Method for using rights to contents
US8955053B2 · kind B2 · utility
0Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2010 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Dec 10, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4181
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a method of checking whether or not a memory card including rights to contents is mounted in a terminal during a process of using the contents. The checking operation may be performed in synchronization with a timing at which a BCAST client within the terminal requests a traffic encryption key (TEK) to a DRM agent. In addition, there is disclosed herein a method of checking whether or not the memory card is mounted therein, as well as whether or not rights to the contents actually exist in the memory card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.