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公开(公告)号：KR101072213B1
公开(公告)日：2011-10-10
申请号：KR1020080127929
申请日：2008-12-16
Applicant: 한국전자통신연구원
IPC: H04N21/235 , H04N21/435 , H04N7/10
Abstract: 사용자단말에대한단말식별정보에기초하여인증번호생성하고, 상기단말식별정보에기초하여데이터베이스로부터추출된상기사용자단말에대한적어도하나의단말정보를기초로상기사용자단말에대한클라이언트이미지데이터를생성및 암호화하여캐루젤(Carousel) 데이터객체로구성한후 상기사용자단말로복수의캐루젤데이터객체들을캐루젤방식으로전송하면, 상기사용자단말은상기복수의캐루젤데이터객체들중에서상기캐루젤데이터객체를추출하여상기암호화된클라이언트이미지데이터를복호화하는 DCAS 기반암호화객체전송시스템이개시된다.
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公开(公告)号：KR1020110110055A
公开(公告)日：2011-10-06
申请号：KR1020110029793
申请日：2011-03-31
Applicant: 한국전자통신연구원
IPC: H04N7/167
CPC classification number: H04N7/1675 , H04N21/23617 , H04N21/4181 , H04N21/4383 , H04N21/4433 , H04N21/4627 , H04N21/8193
Abstract: 본 발명은, 방송 또는 통신 채널별로 서로 다른 보안 클라이어트를 원격 설치 및 갱신하는 방법 및 장치에 관한 것이다.
본 발명의 일 실시예에 따른 제한 수신 시스템에서 단말이 채널별로 서로 다른 보안 클라이언트를 설치하는 방법은, 상기 단말에서 검색 가능한 하나 이상의 채널을 검색하는 단계; 상기 검색된 채널별로, 상기 검색된 채널을 통해 전송되는 유료 프로그램의 수신을 위해 필요한 보안 클라이언트를 상기 검색된 채널을 담당하는 방송국에 요청하는 단계; 및 상기 검색된 채널별로, 상기 요청된 보안 클라이언트를 상기 방송국으로부터 다운로드하여 설치하는 단계를 포함한다.-
123.发明公开
公开(公告)号：KR1020110070685A
公开(公告)日：2011-06-24
申请号：KR1020100032295
申请日：2010-04-08
Applicant: 한국전자통신연구원
IPC: H04L27/26
CPC classification number: H04L27/2628
Abstract: PURPOSE: An orthogonal frequency division multiplex transmission apparatus for variable bandwidth transmission in an HFC net and a transmission method thereof are provided to change the bandwidth by controlling the number of inverse fast Fourier transform modules. CONSTITUTION: A serial to parallel converter(321) parallelizes a plurality of serial symbols. The serial to parallel converter receives a signal modulated from a modulator(310). An M×K point inverse fast Fourier transformer(324) comprises MK-point inverse fast Fourier transform modules(325_1~325_M). A parallel-serial converter(327) receives output signals of the MxK point inverse fast Fourier transformers. A bandwidth controller(329) controls mapping bandwidth of a sub-carrier mapping part(320).
Abstract translation: 目的：提供一种HFC网可变带宽传输的正交频分复用传输装置及其传输方法，通过控制快速傅里叶逆变换模块的数量来改变带宽。 构成：串行到并行转换器（321）并行化多个串行符号。 串行到并行转换器接收从调制器（310）调制的信号。 M×K点快速傅里叶逆变换器（324）包括MK点快速傅里叶变换模块（325_1〜325_M）。 并行串行转换器（327）接收MxK点快速傅里叶逆变换器的输出信号。 带宽控制器（329）控制副载波映射部分（320）的映射带宽。
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公开(公告)号：KR1020110043390A
公开(公告)日：2011-04-27
申请号：KR1020090128501
申请日：2009-12-21
Applicant: 한국전자통신연구원
IPC: H04L29/02
CPC classification number: H04L12/2898
Abstract: PURPOSE: A method for quickly adjusting an upstream power level in a DOCSIS cable modem is provided to effectively control an uplink channel power level during an initialization process of DOCSIS 3.0, thereby efficiently communicating the cable modem with a cable modem terminal system. CONSTITUTION: A cable modem receives an MDD(Mac Domain Descriptor) message after a SYNC message. The MDD message is divided into several messages(402) using TLV encoding information(403). The MDD message is transmitted from the cable modem terminal system to the cable modem. Information about upstream transmit power reporting(413) is defined in the TLV encoding information. A power level value is defined in an SSAP field of a management message header(401) during a ranging request message transmitting process.
