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1. WO2020141823 - DRM CONTENT PACKAGING DEVICE, DRM CONTENT PACKAGING SYSTEM COMPRISING SAME, AND DRM CONTENT PACKAGING METHOD

Publication Number WO/2020/141823
Publication Date 09.07.2020
International Application No. PCT/KR2019/018678
International Filing Date 30.12.2019
IPC
H04N 21/2389 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
238Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
2389Multiplex stream processing, e.g. multiplex stream encrypting
H04N 21/4627 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies or resolving scheduling conflicts
462Content or additional data management e.g. creating a master electronic program guide from data received from the Internet and a Head-end or controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
4627Rights management
H04N 21/83 2011.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
83Generation or processing of protective or descriptive data associated with content; Content structuring
H04N 19/91 2014.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
90using coding techniques not provided for in groups H04N19/10-H04N19/85103
91Entropy coding, e.g. variable length coding or arithmetic coding
H04N 19/124 2014.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
124Quantisation
H04N 19/85 2014.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
85using pre-processing or post-processing specially adapted for video compression
CPC
H04N 19/124
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
124Quantisation
H04N 19/85
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
85using pre-processing or post-processing specially adapted for video compression
H04N 19/91
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
90using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
91Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
H04N 21/2389
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
238Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
2389Multiplex stream processing, e.g. multiplex stream encrypting
H04N 21/23892
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
238Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
2389Multiplex stream processing, e.g. multiplex stream encrypting
23892involving embedding information at multiplex stream level, e.g. embedding a watermark at packet level
H04N 21/4627
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
462Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
4627Rights management ; associated to the content
Applicants
  • 재단법인 경주스마트미디어센터 GYEONGJU SMART MEDIA CENTER [KR]/[KR]
  • 주식회사우경정보기술 WOOKYOUNG INFORMATION TECHNOLOGY CO., LTD. [KR]/[KR]
Inventors
  • 신상호 SHIN, Sang-Ho
  • 김대수 KIM, Dae-Soo
  • 박윤하 PARK, Yun-Ha
  • 오재호 OH, Jae-Ho
Agents
  • 특허법인 천지 IPCJ PATENT & LAW FIRM
Priority Data
10-2018-017365031.12.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) DRM CONTENT PACKAGING DEVICE, DRM CONTENT PACKAGING SYSTEM COMPRISING SAME, AND DRM CONTENT PACKAGING METHOD
(FR) DISPOSITIF D'ENCAPSULATION DE CONTENU DE DRM, SYSTÈME D'ENCAPSULATION DE CONTENU DE DRM COMPRENANT LEDIT DISPOSITIF ET PROCÉDÉ D'ENCAPSULATION DE CONTENU DE DRM
(KO) DRM 콘텐츠 패키징 장치 및 이를 포함하는 DRM 콘텐츠 패키징 시스템 및 DRM 콘텐츠 패키징 방법
Abstract
(EN)
The present invention relates to a DRM content packaging device, a DRM content packaging system comprising same, and a DRM content packaging method, which can reduce the time and amount of calculation DRM packaging takes, regardless of the size of an image content, the DRM content packaging device according to an embodiment of the present invention comprising: a decoding module for decoding an image content by using a CABAC decoder; a DRM content packaging module which performs DRM packaging by selecting, from data derived using the result of decoding by the decoding module, quantized transform coefficient (QTC) data, and by performing an XOR calculation to a bitstream of the selected QTC data and a bitstream of DRM metadata; and an encoding module for encoding, by using a CABAC encoder, an image frame to which DRAM packaging has been performed.
(FR)
La présente invention concerne un dispositif d'encapsulation de contenu de DRM, un système d'encapsulation de contenu de DRM comprenant ledit dispositif et un procédé d'encapsulation de contenu de DRM, pouvant réduire le temps et la quantité de calculs dont a besoin l'encapsulation de DRM, indépendamment de la taille d'un contenu d'image. Le dispositif d'encapsulation de contenu de DRM selon un mode de réalisation de la présente invention comprend : un module de décodage permettant de décoder un contenu d'image à l'aide d'un décodeur CABAC ; un module d'encapsulation de contenu de DRM qui réalise une encapsulation de DRM par sélection, à partir de données dérivées à l'aide du résultat du décodage par le module de décodage, de données de coefficient de transformée quantifié (QTC) et par réalisation d'un calcul XOR sur un train de bits des données QTC sélectionnées et sur un train de bits de métadonnées DRM ; et un module de codage permettant de coder, à l'aide d'un codeur CABAC, une trame d'image sur laquelle une encapsulation de DRAM a été réalisée.
(KO)
본 발명은 영상 콘텐츠의 용량에 관계없이 DRM 패키징 소요 시간과 연산량을 감소시킬 수 있는 DRM 콘텐츠 패키징 장치 및 이를 포함하는 DRM 콘텐츠 패키징 시스템 및 DRM 콘텐츠 패키징 방법에 관한 것으로, 본 발명의 실시예에 따른 DRM 콘텐츠 패키징 장치는, CABAC 디코더를 이용하여 영상 콘텐츠를 디코딩하는 디코딩 모듈; 상기 디코딩 모듈에 의한 디코딩 결과로 도출된 데이터들 중에서 QTC(Quantized Transform Coefficients : 양자화된 변환 계수) 데이터를 선택하고, 선택된 QTC 데이터의 비트스트림과 DRM 메타데이터의 비트스트림을 XOR 연산하여 DRM 패키징을 수행하는 DRM 콘텐츠 패키징 모듈; 및, CABAC 인코더를 이용하여 상기 DRM 패키징이 수행된 영상 프레임을 인코딩하는 인코딩 모듈을 포함한다.
Also published as
JP2020573457
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