Systems, methods and apparatuses for the secure transmission and restricted use of media content
US9185094B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2013 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Feb 28, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S40/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The systems, methods and apparatuses described herein permit encrypted media content to be displayed by an apparatus for a restricted time period. The apparatus may comprise a communication interface configured to couple to a controlling device to transmit a first nonce and to receive the encrypted media content and an association encryption envelope. The association encryption envelope may comprise at least a second nonce and a first time restriction expressed as a first time interval. The apparatus may further comprise a counter, a storage configured to store a value of the counter representing a time of when the first nonce is transmitted, and an engine configured to perform operations according to the first time restriction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.