Pulse or digital communications – Transceivers – Modems
Patent
1997-01-08
1998-12-22
Chin, Stephen
Pulse or digital communications
Transceivers
Modems
379 9332, H04L 2910
Patent
active
058526315
ABSTRACT:
A system and method for establishing a link layer connection between a calling modem having a plurality of possible first physical layer modulations and one or more possible link layer connections and an answering modem having a plurality of possible second physical layer modulations and one or more possible link layer connections comprising the steps of establishing a physical layer connection between the calling and the answering modems, wherein the physical layer connection is based on a negotiated physical layer modulation chosen from the first and second physical layer modulations, and establishing link layer connection based upon said negotiated physical layer modulation. The link layer connection includes parameters that are preset to default values based upon the negotiated physical layer connection. Thus, the modems are able to avoid the link layer negotiation, thereby providing a faster and more robust connection.
REFERENCES:
patent: 4905282 (1990-02-01), McGlynn et al.
patent: 4931250 (1990-06-01), Greszczuk
patent: 5317594 (1994-05-01), Goldstein
patent: 5425080 (1995-06-01), Abbie
patent: 5491720 (1996-02-01), Davis et al.
patent: 5710761 (1998-01-01), Scott
Chin Stephen
Gluck Jeffrey W.
Paradyne Corporation
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