公开(公告)号：US08949595B2

公开(公告)日：2015-02-03

申请号：US12643054

申请日：2009-12-21

Applicant: Eun Jung Kwon ,  Han Seung Koo ,  Soon Choul Kim ,  Heejeong Kim ,  Young Ho Jeong ,  O Hyung Kwon ,  Soo In Lee

Inventor： Eun Jung Kwon ,  Han Seung Koo ,  Soon Choul Kim ,  Heejeong Kim ,  Young Ho Jeong ,  O Hyung Kwon ,  Soo In Lee

IPC: H04L29/06 ,  H04L9/32 ,  H04L9/08

CPC classification number: H04L9/3273 ,  H04L9/083 ,  H04L9/0877 ,  H04L9/321 ,  H04L63/0442 ,  H04L63/0869 ,  H04L63/123 ,  H04L63/166 ,  H04L2209/56 ,  H04L2209/603

Abstract: A mutual authentication method in a Downloadable Conditional Access System (DCAS) is provided. The mutual authentication method may receive authentication-related information about authentication between an authentication unit and a security module (SM) from a Trusted Authority (TA), generate an authentication session key using the authentication-related information, transmit the authentication session key by the authentication unit to the SM through a Cable Modem Termination System (CMTS), and control a Conditional Access System (CAS) software to be downloaded to the SM from the authentication unit, when the authentication is completed by the authentication session key.

Abstract translation: 提供了可下载条件访问系统（DCAS）中的相互认证方法。 相互认证方法可以从可信授权（TA）接收认证单元和安全模块（SM）之间的认证的认证相关信息，使用认证相关信息生成认证会话密钥，通过认证相关信息发送认证会话密钥 通过有线调制解调器终端系统（CMTS）向SM发送认证单元，并且当通过认证会话密钥完成认证时，控制从认证单元下载到SM的条件访问系统（CAS）软件。

公开(公告)号：US08826356B2

公开(公告)日：2014-09-02

申请号：US12181434

申请日：2008-07-29

Applicant: Yong Seong Cho ,  Seung Eun Hong ,  TaeKyoon Kim ,  O Hyung Kwon ,  Soo In Lee

Inventor： Yong Seong Cho ,  Seung Eun Hong ,  TaeKyoon Kim ,  O Hyung Kwon ,  Soo In Lee

IPC: H04N7/173 ,  H04L12/42

CPC classification number: H04L12/2801

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08743897B2

公开(公告)日：2014-06-03

申请号：US13149075

申请日：2011-05-31

Applicant: Ho-Sook Lee ,  O Hyung Kwon ,  Soo In Lee

Inventor： Ho-Sook Lee ,  O Hyung Kwon ,  Soo In Lee

IPC: H04H20/71 ,  H04L12/28 ,  H04J3/26

CPC classification number: H04L12/2801

Abstract: The processing of a multicast service flow for a headend cable modem by classifying an inputted multicast packet by a session composing an internal header including multicast service flow information allocated to the classified session and then outputting an internal multicast packet including the internal header.

Abstract translation: 通过构成包括分配给分类的会话的多播服务流信息的内部头部的会话分类输入的多播分组，然后输出包括内部头部的内部多播分组来处理头端电缆调制解调器的组播服务流。

公开(公告)号：US08533458B2

公开(公告)日：2013-09-10

申请号：US12246663

申请日：2008-10-07

Applicant: Young Ho Jeong ,  Soon Choul Kim ,  Heejeong Kim ,  Eun Jung Kwon ,  Han Seung Koo ,  O Hyung Kwon ,  Soo In Lee

Inventor： Young Ho Jeong ,  Soon Choul Kim ,  Heejeong Kim ,  Eun Jung Kwon ,  Han Seung Koo ,  O Hyung Kwon ,  Soo In Lee

IPC: H04L29/06

CPC classification number: H04L9/321 ,  G06F21/33 ,  H04L9/083 ,  H04L9/3273 ,  H04L2209/76 ,  H04N7/1675 ,  H04N21/2541 ,  H04N21/42623 ,  H04N21/63345 ,  H04N21/8193 ,  H04N21/835

Abstract: A method of operating a headend system for a downloadable conditional access service, the method including: receiving, by an Authentication Proxy (AP) server, basic authentication information from a Downloadable Conditional Access System (DCAS) host, the basic authentication information being required to authenticate the DCAS host; transmitting, by the AP server, the basic authentication information to an external trusted authority device which authenticates the DCAS host; generating, by the AP server, a session key for encrypting/decrypting a secure micro client using a session key sharing factor; obtaining, by the AP server, download-related information of the secure micro client from a DCAS Provisioning Server (DPS); and commanding, by the AP server, an Integrated Personalization System (IPS) server to download the secure micro client to the DCAS host based on the download-related information, the secure micro client being encrypted by the session key.

