Multichannel multipoint network using time-division multiplexing

Details Multichannel multipoint network using time-division multiplexing Multichannel multipoint network using time-division multiplexing

1989-05-24

1991-08-27

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370108, 375109, H04J 306

Patent

active

050439820

ABSTRACT:
Time-division multiplexing (TDM) is used for communications between each remote location and the central location of a multichannel, multipoint polling network. Each remote location transmits data in a TDM frame which has predetermined time intervals for each channel or application. The duration and order of these time intervals are the same for each remote location. However, to avoid collisions between arriving data at the central location, the TDM frame used at each remote location is offset relative to the TDM frame at the central location by a time interval equal to the propagation delay for communications between that remote location and the central location. As a result, data for each application arrives at the central location in nonoverlapping time intervals and data collision is avoided.

REFERENCES:
patent: 4562573 (1985-12-01), Murano et al.
patent: 4601030 (1986-07-01), Croisier
patent: 4694453 (1987-09-01), Kobayashi et al.
patent: 4726017 (1988-02-01), Krum et al.
patent: 4773065 (1988-09-01), Kobayashi et al.
patent: 4797878 (1989-01-01), Armstrong

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