Methods for sensing arrhythmias in a pacemaker/defibrillator and a pacemaker/defibrillator programmed to implement the same

    公开(公告)号:US06564097B1

    公开(公告)日:2003-05-13

    申请号:US10251282

    申请日:2002-09-20

    CPC classification number: A61N1/3622 A61N1/3962

    Abstract: A method for detecting an arrhythmia hidden by rapid pacing in a rate adaptive pacemaker/defibrillator. Unmasking a potential arrhythmia is accomplished by lengthening the pace cycle length by a small amount for a number of cycles followed by a shortening of the pace cycle length for the same number of cycles giving an average pacing rate equivalent to the desired rate. This can occur at all times or only when conditions make arrhythmia masking possible. Changing the pace cycle by a small amount over a number of cycles will move the arrhythmia and paced rhythm out of synchronization. Forcing the pacer to continue sensing the arrhythmia is accomplished by insuring that the pacer's sense refractory is less than one half of the pacing cycle length. This is done by constraining the programming of that value to one half the minimum pacing cycle length or using an adaptive sense refractory period. In another embodiment, a hidden arrhythmia is detected by periodically checking a relative refractory portion of the pace refractory period to see if a signal indicative of arrhythmia can be detected. This relative refractory period is produced by shortening the established refractory period by a calculated adaptive relative refractory period.

    Method and apparatus for configuring a mobile node to retain a “home” IP subnet address
    32.
    发明授权
    Method and apparatus for configuring a mobile node to retain a “home” IP subnet address 有权
    用于配置移动节点以保留“归属”IP子网地址的方法和装置

    公开(公告)号:US08560644B2

    公开(公告)日:2013-10-15

    申请号:US11944187

    申请日:2007-11-21

    CPC classification number: H04L61/6068 H04L29/12933 H04L61/2015 H04W80/04

    Abstract: A method and implementation are disclosed for binding a mobile node to a subnet. The invention comprises steps and implementations for intercepting messages sent by a mobile node to a server, associating a predetermined subnet with the intercepted messages and forwarding the intercepted messages to the server. The invention intercepts reply messages sent by at least one server and selects reply messages that are associated with the predetermined subnet. The selected reply messages are forwarded to the mobile node, and reply messages that are not associated with the predetermined subnet are discarded.

    Abstract translation: 公开了将移动节点绑定到子网的方法和实现。 本发明包括用于拦截由移动节点发送到服务器的消息的步骤和实现方式,将预定的子网与拦截的消息相关联,并将拦截的消息转发到服务器。 本发明拦截由至少一个服务器发送的应答消息,并选择与预定子网相关联的应答消息。 所选择的应答消息被转发到移动节点,并且丢弃与预定子网不相关联的应答消息。

    Rapid search for optimal wireless network configuration

    公开(公告)号:US08331977B2

    公开(公告)日:2012-12-11

    申请号:US13367525

    申请日:2012-02-07

    CPC classification number: H04W16/18

    Abstract: A search algorithm to find a globally optimal radio plan for a wireless network, including assignments of frequency and transmission power to multiple access points. Two different evaluation metrics are used in order to provide an optimal solution in a reasonable time period. Frequency searches are performed using a special rapid evaluation metric. Transmission powers are selected using a more refined metric that estimates data throughput. The search results are deterministic and execution time is also substantially deterministic.

    Distributing configuration parameters in a high density network
    35.
    发明授权
    Distributing configuration parameters in a high density network 有权
    在高密度网络中分配配置参数

    公开(公告)号:US07801546B2

    公开(公告)日:2010-09-21

    申请号:US11235560

    申请日:2005-09-26

    CPC classification number: H04W52/50 H04W28/18 H04W48/08 H04W52/28

    Abstract: A set of new information elements are defined that are to be used between an access point and a client that allow an access point to advertise its capabilities, configuration, and/or parameters allowing the client to tune to the parameters prior to, during, or after associating with the access point. If the access point adjusts these parameters, the changes are advertised in subsequent beacons and response frames and the client responsive to receiving a beacon or response frame with changed parameters will change its parameters accordingly. If the station changes its operating parameters it will send a message to the access point informing the access point of the changes.

