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公开(公告)号：KR1020100105322A
公开(公告)日：2010-09-29
申请号：KR1020090089104
申请日：2009-09-21
Applicant: 한국전자통신연구원
CPC classification number: H04L9/3234 , H04L9/0643 , H04L9/085 , H04L9/0866 , H04L9/0869 , H04L9/0877 , H04L9/3273 , H04L2209/60
Abstract: PURPOSE: A DCAS, SM, TP and a method for certificating security are provided to form a safe security environment by using a security protocol module in which mutual authentication and a security channel between a security module and a transmission process module are formed. CONSTITUTION: A security module fairing part transmit a key request message including security module(44-44n) and a transmission process module(46-46n). The security module fairing part receives a key response message including an encoding seed key from a head end. The secure module key generating unit transmits the contents encryption key based on the encoding seed key to the transmittal module. The secure module key generating unit receives the contents encryption key of the transport module. The security module encryption unit compares the contents encryption key with the contents encryption key.
Abstract translation: 目的：提供DCAS，SM，TP和安全认证方法，通过使用形成安全模块和传输过程模块之间的相互认证和安全通道的安全协议模块形成安全的安全环境。 构成：安全模块整流装置发送包括安全模块（44-44n）和传输处理模块（46-46n）的密钥请求消息。 安全模块整流器部分从头端接收包括编码种子密钥的密钥响应消息。 安全模块密钥生成单元将基于编码种子密钥的内容加密密钥发送到传送模块。 安全模块密钥生成单元接收传输模块的内容加密密钥。 安全模块加密单元将内容加密密钥与内容加密密钥进行比较。
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公开(公告)号：KR1020100072595A
公开(公告)日：2010-07-01
申请号：KR1020080131041
申请日：2008-12-22
Applicant: 한국전자통신연구원
CPC classification number: H04N21/6402 , H04N21/23605 , H04N21/2543 , H04N21/6118 , H04N21/64322
Abstract: PURPOSE: An apparatus and a method for providing an IPTV service by using DSID over a cable network are provided to use DOCSIS streamer transmitting IPTV contents through downlink channel by usage of the DSID thereby efficiently using frequency resources. CONSTITUTION: A DOCSIS(Data-Over-Cable Interface Specification) streamer(115) receives IPTV(Internet Protocol Television) contents and allocation information about IPTV contents from the IPTV contents servers(101a,101b,119) and a CMTS(Cable Modem Termination System)(121). The DOCSIS streamer generates DOCSIS packet. If a transmission bandwidth allocation request is received from the CMTS, a resource manager(117) assigns transmission band of downlink channel for transmitting the DOCSIS packet to a cable modem(143).
Abstract translation: 目的：提供一种通过使用DSID通过有线网络提供IPTV服务的装置和方法，以通过DSID的使用通过下行链路信道来发送IPTV内容的DOCSIS流水线从而有效地使用频率资源。 规定：DOCSIS（数据电缆接口规范）流分送器（115）从IPTV内容服务器（101a，101b，119）和CMTS（电缆调制解调器终端）接收IPTV（因特网协议电视）内容和关于IPTV内容的分配信息 系统）（121）。 DOCSIS流分录器生成DOCSIS数据包。 如果从CMTS接收到传输带宽分配请求，则资源管理器（117）将用于发送DOCSIS分组的下行链路信道的传输频带分配给有线调制解调器（143）。
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公开(公告)号：KR1020100072477A
公开(公告)日：2010-07-01
申请号：KR1020080130897
申请日：2008-12-22
Applicant: 한국전자통신연구원
CPC classification number: H04L63/0815 , H04L63/126 , H04N21/26613 , H04N21/63345 , H04N21/63775
Abstract: PURPOSE: An apparatus and a method for authenticating a terminal in a DCAS(Downloadable Conditional Access System) are provided to supply information through a channel which enables a security, integrity and message authentication. CONSTITUTION: A first receiving unit(410) receives terminal authentication information from a user terminal, and a judgment unit(420) judges based on a database whether or not the terminal authentication information is valid. If the terminal authentication information is valid, a first transmission unit(430) transmits pairing information on the terminal authentication and DCAS image information to the user terminal. The database stores the ID information on the terminal authentication of the user terminals from an authorized ID issuing agency.
