Internet protocol based network architecture for cable television access with switched fallback
US6065061A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1997 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Dec 16, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/5692
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A user accesses the Internet through a hybrid data communications system architecture in which upstream service is provided via the local loop of the public switched telephone network (PSTN) and downstream service is provided via a cable television (CATV) network. The Cable Modem Data Termination system (CMTS) includes a routing table. Upon detection of a CATV service interruption, the CMTS re-routes IP traffic destined for a destination IP address (IP1) associated with the user to a different IP address, or endpoint, as a function of the routing table. In this instance, the different IP address is associated with equipment that provides downstream IP service to the user via the local loop of the PSTN.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.