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    • 32. 发明公开
    • 한시적으로 CA 디지털 방송을 제공하는 방법
    • 临时提供条件可访问数字广播的方法
    • KR1020070062755A
    • 2007-06-18
    • KR1020050122521
    • 2005-12-13
    • 엘지전자 주식회사
    • 조영섭
    • H04N21/266
    • H04H60/14H04H60/15H04H2201/11H04H2201/20
    • A method for temporarily providing a CA(Conditional Access) digital broadcast is provided to enable an enterpriser to induce a digital broadcasting user to subscribe for a pay broadcasting service, and to enable the digital broadcasting user to easily decide whether to subscribe to the pay broadcasting service by allowing the digital broadcasting user to enjoy the pay broadcasting service for a while. A transmission frame in which information is recorded wherein the information allows a user unqualified for receiving a CA digital broadcast to receive and use the CA digital broadcast for a limited time. The information is recorded in an expansion field 3 of an FIG(Fast Information Group) type 0 in the transmission frame if the information corresponds to a service component of a packet mode. The information is recorded in an expansion field 4 of the FIG type 0 in the transmission frame if the information corresponds to a service component of a stream mode or an FIC(Fast Information Channel).
    • 提供一种临时提供CA(有条件访问)数字广播的方法,以使企业家能够诱使数字广播用户订阅付费广播业务,并使得数字广播用户能够容易地决定是否订阅付费广播 通过允许数字广播用户享受付费广播服务一段时间的服务。 其中记录信息的传输帧,其中信息允许用户不合格地接收CA数字广播以在有限的时间内接收和使用CA数字广播。 如果信息对应于分组模式的服务分量,则信息被记录在传输帧中的类型0的图(快速信息组)的扩展字段3中。 如果信息对应于流模式或FIC(快速信息信道)的服务分量,则信息被记录在传输帧中的图类型0的扩展字段4中。
    • 33. 发明公开
    • 지상파 DMB 서비스용 제한수신 장치 및 그 방법
    • 用于条件接收DMB服务的装置和方法
    • KR1020070056592A
    • 2007-06-04
    • KR1020050115486
    • 2005-11-30
    • 한국전자통신연구원
    • 이진환이용훈안충현이수인
    • H04N5/913H04N7/167H04N5/44
    • H04H60/15H04H20/06
    • An apparatus and a method for conditional access of a terrestrial DMB(Digital Multimedia Broadcasting) service are provided to supply a conditional access service in a shared scrambling manner by receiving ensemble data where many programs are hierarchically mixed, selecting a certain program and scrambling the ensemble data in a manner suitable for a hierarchy of the selected program. An ensemble data analyzing part(311) extracts ensemble configuration information by analyzing external ensemble data to which conditional access is not applied, and hierarchically manages program data. A control word generating part(313) generates a control word. A scrambler(314) scrambles a certain program from the ensemble data analyzing part by using the control word. A conditional access data encoding part(321) receives information of a subscriber and a program, the ensemble configuration information and the control word and encodes conditional access data. An ensemble data multiplexing part(315) generates ensemble data by multiplexing scrambled certain program data, unscrambled program data, fast information group data and the conditional access data and modifying a parameter necessary for the conditional access.
