Cable network system and method for controlling security in cable network encrypted dynamic multicast session
    1.
    发明授权
    Cable network system and method for controlling security in cable network encrypted dynamic multicast session 有权
    有线网络系统和控制电缆网络加密动态组播会话安全的方法

    公开(公告)号:US08190887B2

    公开(公告)日:2012-05-29

    申请号:US12190661

    申请日:2008-08-13

    IPC分类号: G06F11/30

    CPC分类号: H04L63/065 H04L12/2861

    摘要: A security control method in a cable network dynamic multicast session, and more particularly, a method of controlling forward secrecy and backward secrecy in a Data Over Cable Service Interface Specifications (DOCSIS) 3.0 network dynamic multicast session is provided. A security control method in a cable network dynamic multicast session, includes: maintaining a multicast group that is allocated with a first Downstream Service Identifier (DSID) and a first Security Association Identifier (SAID) and that is joined by a first cable modem and a second cable modem; receiving a LeaveMulticastSession message from the second cable modem; exchanging, corresponding to the LeaveMulticastSession message, a Dynamic Bonding Change (DBC) message for changing a multicast parameter with the second cable modem; and updating a first Traffic Encryption Key (TEK) corresponding to the first DSID with a second TEK.

    摘要翻译: 提供了一种有线网络动态多播会话中的安全控制方法,特别是提供了一种在数据有线服务接口规范(DOCSIS)3.0网络动态多播会话中控制前向保密和向后保密的方法。 有线网络动态多播会话中的安全控制方法包括:维护被分配有第一下行业务标识符(DSID)和第一安全关联标识符(SAID)的组播组,并由第一电缆调制解调器和 第二个电缆调制解调器 从所述第二电缆调制解调器接收LeaveMulticastSession消息; 交换对应于LeaveMulticastSession消息的动态绑定改变(DBC)消息,用于利用第二电缆调制解调器改变多播参数; 以及用第二TEK更新对应于所述第一DSID的第一业务加密密钥(TEK)。

    Multi-channel tuning receiver and multi-channel tuning method thereof
    2.
    发明授权
    Multi-channel tuning receiver and multi-channel tuning method thereof 失效
    多通道调谐接收机及其多通道调谐方法

    公开(公告)号:US08019300B2

    公开(公告)日:2011-09-13

    申请号:US12273176

    申请日:2008-11-18

    IPC分类号: H04B1/18 H04B17/02

    CPC分类号: H04B1/0053

    摘要: Provided are a multi-channel tuning receiver, including: a broadband radio frequency (RF) tuner to receive a broadband signal, divide the broadband signal into a plurality of signals, tune the divided signals, combine the tuned signals into a single signal, and output the combined single signal; an analog-to-digital (A/D) converter to convert the combined single signal to digital signal; a channelizer to extract only a bonded channel from the digital signal; and a plurality of demodulators to demodulate the bonded channel, and a multi-channel tuning method thereof.

    摘要翻译: 提供了一种多通道调谐接收机,包括:宽带射频(RF)调谐器,用于接收宽带信号,将宽带信号划分为多个信号,调谐分频信号,将调谐信号组合成单个信号;以及 输出组合单信号; 用于将组合的单个信号转换成数字信号的模拟(A / D)转换器; 信道化器,从数字信号中仅提取绑定信道; 以及多个解调器来解调接合信道,以及多信道调谐方法。

    Method of configuring hierarchical network of user group and resource group and key distribution center
    3.
    发明授权
    Method of configuring hierarchical network of user group and resource group and key distribution center 有权
    配置用户组和资源组和密钥分发中心的分层网络的方法

    公开(公告)号:US08032926B2

    公开(公告)日:2011-10-04

    申请号:US11978877

    申请日:2007-10-30

    IPC分类号: H04L29/00 H04L9/08

    摘要: Provided are a method of configuring a hierarchical network of user groups and resource groups, and a key distribution center. The method includes the steps of: analyzing hierarchical connection relationships between respective user groups and respective resource groups, comparing redundancy rates of the respective hierarchical connection relationships, and determining a connection mode having a larger redundancy rate; separating the respective user groups and resource groups and hierarchically connecting the user groups with the resource groups, according to the determined connection mode; comparing hierarchical connections between the respective separated user groups and resource groups, and removing an overlapping hierarchical connection; and recombining the separate hierarchical connections except for the overlapping hierarchical connection, and configuring an entire network.

