The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 2014
Filed:
Dec. 08, 2004
Dong-kyoo Shin, Seoul, KR;
Jun-il Kim, Yangju-si, KR;
Dong-il Shin, Seoul, KR;
Yong-bin Kim, Seoul, KR;
Soon-yong Choi, Seoul, KR;
Dong-kyoo Shin, Seoul, KR;
Jun-il Kim, Yangju-si, KR;
Dong-il Shin, Seoul, KR;
Yong-bin Kim, Seoul, KR;
Soon-yong Choi, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Sejong Industry-Academy Cooperation Foundation, Seoul, KR;
Abstract
A method of encrypting a motion picture file and a method of digital rights management using the same, wherein encryption method includes: extracting information on the location of at least one video sample, which is a real-time streaming unit, from meta-data of the motion picture file; extracting the video samples based on the location information; encrypting the extracted video samples, excluding a start code within a video sample header of each extracted video sample, based on predetermined encryption information; and producing an encrypted motion picture file by recombining the encrypted video samples. Since the file is encrypted in units of video object planes (VOPs) while maintaining an MEPG-4 file format, the encryption method can be easily applied to a completed file format and streaming service is also possible.