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公开(公告)号：KR1020110071748A
公开(公告)日：2011-06-29
申请号：KR1020090128394
申请日：2009-12-21
Applicant: 한국전자통신연구원
IPC: H04N21/2347 , H04N21/4405 , G06Q50/10
CPC classification number: H04N21/2343 , H04N21/2347 , H04N21/2541 , H04N21/26613
Abstract: PURPOSE: A cinema contents processing device and method is provided to enable a user to experience the high-definition contents by using the media contents which is converted from the digital cinema contents. CONSTITUTION: A contents analyzer(100) extracts an encryption key, contents data and conversion media information and authority information from the cinema contents. A decoder(101) decodes the contents data based on the cryptographic key. A media generator(102) converts the decoded contents data based on the media information to be converted and generates the distributable media contents. A authority information processor(103) unites the authority information and the distributable media contents and generates the package media contents.
Abstract translation: 目的：提供一种电影内容处理装置和方法，以使用户能够通过使用从数字电影内容转换的媒体内容来体验高清内容。 内容分析器（100）从电影内容中提取加密密钥，内容数据和转换媒体信息以及授权信息。 解码器（101）根据加密密钥对内容数据进行解码。 媒体发生器（102）根据要转换的媒体信息转换解码的内容数据，并生成可分发的媒体内容。 权限信息处理器（103）将权限信息和可分发媒体内容相结合，并生成包媒体内容。
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公开(公告)号：KR1020100062827A
公开(公告)日：2010-06-10
申请号：KR1020090026453
申请日：2009-03-27
Applicant: 한국전자통신연구원
CPC classification number: G06F21/31 , G06F21/45 , G06F21/606 , G06F21/6209 , G06F21/78
Abstract: PURPOSE: An apparatus and a method for transforming DRM(Digital Rights Management) contents are provided to convert the DRM contents proper to the DRM format of a corresponding DRM device so that the converted DRM contents can be provided to a DRM device which authenticates a regal use right. CONSTITUTION: A data manager(220) encodes DRM contents, which is uploaded from an authenticated DRM device, by using an encryption key, and manages and stores the encoded DRM contents. The data manager decodes the DRM contents, which is stored during downloading, by using the encryption key. A data converter(230) converts the DRM contents applied from the data manager to be proper to the DRM format of the DRM device.
Abstract translation: 目的：提供用于转换DRM（数字版权管理）内容的装置和方法，以将DRM内容适当地转换为相应DRM设备的DRM格式，使得转换的DRM内容可以被提供给DRM设备， 使用权。 构成：数据管理器（220）通过使用加密密钥对通过认证的DRM设备上传的DRM内容进行编码，并管理和存储编码的DRM内容。 数据管理器通过使用加密密钥解码在下载期间存储的DRM内容。 数据转换器（230）将从数据管理器应用的DRM内容转换为DRM设备的DRM格式。
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公开(公告)号：KR1020080028673A
公开(公告)日：2008-04-01
申请号：KR1020060094269
申请日：2006-09-27
Applicant: 한국전자통신연구원
IPC: H04N21/835 , H04N7/24
CPC classification number: H04N21/23473 , H04L65/4084 , H04N21/23418 , H04N21/23605 , H04N21/84
Abstract: A packing/unpacking apparatus for the protection of an H.264 video file and a method thereof are provided to generate a video encrypted in a file format with the same structure as an original video file by using encryption video data, non-encryption video data, and metadata descriptor information under a service environment that the H.264 video file is provided in a VOD(Video On Demand) method, thereby protecting the H.264 video file using an existing streaming system. A metadata generator(120) receives video contents information and encryption information to generate a metadata descriptor to be inserted to a video. A stream analysis unit(110) analyzes an HY.264 video received by using the encryption information transmitted from the metadata generator to search for an encryption area. An encryption unit(130) encrypts the encryption area of the video transmitted from the stream analysis unit by using the encryption information transmitted from the metadata generator. A file generator(140) constitutes the same structure of file as an original file by using the meta descriptor transmitted from the metadata generator, non-encryption video data transmitted from the stream analysis unit, and encryption video data transmitted from the encryption unit to generate an encrypted video file.
