Integration of telephone return link using fiber and cable media
US6163537A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 12, 1999 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Jan 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6187
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for integrating a telephone internal access return link with an upstream data carrier using a fiber optic network and downstream data transfer using a cable TV system. The systems and methods provide for a cost effective implementation of a data over cable TV system using the cable system for downstream data transfer and a telephone modem for upstream data transfer. The telephone return path is terminated at a neighborhood node or optical network interface of the cable TV system. The optical network interface combines, modulates, and multiplexes the upstream data onto an upstream fiber carrier. At the cable headend, the carrier is demultiplexed, demodulated, and the data is forwarded to a remote access server of an Internet service provider.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.