    • 提供用于地面DMB(数字多媒体广播)服务的条件访问的装置和方法,以通过接收多个节目分层混合的集合数据以共享加扰方式提供条件接入服务,选择某个节目并加扰集合 数据以适合所选程序的层级的方式。 综合数据分析部分(311)通过分析不应用条件访问的外部集合数据并分级地管理程序数据来提取集合配置信息。 控制字生成部(313)生成控制字。 加扰器(314)通过使用控制字对来自集合数据分析部分的某个程序进行加扰。 条件访问数据编码部分(321)接收订阅者和节目的信息,集体配置信息和控制字,并对条件访问数据进行编码。 综合数据复用部分(315)通过对加扰的特定程序数据,未加扰的程序数据,快速信息组数据和条件访问数据进行复用来产生整体数据,并修改条件访问所必需的参数。
    • 34. 发明公开
    • 유료 이동형 방송 서비스를 위한 데이터 구조, 방법 및이동형 방송 수신기
    • 充电式移动式广播数据结构与方法及移动式广播接收机
    • KR1020060132373A
    • 2006-12-21
    • KR1020050052673
    • 2005-06-17
    • 엘지전자 주식회사
    • 곽국연전정식고우석신종웅문상철
    • H04N7/00H04N7/08H04N21/83
    • H04H20/57H03M13/2732H03M13/2924H04B7/066H04H60/15H04H60/23H04H2201/11H04N21/41407
    • A data structure and a method for a charged mobile-type broadcasting service, and a mobile-type broadcasting receiver are provided to retransmit a DMB service after changing a frame structure when retransmitting the DMB(Digital Multimedia Broadcasting) service, received in a charged gap filler, thereby providing a service of high quality to paid service subscribers even in a dead zone without disturbing free service users. A data structure for a charged mobile-type broadcasting service comprises the followings: an SYNC(Synchronization Channel) where a KRS(Key Reference Symbol), a PRS(Phase Reference Symbol) encrypted on the basis of the KRS, and a null symbol are located in order; and an MSC(Main Service Channel) where service data is actually transmitted. Configuration information of a data channel, transmitted from the MSC, is transmitted in an FIC(Fast Information Channel). The FIC is composed between the SYNC and the MSC.
    • 提供一种用于充电的移动式广播业务的数据结构和方法,以及一种移动式广播接收机,用于在重新传送以带电间隙收到的DMB(数字多媒体广播)业务时改变帧结构之后,重发一个DMB业务 从而即使在死区也能向付费服务用户提供高质量的服务,而不打扰免费服务用户。 一种带电移动型广播服务的数据结构包括:基于KRS加密的KRS(密钥参考符号),PRS(相位参考符号)和空符号的SYNC(同步信道) 位于顺序; 和实际发送业务数据的MSC(主业务信道)。 从MSC发送的数据信道的配置信息在FIC(快速信息信道)中发送。 FIC由SYNC和MSC组成。
    • 35. 发明公开
    • 브로드 캐스트 암호화 시스템에서의 태그 형성방법
    • 在广播加密系统中制作标签的方法
    • KR1020060110729A
    • 2006-10-25
    • KR1020050117724
    • 2005-12-05
    • 삼성전자주식회사
    • 진원일성맹희김대엽김환준
    • H04L9/32H04L9/30H04L9/08
    • H04H60/15H04L9/321H04L2209/601
    • A method for making a tag in a broadcast encryption system is provided to greatly reduce an amount of transmission of a server in a BE(Broadcast Encryption) system according to the reduction of tag size. A method for making a tag in a broadcast encryption system includes the steps of: detecting at least one excluded leaf node; setting a node ID as a node pass ID in a zero layer of the leaf node, wherein the node ID is provided to at least one node to which at least one excluded leaf node belongs among the nodes having the node IDs constructing the zero layer; forming a tag list of the zero layer by connecting at least one node pass ID in order of increasing the node ID of the corresponding leaf node; and forming a tag list of the last layer by performing the second step up to the last layer repeatedly.
    • 提供一种在广播加密系统中制作标签的方法,以根据标签大小的减小大大减少BE(广播加密)系统中的服务器的传输量。 在广播加密系统中制作标签的方法包括以下步骤:检测至少一个排除的叶节点; 将节点ID设置为叶节点的零层中的节点传递ID,其中,所述节点ID被提供给具有构成零层的节点ID的节点中至少一个排除叶节点所属的至少一个节点; 通过以增加相应叶节点的节点ID的顺序连接至少一个节点传送ID来形成零层的标签列表; 并且通过重复地执行直到最后一层的第二步来形成最后层的标签列表。
    • 38. 发明公开
    • 디지털 멀티미디어 방송 제한 수신 시스템 및 그 방법
    • 在接收不良区域接收数字多媒体广播的系统和方法
    • KR1020050016722A
    • 2005-02-21
    • KR1020050001236
    • 2005-01-06
    • 삼성전자주식회사
    • 유훈
    • H04N21/266H04N21/2543H04N21/4405
    • H04H60/15H04H20/06H04H60/23
    • PURPOSE: A system and a method for receiving digital multimedia broadcasting limitatively are provided to resolve the poor reception and charge fees for the digital multimedia broadcasting subscribers in the poor reception area by installing a repeater in the area. CONSTITUTION: A system for receiving digital multimedia broadcasting limitatively includes first and second communication networks(610,620), and mobile communication terminals(110-130) for playing digital multimedia broadcasting. Repeaters(410-440) scramble transmission streams received from a digital multimedia broadcasting transmission tower(500) to transmit the same to the mobile communication terminals. A server(300) provides keys for scrambling to the repeaters via the first communication network and to the mobile communication terminals via the second communication network.