Abstract translation: 目的：提供一种用于在DOCSIS电缆调制解调器中快速调整上游功率电平的方法，以在DOCSIS 3.0的初始化过程中有效地控制上行链路信道功率电平，从而有效地将电缆调制解调器与电缆调制解调器终端系统进行通信。 构成：电缆调制解调器在SYNC消息后接收到MDD（Mac域描述符）消息。 使用TLV编码信息（403）将MDD消息分成几个消息（402）。 MDD消息从电缆调制解调器终端系统传输到电缆调制解调器。 关于上行发射功率报告的信息（413）在TLV编码信息中定义。 在测距请求消息发送处理期间，在管理消息报头（401）的SSAP字段中定义功率电平值。
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公开(公告)号：KR1020110031660A
公开(公告)日：2011-03-29
申请号：KR1020090089002
申请日：2009-09-21
Applicant: 한국전자통신연구원
IPC: H04N7/167
CPC classification number: H04N21/26613 , H04L63/0823 , H04N21/4181 , H04N21/4623 , H04N21/6334 , H04N21/8166
Abstract: PURPOSE: A downloadable conditional access system by using distributed trusted authority, and an operating method of the same are provided to distribute SM(Secure Micro) at a central authentication authority and a distributed trusted authority. CONSTITUTION: A central trusted authority server(110) generates a certification and distributes the certification. A distributed trusted authority server(120) receives a certificate from the central trusted authority server. The distributed trusted authority server performs authentication about the DCAS(Downloadable Conditional Access System) host terminal which attempts a connection to the MSO(Multiple System Operator) server. The authenticated DCAS host terminal can access the MSO server.
Abstract translation: 目的：通过使用分布式可信权限的可下载条件访问系统，并提供其操作方法，以在中央认证机构和分布式可信授权机构上分发SM（Secure Micro）。 构成：中央信任机构服务器（110）生成认证并分发认证。 分布式可信授权服务器（120）从中央可信权限服务器接收证书。 分布式可信授权服务器对尝试连接到MSO（多系统操作员）服务器的DCAS（可下载条件访问系统）主机终端进行认证。 认证的DCAS主机终端可以访问MSO服务器。
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Patent Agency Ranking
公开(公告)号：KR1020100072909A
公开(公告)日：2010-07-01
申请号：KR1020080131455
申请日：2008-12-22
Applicant: 한국전자통신연구원
IPC: H04N21/6334 , H04L9/32
CPC classification number: H04L9/3273 , H04L9/083 , H04L9/0877 , H04L9/321 , H04L63/0442 , H04L63/0869 , H04L63/123 , H04L63/166 , H04L2209/56 , H04L2209/603
Abstract: PURPOSE: A method and an apparatus for mutual authentication in a downloadable conditional access system are provided to defend each kind of attach resulting from a security threat when downloading a CAS software by securing the safety in key generation, message authentication and so on. CONSTITUTION: A DCAS(Downloadable Conditional Access System) comprises an authentication unit(110), a key management unit(130) and a download unit(140). The authentication unit transmits an authentication session key to a security module(200) through a CMTS(Cable Modem Termination System)(120). The key management unit generates and manages an authentication session key, and the download unit downloads and updates a CAS(Conditional Access System) software through the control of the security module.
Abstract translation: 目的：提供一种可下载条件访问系统中相互认证的方法和装置，用于通过确保密钥生成，消息认证等方面的安全性来保护下载CAS软件时由安全威胁引起的各种附件。 构成：DCAS（可下载条件访问系统）包括认证单元（110），密钥管理单元（130）和下载单元（140）。 认证单元通过CMTS（电缆调制解调器终端系统）（120）将认证会话密钥发送到安全模块（200）。 密钥管理单元生成和管理认证会话密钥，下载单元通过对安全模块的控制来下载和更新CAS（条件访问系统）软件。
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公开(公告)号：KR1020100072592A
公开(公告)日：2010-07-01
申请号：KR1020080131038
申请日：2008-12-22
Applicant: 한국전자통신연구원
CPC classification number: H04L12/2801
Abstract: PURPOSE: A channel bandwidth allocation device and a method thereof are provided to allocate uplink bandwidth capable of being processed in real time in a CMTS by using the uplink channel transport format defined in the DOCSIS 3.0 standard. CONSTITUTION: An information sorter unit(710) sorts in line the band allocation request information according to the priority. The information sorter unit transfers the sorted band allocation request information to a mini slot allocation unit. An operation unit(720) transmits the band allocation request information to the mini slot allocation unit(730) by applying Multiplier to number of bytes in case of the band allocation request information corresponding to the byte based band allocation request information. The mini slot allocation unit assigns the mini slot by referring to the band allocation request information and set up information.