Abstract translation: 提供了一种用于保护H.264视频文件的打包/解包装置及其方法，以通过使用加密视频数据，非加密视频数据来生成以与原始视频文件相同结构的文件格式加密的视频 ，以及在视频点播（Video On Demand）方式中提供H.264视频文件的服务环境下的元数据描述符信息，从而使用现有流系统保护H.264视频文件。 元数据生成器（120）接收视频内容信息和加密信息，以生成要插入视频的元数据描述符。 流分析单元（110）分析通过使用从元数据生成器发送的加密信息来接收的HY.264视频来搜索加密区域。 加密单元（130）通过使用从元数据生成器发送的加密信息来加密从流分析单元发送的视频的加密区域。 文件生成器（140）通过使用从元数据生成器发送的元描述符构成与原始文件相同的文件结构，从流分析单元发送的非加密视频数据和从加密单元发送的加密视频数据生成 一个加密的视频文件。
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公开(公告)号：KR1020070061286A
公开(公告)日：2007-06-13
申请号：KR1020060083243
申请日：2006-08-31
Applicant: 한국전자통신연구원
CPC classification number: G06F21/10 , G06F17/30858
Abstract: A system and a method for performing DRM by using an index when a new moving image is generated from a plurality of moving images are provided to enable a user to decode/use the encoded moving image contents by searching matched data from encoded contents and providing the searched data to the user if the user accesses index data, and issuing a license for decoding the encoded contents referred through the index data. A DRM index generator(500) generates a DRM index by combining the plurality of moving image contents(100), information for the sections selected from the DRM moving image contents(200), each moving image content ID, and a decoding key ID corresponding to a decoding key of each moving image contents. A license generator(400) generates the license by combining the decoding key information, the decision key ID, and DRM index use right information. A transmitter(600) transmits the DRM index and the license to a client(20). The client includes a decoder(700) for outputting the new moving image contents by receiving the DRM moving image contents from a server(10) and decoding the DRM moving image contents with the license/DRM index received from the transmitter.
Abstract translation: 提供了一种用于当从多个运动图像生成新的运动图像时通过使用索引来执行DRM的系统和方法，以使用户能够通过从编码的内容中搜索匹配的数据来解码/使用编码的运动图像内容，并且提供 如果用户访问索引数据，则向用户搜索数据，并且发出用于对通过索引数据引用的编码内容进行解码的许可证。 DRM索引生成器（500）通过组合多个运动图像内容（100），从DRM运动图像内容（200），每个运动图像内容ID和对应的解码密钥ID中选择的部分的信息来生成DRM索引 涉及每个运动图像内容的解码密钥。 许可证生成器（400）通过组合解码密钥信息，决定密钥ID和DRM索引使用权信息来生成许可证。 发射机（600）将DRM索引和许可证发送给客户端（20）。 客户端包括：解码器（700），用于通过从服务器（10）接收DRM运动图像内容并用从发送器接收到的许可证/ DRM索引对DRM运动图像内容进行解码来输出新的运动图像内容。
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公开(公告)号：KR1020140021388A
公开(公告)日：2014-02-20
申请号：KR1020120087867
申请日：2012-08-10
Applicant: 한국전자통신연구원
IPC: H04N19/63 , H04N19/436 , H04N19/423 , G06T9/00
CPC classification number: G06T1/20 , H04N19/423 , H04N19/436 , H04N19/63 , G06T9/00
Abstract: The present invention relates to a method for encoding an image by using a graphic processing unit (GPU). The present invention includes a step of receiving image data inputted from a control processing unit (CPU); a step of encoding the image data; and a step of transmitting the encoded image data to the CPU. [Reference numerals] (110) Input images; (120) Transmit memory data; (130) Analyze components; (140) Convert ICT; (150) Convert wavelets; (160) Quantization; (170) Transmit the quantized data; (180) Perform Tier-1 and Tier-2 coding
Abstract translation: 本发明涉及一种使用图形处理单元（GPU）对图像进行编码的方法。 本发明包括接收从控制处理单元（CPU）输入的图像数据的步骤; 编码图像数据的步骤; 以及将编码图像数据发送到CPU的步骤。 （附图标记）（110）输入图像; （120）发送存储器数据; （130）分析组件; （140）转换ICT; （150）转换小波; （160）量化; （170）发送量化数据; （180）执行方法1和方法2编码
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Patent Agency Ranking
公开(公告)号：KR101282193B1
公开(公告)日：2013-07-04
申请号：KR1020090108260
申请日：2009-11-10
Applicant: 한국전자통신연구원
IPC: H04N7/24
CPC classification number: H04N19/152 , H04N19/124 , H04N19/147 , H04N19/149 , H04N19/176 , H04N19/61
Abstract: 동영상 인코더(encoder)에서 블록별 비트율을 제어하는 방법에 있어서, (a) 블록에 대한 평균 비트량을 추정하는 단계와, (b) 목표 비트량과 상기 추정된 평균 비트량의 차이에 기초한 목적함수가 최소화되도록 양자화 계수의 변화량을 결정하는 단계를 포함하는 비트율 제어 방법을 제공한다. 이 방법에 의하면, 동영상 인코더에서 블록에 대한 평균 비트량을 추정하여 최적 제어 조건을 만족하도록 블록에 대한 양자화 계수를 제어함으로써 비트율 제어를 위한 연산량을 감소시키고 소정의 압축률을 얻으면서 높은 화질을 얻을 수 있는 효과가 있다.