    摘要翻译: 提供了一种配置用户组和资源组的分层网络以及密钥分配中心的方法。 该方法包括以下步骤:分析各个用户组与各个资源组之间的分层连接关系,比较各分级连接关系的冗余率,并确定冗余率较大的连接模式; 根据所确定的连接模式,分离各个用户组和资源组,并将用户组与资源组分层连接; 比较各个分离的用户组和资源组之间的分层连接,以及移除重叠的分级连接; 并重新组合除了重叠的分层连接之外的单独的分层连接,以及配置整个网络。

    RECURSIVE DEMODULATION APPARATUS AND METHOD
    4.
    发明申请
    RECURSIVE DEMODULATION APPARATUS AND METHOD 失效
    回归解调装置和方法

    公开(公告)号:US20100301931A1

    公开(公告)日:2010-12-02

    申请号:US12744837

    申请日:2008-07-29

    IPC分类号: H03D3/00

    摘要: A recursive demodulation apparatus is provided. Therecursive demodulation apparatus, including: a segment generation unit dividing data symbols with a residual frequency or phase error into a predetermined number of data symbols, and generating a plurality of segments, each of the plurality of segments including the predetermined number of data symbols; and a phase error correction unit sequentially correcting a phase error of each of the data symbols, included in the each of the plurality of segments, for each segment.

    摘要翻译: 提供递归解调装置。 一种解调装置,包括:段生成单元,将具有残差频率或相位误差的数据符号划分为预定数量的数据符号,并生成多个段,所述多个段中的每一个包括预定数目的数据符号; 以及相位误差校正单元,对于每个段,顺序地校正包括在所述多个段中的每一个中的每个数据符号的相位误差。

    Fixed codebook search method through iteration-free global pulse replacement and speech coder using the same method
    5.
    发明授权
    Fixed codebook search method through iteration-free global pulse replacement and speech coder using the same method 失效
    固定码本搜索方法通过无迭代全局脉冲替换和语音编码器采用相同的方法

    公开(公告)号:US08249864B2

    公开(公告)日:2012-08-21

    申请号:US12442554

    申请日:2007-04-11

    IPC分类号: G10L19/00 G10L15/00

    CPC分类号: G10L19/12 G10L2019/0013

    摘要: Provided are a fixed codebook search method based on iteration-free global pulse replacement in a speech codec, and a Code-Excited Linear-Prediction (CELP)-based speech codec using the method. The fixed codebook search method based on iteration-free global pulse replacement in a speech codec includes the steps of: (a) determining an initial codevector using a pulse-position likelihood vector or a correlation vector; (b) calculating a fixed-codebook search criterion value for the initial codevector; (c) calculating fixed-codebook search criterion values for respective codevectors obtained by replacing a pulse of the initial codevector each time for respective tracks, and determining a pulse position generating the largest fixed-codebook search criterion value as a candidate pulse position for the respective tracks, respectively; (d) calculating fixed-codebook search criterion values for respective codevectors of all combinations obtained by replacing at least one pulse position of the initial codevector with the candidate pulse positions of the respective tracks, and determining the largest value of the fixed-codebook search criterion values; and (e) comparing the fixed-codebook search criterion value for the initial codevector obtained in step (b) with the largest value determined in step (d) to determine an optimum fixed codevector.

    摘要翻译: 提供了一种基于语音编解码器中基于无迭代全局脉冲替换的固定码本搜索方法,以及使用该方法的基于码激励线性预测(CELP)的语音编解码器。 基于语音编解码器中基于无迭代全局脉冲替换的固定码本搜索方法包括以下步骤:(a)使用脉冲位置似然矢量或相关矢量确定初始码矢量; (b)计算初始码矢量的固定码本搜索标准值; (c)通过每次针对各个磁道替换初始码矢量的脉冲而获得的各个码矢量的固定码本搜索条件值计算,并且确定产生最大固定码本搜索标准值的脉冲位置作为相应磁道的候选脉冲位置 轨道; (d)通过将所述初始码矢量的至少一个脉冲位置替换为各个轨道的候选脉冲位置而获得的所有组合的相应代码矢量的固定码本搜索标准值计算,并且确定固定码本搜索标准的最大值 价值观 和(e)将步骤(b)中获得的初始码矢量的固定码本搜索标准值与步骤(d)中确定的最大值进行比较,以确定最佳固定码矢量。

    Cable modem and method of performing channel bonding using digital upconverter
    6.
    发明授权
    Cable modem and method of performing channel bonding using digital upconverter 失效
    电缆调制解调器和使用数字上变频器执行信道绑定的方法

    公开(公告)号:US08223824B2

    公开(公告)日:2012-07-17

    申请号:US12641810

    申请日:2009-12-18

    IPC分类号: H04B1/38 H04L5/16

    摘要: A cable modem is provided. The cable modem may include: a plurality of modulators to generate a plurality of pieces of digital data corresponding to a plurality of independent channels; a plurality of digital upconverters to up-convert a frequency of each of the plurality of pieces of digital data into a predetermined frequency; and a Radio Frequency (RF) processor to channel-bond outputs of the plurality of digital upconverters into at least one channel, and generate an analog output signal, the outputs having the predetermined frequency.

