Method and apparatus of modulating signal in broadcasting and communication system
    31.
    发明授权
    Method and apparatus of modulating signal in broadcasting and communication system 失效
    广播通信系统调制信号的方法和装置

    公开(公告)号:US08705658B2

    公开(公告)日:2014-04-22

    申请号:US13275961

    申请日:2011-10-18

    IPC分类号: H04L27/20

    CPC分类号: H04L27/2085

    摘要: Modulating method and apparatus in a broadcasting and communication system are provided. The modulating apparatus includes: a first quadrature phase shift keying (QPSK) modulating unit QPSK-modulating first data including in-phase (I) data and quadrature (Q) data to generate a first signal; a phase rotating unit rotating a phase of the first signal by θ to generate a phase rotated signal; a second QPSK modulating unit QPSK-modulating second data different from the first data and including I′ data and Q′ data to generate a second signal; and a layer modulating unit modulating the phase rotated signal and the second signal to output a final signal.

    摘要翻译: 提供了广播和通信系统中的调制方法和装置。 调制装置包括:第一正交相移键控(QPSK)调制单元,QPSK调制包括同相(I)数据和正交(Q)数据的第一数据,以产生第一信号; 旋转第一信号的相位的相位旋转单元, 以产生相位旋转信号; 第二QPSK调制单元QPSK调制与第一数据不同的第二数据并且包括I'数据和Q'数据以产生第二信号; 以及调制相位旋转信号和第二信号的层调制单元,以输出最终信号。

    Method of preventing unauthenticated viewing using unique information of secure micro
    32.
    发明授权
    Method of preventing unauthenticated viewing using unique information of secure micro 有权
    使用安全微型的独特信息来防止未认证的观看的方法

    公开(公告)号:US08694773B2

    公开(公告)日:2014-04-08

    申请号:US12546859

    申请日:2009-08-25

    IPC分类号: H04L9/32 H04L29/06 H04N21/45

    摘要: A method of verifying a validity of a Secure Micro (SM) is provided. The method of verifying a validity of an SM, the method including: storing and maintaining a validity verification message used to verify the validity of the SM, the validity verification message being generated by a Trusted Authority (TA) based on unique information of the SM, and the SM and the TA sharing the unique information of the SM; and verifying the validity of the SM using the validity verification message and the unique information shared by the SM, when an SM client is executed.

    摘要翻译: 提供了一种验证安全Micro(SM)的有效性的方法。 验证SM的有效性的方法,该方法包括:存储和维护用于验证SM的有效性的有效性验证消息,该有效性验证消息是由可信管理机构(TA)根据SM的唯一信息生成的 ,SM和TA共享SM的独特信息; 并且当执行SM客户端时,使用有效性验证消息和SM共享的唯一信息来验证SM的有效性。

    Method and apparatus for mutual authentication in downloadable conditional access system
    33.
    发明授权
    Method and apparatus for mutual authentication in downloadable conditional access system 有权
    用于可下载条件访问系统中相互认证的方法和装置

    公开(公告)号:US08621218B2

    公开(公告)日:2013-12-31

    申请号:US12330729

    申请日:2008-12-09

    IPC分类号: H04L9/32 G06F7/04

    摘要: Disclosed is a mutual authentication method and apparatus in a CAS including a headend system and DCAS host. In particular, example embodiments relate to a mutual authentication method and apparatus in DCAS, wherein the mutual authentication is performed between an authentication server of the headend system and an SM of a DCAS host, and then CAS software is downloaded to the SM. According to the example embodiments, there is provided a mutual authentication protocol between the authentication server of the headend and the SM of the DCAS host in a cable network, and also provided a mutual authentication method and apparatus in the DCAS where a substantial authentication based on a hardware, such as a smart card or a cable card, is not needed.

    摘要翻译: 公开了一种包括前端系统和DCAS主机的CAS中的相互认证方法和装置。 特别地,示例性实施例涉及DCAS中的相互认证方法和装置,其中在头端系统的认证服务器和DCAS主机的SM之间执行相互认证,然后将CAS软件下载到SM。 根据示例性实施例,在有线网络中提供前端的认证服务器和DCAS主机的SM之间的相互认证协议,并且还提供了在DCAS中的相互认证方法和装置,其中基于 不需要诸如智能卡或有线卡的硬件。

    Method and apparatus for detecting downloadable conditional access system host with duplicated secure micro
    34.
    发明授权
    Method and apparatus for detecting downloadable conditional access system host with duplicated secure micro 有权
    用于检测具有重复安全微处理器的可下载条件访问系统主机的方法和装置

    公开(公告)号:US08490155B2

    公开(公告)日:2013-07-16

    申请号:US12256599

    申请日:2008-10-23

    IPC分类号: G06F7/04 G06F17/30 G06F15/16

    CPC分类号: G06F21/554

    摘要: A method where a Downloadable Conditional Access System Provisioning Server (DPS) detects a duplicated secure micro is provided. A method of detecting a duplicated secure micro, the method including: generating authentication time difference information associated with a value of a difference between a time when a host is finally authenticated in a first address and a time when the host is authenticated in a second address; comparing the authentication time difference information with a first reference value and a second reference value, the second reference value being less than the first reference value; and determining whether the secure micro is duplicated based on a result of the comparing.

