公开(公告)号：WO2010067929A2

公开(公告)日：2010-06-17

申请号：PCT/KR2009002532

申请日：2009-05-13

Applicant: KOREA ELECTRONICS TELECOMM ,  PARK JEE HYUN ,  KIM JUNG HYUN ,  LEE JUNG SOO ,  JEONG YEON JEONG ,  NAM DO-WON ,  YOON KISONG

Inventor： PARK JEE HYUN ,  KIM JUNG HYUN ,  LEE JUNG SOO ,  JEONG YEON JEONG ,  NAM DO-WON ,  YOON KISONG

IPC: H04L9/08 ,  H04L29/06

CPC classification number: H04L9/0822 ,  H04L9/0825 ,  H04L9/0836 ,  H04L9/0891 ,  H04L12/185 ,  H04L63/065

Abstract: A group key management method for secure multicast communication includes: creating a tree having a root node, internal nodes and leaf nodes to manage group keys of a receiver group by a group key management server; generating user keys of all nodes excluding the root node in the tree on the basis of Chinese Remainder Theorem; assigning the leaf nodes of the tree to users of the receiver group; and sending the user keys of the leaf nodes to the corresponding users for group key management. Further, the group key management method for secure multicast communication includes generating group keys of all non-leaf nodes; computing a solution of congruence equations based on the user key and group key by using Chinese Remainder Theorem for each non-leaf node; and multicasting a group key update message to each user of the respective leaf nodes.

Abstract translation: 用于安全组播通信的组密钥管理方法包括：创建具有根节点，内部节点和叶节点的树，以通过组密钥管理服务器管理接收者组的组密钥; 根据中国剩余定理生成树中除根节点之外的所有节点的用户密钥; 将树的叶节点分配给接收者组的用户; 并将叶节点的用户密钥发送给相应的用户进行组密钥管理。 此外，用于安全组播通信的组密钥管理方法包括生成所有非叶节点的组密钥; 通过对每个非叶节点使用中国剩余定理，基于用户密钥和群密钥计算一致等式的解; 以及将组密钥更新消息多播到各个叶节点的每个用户。

公开(公告)号：WO2009078636A3

公开(公告)日：2009-10-22

申请号：PCT/KR2008007403

申请日：2008-12-15

Applicant: KOREA ELECTRONICS TELECOMM ,  PARK JEE HYUN ,  LEE JUNG SOO ,  KIM JUNG HYUN ,  JEONG YEON JEONG ,  NAM DO-WON ,  YOON KISONG

Inventor： PARK JEE HYUN ,  LEE JUNG SOO ,  KIM JUNG HYUN ,  JEONG YEON JEONG ,  NAM DO-WON ,  YOON KISONG

IPC: G06F17/00 ,  G06Q30/06

CPC classification number: H04N21/835 ,  G06Q30/0601 ,  H04L63/0428 ,  H04L2463/101 ,  H04N7/173 ,  H04N21/2541 ,  H04N21/4627 ,  H04N21/4788 ,  H04N21/8355

Abstract: an apparatus for protecting contents streamed through re-transmission, includes a content service site for servicing a content, managing end user and re-sender re-transmitting the content streamed from the content service site to another user, and issuing and managing a re-transmission license and a content license. The end user pays a charge to the content service site, receives an issued license from the content service site, and uses the content received from the re-sender through re-transmission.

Abstract translation: 一种用于保护通过重传流传输的内容的装置，包括用于对内容进行服务的内容服务站点，管理终端用户和重新发送者将从内容服务站点流传输的内容重新发送到另一用户， 传输许可证和内容许可证。 最终用户向内容服务站点支付费用，从内容服务站点接收已发放的许可证，并通过重传使用从重发送者接收到的内容。

公开(公告)号：WO2012050379A2

公开(公告)日：2012-04-19

申请号：PCT/KR2011007633

申请日：2011-10-13

Applicant: KOREA ELECTRONICS TELECOMM ,  YOON YOUNG SUK ,  PARK JEE HYUN ,  LEE SANG KWANG ,  KIM JUNG HYUN ,  SUH YOUNG HO ,  SEO YONG SEOK ,  LEE SEUNG JAE ,  KIM SUNG MIN ,  LEE JUNG HO ,  YOO WON YOUNG

Inventor： YOON YOUNG SUK ,  PARK JEE HYUN ,  LEE SANG KWANG ,  KIM JUNG HYUN ,  SUH YOUNG HO ,  SEO YONG SEOK ,  LEE SEUNG JAE ,  KIM SUNG MIN ,  LEE JUNG HO ,  YOO WON YOUNG