Abstract translation: 目的：提供一种用于认证DCAS（可下载条件接入系统）中的终端的装置和方法，以通过能够进行安全性，完整性和消息认证的信道来提供信息。 构成：第一接收单元（410）从用户终端接收终端认证信息，判断单元（420）根据数据库判断终端认证信息是否有效。 如果终端认证信息有效，则第一发送部（430）向用户终端发送关于终端认证和DCAS图像信息的配对信息。 数据库从授权ID发行机构存储关于用户终端的终端认证的ID信息。
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公开(公告)号：KR1020100072451A
公开(公告)日：2010-07-01
申请号：KR1020080130864
申请日：2008-12-22
Applicant: 한국전자통신연구원
CPC classification number: H03M13/1515 , H04N19/188 , H04N19/89
Abstract: PURPOSE: A method and an apparatus for having variable error correction capability are provided to use stuff field of an MPEG-2 transport stream for error correction, thereby providing Reed-Solomon encoder of the various error correction capability without expansion of hardware. CONSTITUTION: A transmission error correction device(400) comprises a packet receiving unit(401), a field confirmation unit(402) and error correction processor(403). The packet receiving unit receives a packet of a TS(Transport Stream) from a broadcasting system. The field confirmation unit confirms stuff field from received packet. Based on the confirmed stuff field, the error correction processor corrects an error of broadcasting contents.
Abstract translation: 目的：提供一种具有可变纠错能力的方法和装置，以使用MPEG-2传输流的填充字段进行纠错，从而在不扩展硬件的情况下提供各种纠错能力的Reed-Solomon编码器。 构成：传输纠错装置（400）包括分组接收单元（401），场确认单元（402）和纠错处理器（403）。 分组接收单元从广播系统接收TS（传输流）的分组。 字段确认单元从接收到的分组确认填充字段。 基于确认的填充字段，纠错处理器校正广播内容的错误。
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公开(公告)号：KR1020100071815A
公开(公告)日：2010-06-29
申请号：KR1020080130656
申请日：2008-12-19
Applicant: 한국전자통신연구원
IPC: H04N21/236 , H04N21/434 , H04N13/00
CPC classification number: H04N21/435 , H04H20/30 , H04H20/40 , H04H60/07 , H04N13/10 , H04N13/172 , H04N13/194 , H04N19/37 , H04N19/46 , H04N19/597 , H04N19/61 , H04N21/21 , H04N21/23 , H04N21/234327 , H04N21/235 , H04N21/236 , H04N21/23614 , H04N21/2365 , H04N21/434 , H04N21/4347 , H04N21/816
Abstract: PURPOSE: A system and a method for transmitting/receiving a non real time 3D broadcast are provided to transmit additional 3D data including a 3D sub image and information for the 3D sub image in non real time. CONSTITUTION: A non real time broadcast server(303) generates a non real time service information table including information required for receiving and restoring a 3D sub image and information for the receiving and restoring the 3D image by a transport stream. A media encoder(301) generates a 2D image by a transport stream of a fixed bit rate based on the bit rate of a 3D sub image transport stream. An ensemble multiplexer(305) multiplexes a 2D image transport stream, a 3D sub image transport stream, and a non real time service information table transport stream in a fixed sub channel.
