Pulse or digital communications – Transceivers – Modems
Reexamination Certificate
1997-06-17
2001-01-23
Pham, Chi H. (Department: 2731)
Pulse or digital communications
Transceivers
Modems
Reexamination Certificate
active
06178199
ABSTRACT:
BACKGROUND OF THE INVENTION
FIELD OF THE INVENTION
The invention relates to communications and, more particularly, to modem-to-modem communications which utilize extensions to the International Telecommunications Union (ITU) Draft Recommendation V.8 bis.
DESCRIPTION OF RELATED ART
Computers and modems are well-known in the art. They are frequently utilized together to provide communications between one terminal or computer equipped with a modem and a different computer similarly equipped.
SUMMARY OF THE INVENTION
The invention relates to methods, apparatus, systems and computer program products for permitting a DTE to configure a DCE and for permitting a DCE to conduct V.8 bis negotiations with other stations. The syntax disclosed is such that DCE V.8 bis extension code does not need to be re-written when additional modem functionality is added.
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“XIRCOM Technical Bulletin Technology Background”, Jan. 7, 1997, pp. 1-4, XP-002084811, www.xircom.con./tech/helpdocs/4049.html.
V. Brut{acute over (e)} De R{acute over (e)}mur et al., “Sematrans 256: how to transmit at 32 kbit/s on the telephone network”, Commutation et Transmission, vol. 17, No. 1, Jan. 1995, pp. 27-34.
Bayard Emmanuel
Cirrus Logic Inc.
Pham Chi H.
Rutkowski Peter
Stewart David L.
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