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:
Aug. 13, 2013
Filed:
Jun. 20, 2008
Keun Soo Park, Seoul, KR;
Keun Sik Lee, Seoul, KR;
Sang Jin Hahm, Seoul, KR;
Byung Sun Kim, Gyeonggi-do, KR;
Mun Churl Kim, Daejeon, KR;
Keun Soo Park, Seoul, KR;
Keun Sik Lee, Seoul, KR;
Sang Jin Hahm, Seoul, KR;
Byung Sun Kim, Gyeonggi-do, KR;
Mun Churl Kim, Daejeon, KR;
Korean Broadcasting System, Seoul, KR;
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Abstract
Disclosed are a method and apparatus capable of reducing the computational complexity of encryption and decryption by encrypting only data of scalable video coding contents for each coding layer in terms of temporal, spatial, and SNR scalabilities to provide a service for protected scalable video coding contents, and capable of protecting contents by generating and distributing an encryption key for encryption and decryption depending on a class of a contents consumer.