    Abstract translation: 定义一组新的信息元素,用于接入点和客户端之间的允许接入点通告其功能,配置和/或参数的新的信息元素,允许客户端调整参数之前,期间或之前的参数 在与接入点关联之后。 如果接入点调整这些参数,则在随后的信标和响应帧中通知改变,并且响应于接收到具有改变的参数的信标或响应帧的客户端将相应地改变其参数。 如果工作站改变其操作参数,它将向接入点发送消息,通知接入点更改。

    Rapid search for optimal wireless network configuration

    公开(公告)号:US07502617B2

    公开(公告)日:2009-03-10

    申请号:US10933102

    申请日:2004-09-02

    CPC classification number: H04W16/18

    Abstract: A search algorithm to find a globally optimal radio plan for a wireless network, including assignments of frequency and transmission power to multiple access points. Two different evaluation metrics are used in order to provide an optimal solution in a reasonable time period. Frequency searches are performed using a special rapid evaluation metric. Transmission powers are selected using a more refined metric that estimates data throughput. The search results are deterministic and execution time is also substantially deterministic.

    METHOD, APPARATUS, AND SOFTWARE PRODUCT FOR DETECTING ROGUE ACCESS POINTS IN A WIRELESS NETWORK
    37.
    发明申请
    METHOD, APPARATUS, AND SOFTWARE PRODUCT FOR DETECTING ROGUE ACCESS POINTS IN A WIRELESS NETWORK 有权
    在无线网络中检测无线接入点的方法,设备和软件产品

    公开(公告)号:US20070286143A1

    公开(公告)日:2007-12-13

    申请号:US11843088

    申请日:2007-08-22

    CPC classification number: H04L63/1433 H04W12/12

    Abstract: A method, an apparatus, and a software program to implement a method to detect a rogue access point of a wireless network. The method includes maintaining an AP database that includes information about managed access point (APs) and friendly APs, including the MAC address of each managed AP. The method further includes sending a scan request to one or more managed APs, including one or more of a request for the receiving managed AP to scan for beacons and probe responses and a request for the receiving managed AP to request its clients to scan for beacons and probe responses. The method further includes receiving reports from at least one of the receiving managed APs, a report including information on any beacon or probe response received that was sent by an AP. For each beacon or probe response on which information is received, the method analyzes the information received in the report about the AP that sent the beacon or probe response, the analyzing including ascertaining if the MAC address of the AP that sent the beacon or probe response matches a MAC address of an AP in the AP database to ascertain whether or not the AP is a potential rogue AP or a managed or friendly AP.

    Abstract translation: 一种用于实现检测无线网络的恶意接入点的方法的方法,装置和软件程序。 该方法包括维护AP数据库,该AP数据库包括有关受管接入点(AP)和友好AP的信息,包括每个被管理AP的MAC地址。 该方法还包括向一个或多个受管理的AP发送扫描请求,包括对接收被管理的AP扫描信标和探测响应的请求中的一个或多个,以及对接收被管理的AP请求其客户端扫描信标的请求 并探测反应。 所述方法还包括从所述接收管理AP中的至少一个接收报告,报告包括由AP发送的所接收的任何信标或探测响应的信息。 对于接收到哪个信息的每个信标或探测响应,该方法分析报告中收到的关于发送信标或探测响应的AP的信息,该分析包括确定发送信标或探测响应的AP的MAC地址 匹配AP数据库中的AP的MAC地址,以确定AP是否是潜在的流氓AP或被管理或友好的AP。

    Protocol extension for a high density network
    38.
    发明申请
    Protocol extension for a high density network 有权
    高密度网络的协议扩展

    公开(公告)号:US20070072638A1

    公开(公告)日:2007-03-29

    申请号:US11235560

    申请日:2005-09-26

    CPC classification number: H04W52/50 H04W28/18 H04W48/08 H04W52/28

    Abstract: A set of new information elements are defined that are to be used between an access point and a client that allow an access point to advertise its capabilities, configuration, and/or parameters allowing the client to tune to the parameters prior to, during, or after associating with the access point. If the access point adjusts these parameters, the changes are advertised in subsequent beacons and response frames and the client responsive to receiving a beacon or response frame with changed parameters will change its parameters accordingly. If the station changes its operating parameters it will send a message to the access point informing the access point of the changes.

