High availability mechanism in a cable environment
US7181760B1 · kind B1 · utility
20Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 26, 2000 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Sep 16, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scalable fault tolerant cable headend switching system using modular switching or multiplexing devices. A radio frequency switch connects a series of adjacent cable headend element to a series of output cables. At least one spare cable headend element is connected along with the series. Each cable headend element is configured to be readily swapped with adjacent elements. Output cables are cascaded away from a faulty element toward a spare element when a fault is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.