Godigital Networks Corporation

Terayon Communication Systems, Inc.

Godigital Telecommunications, Inc.

Francis I Akers

Nicholas A Balatoni

Daniel W Agar

Frederick J Brandt

Method and apparatus for providing a long loop broadband service which allows data from different ADSL users to be shared and transported across a group (possibly a group of one) of line-powered, repeatered copper pairs utilizing a symmetric transmission approach is disclosed. Multiple ADSL users are able to share the bandwidth on pair(s) between the Remote Terminal Unit and Central Termination Unit by converting the ADSL data into ATM cells that are properly addressed and sent over the pair(s). Straight-Through Repeaters can be used in between the Central Termination Unit and the Remote Termination Unit on each of the pairs to extend the reach of the system. In this manner, the reach of ADSL (or other) internet access can be increased from its present 15 to 18 kft limitation to over 40,000 feet using 26 gauge wire, effectively reaching over 99% of subscribers.

Method and apparatus for providing high capacity, long loop broadband ADSL service

A method and related apparatus for concurrent transmission and reception of at least one analog voice telephone signal and at least one ISDN service signal between a first location and a second location over a single twisted pair using a digitally encoded signal that is selected from the group consisting of 2B1Q and 4B3T signals. The method further includes the steps of sending line power over the single twisted pair, transferring the digitally encoded signal to the second location over the single twisted pair, and detecting non-operation of the digitally encoded signal between the first location and the second location to thereby impose a bypass lifeline and provide the analog telephone signal at the second location over the single twisted pair. The method also includes the step of providing the ISDN signal and the analog telephone signal at the second location over the single twisted pair when the non-operation is not detected. The present method and apparatus can provide at least a 2-to-1 pair gain by multiplexing signals representing the analog voice telephone signal and ISDN service signal, in a specific embodiment.

ISDN plus voice multiplexer system

High-speed digital transmission can be achieved with existing phone lines and HDSL chipsets while retaining plain old telephone service (POTS) with full failsafe capability. Two original ISDN signals [4,5] at a rate of 160 kbps and one POTS channel [10] digitized at 64 kbps are multiplexed by a MIPCS card [6] of a signal provider [1]. The resulting digital signal is transported over a twisted cable pair [2] which has an approximate maximum length of 16 kft based on the current technology. At a receiving end, the signal is demultiplexed and regenerated by a subscriber's MIPCS card [7]. The subscriber's MIPCS card is line-powered via the cable [2] to avoid dependence upon local power. The regenerated signals are transmitted over one POTS line [42] and two ISDN cables [8,9] to remote premises. Both MIPCS cards have bypass relays for the POTS lines to ensure the subscriber's POTS access in the event of a local power outage or electronic failure.

Multiple ISDN and pots carrier system

High-speed digital transmission can be achieved with existing phone lines and HDSL chipsets. Two original ISDN signals [4,5] at a rate of 160 kbps are multiplexed by a MICS card [6] of a signal provider [1]. The resulting digital signal is transported over a twisted cable pair [2] which has an approximate maximum length of 16 kft. At a receiving end, the signal is demultiplexed and regenerated by a subscriber's MICS card [7]. The subscriber's MICS card is line-powered via the cable [2] to avoid dependence upon local power. The regenerated signals are transmitted over two ISDN cables to remote premises which can be as far as 18 kft away.

Multiple ISDN carrier system

High-speed digital transmission can be achieved with existing phone lines and HDSL chipsets while retaining plain old telephone service (POTS) with full failsafe capability. One original digital data signal �4! at a rate of at least 352 kbps and typical 384 kbps and one POTS channel �10! digitized at 64 kbps are multiplexed by a HPCS card �6! of a signal provider �1!. The resulting digital signal is transported over a twisted based on the current technology. At a receiving end, the signal is demultiplexed and regenerated by a subscriber's HPCS card �7!. The subscriber's HPCS card is line-powered via the cable �2! to avoid dependence upon local power. The regenerated signals are transmitted over one POTS line �42! and one data line �8! to or within a remote premise. Both HPCS cards have bypass relays for the POTS line to ensure the subscriber's POTS access in the event of a local power outage or electronic failure.

Growing community of inventors

San Mateo, CA, United States of America

Francis I Akers