    Abstract translation: 定义一组新的信息元素,用于接入点和客户端之间的允许接入点通告其功能,配置和/或参数的新的信息元素,允许客户端调整参数之前,期间或之前的参数 在与接入点关联之后。 如果接入点调整这些参数,则在随后的信标和响应帧中通知改变,并且响应于接收到具有改变的参数的信标或响应帧的客户端将相应地改变其参数。 如果工作站改变其操作参数,它将向接入点发送消息,通知接入点更改。

    Quality evaluation for wireless communication networks
    39.
    发明授权
    Quality evaluation for wireless communication networks 有权
    无线通信网络的质量评估

    公开(公告)号:US07197013B2

    公开(公告)日:2007-03-27

    申请号:US10791466

    申请日:2004-03-01

    Abstract: Systems and methods for evaluating wireless network quality. A metric provided by embodiments of the present invention relies on information that is relatively easy to collect, can be very efficiently computed, and yet provides a realistic estimate of likely wireless network performance. In one implementation, the input includes path loss data and access point transmitter power level and frequency settings. A capacity indicator is computed for each client and each access point. A data rate indicator is computed for each client location. The traffic load is computed for each access point. Based on these computed indicators, a bidirectional client throughput can be computed for each client and a combined metric can be determined for the network as a whole.

    Abstract translation: 评估无线网络质量的系统和方法。 由本发明的实施例提供的度量取决于相对容易收集的信息,可以被非常有效地计算,并提供可能的无线网络性能的现实估计。 在一个实现中,输入包括路径损耗数据和接入点发射机功率电平和频率设置。 为每个客户端和每个接入点计算容量指标。 为每个客户端位置计算一个数据速率指示符。 为每个接入点计算流量负载。 基于这些计算的指标,可以为每个客户端计算双向客户端吞吐量,并且可以为整个网络确定组合度量。

    Physical realization of dynamic logic using parameterized tile partitioning
    40.
    发明申请
    Physical realization of dynamic logic using parameterized tile partitioning 有权
    使用参数化瓦片分区实现动态逻辑

    公开(公告)号:US20050060128A1

    公开(公告)日:2005-03-17

    申请号:US10738278

    申请日:2003-12-16

    CPC classification number: G06F17/5068

    Abstract: The matching algorithm of the layout synthesis method and apparatus disclosed locates transistor pattern matches in a design, links a parameterized tile to each identified match, and adjusts certain variable parameters of the linked parameterized tile to meet the physical design requirements of each located match. Each transistor pattern corresponds to a parameterized tile, which is an actual physical representation of the corresponding pattern and includes variable parameters, which may include transistor size. The matching algorithm locates matches in the design for an ordered list of patterns, names each located match, links the proper parameterized tile to each named match, and adjusts the tile's variable parameters as required. Transistors in the design are included in one and only one named located match.

    Abstract translation: 所公开的布局合成方法和设备的匹配算法在设计中定位晶体管模式匹配,将参数化的瓦片链接到每个识别的匹配,并且调整链接的参数化瓦片的某些可变参数以满足每个定位的匹配的物理设计要求。 每个晶体管图案对应于参数化的瓦片,其是相应图案的实际物理表示,并且包括可变参数,其可以包括晶体管尺寸。 匹配算法在设计中定位匹配的有序模式列表,每个匹配的名称,将正确的参数化图块链接到每个命名的匹配,并根据需要调整图块的变量参数。 设计中的晶体管包含在唯一的一个命名匹配中。

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