H - Electricity – 04 – L
Patent
H - Electricity
04
L
363/10, 340/82
H04L 5/00 (2006.01) H04L 12/66 (2006.01) H04L 29/06 (2006.01)
Patent
CA 1300288
ABSTRACT Multiport/multidrop computer communication is provided over a single communication facility between plurality of central stations at a central location their respective remote stations at remote locations. Outbound transmissions are multiplexed from a multiport central modem to compatible multiport remote modems. The central stations are monitored to detect which one or ones have invited a response from a remote station and one central station is selected. A signal is sent to the remote modems and indicating the selected central station. The signal combined with the request to send of the invited remote computer associated with the selected central station to enable use of the return transmission lines. The request to send signal line idle or idle code stations are monitored to detect which central stations have invited a remote. signaling is by RTS-DCD simulation in commercial modems. Another central station is selected if return transmission does not begin within a timer interval. Fast reset is provided if carrier persists after the return transmission has ended.
567156
Duggan Robert
Osler Hoskin & Harcourt Llp
LandOfFree
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