    摘要翻译: 提供了可下载条件访问系统供应服务器(DPS)检测到重复的安全微服务器的方法。 一种检测重复的安全微机的方法,所述方法包括:生成与主机在第一地址中最终被认证的时间与主机在第二地址中认证的时间之间的差的值相关联的认证时差信息 ; 将所述认证时间差信息与第一参考值和第二参考值进行比较,所述第二参考值小于所述第一参考值; 以及基于所述比较的结果来确定所述安全微数据是否被复制。

    Method and apparatus of scheduling bandwidth in cable network
    35.
    发明授权
    Method and apparatus of scheduling bandwidth in cable network 有权
    有线网络带宽调度方法及装置

    公开(公告)号:US08098685B2

    公开(公告)日:2012-01-17

    申请号:US12540705

    申请日:2009-08-13

    IPC分类号: H04J3/22

    CPC分类号: H04L12/2801

    摘要: Disclosed are a method and apparatus of scheduling a bandwidth in a cable network. The method includes receiving variable information set according to a condition of a network, calculating a packet time slot value in which a delay time gain is maximized using the received variable information; setting an algorithm allocating a bandwidth between channels of the network using the packet time slot value, and operating a Cable Modem Termination System (CMTS) according to the algorithm.

    摘要翻译: 公开了一种在有线网络中调度带宽的方法和装置。 该方法包括根据网络的条件接收可变信息集,使用接收的可变信息计算延迟时间增益最大化的分组时隙值; 设置使用分组时隙值在网络的信道之间分配带宽的算法,以及根据该算法操作有线调制解调器终端系统(CMTS)。

    Method and apparatus for allocating upstream channel resource in hybrid fiber coaxial network
    36.
    发明授权
    Method and apparatus for allocating upstream channel resource in hybrid fiber coaxial network 有权
    用于在混合光纤同轴网络中分配上行信道资源的方法和装置

    公开(公告)号:US08040911B2

    公开(公告)日:2011-10-18

    申请号:US12198990

    申请日:2008-08-27

    IPC分类号: H04L12/28

    摘要: A method and apparatus for allocating upstream channel resources in a hybrid fiber coaxial (HFC) network are provided. A cable modem termination system (CMTS) previously provides cable modems (CMs) with a plurality of burst profiles through an extended interval usage code (IUC) of an upstream channel descriptor (UCD) message, and allocates resources to CMs by using an optimized burst profile according to an upstream channel status, thereby increasing transmission efficiency of an upstream channel.

    摘要翻译: 提供了一种用于在混合光纤同轴(HFC)网络中分配上行信道资源的方法和装置。 电缆调制解调器终端系统(CMTS)先前通过上行信道描述符(UCD)消息的扩展间隔使用码(IUC)向多个突发配置文件提供电缆调制解调器(CM),并且通过使用优化的突发 根据上行信道状态,从而提高上行信道的传输效率。

    Multi-channel tuning receiver and multi-channel tuning method thereof
    37.
    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 for classifying downstream packet in cable modem termination system at head-end supporting channel bonding mode, and cable modem termination system
    38.
    发明授权
    Method for classifying downstream packet in cable modem termination system at head-end supporting channel bonding mode, and cable modem termination system 失效
    电缆调制解调器终端系统中的下行分组在前端支持信道绑定模式下进行分类的方法,以及电缆调制解调器终端系统

    公开(公告)号:US07912050B2

    公开(公告)日:2011-03-22

    申请号:US11944192

    申请日:2007-11-21

    IPC分类号: H04L12/28

    摘要: Provided is a method for classifying packets in a cable modem termination system (CMTS) supporting a channel bonding mode. The method includes the steps of: extracting a destination Media Access Control (MAC) address of a received data packet; acquiring a MAC address of a cable modem receiving the data packet, and memory address information of a cable modem Classifier Identifier (CLID) corresponding to the MAC address of the cable modem, from a first classification table corresponding to the destination address; extracting the CLID information present in the memory address; extracting a classifier pattern corresponding to the extracted cable modem CLID information; bonding the MAC address of the cable modem and the classifier pattern to generate a result pattern; extracting a memory address including downstream service flow information from a second classification table corresponding to the result pattern; extracting the downstream service flow information corresponding to the memory address; and generating an output packet corresponding to the downstream service flow information and the data packet.

    摘要翻译: 提供了一种用于对支持信道绑定模式的电缆调制解调器终端系统(CMTS)中的分组进行分类的方法。 该方法包括以下步骤:提取接收到的数据分组的目的地媒体访问控制(MAC)地址; 从对应于目的地地址的第一分类表获取接收数据分组的有线调制解调器的MAC地址和与电缆调制解调器的MAC地址对应的电缆调制解调器分类标识符(CLID)的存储器地址信息; 提取存储在地址中的CLID信息; 提取与所提取的电缆调制解调器CLID信息相对应的分类器模式; 绑定电缆调制解调器的MAC地址和分类器模式以生成结果模式; 从对应于结果模式的第二分类表提取包括下游服务流信息的存储器地址; 提取与存储器地址对应的下游业务流信息; 生成对应于下游业务流信息和数据分组的输出分组。

    RECURSIVE DEMODULATION APPARATUS AND METHOD
    39.
    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。