Modem unit

H - Electricity – 04 – B

Patent

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Details

H04B 1/40 (2006.01) H01M 2/10 (2006.01) H04M 11/06 (2006.01) H04Q 7/20 (2006.01)

Patent

CA 2091958

A modem unit is adapted to be coupled between a land or radio telephone line and a terminal equipment, and is provided with a modem circuit for modulating data received from the terminal equipment and for demodulating data transmitted to the terminal equipment, and an isolation circuit for providing a DC isolation between the telephone line and the terminal equipment. The modem circuit and the isolation circuit are respectively provided on a single modem integrated circuit card.

Une unité de modem est adaptée afin de faire le lien entre une ligne radiotéléphonique ou terrestre et un équipement terminal et est fournie avec un circuit de modem pour la modulation des données reçues de l'équipement terminal et pour la démodulation des données transmises à l'équipement terminal, et un circuit d'isolement pour couper le courant CC entre la ligne téléphonique et l'équipement terminal. Le circuit du modem et le circuit d'isolement sont respectivement fournis sur une seule carte de circuit intégré de modem.

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