中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

5 records (took 0.014 seconds)

    Fixed length filtering to filter clusters of discrete segments of data
    2.
    发明授权
    Fixed length filtering to filter clusters of discrete segments of data 失效
    固定长度过滤来过滤离散数据段的群集

    公开(公告)号：US07487254B2

    公开(公告)日：2009-02-03

    申请号：US10027048

    申请日：2001-12-20

    Applicant: Rod Walsh ,  Tomi Hakkarainen ,  Juha-Pekka Luoma

    Inventor： Rod Walsh ,  Tomi Hakkarainen ,  Juha-Pekka Luoma

    IPC: G06F15/16

    CPC classification number: H04N21/6433 ,  H04L69/18 ,  H04N21/6371 ,  H04N21/64784

    Abstract: Methods and systems are provided for filtering digital data formatted in packets. A filter module contains a plurality of filters and is coupled to a filter mapping module. The filter mapping module receives the identification of clusters of discrete segments of a packet and selects a group of fixed length filters to filter the clusters.

    Abstract translation: 提供了用于过滤以数据包格式化的数字数据的方法和系统。 滤波器模块包含多个滤波器并耦合到滤波器映射模块。 过滤器映射模块接收分组的离散段的簇的标识，并选择一组固定长度的过滤器来过滤簇。

    Hybrid network encrypt/decrypt scheme
    3.
    发明授权
    Hybrid network encrypt/decrypt scheme 失效
    混合网络加密/解密方案

    公开(公告)号：US07477743B2

    公开(公告)日：2009-01-13

    申请号：US10072147

    申请日：2002-02-07

    Applicant: Tomi Hakkarainen ,  Rod Walsh

    Inventor： Tomi Hakkarainen ,  Rod Walsh

    IPC: H04L9/00

    CPC classification number: H04H60/23 ,  H04H60/91 ,  H04L9/0891 ,  H04L9/3226 ,  H04L2209/60 ,  H04L2209/80 ,  H04N7/162 ,  H04N7/1675 ,  H04N7/17318 ,  H04N21/25816 ,  H04N21/26613 ,  H04N21/6181 ,  H04N21/63345 ,  H04N2007/1739

    Abstract: A hybrid method for a service provider to transmit decryption information (e.g., algorithms, parameters, keys) to clients in a secure manner and at low cost for use in decrypting broadcast services. The service provider uses a bi-directional channel (e.g., a GPRS channel) to receive service requests, authenticate clients and transmit currently valid decryption information (and, optionally, future decryption information) necessary to decrypt a broadcast service. The service provider transmits the encrypted service on a unidirectional channel (e.g., a DVB-T channel). The service provider preferably also changes the encryption of the service with time, and, as it does, transmits updated decryption information to its clients on the unidirectional channel. The updated decryption information is encrypted using the currently valid decryption information and may also include future decryption information and synchronization information.

    Abstract translation: 一种用于服务提供商以安全的方式以低成本向解密信息（例如算法，参数，密钥）传送解密信息（用于解密广播服务）的混合方法。 服务提供商使用双向信道（例如，GPRS信道）来接收服务请求，认证客户端并发送解密广播服务所必需的当前有效的解密信息（以及可选地，未来的解密信息）。 服务提供商在单向信道（例如，DVB-T信道）上发送加密的业务。 服务提供者还优选地随时间改变服务的加密，并且如此，在单向信道上向其客户端发送更新的解密信息。 使用当前有效的解密信息来加密更新的解密信息，还可以包括将来的解密信息和同步信息。

    Boolean protocol filtering
    4.
    发明授权
    Boolean protocol filtering 有权
    布尔协议过滤

    公开(公告)号：US07924827B2

    公开(公告)日：2011-04-12

    申请号：US10818542

    申请日：2004-04-05

    Applicant: Tomi Hakkarainen ,  Pasi Kärkäs ,  Harri Pekonen

    Inventor： Tomi Hakkarainen ,  Pasi Kärkäs ,  Harri Pekonen

    IPC: H04L12/28

    CPC classification number: H04N21/235 ,  H04L12/18 ,  H04N21/434 ,  H04N21/435 ,  H04N21/4385

    Abstract: The present invention provides methods and apparatus for filtering a broadcast data stream that can support data flow, e.g. IPv6 packets. The present invention utilizes common filtering for packet segments that are common among IPv6 packets. Segments that are not common are separately filtered. A set of rules is applied to the filtered segments in order to determine whether corresponding packets should be subsequently processed. The present invention is applicable to numerous application including MPEG multicast services.

    Abstract translation: 本发明提供了用于过滤可以支持数据流的广播数据流的方法和装置，例如， IPv6报文 本发明利用IPv6分组中常见的分组段的公共过滤。 不常见的细分被单独过滤。 一组规则被应用于过滤的段，以便确定是否应该随后处理相应的分组。 本发明适用于包括MPEG多播服务在内的众多应用。

Patent Agency Ranking