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    • 2. 发明授权
    • Cable modem and data receiving method thereof
    • 电缆调制解调器及其数据接收方法
    • US08826356B2
    • 2014-09-02
    • US12181434
    • 2008-07-29
    • Yong Seong ChoSeung Eun HongTaeKyoon KimO Hyung KwonSoo In Lee
    • Yong Seong ChoSeung Eun HongTaeKyoon KimO Hyung KwonSoo In Lee
    • H04N7/173H04L12/42
    • H04L12/2801
    • Disclosed are a cable modem and a data receiving method thereof. The cable modem includes a downlink channel retrieval processing unit to retrieve a downlink channel, receive an entire channel information message through the retrieved downlink channel, and receive a broadcasting supplementary data message when the entire information message is valid; a channel information processing unit to receive broadcasting supplementary data using the broadcasting supplementary data message; an uplink channel retrieval processing unit to retrieve an uplink channel using the entire channel information message; and a channel information managing unit to store and manage main data receiving channels capable of receiving the entire channel information message and the broadcasting supplementary data.
    • 公开了电缆调制解调器及其数据接收方法。 电缆调制解调器包括:下行链路信道检索处理单元,用于检索下行链路信道,通过所检索的下行链路信道接收整个信道信息消息;以及当整个信息消息有效时,接收广播补充数据消息; 频道信息处理单元,使用广播补充数据消息接收广播补充数据; 上行链路信道检索处理单元,用于使用整个信道信息消息来检索上行链路信道; 以及信道信息管理单元,用于存储和管理能够接收整个信道信息消息和广播补充数据的主数据接收信道。
    • 5. 发明授权
    • Cable network system and method for controlling security in cable network encrypted dynamic multicast session
    • 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
    • US08190887B2
    • 2012-05-29
    • US12190661
    • 2008-08-13
    • Han Seung KooO Hyung KwonYun Jeong SongSoo In Lee
    • Han Seung KooO Hyung KwonYun Jeong SongSoo In Lee
    • G06F11/30
    • H04L63/065H04L12/2861
    • 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.
    • 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)。
    • 6. 发明授权
    • Method of setting and changing receive channel set of cable modem
    • 电缆调制解调器接收通道组的设置和更改方法
    • US07983147B2
    • 2011-07-19
    • US12182206
    • 2008-07-30
    • Hye Ju OhO Hyung KwonSoo In Lee
    • Hye Ju OhO Hyung KwonSoo In Lee
    • G01R31/08G06F11/00H04J1/16H04J3/02H04L12/28H04N7/173H04B1/38
    • H04L12/2801H04L41/0806H04L41/082H04L41/0856
    • A method of effectively setting and changing a Receive Channel Set (RCS) of a cable modem (CM) is provided. The method includes: receiving, by a Cable Modem Termination System (CMTS), a Receive Channel Profile (RCP) with respect to a downstream physical layer of a CM; composing, by the CMTS, a plurality of channel configuration information required for setting the RCS of the CM with reference to the RCP; encoding, by the CMTS, the plurality of channel configuration information, and transmitting the encoded plurality of channel configuration information to the CM; transmitting, by the CM, an RCP with respect to a downstream physical layer to a CMTS; receiving, by the CM, a plurality of channel configuration information being composed with reference to the RCP and being required for setting the RCS; and setting, by the CM, the RCS using the plurality of channel configuration information.
    • 提供了一种有效地设置和改变电缆调制解调器(CM)的接收信道集(RCS)的方法。 该方法包括:通过有线调制解调器终端系统(CMTS)接收关于CM的下游物理层的接收信道简档(RCP); 由CMTS组成参照RCP设置CM的RCS所需的多个信道配置信息; 由CMTS编码多个信道配置信息,并将编码的多个信道配置信息发送给CM; 由CM向CMTS发送关于下游物理层的RCP; 通过CM接收多个信道配置信息,该信道配置信息参考RCP组合并且被要求用于设置RCS; 以及使用所述多个信道配置信息由所述CM设置所述RCS。
    • 7. 发明授权
    • Apparatus and method for stable DEF using selective FBF
    • 使用选择性FBF稳定DEF的装置和方法
    • US07944964B2
    • 2011-05-17
    • US11634495
    • 2006-12-06
    • Jae-Ho LeeO-Hyung KwonSoo-In Lee
    • Jae-Ho LeeO-Hyung KwonSoo-In Lee
    • H03H7/30
    • H04L25/0307H04L2025/0349H04L2025/0363H04L2025/03656H04L2025/03687H04L2025/037
    • A decision feedback equalizing apparatus selectively using a feedback filter and a method thereof are provided. The apparatus includes: an equalizing unit including a feed forward filter (FFF) for correcting a distorted transmission channel by receiving a match-filtered signal and a feedback filter (FBF) for reducing inter symbol interference ISI of the corrected transmission channel for driving only the FFF in a blind mode and driving the FFF and the FBF in a decision directed mode; a diverge/converge determining unit for determining whether the decision feedback equalizing apparatus is diverged or converged using a unit square error obtained through a least unit square algorithm; and a filter controlling unit for controlling the equalizing unit in a blind mode if the decision feedback equalizing apparatus is determined as divergence, and for controlling the equalizing unit in a decision directed mode if the decision feedback equalizing apparatus is determined as convergence.
