H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
344/25
H04Q 11/04 (2006.01) H04J 3/12 (2006.01) H04L 12/00 (2006.01)
Patent
CA 1181840
SELF-SWITCHED DATA PORT IN-BAND SIGNALING PROTOCOL Abstract A self-switched in band signaling communication apparatus is disclosed which enables the switching of the signaling mode to the data mode on a single transmission line between a data terminal equipment or data communication equipment and the data port of a satellite communications controller, and the opposite switching from the data mode to the signaling mode under a single control bit. Signaling to and from the data port of the satellite communications controller is carried out using con- ventional dialing pulses at a signaling rate which is independent of the line data rate. The apparatus provides for the multipoint communication between a plurality of data terminal equipments using a unique multipoint turn-around process which provides a mobile bandwidth capability Ior the communications system.
412970
Barner Robert P.
Bensadon Joseph M.
Besseyre Jacques A.
Markey Harold G.
International Business Machines Corporation
Saunders Raymond H.
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