Multiplex communications – Wide area network – Packet switching
Patent
1991-08-20
1993-04-20
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 601, 370 79, 370 941, 370 942, H04J 302, H04J 312
Patent
active
052048578
ABSTRACT:
An ATM exchange system capable of accommodation not only terminals of an ATM system but also terminals of an STM system at low cost. The ATM system includes an ATM channel switch for providing a direct exchange connection between the ATM terminal and an ATM trunk line, an STM channel switch for providing a direct exchange connection between the STM terminal and an STM trunk line, and an STM/ATM conversion module connected between the ATM channel switch and the STM channel switch and adapted to convert a call of one system to that of another system when a call is made between ATM terminal/line and STM terminal/line.
REFERENCES:
patent: 4926416 (1990-05-01), Weik
patent: 5010545 (1991-04-01), Jacob
patent: 5119370 (1992-06-01), Terry
Blum Russell
Kabushiki Kaisha Toshiba
Olms Douglas W.
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