IPC: G06F21/24

CPC classification number: G06F21/105

Abstract: Disclosed are a method for extracting a fingerprint of a publication, an apparatus for extracting a fingerprint of a publication, a system for identifying a publication using a fingerprint, and a method for identifying a publication using a fingerprint which can easily identify copyright infringement and can effectively protect copyrights. The system for identifying the publication using the fingerprint includes: a fingerprint extraction unit for extracting fingerprints for collected query publications to identify the copyright infringement; a fingerprint query unit for querying fingerprints of original publications corresponding to the fingerprints for the query publications provided from the fingerprint extraction unit; a DBMS for storing the fingerprints extracted from the original publications and additional information from the original publications, and providing a search result candidate group which is composed of fingerprints of at least one of the original publications corresponding to the queries of the fingerprint query unit; and a candidate group verification unit for determining copyright infringement for the query publications by verifying the search result candidate group provided from the DBMS. Consequently, the present invention can easily identify copyright infringement for the publications and can thereby prevent copyright infringement.

Abstract translation: 公开了一种用于提取出版物的指纹的方法，用于提取出版物的指纹的设备，用于使用指纹识别出版物的系统，以及用于使用容易识别版权侵权的指纹来识别出版物的方法，并且能够 有效保护版权。 利用指纹识别出版物的系统包括：指纹提取单元，用于为收集的查询出版物提取指纹以识别侵犯版权; 指纹查询单元，用于查询与指纹提取单元提供的查询出版物的指纹对应的原始出版物的指纹; DBMS，用于存储从原始出版物提取的指纹和来自原始出版物的附加信息，并提供由与指纹查询单元的查询相对应的至少一个原始出版物的指纹组成的搜索结果候选组; 以及候选组验证单元，用于通过验证从DBMS提供的搜索结果候选组来确定查询出版物的版权侵犯。 因此，本发明可以容易地识别出版物的版权侵权并且由此可以防止侵犯版权。

公开(公告)号：KR20100117831A

公开(公告)日：2010-11-04

申请号：KR20090036496

申请日：2009-04-27

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： BAHNG SEUNG JAE ,  KIM JUNG HYUN ,  LEE HOON ,  PARK YOUN OK

IPC: H04B7/08 ,  H04L27/26

CPC classification number: H04L27/02

Abstract: PURPOSE: A method for detecting signal, a device for detecting signal and a receiving device are provided to execute signal detection in a low complexity. CONSTITUTION: Candidate vector generating units(261,262) decide a first candidate vector about a first layer of the transmission signal group in consideration of all constellation points. The candidate vector generating units decide a second candidate vector about the second layer of the transmission signal group in consideration of all constellation points. The candidate vector generating units generates a final candidate vector including the first candidate vector and the second candidate vector. A soft decision value generating unit(270) produces the soft decision value using the final candidate vector.

Abstract translation: 目的：提供一种用于检测信号的方法，用于检测信号的装置和接收装置，以低复杂度执行信号检测。 构成：考虑所有星座点，候选向量生成单元（261,262）决定关于发送信号组的第一层的第一候选向量。 考虑到所有星座点，候选矢量生成单元决定关于发送信号组的第二层的第二候选矢量。 候选矢量生成单元生成包括第一候选矢量和第二候选矢量的最终候选矢量。 软判决值生成单元（270）使用最终候选向量产生软判决值。

公开(公告)号：KR20070105273A

公开(公告)日：2007-10-30

申请号：KR20070040233

申请日：2007-04-25

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM JUN IL ,  NAM DO WON ,  LEE JUNG SOO ,  JEONG YEON JEONG ,  PARK JEE HYUN ,  KIM JUNG HYUN ,  YOON KI SONG

IPC: G06F17/00 ,  G06F15/00

CPC classification number: G06F21/10 ,  H04L29/06027 ,  H04L63/0428 ,  H04L65/4076 ,  H04L65/605 ,  H04L2463/101

Abstract: A device and a method for changing a DRM algorithm of streaming data are provided to enable various DRM client terminals to use a streaming service encoded through various DRMs freely by changing the DRM algorithm stored in the streaming data into a different DRM algorithm if necessary. A plurality of parsers with an N-level receive and parse the streaming data. The plurality of packetizers with the N-level generate the streaming data by packetizing the parsed streaming data. A decoder decodes the data encoded by the n-th level parser among the N parsers according to a first DRM algorithm by connecting to the n-th parser. An encoder encodes the decoded data according to a second DRM algorithm by connecting to the m-th level packetizer among the N packetizers. A path manager manages a path based on m and n to enable the streaming data to be parsed/packetized by the minimum number of parsers and packetizers.