    • 目的:提供限制接收数字多媒体广播的系统和方法,以通过在该区域安装中继器来解决不良接收区域中的数字多媒体广播用户的不良接收和收费。 构成:用于接收数字多媒体广播的系统限制地包括用于播放数字多媒体广播的第一和第二通信网络(610,620)和移动通信终端(110-130)。 中继器(410-440)对从数字多媒体广播传输塔(500)接收的传输流进行加扰,将其发送到移动通信终端。 服务器(300)通过第一通信网络向移动通信终端经由第二通信网络提供用于加扰中继器的密钥。
    • 39. 发明公开
    • 셋톱박스로 전달되는 지역정보를 우편번호를 이용하여 계층적으로 필터링하는 방법
    • 用于选择性地将使用ZIP代码传输到数字电视机顶盒的区域信息进行过滤的方法
    • KR1020050004303A
    • 2005-01-12
    • KR1020030042532
    • 2003-06-27
    • 주식회사 알티캐스트
    • 이진호
    • G06Q50/00
    • H04H60/15H04H60/17H04H60/27H04H2201/70
    • PURPOSE: A method for selectively filtering regional information transferred to a set-top box for a digital TV with a zip code is provided to enable a user to easily and selectively receive the received regional information by filtering the regional information received to the set-top box with the zip code. CONSTITUTION: It is checked that the information received to the set-top box(1) is related to a specified region. In case of the information related to the specified region, an object region is extracted from the information. It is checked that the object region is matched with the zip code stored in a memory(102) of the set-top box. Only the matched information is processed/stored in a storage device(103) of the set-top box.
    • 目的:提供一种用于选择性过滤传送到具有邮政编码的数字电视的机顶盒的区域信息的方法,以使用户能够通过过滤接收到机顶盒的区域信息来容易地和选择性地接收接收到的区域信息 盒子与邮政编码。 规定:检查接收到机顶盒(1)的信息是否与指定区域相关。 在与指定区域相关的信息的情况下,从信息中提取对象区域。 检查对象区域是否与存储在机顶盒的存储器(102)中的邮政编码相匹配。 只有匹配的信息被处理/存储在机顶盒的存储设备(103)中。
    • 40. 发明公开
    • 복수의 운용자들로부터 스크램블된 신호들을 수신하기위한 소형 저가 시스템
    • 低成本紧凑系统用于接收来自多个操作员的屏蔽信号
    • KR1020020070124A
    • 2002-09-05
    • KR1020020010167
    • 2002-02-26
    • 엔엑스피 비 브이
    • 베누허브
    • H04N21/4405
    • H04N21/4181H04H60/15H04H60/23H04N7/163H04N21/4405H04N21/8193
    • PURPOSE: A compact and low-cost system for receiving scrambled signals from plural operators is provided to cut down expenses of the system, and to prevent program contents from being copied without authorization by receiving program from different operators. CONSTITUTION: A system for receiving encoded and scrambled data signals(DS) comprises a decoder(DEC), an output device(DISP) equipped with a unit to generate output stimuli on the basis of output signals(OS) from the decoder, a descrambling unit(DES) for descrambling the data signals activated by an enabling signal(ES), and an enabling unit(EN) intended to receive protected information from an operator and supply the enabling signal. The user receives programs originating from different operators at low cost, and the system restricts the contents of programs from being copied without authorization.
    • 目的:提供一种用于从多个操作员接收加扰信号的紧凑且低成本的系统,以减少系统的费用,并且通过接收来自不同运营商的程序的授权来​​防止程序内容被复制。 构成:用于接收编码和加扰数据信号(DS)的系统包括解码器(DEC),配备有基于来自解码器的输出信号(OS)产生输出刺激的单元的输出设备(DISP),解扰 单元(DES),用于解扰由启用信号(ES)激活的数据信号;以及使能单元(EN),用于从操作者接收受保护的信息并提供使能信号。 用户以低成本接收源自不同运营商的节目,系统限制节目内容未经授权复制。