Delivery of non-permanent media files to a mobile station
US7523507B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2004 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Mar 22, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/033
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A media file content provider 30 sends a non-permanent copy of a media file, such as a music or video file, to a second mobile station MS 34 in response to a request from a first MS 22. The copy may be rendered non-permanent by streaming it, by encrypting it, and by appending a first instruction to automatically delete it after playing. The first MS 22 may be given an option of delivery pathways, such as cellular 76, 78, WLAN 80, or DVB-H 84. After playing, an offer is made to the second MS 34 to purchase a permanent copy of the media file. If accepted, the content provider may provide another copy of the media file, or preferably a permanent decryption key or a second instruction that defeats the first instruction prior to its deletion of the media file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.