Abstract translation: 目的：提供用于发送/接收非实时3D广播的系统和方法，用于以非实时的方式发送包括3D子图像的附加3D数据和3D子图像的信息。 构成：非实时广播服务器（303）生成包括用于接收和恢复3D子图像所需的信息的非实时服务信息表以及用于通过传输流接收和恢复3D图像的信息。 媒体编码器（301）基于3D子图像传输流的比特率，通过固定比特率的传输流生成2D图像。 整体多路复用器（305）在固定子信道中复用2D图像传输流，3D子图像传输流和非实时服务信息表传输流。
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Patent Agency Ranking
公开(公告)号：KR1020100071643A
公开(公告)日：2010-06-29
申请号：KR1020080130433
申请日：2008-12-19
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A cable modem upstream transmitter and a method for transmitting signal of the same are provided to support DOCSIS 3.0 standard for the cable modem by transmitting data to a hybrid fiber coax network. CONSTITUTION: A plurality of modulating modules(121 to 124) modulates data, which is transmitted to a plurality of upstream channels from a media access control, into the digital signal of each baseband. A plurality of converting modules(131 to 134) converts the digital signal of each baseband into the analog signal of each baseband. An RF module(140) converts the analog signal into the frequency signal a high frequency band. The RF module transmit each RF signal to a hybrid fiber coax network. Power amplifier modules amplifies the power of the analog signal.
Abstract translation: 目的：提供电缆调制解调器上行发送器及其发送信号的方法，通过向混合光纤同轴电缆网络发送数据来支持电缆调制解调器的DOCSIS 3.0标准。 构成：多个调制模块（121至124）将从媒体访问控制发送到多个上行信道的数据调制成每个基带的数字信号。 多个转换模块（131至134）将每个基带的数字信号转换成每个基带的模拟信号。 RF模块（140）将模拟信号转换成频率信号为高频带。 RF模块将每个RF信号发送到混合光纤同轴电缆网络。 功率放大器模块放大模拟信号的功率。
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公开(公告)号：KR1020100066725A
公开(公告)日：2010-06-18
申请号：KR1020080125151
申请日：2008-12-10
Applicant: 한국전자통신연구원
CPC classification number: G06F21/6218 , G06F21/33 , G06F2221/2151 , H04L63/062 , H04L63/0823 , H04L63/0884
Abstract: PURPOSE: A method of controlling download load of a secure module client in a downloadable conditional access system are provided to analyze version information about security modules and version information about security module clients and determines download policy, thereby enhancing stability of DCAS network. CONSTITUTION: An AP(Authentication Proxy) server(330) provides version information about security module of a DCAS(Downloadable Conditional Access System) host and version information about security module client to DPS(DCAS Provisioning Server)(340). The DPS analyze version information of the security module and version information of a security module client. The PDS determines download policy related to downloading timings of security module clients for security modules. The DPS provides information related to the determined download policy to the AP server.
Abstract translation: 目的：提供一种在可下载条件访问系统中控制安全模块客户端的下载负载的方法，以分析有关安全模块的版本信息和有关安全模块客户端的版本信息，并确定下载策略，从而提高DCAS网络的稳定性。 规定：AP（认证代理）服务器（330）提供有关DCAS（可下载条件访问系统）主机的安全模块的版本信息以及有关安全模块客户端到DPS（DCAS Provisioning Server）的版本信息（340）。 DPS分析安全模块的版本信息和安全模块客户端的版本信息。 PDS确定与安全模块的安全模块客户端的下载时序相关的下载策略。 DPS向AP服务器提供与确定的下载策略相关的信息。
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公开(公告)号：KR1020100066293A
公开(公告)日：2010-06-17
申请号：KR1020090031523
申请日：2009-04-10
Applicant: 한국전자통신연구원
IPC: H04N7/088 , H04N21/431 , H04B1/00
CPC classification number: H04N7/173 , H04N21/47214 , H04N21/488
Abstract: PURPOSE: An apparatus and a method for supplying information connected with the newspaper media are provided to supply news related information with broadcasting program information and newspaper information on newspaper. CONSTITUTION: A recognizing unit(540) recognizes news link information capable of containing the news information and electronic programming guide. A controller(550) extracts the electronic programming guide from the acknowledged news link information. The controller operates a wireless unit(520) and a modem. A memory stores the electronic programming guide. A display unit offers the extracted electronic programming guide to the form in which the user recognizes.
