Method and apparatus of verifying that requested content matches content to be downloaded
US8185922B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2008 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Jul 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4755
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for distributing requested content includes a content management system 12 and a device 14 such as a set top box that selects a selection corresponding to content in the content management system 12 and transmits a first material identification to the content management system. The content management system 12 transmits the content to the device with a second material identification associated therewith. The device 14 receives the content and the second material identification and compares the first material identification to the second material identification. When the second material identification corresponds to the content, the device continues downloading the content. When the second material identification does not correspond to the content, downloading of the file is discontinued. A content prefix may also be used alone or in combination with the material identification. The content is prevented from being transmitted if the content prefix does not correspond to the content type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.