Maintaining accurate channel line-up by persistently monitoring availability of accessible channels
US7765570B2 · kind B2 · utility
3Cited by
16References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2007 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Sep 12, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/482
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A channel updater. The channel updater maintains an accurate channel line-up by automatically testing accessible channels to determine if those channels are available for viewing. Available channels are added to the channel line-up, and unavailable channels are subtracted from the channel line-up. The updater persistently retests the channels so that changes in channel availability are reflected in the channel line-up.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.