비트율 제어, 양자화 계수, 칼만 필터, FIR 필터-
公开(公告)号：KR101220180B1
公开(公告)日：2013-01-11
申请号：KR1020090127970
申请日：2009-12-21
Applicant: 한국전자통신연구원
IPC: G06F21/10 , H04N21/4623 , H04N21/4627 , H04N21/83
Abstract: 본 발명은 DRM이 적용된 디지털시네마 콘텐츠의 극장 내 장치 간 공유 방법 및 시스템에 관한 것으로서, 구체적으로는 콘텐츠 서버로부터 KDM(Key Delivery Message) 전송 요청을 수신하면 KDM 서버 또는 마스터링 서버가 암호화 되어 있는 KDM에 대한 암호화를 해제하는 단계; 상기 암호화 해제가 완료되면 KDM 서버 또는 마스터링 서버가 도메인 권한 요청 유무를 판단하는 단계; 도메인 권한 요청이 있으면 KDM 서버 또는 마스터링 서버가 상기 암호화 해제된 KDM에 도메인 권한을 추가하여 도메인 인증서를 입력하는 단계; KDM 서버 또는 마스터링 서버가 상기 도메인 인증서가 입력된 도메인 KDM을 상영서버로 발급하는 단계; 및 상기 도메인 KDM을 상영서버가 분석하여 암호키값을 추출하는 단계를 포함하며, 여기서, 상기 상영 서버는 다수의 상영 기기들을 도메인 등록하고, 도메인 등록된 다수의 상영 기기들에게 상기 암호키값을 전송한다.
디지털시네마, KDM(Key Delivery Message), 콘텐츠 공유-
公开(公告)号：KR101198399B1
公开(公告)日：2012-11-07
申请号：KR1020090128388
申请日：2009-12-21
Applicant: 한국전자통신연구원
Abstract: 영상 압축 파일에 대한 계층별 접근 권한에 따라서 다른 해상도의 영상 파일을 제공하는 디코딩 장치 또는 인코딩 장치를 제공한다. 본 발명의 실시 예에 따른 디지털 권한 관리 기반의 영상 디코딩 장치는, 복수의 계층별로 압축된 영상 압축 파일에 대한 사용자별 접근권한을 수신하여 분석하는 권한 정보 분석부와, 사용자별 접근권한에 근거하여 영상 압축 파일의 디코딩 범위를 설정하는 디코딩 범위 설정부와, 영상 압축 파일을 설정된 디코딩 범위에 근거하여 디코딩하여 생성된 영상 파일을 사용자 단말기에 공급하는 디코딩부를 포함하는 것을 특징으로 한다.
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公开(公告)号：KR1020110071407A
公开(公告)日：2011-06-29
申请号：KR1020090127970
申请日：2009-12-21
Applicant: 한국전자통신연구원
IPC: G06F21/10 , H04N21/4623 , H04N21/4627 , H04N21/83
CPC classification number: G06F21/105 , G06F21/33 , G06Q50/30 , H04L9/08 , H04L9/3263 , H04L2209/603 , H04L2463/101 , H04N21/4627
Abstract: PURPOSE: A method for sharing digital contents in theater of digital cinema contents of which DRM(Digital Rights Management) is applied, is provided to enable the screening device to share the KDM(Key Delivery Message) by setting the multiple screening device in the theater as the domain. CONSTITUTION: When the KDM transfer request is received from a contents server, the KDM or mastering server authenticates the general KDM(S100). When the general KDM is authenticated, the server cancels the encoding(S200). The server decides the domain right request(S300). The server adds the domain authority to the encoded KDM and inputs the domain certificate. The server issues the domain KDM of which the domain certificate is inputted to the screening server.
Abstract translation: 目的：提供应用DRM（数字版权管理）的数字影院内容数字影院内共享数字内容的方法，使得屏幕设备能够通过在剧院中设置多重屏幕设备来共享KDM（密钥传递消息） 作为域名。 构成：当从内容服务器接收到KDM传输请求时，KDM或母盘制作服务器认证通用KDM（S100）。 当通用KDM被认证时，服务器取消编码（S200）。 服务器决定域权限请求（S300）。 服务器将域权限添加到编码的KDM并输入域证书。 服务器将域证书的域KDM发送到筛选服务器。
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公开(公告)号：KR1020110051607A
公开(公告)日：2011-05-18
申请号：KR1020090108260
申请日：2009-11-10
Applicant: 한국전자통신연구원
IPC: H04N7/24
CPC classification number: H04N19/152 , H04N19/124 , H04N19/147 , H04N19/149 , H04N19/176 , H04N19/61
Abstract: PURPOSE: A method for controlling a bit rate of a video encoder using Kalman filter and an FIR filter is provided to efficiently control a bit rate for each block by reducing the calculation amount by estimating an average bit rate for a block in a video encoder. CONSTITUTION: A method for controlling a bit rate of a video encoder using Kalman filter and an FIR filter comprises the steps of: estimating an average bit rate for a block(S210-S240); and determining the change amount of an quantization coefficient to minimize a purpose function based on the difference between a target bit rate and the estimated average bit rate(S250, S260).
Abstract translation: 目的：提供一种使用卡尔曼滤波器和FIR滤波器来控制视频编码器的比特率的方法，以通过估计视频编码器中的块的平均比特率来减少计算量来有效地控制每个块的比特率。 构成：使用卡尔曼滤波器和FIR滤波器来控制视频编码器的比特率的方法包括以下步骤：估计块的平均比特率（S210-S240）; 以及基于目标比特率和估计的平均比特率之间的差来确定量化系数的变化量以最小化目的函数（S250，S260）。
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