Abstract translation: 目的：提供一种用于提供与报纸媒体相关的信息的设备和方法，以便在报纸上提供有关广播节目信息和报纸信息的新闻相关信息。 构成：识别单元（540）识别能够包含新闻信息和电子节目指南的新闻链接信息。 控制器（550）从确认的新闻链接信息中提取电子节目指南。 控制器操作无线单元（520）和调制解调器。 存储器存储电子节目指南。 显示单元将提取的电子节目指南提供给用户识别的形式。
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公开(公告)号：KR100963038B1
公开(公告)日：2010-06-10
申请号：KR1020070123893
申请日：2007-11-30
Applicant: 한국전자통신연구원
Abstract: 주파수 옵셋, 위상 옵셋을 보상하는 케이블 모뎀의 동작 방법이 개시된다. 케이블 모뎀의 동작 방법은 케이블 네트워크를 통하여 동일한 패턴의 시퀀스를 갖는 복수의 중복 구간들을 포함하는 프리앰블을 포함하는 입력 신호를 수신하는 단계, 상기 중복 구간들 각각에 포함되는 상기 시퀀스의 동일성을 이용하여 주파수 옵셋을 추정하는 단계, 상기 중폭 신호들에 포함된 상기 시퀀스와 오리지날(original) 시퀀스를 비교하여 위상 옵셋을 추정하는 단계 및 추정된 상기 주파수 옵셋 및 상기 위상 옵셋에 따라 상기 입력 신호를 보상하는 단계를 포함한다.
주파수 옵셋, 위상 옵셋, 프리앰블, 페이로드, CAZAC 시퀀스, 케이블 모뎀-
公开(公告)号：KR100961442B1
公开(公告)日：2010-06-09
申请号：KR1020070115869
申请日：2007-11-14
Applicant: 한국전자통신연구원
IPC: H04L9/08
CPC classification number: G06F21/6218 , G06F21/604 , G06F2221/2117 , G06F2221/2141 , G06F2221/2145 , H04L9/0836 , H04L9/0891 , H04L63/065 , H04L65/4076
Abstract: 본 발명은 멀티그룹 멀티캐스팅 서비스를 위한 키 그래프 구성 방법 및 그를 이용한 키 관리 방법에 관한 것으로서, 사용자 그룹과 리소스 간의 접근 자격 관계를 이용하여 키 그래프를 구성하되, 복수의 리소스에 대해 동일한 접근 권한을 갖는 복수의 사용자 그룹들을 중간노드를 통하여 해당 리소스에 연결함으로써, 사용자 그룹과 리소스 간의 접근 자격 관계의 중복성을 최소화하고, 또한 이로 인하여 제한 수신 시스템에서의 통신 비용 및 저장 비용을 현저히 줄이고자 한다.
이를 위하여, 본 발명은, 제한 수신 시스템에서 멀티그룹 멀티캐스팅 서비스를 위한 키 그래프 구성 방법에 있어서, 서비스 대상이 되는 리소스에서 복수의 리소스를 선택하여 구성한 각각의 리소스 조합에 대하여, 사용자 그룹과 리소스 간의 접근 자격 관계를 이용해 동일 접근권한을 가지면서도 다른 리소스 조합과는 중복성이 없는 사용자 그룹의 집합('공통그룹 집합')을 검색하는 공통그룹 검색 단계; 및 상기 접근 자격 관계를 이용하여 사용자 그룹 키와 리소스 키를 연결하여 키 그래프를 구성하되, 상기 검색된 공통그룹 집합에 속하는 사용자 그룹들은 중간노드를 통하여 해당 리소스에 연결하는 키그래프 구성 단계를 포함한다
IPTV, 제한 수신, CAS, 키 그래프, 키 갱신 메시지, 접근 자격 관계, 중간 노드
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