Remote access to local content using transcryption of digital rights management schemes
US7500269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2005 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Mar 23, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/101
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and devices allowing distribution of content that resides in a source device on a local area network (LAN) are described. A gateway between the LAN and a wide area network (WAN) receives from a sink device a request for an instance of content. The request is sent over the WAN. Distribution of the item of content within the LAN uses a first digital rights management (DRM) protocol that prevents the item of content from being distributed outside the LAN. For the item of content, the gateway converts from the first DRM protocol to a second DRM protocol that can be used for transmitting content over the WAN. The item of content can then be forwarded to the sink device according to the second DRM protocol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.