Multiplex communications – Wide area network – Packet switching
Patent
1993-02-18
1994-11-15
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 601, 370 941, 3701101, H04Q 1104
Patent
active
053655214
ABSTRACT:
A data transmission among the exchange modules in the building block type exchanger with improved efficiency, reliability and simplicity of implementation. An ATM connector is connected to the STM exchange module connector through at least one STM transmission line containing logical transmission paths provided in correspondence to the logical STM transmission path for transmission of specific data connected from each exchange module to the STM exchange module connector and fixedly switched by the STM exchange module connector to the logical transmission paths of the STM transmission line connected to the ATM connector. The specific data to be transmitted from each exchange module are transmitted in a form of ATM cells to the ATM connector, while all the specific data to be transmitted to each exchange module are multiplexed in a form of multiplexed ATM cells at the ATM connector and the multiplexed ATM cells are transmitted from the ATM connector to each exchange module.
REFERENCES:
patent: 3856993 (1974-12-01), Closs et al.
patent: 4926416 (1990-05-01), Weik
patent: 4972465 (1990-11-01), Cline et al.
patent: 5119370 (1992-06-01), Terry
English abstract of Japanese Patent No. 3-143098.
English version of the search report from the EPO.
Kogure Kouji
Ohnishi Hirokazu
Shinozaki Kiminori
Suzuki Shigehiko
Yasuda Shinji
Blum Russell W.
Nippon Telegraph and Telephone Corporation
Olms Douglas W.
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