    • 提供了选择性地使用反馈滤波器的判定反馈均衡装置及其方法。 该装置包括:均衡单元,包括用于通过接收匹配滤波信号来校正失真传输信道的前馈滤波器(FFF)和用于减少仅用于驱动的​​纠错传输信道的符号间干扰ISI的反馈滤波器(FBF) FFF处于盲模式,并以决策导向模式驱动FFF和FBF; 分散/收敛确定单元,用于使用通过最小单位平方算法获得的单位平方误差来确定判定反馈均衡装置是否发散或收敛; 以及滤波器控制单元,如果判定反馈均衡装置被确定为发散,则以盲模式控制均衡单元,并且如果判定反馈均衡装置被确定为收敛则用于以判决指导模式控制均衡单元。
    • 8. 发明授权
    • Timing lock detection apparatus and method for digital broadcasting receiver
    • 数字广播接收机定时锁定检测装置及方法
    • US07933322B2
    • 2011-04-26
    • US11635721
    • 2006-12-07
    • Eun-Seok JinO-Hyung KwonSoo-In Lee
    • Eun-Seok JinO-Hyung KwonSoo-In Lee
    • H04B3/46
    • H04B3/462H04H40/18H04L7/0004H04L7/033
    • A timing lock detection apparatus and method for digital broadcasting receiver are provided. The apparatus includes: a discrete value generator for cyclically selecting a discrete signal value from a continuous timing error signal; a differential calculator for obtaining a difference between the currently selected timing error signal value and a previously selected timing error signal that is a timing jitter signal; a sign variation detector for detecting variation in a sign of the timing jitter signal; a lock control signal generator for discriminating a period based on the detected sign changing time, and controlling a lock step of the loop filter according to a convergence mode of the timing jitter signal at each period; and a lock detection signal generator for generating a lock signal or an unlock signal according to whether the timing jitter signal reaches a steady state and using the current lock step signal.
    • 提供了一种用于数字广播接收机的定时锁定检测装置和方法。 该装置包括:离散值发生器,用于从连续定时误差信号周期性地选择离散信号值; 用于获得当前选择的定时误差信号值与作为定时抖动信号的先前选择的定时误差信号之间的差的差分计算器; 用于检测所述定时抖动信号的符号的变化的符号变化检测器; 锁定控制信号发生器,用于基于检测到的符号变化时间来识别周期,并且根据每个周期的定时抖动信号的收敛模式来控制环路滤波器的锁定步骤; 以及锁定检测信号发生器,用于根据定时抖动信号是否达到稳定状态并使用当前锁定步骤信号产生锁定信号或解锁信号。
    • 9. 发明授权
    • Service providing method based on service subscriber level on cable network
    • 基于有线网络业务用户级别的业务提供方法
    • US07848247B2
    • 2010-12-07
    • US11520942
    • 2006-09-13
    • Eun-Jung KwonJoon-Young JungO-Hyung KwonSoo-In Lee
    • Eun-Jung KwonJoon-Young JungO-Hyung KwonSoo-In Lee
    • H04N7/173
    • H04L12/2801
    • Provided is a method for providing a service based on a subscriber level. The method includes the steps of: a) initializing a Data Back-off Start (DBS) value and a Data Back-off End (DBE) value; b) acquiring subscriber information from an external management system; c) acquiring service flow identifier (SFID) and service identifier (SID) information from an object model for quality of service (QoS) based on information on Service Class Name (SCN) of the subscriber acquired in the step b); d) creating manufacturing automation protocol (MAP) according to a priority by grasping the SID information based on the service level and controlling the DBS value and the DBE value of a cable modem (CM); and e) transmitting the created MAP to the cable modem.
    • 提供了一种基于用户级提供服务的方法。 该方法包括以下步骤:a)初始化数据备份启动(DBS)值和数据退回结束(DBE)值; b)从外部管理系统获取用户信息; c)基于在步骤b)中获取的用户的服务类别名称(SCN)的信息,从服务质量(QoS)的对象模型获取服务流标识符(SFID)和服务标识符(SID)信息; d)通过基于服务级别掌握SID信息并控制电缆调制解调器(CM)的DBS值和DBE值,根据优先级创建制造自动化协议(MAP); 以及e)将所创建的MAP发送到电缆调制解调器。