Connectionless ATM network support using partial connections
    1.
    发明授权
    Connectionless ATM network support using partial connections 失效
    无连接ATM网络支持使用部分连接

    公开(公告)号:US5357508A

    公开(公告)日:1994-10-18

    申请号:US918347

    申请日:1992-07-22

    IPC分类号: H04L12/56 H04Q11/04 H04L12/50

    摘要: Method and apparatus for supporting the Asynchronous Transfer Mode (ATM) connectionless service by means of Partial Connections (PCs) in an ATM system (18). These PCs are established between the source users (10, 11, 17) of said ATM system (18) and the destination switching nodes (14) to which the destination users (15) are linked. The use of PCs has no constraints on the size of the domain, because the information the source user (10, 11, 17) inserts in the Virtual Path Identifier/Virtual Channel Identifier (VPI/VCI) field of ATM cells to be transmitted to a destination user (15), is local to the source switching node (12) to which the source user (10, 11, 17) is connected. The information inserted in the VPI/VCI field identifies the PCs along which ATM cells are to be routed.

    摘要翻译: 一种用于通过ATM系统(18)中的部分连接(PC)来支持异步传输模式(ATM)无连接服务的方法和装置。 这些PC建立在所述ATM系统(18)的源用户(10,11,17)和目的地用户(15)所链接的目的地交换节点(14)之间。 PC的使用对于域的大小没有约束,因为源用户(10,11,17)插入要发送到的ATM信元的虚拟路径标识符/虚拟信道标识符(VPI / VCI)字段中的信息 目的地用户(15)对于源用户(10,11,17)连接到的源交换节点(12)是本地的。 插入在VPI / VCI字段中的信息标识出ATM信元所要路由的PC。

    Method to filter electronic messages in a message processing system

    公开(公告)号:US20080059590A1

    公开(公告)日:2008-03-06

    申请号:US11515063

    申请日:2006-09-05

    IPC分类号: G06F15/16 G06F15/173

    CPC分类号: G06Q10/107 H04L51/12

    摘要: The present invention proposes a method to filter electronic messages in a message processing system, this message processing system comprising a temporary memory for storing the received messages intended to users, a first database dedicated to a specific recipient, and a second database dedicated to a group of recipients, this method comprising the steps of:a) receiving an electronic message and storing it into the temporary memory, b) generating a plurality of proportional signatures of said message, each signature being generated from predefined length of the message content at random location, c) comparing with a first similarity threshold the generated signatures with the signatures present in the first database related to the message's recipient, and eliminating the generated signatures that are within the first similarity threshold of the first database's signatures, thus forming a set of suspicious signatures, d) comparing with a second predefined similarity threshold the suspicious signatures with activated signatures present in the second database, and flagging the message as spam if at least one of the suspicious signatures is within the second predefined similarity threshold of the second database's activated signatures, e) allowing a user to access the message, and moving said message from the temporary memory into a recipient's memory, f) if the message is accepted by the user, storing the generated signatures related to this message into the first database related to this recipient, g) if the message is declared spam by the user, using the suspicious signatures of said message in the second database for, either, if no similar signature exists, creating a non-activated signature into the second database with said signature or updating a previously stored signature that is within of a third similarity threshold of a suspicious signature by incrementing its first matching counter, and activating said previously stored signature if the matching counter is above a first counter threshold.

    Method for retrieving data from ultra wideband radio transmission signals and receiver implementing said method
    3.
    发明授权
    Method for retrieving data from ultra wideband radio transmission signals and receiver implementing said method 有权
    从超宽带无线电传输信号中检索数据的方法和实现所述方法的接收机

    公开(公告)号:US08385187B2

    公开(公告)日:2013-02-26

    申请号:US12865521

    申请日:2009-02-05

    IPC分类号: H04J7/00

    CPC分类号: H04B1/719 H04B1/71637

    摘要: The present invention concerns a receiver and a method for retrieving data from Ultra wideband radio transmission signals received by a receiver and transmitted in packets containing at least a preamble known to the receiver and a payload containing data unknown to the receiver. The payload data is formed of at least one burst containing at least one pulse. The method comprises the steps of receiving a signal corresponding to the preamble of a packet by a receiver; determining the energy of the received signal; determining weighting coefficients from the energy of the received signal; receiving a signal corresponding to the payload of a packet by a receiver; determining the energy of the received signal; calculating a threshold depending on the weighting coefficients; and applying a decision rule based on the sampled energy, weighted by said weighting coefficients and depending on said calculated threshold.