Abstract translation: 提供了一种用于改变流数据的DRM算法的装置和方法，以使各种DRM客户机终端可以通过将存储在流数据中的DRM算法改变成不同的DRM算法来自由地使用通过各种DRM编码的流服务。 具有N级的多个解析器接收并解析流数据。 具有N级的多个打包器通过分解解析的流数据来生成流数据。 解码器通过连接到第n个解析器，根据第一DRM算法来解码由N个解析器中的第n级解析器编码的数据。 编码器根据第二DRM算法，通过连接到N个打包器中的第m级分类器来对编码的数据进行编码。 路径管理器管理基于m和n的路径，以使流数据由解析器和打包器的最小数量进行解析/打包。

公开(公告)号：KR20120064548A

公开(公告)日：2012-06-19

申请号：KR20100125826

申请日：2010-12-09

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE SANG KWANG ,  PARK JEE HYUN ,  YOON YOUNG SUK ,  YOO WON YOUNG ,  SEO YONG SEOK ,  SUH YOUNG HO ,  LEE SEUNG JAE ,  KIM JUNG HYUN ,  KIM SUNG MIN ,  LEE JUNG HO

IPC: G06F21/24

CPC classification number: H04L9/32 ,  G06T1/0021 ,  G10L19/018 ,  H04L2209/603 ,  H04L2209/608 ,  H04N1/32304 ,  H04N1/3232 ,  H04N1/32331 ,  H04N21/8358 ,  H04N2201/3235 ,  H04N2201/3239

Abstract: PURPOSE: Apparatus and method for copyright protection of digital contents are provided to watermarks CCL information included in concerned contents to the digital contents, and to insert watermark capable of detecting the transformation of the contents into the digital contents. CONSTITUTION: Apparatus and method for copyright protection of digital contents comprises: a CCL(Creative Commons License) watermark applying unit(110) watermarking CCL information and digital contents provided together based on the CCL information; a transformation preventing watermark applying unit(120) inserting a watermark for detecting the transformation of the contents into the digital contents; a watermark management unit(130) issuing the CCL watermark and the watermark for detecting the transformation.

Abstract translation: 目的：提供数字内容的版权保护的装置和方法，以将包含在有关内容中的CCL信息提供给数字内容，并且将能够检测内容的变换的水印插入到数字内容中。 构成：数字内容的版权保护的装置和方法，包括：基于CCL信息一起提供CCL信息和数字内容的CCL（知识共享许可证）水印应用单元（110）进行水印; 变换防止水印应用单元（120）插入用于检测内容变换成数字内容的水印; 发布CCL水印的水印管理单元（130）和用于检测变换的水印。

公开(公告)号：KR20100116056A

公开(公告)日：2010-10-29

申请号：KR20090034780

申请日：2009-04-21

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： LEE SEUNG JAE ,  LEE JUNG HO ,  YOO WON YOUNG ,  SEO YONG SEOK ,  LEE SANG KWANG ,  YOON YOUNG SUK ,  SUH YOUNG HO ,  PARK JEE HYUN ,  NAM DO WON ,  SHIM KWANG HYUN ,  KIM SUNG MIN ,  KIM JUNG HYUN ,  LEE GIL HAENG ,  LEE YOUNG JIK

IPC: G06F17/30 ,  G06F17/00

CPC classification number: G06F17/30029 ,  G06F17/30283 ,  H04L2463/101

Abstract: PURPOSE: A distributed filtering apparatus and a method for the copyright protection of digital content are provided to be able to filter content depending on priority in a copyright search of the digital content. CONSTITUTION: A priority work node unit(304) selectively filters content with a copyright using plural priority work node databases. In case the content copyright existence is not determined in the priority work node unit, by using a plurality of the databases for the general work node, a general work node unit(306) selectively filters the content with copyright using plural general work node databases. A search server(302) controls a selective filter using the priority work node unit and the general work node unit according to the priority search regulation.

Abstract translation: 目的：提供一种用于数字内容的版权保护的分布式过滤装置和方法，以便能够根据数字内容的版权搜索中的优先级来过滤内容。 构成：优先工作节点单元（304）使用多个优先级工作节点数据库选择性地过滤具有版权的内容。 在优先工作节点单元中没有确定内容版权存在的情况下，通过使用多个用于一般工作节点的数据库，一般工作节点单元（306）使用多个通用工作节点数据库选择性地过滤具有版权的内容。 搜索服务器（302）根据优先级搜索规则使用优先级工作节点单元和一般工作节点单元来控制选择性过滤器。