System, method, and device for playing back recorded audio, video or other content from non-volatile memory cards, compact disks or other media
US7227952B2 · kind B2 · utility
36Cited by
14References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2001 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | Jan 11, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2005/91364
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A secure software system for a portable device or computer that provides a simple interface to the device or computer and that retrieves and dynamically decrypts keys and content from a secure media while minimizing exposure of the keys and eliminating the need for manufacturers of the device or computer to create a their own system to manage these complex processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.