Presenting content protected by multiple DRMS
US11093586B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2018 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Aug 1, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/603
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Examples are disclosed related to presenting on a client device configured for a first digital rights management technology (DRM-1) content that is protected by a second digital rights management technology (DRM-2). One example provides a computing device configured to receive a request from an application for a DRM-2 license acquisition challenge, forward the request to a DRM-2 license acquisition challenge generator, receive a DRM-2 license acquisition challenge and DRM-2 state information, send the DRM-2 license acquisition challenge to the application, receive, from the application, a DRM-2 license acquisition response, generate a DRM-1 license acquisition challenge incorporating the DRM-2 license acquisition challenge, the DRM-2 license acquisition response, and the DRM-2 state information, send the DRM-1 license acquisition challenge to a remote DRM-1 license acquisition server, receive a DRM-1 license acquisition response comprising a key and a license policy, enforce the license policy for content protection, and decrypt content using the key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.