    摘要翻译: 提供电缆调制解调器。 电缆调制解调器可以包括:多个调制器,用于产生对应于多个独立信道的多个数字数据; 多个数字上变频器,用于将多个数字数据中的每一个的频率上变频为预定频率; 以及射频(RF)处理器,用于将所述多个数字上变频器的输出信号绑定到至少一个通道中,并且产生具有所述预定频率的输出的模拟输出信号。

    FIXED CODEBOOK SEARCH METHOD THROUGH ITERATION-FREE GLOBAL PULSE REPLACEMENT AND SPEECH CODER USING THE SAME METHOD
    7.
    发明申请
    FIXED CODEBOOK SEARCH METHOD THROUGH ITERATION-FREE GLOBAL PULSE REPLACEMENT AND SPEECH CODER USING THE SAME METHOD 失效
    使用相同方法通过无迭代全球脉冲替换和语音编码器的固定代码搜索方法

    公开(公告)号:US20100088091A1

    公开(公告)日:2010-04-08

    申请号:US12442554

    申请日:2007-04-11

    IPC分类号: G10L19/00

    CPC分类号: G10L19/12 G10L2019/0013

    摘要: Provided are a fixed codebook search method based on iteration-free global pulse replacement in a speech codec, and a Code-Excited Linear-Prediction (CELP)-based speech codec using the method. The fixed codebook search method based on iteration-free global pulse replacement in a speech codec includes the steps of: (a) determining an initial codevector using a pulse-position likelihood vector or a correlation vector; (b) calculating a fixed-codebook search criterion value for the initial codevector; (c) calculating fixed-codebook search criterion values for respective codevectors obtained by replacing a pulse of the initial codevector each time for respective tracks, and determining a pulse position generating the largest fixed-codebook search criterion value as a candidate pulse position for the respective tracks, respectively; (d) calculating fixed-codebook search criterion values for respective codevectors of all combinations obtained by replacing at least one pulse position of the initial codevector with the candidate pulse positions of the respective tracks, and determining the largest value of the fixed-codebook search criterion values; and (e) comparing the fixed-codebook search criterion value for the initial codevector obtained in step (b) with the largest value determined in step (d) to determine an optimum fixed codevector.

    摘要翻译: 提供了一种基于语音编解码器中基于无迭代全局脉冲替换的固定码本搜索方法,以及使用该方法的基于码激励线性预测(CELP)的语音编解码器。 基于语音编解码器中基于无迭代全局脉冲替换的固定码本搜索方法包括以下步骤:(a)使用脉冲位置似然矢量或相关矢量确定初始码矢量; (b)计算初始码矢量的固定码本搜索标准值; (c)通过每次针对各个磁道替换初始码矢量的脉冲而获得的各个码矢量的固定码本搜索条件值计算,并且确定产生最大固定码本搜索标准值的脉冲位置作为相应磁道的候选脉冲位置 轨道; (d)通过将所述初始码矢量的至少一个脉冲位置替换为各个轨道的候选脉冲位置而获得的所有组合的相应代码矢量的固定码本搜索标准值计算,并且确定固定码本搜索标准的最大值 价值观 和(e)将步骤(b)中获得的初始码矢量的固定码本搜索标准值与步骤(d)中确定的最大值进行比较,以确定最佳固定码矢量。

    Device and method for transmitting and receiving broadcasting signal
    8.
    发明授权
    Device and method for transmitting and receiving broadcasting signal 有权
    发射和接收广播信号的装置和方法

    公开(公告)号:US08520495B2

    公开(公告)日:2013-08-27

    申请号:US13015168

    申请日:2011-01-27

    IPC分类号: H04N5/455

    CPC分类号: H04H20/42

    摘要: A broadcasting signal transmitting device transmits a broadcasting signal including a base layer signal and an enhancement layer signal as well as an additional layer signal relating to the broadcasting signal to a broadcasting signal receiving device. The broadcasting signal receiving device selectively provides the enhancement layer signal and the additional layer signal to the user according to the user's service level. Accordingly, various services are differently provided to the user according to the user level.

    摘要翻译: 广播信号发送装置向广播信号接收装置发送包括基本层信号和增强层信号的广播信号以及与广播信号有关的附加层信号。 广播信号接收装置根据用户的服务水平向用户选择性地提供增强层信号和附加层信号。 因此,根据用户级别向用户提供不同的服务。

    Recursive demodulation apparatus and method
    10.
    发明授权
    Recursive demodulation apparatus and method 失效
    递归解调装置及方法

    公开(公告)号:US08138824B2

    公开(公告)日:2012-03-20

    申请号:US12744837

    申请日:2008-07-29

    IPC分类号: H03D3/00 H04L27/22

    摘要: A recursive demodulation apparatus is provided. Therecursive demodulation apparatus, including: a segment generation unit dividing data symbols with a residual frequency or phase error into a predetermined number of data symbols, and generating a plurality of segments, each of the plurality of segments including the predetermined number of data symbols; and a phase error correction unit sequentially correcting a phase error of each of the data symbols, included in the each of the plurality of segments, for each segment.

    摘要翻译: 提供递归解调装置。 一种解调装置,包括:段生成单元,将具有残差频率或相位误差的数据符号划分为预定数量的数据符号,并生成多个段,所述多个段中的每一个包括预定数目的数据符号; 以及相位误差校正单元,对于每个段,顺序地校正包括在所述多个段中的每一个中的每个数据符号的相位误差。