Fiberoptic telephone systems

Details Fiberoptic telephone systems Fiberoptic telephone systems

1990-11-28

1993-02-09

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

379269, 379290, H04J 316

Patent

active

051857383

ABSTRACT:
A telephone network with distributed processing capabilities. A local controller is provided for monitoring status of a plurality of users. A primary controller performs circular polls of the local controllers to determine status changes. The system operates in a time division multiplexed fashion, and the primary controller assigns during which time slot each particular conversation will occur. A synchronizer for synchronizing between the primary and the secondary controller is also provided. In addition, the ring timing for the subscriber premise can be performed in the microprocessor at the subscriber premise.

REFERENCES:
patent: 3779628 (1973-12-01), Kapron et al.
patent: 4689619 (1987-08-01), O'Brien, Jr.
patent: 4763976 (1988-08-01), Nolan et al.
patent: 4804248 (1989-02-01), Bhagavatala
patent: 4839892 (1989-06-01), Sasaki
patent: 4860287 (1989-08-01), Kelly
patent: 4998249 (1991-03-01), Bennett et al.

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