Conexant Systems, Inc.

Nuno F Paulino

Raphael Rahamim

Thomas Grey Beutler

Alberto Mantovani

Jacques Mathe

A modem utilizing a DAA having line side circuitry including a telephone network interface and system side circuitry including a host system interface, the line side circuitry and the system side circuitry being separated by a high voltage isolation barrier. A CODEC is provided in the line side circuitry, such that encoded information generated by the CODEC, as well as information for decoding by the CODEC, are communicated across the high voltage isolation barrier. These communications are accomplished in a digital manner. In an alternate embodiment of the invention, the line side circuitry of the modem further includes programmable detection and measurement circuitry that is programmable to measure electrical characteristics (e.g., tip/ring voltage and loop current) of the telephone line interface connection and is capable of corresponding adjustments to enable compliance with applicable regulations. The system is software programmable via control signals sent across the high voltage isolation barrier to establish electrical parameters corresponding to a specific country where the equipment may be used.

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Newport, CA, United States of America

Nuno F Paulino