Globespan, Inc.

Laszlo Arato

Arnold Muralt

Russell W Bell

Danny Amrany

Luke J Smithwick

A multi-channel DSL communication link in accordance with the present invention may comprise a plurality of N DSL transceivers each configured with at least two bi-directional serial data interfaces with the first interface of a first transceiver coupled to a communication interface and the second interface of the first transceiver coupled to a first bi-directional serial data port of a second transceiver. Subsequent transceivers may be coupled in this manner with its N&#x2212;1 and N+1 nearest transceivers. A method for transferring data between multiple transceivers is also disclosed, which can be described as follows: recovering a mapped portion of a downstream data stream at each of N DSL transceivers; communicating the portion to the next closest transceiver to a communication interface; and mapping an upstream data stream for transmission via the N transceivers; using each respective transceiver's second data interface to communicate a mapped portion to the next furthest transceiver.

System and method for combining multiple digital subscriber line transceivers

A system and method for a communication to communicate both POTS and XDSL are provided. In accordance with one aspect of the invention, in improved central office line card circuit is provided, wherein the line card circuit includes a two-wire signal line for electrical connection with a two-wire local loop. A line interface card interfaces with the local loop and includes a bi-directional line for bi-directional communication with the signal line. In addition, the line interface circuit further has an input line and an output line. A first channel has an output electrically connected to the input line of the line interface circuit, and the first channel has inputs for both a pulse code modulation (PCM) input and a xDSL input. Similarly, a second channel has an input that is electrically connected to the output line of the line interface circuit. In addition, the second channel has outputs for both a PCM output and a xDSL output. An analog to digital converter is electrically interposed between the second channel input and the second channel PCM and xDSL outputs, and is operative to process (i.e., convert from analog to digital) shared PCM and xDSL signals. Finally, a digital to analog converter is electrically interposed between the first channel output and the first channel PCM and xDSL inputs. The digital to analog converter is similarly operative to process shared PCM and xDSL signals.

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Newport Beach, CA, United States of America

Laszlo Arato