Modem having separate modem engine and data access arrangement

Details Modem having separate modem engine and data access arrangement Modem having separate modem engine and data access arrangement

1996-10-09

1998-04-07

Kuntz, Curtis

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379 9326, 379 9305, 375222, H04M 1100

Patent

active

057373973

ABSTRACT:
A modem which is separated into two circuit boards. One board contains the modem engine, while the second board contains the codec and the DAA components. The two boards are connected using only properly isolated digital signals so that the modem engine board does not require certification, only the codec/DAA board requiring certification. The codec/DAA board is contained in a housing to provide proper high voltage protection.

REFERENCES:
patent: 3991288 (1976-11-01), George et al.
patent: 4543450 (1985-09-01), Brandt
patent: 4620294 (1986-10-01), Leung et al.
patent: 4788717 (1988-11-01), Blanchard et al.
patent: 4868863 (1989-09-01), Hartley et al.
patent: 5134648 (1992-07-01), Hochfield et al.
patent: 5245654 (1993-09-01), Wilkison et al.
patent: 5283638 (1994-02-01), Engberg et al.
patent: 5408520 (1995-04-01), Clark et al.
patent: 5457601 (1995-10-01), Georgopulos et al.
Modems: Anpassung auf franzosisch (1989).

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