Multimode modem

Details Multimode modem Multimode modem

1988-05-12

1990-06-05

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375121, 379 63, H04B 138

Patent

active

049312502

ABSTRACT:
The modem communicates with a variety of modem types employing differing initial handshake signals. The multimode modem sends a sequence of signals corresponding to the variety of modem type handshake signals and the sequence terminates when the multimode modem receives an appropriate response identifying a particular one of the variety of modem types.

REFERENCES:
patent: 3716672 (1973-02-01), Fretwell
patent: 3842207 (1974-10-01), Fretwell
patent: 4215243 (1980-07-01), Maxwell
patent: 4578796 (1986-03-01), Charalambous et al.
patent: 4727370 (1988-02-01), Shih
patent: 4756007 (1988-07-01), Qureshi et al.
"A Proposed Appendix to Recommendation V. 32 Interworking Procedure with V. 22 BIS and V. 32 Modems", Study Group, XVII Geneva, 21-25, Apr. 1986.

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