a second gate electrode placed on the other side of the ion source, a third gate electrode placed on the side of the first gate electrode away from the ion source, a fourth gate electrode placed on the side of the second gate electrode away from the ion source, wherein during the ion storage, the potential at the position on the tube axis of the ion gate corresponding to the first gate electrode is different from the potentials at the positions on the tube axis corresponding to the ion source and the third gate electrode, and the potential at the position on the tube axis corresponding to the second gate electrode is different from the potentials at the positions on the tube axis corresponding to the ion source and the fourth gate electrode. According to the present invention, after sample gas enters the ion gates, charge exchange with reaction ions occurs between the first gate electrode and the second electrode, and positive and negative ions are continuously stored into the storage regions for the positive and negative ions. This leads to an improvement of utility rate of ions. Then, the ions are educed in a step-wise manner from the storage regions for the positive and negative ions by a simple control of a combination of the electrodes.
    • 公开了一种用于双重IMS和方法的离子门。 离子浇口包括离子源,位于离子源一侧的第一栅电极,位于离子源另一侧的第二栅电极,位于第一栅电极侧的第三栅电极, 离子源,第四栅极放置在远离离子源的第二栅电极侧,其中在离子存储期间,对应于第一栅电极的离子门的管轴上的位置的电位不同 从对应于离子源和第三栅电极的管轴上的位置的电位和对应于第二栅电极的管轴上的位置的电位与管轴对应的位置的电位不同 到离子源和第四栅电极。 根据本发明,在样品气体进入离子浇口之后,在第一栅电极和第二电极之间产生与反应离子的电荷交换,正离子和负离子被连续地存储在正离子和负离子的存储区中。 这导致了离子的利用率的提高。 然后,通过简单地控制电极的组合,从正离子和负离子的存储区域逐步地排出离子。
    • 27. 发明申请
    • RESOURCE PARTITIONING IN HETEROGENEOUS ACCESS POINT NETWORKS
    • 资源分类在异构访问点网络中
    • US20100029282A1
    • 2010-02-04
    • US12511895
    • 2009-07-29
    • Anastasios StamoulisDexu LinTingfang Ji
    • Anastasios StamoulisDexu LinTingfang Ji
    • H04W36/00
    • H04W16/10H04L47/70H04W24/00H04W88/08
    • Providing for dynamic resource provisioning in wireless communication is described herein. By way of example, various wireless performance metrics are collected by respective network access points as an aggregate measure of wireless network performance. Aggregated data can be utilized to generate a performance model for the network and for individual access points. Changes to the data are updated to the model to provide a steady-state characterization of network performance. Wireless resources are generated for respective access points in a manner that optimizes wireless performance. Additionally, resource assignments can be updated at various intervals to re-optimize for existing wireless conditions, whether event driven or based on performance metrics. Accordingly, a robust and dynamic optimization is provided for wireless network resource provisioning that can accommodate heterogeneous access point networks in a changing topology.
    • 本文描述了在无线通信中提供动态资源配置。 作为示例,各种无线性能度量由相应的网络接入点收集,作为无线网络性能的综合测量。 可以使用聚合数据来生成网络和单个接入点的性能模型。 将数据更改更新为模型,以提供网络性能的稳态表征。 以优化无线性能的方式为各个接入点生成无线资源。 此外,资源分配可以以不同的时间间隔进行更新,以重新优化现有的无线状况,无论是事件驱动还是基于性能指标。 因此,为可以适应不断变化的拓扑中的异构接入点网络的无线网络资源提供提供鲁棒且动态的优化。
    • 28. 发明授权
    • Fair resource sharing in wireless communications
    • 无线通信中的公平资源共享
    • US08547910B2
    • 2013-10-01
    • US12390092
    • 2009-02-20
    • Arnab ChakrabartiAnastasios StamoulisDexu LinKambiz Azarian YazdiTingfang Ji
    • Arnab ChakrabartiAnastasios StamoulisDexu LinKambiz Azarian YazdiTingfang Ji
    • H04W28/16
    • H04W16/14H04L67/1082H04W16/06H04W72/00H04W72/12
    • Providing for fair resource sharing among wireless nodes in a wireless communication environment is described herein. By way of example, fairness can comprise establishing a set of resource sharing credits for wireless nodes. By expending credits, a node can borrow a resource of another node, to enable or enhance operation of the borrowing node. Credits for the borrowing node are decreased based on consumption of a shared resource, or credits for the lending node are increased based on such consumption, or both. Once an amount of credits expires, a node can be restricted from borrowing further resources until enough resources are lent to build up a suitable amount of credits. Accordingly, fairness can comprise correlating shared resource consumption with shared resource provisioning, to encourage participation in cooperative wireless communications.
    • 本文描述了在无线通信环境中的无线节点之间提供公平的资源共享。 作为示例,公平性可以包括为无线节点建立一组资源共享信用。 通过消耗积分,节点可以借用另一个节点的资源,以启用或增强借用节点的操作。 基于共享资源的消耗来减少借款节点的贷记,或者基于这样的消费增加贷款节点的贷款,或两者。 一旦一定数量的信用额到期,一个节点可以被限制借用进一步的资源,直到足够的资源被借出来建立一个合适数量的信用。 因此,公平性可以包括将共享资源消耗与共享资源供应相关联,以鼓励参与协作无线通信。