Importance

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Abstract

A gateway for connecting an existing public network to an asynchronous transfer mode (ATM)-based access network is provided. The gateway includes an ATM network connector for performing signal processing to send or receive a signal via a broadband ATM network and controlling the signal processing, an existing circuit network connector for processing a signal to send or receive the signal via an existing circuit network, reciprocally converting between the signal transmitted via the existing circuit network and an ATM cell, and controlling the signal processing and the conversion, a plurality of line terminations for sending or receiving a signal by connecting to a remote user, converting between the signal from the user and the ATM cell, and controlling the sending, reception and conversion, and a system bus for transmitting a signal between the plurality of line terminations and the ATM and existing circuit network connectors. Therefore, when a superspeed information communications network is later established on the basis of ATM, the load applied to an ATM network exchanger during connection of an ATM access network with the existing circuit network is reduced, to aid high-speed information communications.

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First Claim