Lucent Technologies Inc.

At+t Corp.

American Telephone and Telegraph, Co.

Roger Henry Levy

Donald E Blahut

Ronald L Sharp

Enrique Hernandez-Valencia

Peter Allen Dempsey

James D Bobeck

Robert William Dalton

Robert W DeMarco

Raphael Jimenez

John H Blevin

Robert William Demarco

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.

Internet protocol based network architecture for cable television access

Disclosed is a method and apparatus for identifying remote terminals which are networked in a digital loop transmission system. A Site Interface Unit (SIU) at one of the remote terminals acts as a master. The Bank Controller Unit (BCU) at each remote terminal calculates a 16-bit number based on its 60-byte serial number. A binary search is then performed by the SIU to determine the calculated number of each BCU, and an address is assigned to each remote terminal by the SIU. Any conflicts in the numbers initially calculated are resolved by transmission of the full 60-byte serial number.

Address management for remote terminals in digital loop transmission

Growing community of inventors

Berkeley Heights, NJ, United States of America

Roger Henry Levy