Decoding media content at a wireless receiver
US8973026B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2007 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | May 7, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A wireless receiver, in the form of a mobile telephone, includes a DAB receiver and a GSM/GPRS transceiver which enables bi-directional point-to-point data communications via a service provider. The DAB receiver is arranged to receive media data from an over-the-air broadcast channel, the media data primarily representing television and radio streams. In order that the streams can be decoded and decrypted by media playing software on the wireless receiver, a provisioning operation is employed to provide NSC header files and DRM licenses to users in response to them making content requests. The header files and licenses are sent over a separate data channel and in advance of the broadcast content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.