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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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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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Patent Agency Ranking
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-
公开(公告)号：KR1020100061260A
公开(公告)日：2010-06-07
申请号：KR1020090013034
申请日：2009-02-17
Applicant: 한국전자통신연구원
CPC classification number: H04L25/0258 , G06F17/142 , H04L27/01 , H04N7/08
Abstract: PURPOSE: An apparatus and a method for estimating and equalizing a channel are provided to improve data receiving performance by performing the channel estimation and equalization with the size information of a received signal from a digital multimedia broadcasting system. CONSTITUTION: A first extraction module extracts the size information from a received signal(S310). A channel estimation module estimates a transmission channel with the filtering of the extracted size information(S320). An equalization module equalizes the extracted size information based on the estimated channel(S330). A second extraction module extracts an enhancement layer signal based on in the equalization signal of the equalization module. The second extraction module transmits the enhancement layer signal to the frequency deinterleaver(S340).
Abstract translation: 目的：提供一种用于估计和均衡信道的装置和方法，以通过利用来自数字多媒体广播系统的接收信号的大小信息执行信道估计和均衡来提高数据接收性能。 构成：第一提取模块从接收信号中提取尺寸信息（S310）。 信道估计模块通过对所提取的尺寸信息进行滤波来估计传输信道（S320）。 均衡模块基于所估计的信道来均衡所提取的尺寸信息（S330）。 第二提取模块基于均衡模块的均衡信号提取增强层信号。 第二提取模块将增强层信号发送到频率去交织器（S340）。
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公开(公告)号：KR1020100058169A
公开(公告)日：2010-06-03
申请号：KR1020080116889
申请日：2008-11-24
Applicant: 한국전자통신연구원
IPC: H04L12/24
CPC classification number: H04L12/2801
Abstract: PURPOSE: A method and an apparatus for scheduling a bandwidth in a cable network are provided to increase the opportunity of a piggyback band request by arranging segment frames at a proper interval when allocating a band. CONSTITUTION: An operation unit(120) calculates a packet time interval value which maximizes a delayed time gain through received variable information, and a setup unit(130) sets up an algorithm for an Inter-channel band allocation of the network through the packet time interval value. A management unit(140) manages a CMTS(Cable Modem Termination System) according to the algorithm. IF a decision unit(160) judges the change of network, a control unit receives the variable information changed a receiving unit(110) again.
Abstract translation: 目的：提供一种用于在有线网络中调度带宽的方法和装置，用于通过在分配频带时以适当的间隔布置分段帧来增加搭载频带请求的机会。 构成：操作单元（120）计算通过接收到的可变信息使延迟时间增益最大化的分组时间间隔值，并且设置单元（130）通过分组时间建立网络的信道间频带分配的算法 间隔值。 管理单元（140）根据该算法管理CMTS（有线调制解调器终端系统）。 如果判定单元（160）判断网络的变化，则控制单元再次接收改变了接收单元（110）的变量信息。
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