Integration of telephone return link using fiber and cable media

Details Integration of telephone return link using fiber and cable media Integration of telephone return link using fiber and cable media

1999-01-12

2000-12-19

Marcelo, Melvin

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

348 12, 709219, H04H 102, H04J 1400

Patent

active

061635375

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.

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Olshansky, R., `Microwave Subcarrier Multiplexing: New Approach to Wideband Lightwave Systems`, IEEE Circuits and Devices Magazine, pp. 8-14, Nov. 1998.
Cohen, R. et al., `TCP for High Performance in Hybrid Fiber Coaxial Broad-Band Access Networks`, IEEE Transactions On Broadcasting, vol. 6, No. 1, pp. 15-29, Feb. 1998.
Huang, N.F. et al., `A Hierarchical HFC Network with Qos Guaranteed Traffic Policy`, IEEE Transactions On Broadcasting, vol. 44, No. 4, pp. 571-526, Dec. 1998.

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