    摘要翻译: 本发明涉及一种用于从由接收机接收的超宽带无线电传输信号中检索数据的接收机和方法,所述数据包含至少包含接收机已知的前同步码和包含接收机未知的数据的有效载荷。 有效负载数据由至少一个包含至少一个脉冲的脉冲组成。 该方法包括以下步骤:由接收机接收与分组的前同步码对应的信号; 确定接收信号的能量; 根据接收信号的能量确定加权系数; 由接收机接收对应于分组的有效载荷的信号; 确定接收信号的能量; 根据加权系数计算阈值; 以及基于所述采样的能量应用由所述加权系数加权并且取决于所述计算的阈值的判定规则。

    Connectionless ATM data services
    4.
    发明授权
    Connectionless ATM data services 失效
    无连接ATM数据业务

    公开(公告)号:US5432777A

    公开(公告)日:1995-07-11

    申请号:US807359

    申请日:1991-12-16

    IPC分类号: H04L12/56 H04J3/24

    摘要: In a system using the Asynchronous Transfer Mode (ATM) for data transfers, each cell is usually routed in response to VPI/VCI values identifying a previously established connection. A connectionless transfer mode is disclosed by which to each requesting user, a unique routing identifier (RI) is allocated. All RIs allocated in the whole network are kept in a table of a routing identifier management function (RIMF). When a source user wants to send a message to a destination user, it requests the destination RI from the RIMF and inserts the received RI into each transmitted cell in the VCI field. The RI may, include a switching node identifier (SI) and a port identifier (PI). In that case, each switching node has a permanent table of all SIs plus respective routing information, and a changing table of all currently allocated PIs of locally connected users plus the respective user port names.

    摘要翻译: 在使用异步传输模式(ATM)进行数据传输的系统中,每个单元通常被路由以响应标识先前建立的连接的VPI / VCI值。 公开了一种无连接传送模式,通过该方式向每个请求用户分配唯一的路由标识符(RI)。 在整个网络中分配的所有RI都保存在路由标识符管理功能(RIMF)的表中。 当源用户想要向目标用户发送消息时,它从RIMF请求目的地RI,并将接收的RI插入到VCI字段中的每个发送的小区中。 RI可以包括交换节点标识符(SI)和端口标识符(PI)。 在这种情况下,每个交换节点具有所有SI的永久表以及相应的路由信息​​,以及本地连接用户的所有当前分配的PI的改变表加上相应的用户端口名称。

    Connectionless ATM data services
    6.
    发明授权
    Connectionless ATM data services 失效
    无连接ATM数据业务

    公开(公告)号:US5517497A

    公开(公告)日:1996-05-14

    申请号:US408445

    申请日:1995-03-21

    IPC分类号: H04L12/56 H04J3/24

    摘要: In a system using the Asynchronous Transfer Mode (ATM) for data transfers, each cell is usually routed in response to VPI/VCI values identifying a previously established connection. A connectionless transfer mode is disclosed by which to each requesting user, a unique routing identifier(RI) is allocated. All RIs allocated in the whole network are kept in a table of a routing-identifier management function (RIMF). When a source user wants to send a message to a destination user, it requests the destination RI from the RIMF and inserts the received RI into each transmitted call in the VCI field. The RI may, include a switching node identifier (SI) and a port identifier (PI). In that case, each switching node has a permanent table of all SIs plus respective routing information, and a changing table of all currently allocated PIs of locally connected users plus the respective user port names.

    摘要翻译: 在使用异步传输模式(ATM)进行数据传输的系统中,每个单元通常被路由以响应标识先前建立的连接的VPI / VCI值。 公开了一种无连接传送模式,通过该方式向每个请求用户分配唯一的路由标识符(RI)。 在整个网络中分配的所有RI都保存在路由标识管理功能(RIMF)的表中。 当源用户想要向目标用户发送消息时,它从RIMF请求目的地RI,并将接收到的RI插入到VCI字段中的每个发送的呼叫中。 RI可以包括交换节点标识符(SI)和端口标识符(PI)。 在这种情况下,每个交换节点具有所有SI的永久表以及相应的路由信息​​,以及本地连接用户的所有当前分配的PI的改变表加上相应的用户端口名称。

    METHOD FOR ESTIMATING AND CORRECTING A DRIFT BETWEEN CLOCKS OF A RECEIVING TRANSCEIVER AND A CORRESPONDING EMITTING TRANSCEIVER, AND RECEIVER FOR IMPLEMENTING SAID METHOD
    7.
    发明申请
    METHOD FOR ESTIMATING AND CORRECTING A DRIFT BETWEEN CLOCKS OF A RECEIVING TRANSCEIVER AND A CORRESPONDING EMITTING TRANSCEIVER, AND RECEIVER FOR IMPLEMENTING SAID METHOD 有权
    用于估计和校正接收收发器和相应发射收发器的时钟之间的干扰的方法,以及用于实现所述方法的接收器

    公开(公告)号:US20110051847A1

    公开(公告)日:2011-03-03

    申请号:US12874052

    申请日:2010-09-01

    IPC分类号: H04L27/00

    CPC分类号: H04L7/0054

    摘要: Method for estimating and correcting a frequency offset between a local clock of a receiving transceiver and a remote clock of an emitting transceiver comprises receiving by said receiving transceiver, a signal emitted by the emitting transceiver, said signal lacking a continuous sinusoidal carrier and having at least one symbol, each symbol being emitted within a time frame having a first duration; sampling the signal by taking for each time frame a set of energy measurements of said signal; forming a matrix representative of said energy measurements; determining from said energy matrix, points of maximum of energy within each time frame; determining a line connecting a plurality of said points within each of said time frames; determining a slope of said line; calculating a frequency offset between the clocks of the emitting and receiving transceivers using the slope; and adjusting the receiving transceiver's clock frequency according to the frequency offset.

