System and method for an all digital communication system with a life line
US6647024B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1999 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | May 7, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/6429
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication system and method for supporting both POTS and high speed data services between a remote CPE interface, located at a subscriber premises, and a central office. An analog to digital converter transforms an analog POTS signal to a digital POTS signal, and a combiner circuit combines the digital POTS signal with a high speed data signal into a combined digital signal which preferably has a single communication spectrum. A power detector identifies a power failure at the remote CPE interface, and a life line communication path is established from the central office to the remote CPE interface in response to the power failure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.