Title:
DRM CONTENT PACKAGING DEVICE, DRM CONTENT PACKAGING SYSTEM COMPRISING SAME, AND DRM CONTENT PACKAGING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/141823
Kind Code:
A1
Abstract:
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.
Inventors:
SHIN SANG-HO (KR)
KIM DAE-SOO (KR)
PARK YUN-HA (KR)
OH JAE-HO (KR)
KIM DAE-SOO (KR)
PARK YUN-HA (KR)
OH JAE-HO (KR)
Application Number:
PCT/KR2019/018678
Publication Date:
July 09, 2020
Filing Date:
December 30, 2019
Export Citation:
Assignee:
GYEONGJU SMART MEDIA CENTER (KR)
WOOKYOUNG INFORMATION TECH CO LTD (KR)
WOOKYOUNG INFORMATION TECH CO LTD (KR)
International Classes:
H04N21/2389; H04N19/124; H04N19/85; H04N19/91; H04N21/4627; H04N21/83
Foreign References:
| KR20070121487A | 2007-12-27 | |||
| KR101145110B1 | 2012-05-15 | |||
| KR20050055568A | 2005-06-13 | |||
| KR20170092749A | 2017-08-14 | |||
| KR20180043679A | 2018-04-30 |
Attorney, Agent or Firm:
IPCJ PATENT & LAW FIRM (KR)
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