Abstract translation: 一种操作用于可下载条件访问服务的头端系统的方法，所述方法包括：由认证代理（AP）服务器从可下载条件访问系统（DCAS）主机接收基本认证信息，所述基本认证信息需要 验证DCAS主机; 由AP服务器将基本认证信息发送给认证DCAS主机的外部可信管理设备; 由AP服务器生成用于使用会话密钥共享因子加密/解密安全微客户端的会话密钥; 由AP服务器从DCAS配给服务器（DPS）获取安全微客户端的下载相关信息; 并且由AP服务器命令集成个性化系统（IPS）服务器，以便基于下载相关信息将安全微客户端下载到DCAS主机，安全微客户端被会话密钥加密。

公开(公告)号：US08190887B2

公开(公告)日：2012-05-29

申请号：US12190661

申请日：2008-08-13

Applicant: Han Seung Koo ,  O Hyung Kwon ,  Yun Jeong Song ,  Soo In Lee

Inventor： Han Seung Koo ,  O Hyung Kwon ,  Yun Jeong Song ,  Soo In Lee

IPC: G06F11/30

CPC classification number: H04L63/065 ,  H04L12/2861

Abstract: 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.

Abstract translation: 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）。

公开(公告)号：US07983147B2

公开(公告)日：2011-07-19

申请号：US12182206

申请日：2008-07-30

Applicant: Hye Ju Oh ,  O Hyung Kwon ,  Soo In Lee

Inventor： Hye Ju Oh ,  O Hyung Kwon ,  Soo In Lee

IPC: G01R31/08 ,  G06F11/00 ,  H04J1/16 ,  H04J3/02 ,  H04L12/28 ,  H04N7/173 ,  H04B1/38

CPC classification number: H04L12/2801 ,  H04L41/0806 ,  H04L41/082 ,  H04L41/0856

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07944964B2

公开(公告)日：2011-05-17

申请号：US11634495

申请日：2006-12-06

Applicant: Jae-Ho Lee ,  O-Hyung Kwon ,  Soo-In Lee

Inventor： Jae-Ho Lee ,  O-Hyung Kwon ,  Soo-In Lee

IPC: H03H7/30

CPC classification number: H04L25/0307 ,  H04L2025/0349 ,  H04L2025/0363 ,  H04L2025/03656 ,  H04L2025/03687 ,  H04L2025/037

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07933322B2

公开(公告)日：2011-04-26

申请号：US11635721

申请日：2006-12-07

Applicant: Eun-Seok Jin ,  O-Hyung Kwon ,  Soo-In Lee

Inventor： Eun-Seok Jin ,  O-Hyung Kwon ,  Soo-In Lee

IPC: H04B3/46

CPC classification number: H04B3/462 ,  H04H40/18 ,  H04L7/0004 ,  H04L7/033

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07848247B2

公开(公告)日：2010-12-07

申请号：US11520942

申请日：2006-09-13

Applicant: Eun-Jung Kwon ,  Joon-Young Jung ,  O-Hyung Kwon ,  Soo-In Lee

Inventor： Eun-Jung Kwon ,  Joon-Young Jung ,  O-Hyung Kwon ,  Soo-In Lee

IPC: H04N7/173

CPC classification number: H04L12/2801

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100241858A1

公开(公告)日：2010-09-23

申请号：US12724988

申请日：2010-03-16

Applicant: HAN-SEUNG KOO ,  EUN-JUNG KWON ,  SOON-CHOUL KIM ,  HEE-JEONG KIM ,  YOUNG-HO JEONG ,  O-HYUNG KWON ,  SOO-IN LEE

Inventor： HAN-SEUNG KOO ,  EUN-JUNG KWON ,  SOON-CHOUL KIM ,  HEE-JEONG KIM ,  YOUNG-HO JEONG ,  O-HYUNG KWON ,  SOO-IN LEE

IPC: H04L9/32

CPC classification number: H04L9/3242 ,  H04L9/0822 ,  H04L9/083 ,  H04L9/0866 ,  H04L9/0869 ,  H04L9/3271 ,  H04L2209/60 ,  H04N21/4351 ,  H04N21/4627 ,  H04N21/8166 ,  H04N21/835

Abstract: A downloadable conditional access system (DCAS), a secure micro (SM), and a transport processor (TP), and a security authentication method using the same are provided. The DCAS provides a safe security environment through a security protocol which enables mutual authentication and secure channel establishment between the SM and the TP.

Abstract translation: 提供了可下载条件访问系统（DCAS），安全微型（SM）和传输处理器（TP）以及使用其的安全认证方法。 DCAS通过安全协议提供了一个安全的安全环境，可以在SM和TP之间实现相互认证和安全的信道建立。