Digital cable headend for cable television delivery system
US7269841B1 · kind B1 · utility
13Cited by
171References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1997 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | Oct 27, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/2385
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Several cable headend configurations that utilize digital technology are disclosed. The present invention provides greater capability and flexibility than existing cable headends. Specifically, a modular design for a cable headend and a combiner component for cable headends are disclosed. The invention is particularly useful in cable television program delivery systems transponding large numbers of digitally compressed program signals. The combiner disclosed allows cherry-picking of programs from transponded signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.