    摘要翻译: 用于估计和校正接收收发器的本地时钟与发射收发器的远程时钟之间的频率偏移的方法包括由所述接收收发器接收由发射收发器发射的信号,所述信号缺少连续的正弦载波并且具有至少 一个符号,每个符号在具有第一持续时间的时间帧内被发射; 通过对每个时间帧采集所述信号的一组能量测量来对信号进行采样; 形成代表所述能量测量的矩阵; 从所述能量矩阵确定每个时间范围内的最大能量点; 确定在每个所述时间帧内连接多个所述点的线; 确定所述线的斜率; 使用斜率计算发射和接收收发器的时钟之间的频率偏移; 并根据频率偏移调整接收收发器的时钟频率。

    Synchronizing method for impulse radio network

    公开(公告)号:US20060093077A1

    公开(公告)日:2006-05-04

    申请号:US11260390

    申请日:2005-10-28

    IPC分类号: H04L27/06

    CPC分类号: H04B1/7183

    摘要: A method to synchronize impulse radio signal in a receiver based on a cross-correlation between an input signal and a template pulse train is described. The method comprises the steps of receiving a radio signal, performing a correlation between the acquired radio signal and a template pulse train, splitting the correlation into at least two elementary correlations over intervals of predefined length and separated by a predetermined time to obtain elementary correlation output, performing an elementary threshold check on each elementary correlation output, summing the elementary threshold check outputs to form a sum result.

    Routing bandwidth-reserved connections in information networks
    9.
    发明授权
    Routing bandwidth-reserved connections in information networks 失效
    在信息网络中路由带宽保留连接

    公开(公告)号:US6016306A

    公开(公告)日:2000-01-18

    申请号:US666377

    申请日:1996-09-12

    摘要: This invention defines a routing method which allows a determination of best paths from link weights in situations where these weights are not additive, but the characteristic of a concatenated path is determined mainly by single "bottleneck" links. To be compatible, the metric must be chosen from a specific set of metrics, called bottleneck metrics in this description. The new widest-path method has some characteristics in common with the known Dijkstra method for additive weights. Implementations in communication networks are disclosed which lead to new nodes, new networks and new network protocols.

    摘要翻译: PCT No.PCT / EP93 / 03683第 371日期:1996年9月12日 102(e)日期1996年9月12日PCT 1993年12月24日PCT公布。 公开号WO95 / 18498 日期1995年7月6日本发明定义了一种路由方法,其允许在这些权重不是加法的情况下确定来自链路权重的最佳路径,但是连接路径的特性主要由单个“瓶颈”链路确定。 要兼容,必须从此描述中称为瓶颈度量的特定指标集中选择度量。 新的最宽路径方法具有与已知的Dijkstra方法相加的一些特征。 公开了通信网络中的实现,其导致新的节点,新的网络和新的网络协议。

    Method for estimating and correcting a drift between clocks of receiving transceiver and a corresponding emitting transceiver, and receive for implementing said method
    10.
    发明授权
    Method for estimating and correcting a drift between clocks of receiving transceiver and a corresponding emitting transceiver, and receive for implementing said method 有权
    用于估计和校正接收收发器的时钟与对应的发射收发器之间的漂移的方法,以及用于实现所述方法的接收

    公开(公告)号:US08396175B2

    公开(公告)日:2013-03-12

    申请号:US12874052

    申请日:2010-09-01

    IPC分类号: H04L27/06 H04L5/16 H04L27/08

    CPC分类号: H04L7/0054

    摘要: Method for estimating and correcting a frequency offset between a local clock of a receiving transceiver and a remote clock of an emitting transceiver comprises receiving by said receiving transceiver, a signal emitted by the emitting transceiver, said signal lacking a continuous sinusoidal carrier and having at least one symbol, each symbol being emitted within a time frame having a first duration; sampling the signal by taking for each time frame a set of energy measurements of said signal; forming a matrix representative of said energy measurements; determining from said energy matrix, points of maximum of energy within each time frame; determining a line connecting a plurality of said points within each of said time frames; determining a slope of said line; calculating a frequency offset between the clocks of the emitting and receiving transceivers using the slope; and adjusting the receiving transceiver's clock frequency according to the frequency offset.

    摘要翻译: 用于估计和校正接收收发器的本地时钟与发射收发器的远程时钟之间的频率偏移的方法包括由所述接收收发器接收由发射收发器发射的信号,所述信号缺少连续的正弦载波并且具有至少 一个符号,每个符号在具有第一持续时间的时间帧内被发射; 通过对每个时间帧采集所述信号的一组能量测量来对信号进行采样; 形成代表所述能量测量的矩阵; 从所述能量矩阵确定每个时间范围内的最大能量点; 确定在每个所述时间帧内连接多个所述点的线; 确定所述线的斜率; 使用斜率计算发射和接收收发器的时钟之间的频率偏移; 并根据频率偏移调整接收收发器的时钟频率。