Method and apparatus for protecting scalable video coding contents
US8509434B2 · kind B2 · utility
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22Claims
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Key dates
| Filing date | Jun 20, 2008 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Feb 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.