Abstract translation: 目的：提供一种信道带宽分配装置及其方法，用于通过使用DOCSIS 3.0标准中定义的上行链路信道传输格式，在CMTS中分配能够实时处理的上行链路带宽。 构成：信息分类单元（710）根据优先级对频带分配请求信息进行排序。 信息分类单元将分类的频带分配请求信息传送到小时隙分配单元。 操作单元（720）在与基于字节的频带分配请求信息相对应的频带分配请求信息的情况下，通过将乘数应用于字节数来将频带分配请求信息发送到小时隙分配单元（730）。 迷你时隙分配单元通过参照频带分配请求信息和建立信息来分配小时隙。
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公开(公告)号：KR1020100071640A
公开(公告)日：2010-06-29
申请号：KR1020080130430
申请日：2008-12-19
Applicant: 한국전자통신연구원
IPC: H04N21/258 , H04H60/37 , H04N21/441
CPC classification number: H04N21/25891 , H04H60/372 , H04N21/25875 , H04N21/441
Abstract: PURPOSE: A broadcasting contents distribution-controlling method and a system are provided to offer the broadcasting contents to the discriminated terminal it is offered. CONSTITUTION: In the broadcasting contents which the information lead portion(110) is received from the broadcasting server, the program setting information is a lead taken. The contents controller(120) distinguish the terminal corresponding to the read program setting information as described above. The contents controller offers the received broadcasting contents as described above to the identified terminal.
Abstract translation: 目的：提供广播内容分发控制方法和系统，以向所提供的被鉴别终端提供广播内容。 构成：在从广播服务器接收到信息引导部分（110）的广播内容中，节目设置信息是引导。 如上所述，内容控制器（120）区分与读取的节目设置信息对应的终端。 内容控制器将所接收的广播内容提供给所识别的终端。
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公开(公告)号：KR1020100071489A
公开(公告)日：2010-06-29
申请号：KR1020080130223
申请日：2008-12-19
Applicant: 한국전자통신연구원
IPC: H04N7/10 , H04N21/2385
CPC classification number: H04N21/2385 , H04N5/445 , H04N21/6118 , H04N21/6408 , H04N21/64322
Abstract: PURPOSE: A cable network system for providing an IPTV service and a method for controlling a cable network system are provided to shorten channel change time, thereby efficiently providing an IPTV service. CONSTITUTION: A DSID(Downstream Service IDentifier) list maintaining device(410) maintains a DSID list about a broadcast signal received from a cable headend. A broadcast signal confirming device(420) receives an IGMP(Internet Group Management Protocol) join message from an IPTV STB(Set-Top Box). The broadcast signal confirming device confirms the first broadcast signal related to the IGMP join message at the DSID list. A broadcast signal providing apparatus(430) provides the first broadcast signal to the IPTV STB.
Abstract translation: 目的：提供一种用于提供IPTV服务的有线网络系统和一种用于控制有线网络系统的方法，以缩短信道改变时间，从而有效提供IPTV业务。 构成：DSID（下游服务标识符）列表维护设备（410）维护关于从有线头端接收的广播信号的DSID列表。 广播信号确认装置（420）从IPTV STB（机顶盒）接收IGMP（因特网组管理协议）加入消息。 广播信号确认装置在DSID列表中确认与IGMP加入消息相关的第一广播信号。 广播信号提供装置（430）向IPTV STB提供第一广播信号。
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公开(公告)号：KR1020100069292A
公开(公告)日：2010-06-24
申请号：KR1020080127941
申请日：2008-12-16
Applicant: 한국전자통신연구원
IPC: H04N21/25
CPC classification number: H04N21/2668 , H04N21/232 , H04N21/25866
Abstract: PURPOSE: A channel map providing method and a system thereof are provided to offer broadcasting contents according to the channel map by constituting a customized channel map based on the property of space where a terminal is installed and an audience object. CONSTITUTION: An audience object determining part(120) determines an audience object in a space where a terminal is installed. A channel map forming part(130) constitutes the channel map in consideration of the audience object. A channel map providing part(140) provides the broadcasting contents according to the channel map to the terminal by being connected to a watching request. The audience object determining part confirms the use of the space and estimates the audience object located in the space based on the identified use.
Abstract translation: 目的：提供一种频道映射提供方法及其系统，其基于通过安装终端的空间的属性和观众对象，构成根据频道映射的广播内容。 构成：观众对象确定部分（120）确定安装终端的空间中的观众对象。 考虑观众对象，频道映射形成部分（130）构成频道映射。 频道映射提供部分（140）通过连接到观看请求将根据频道映射的广播内容提供给终端。 观众对象确定部分确认空间的使用，并基于所识别的用途估计位于空间中的观众对象。
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