Facsimile machine using ISDN basic interface

Details Facsimile machine using ISDN basic interface Facsimile machine using ISDN basic interface

1989-12-04

1994-01-11

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Facsimile system interface

358434, 3701101, H04N 100, H04J 312

Patent

active

052786650

ABSTRACT:
A facsimile machine in conformity with an information services digital network (ISDN) basic interface having a single signal channel and two information channels, includes a communication circuit, which has a first device of exchanging transmission and reception image signals with an ISDN through one of the two information channels (B-channels), a second device of exchanging the transmission and reception image signals with the ISDN through the other information channel, a third device of separately establishing the two information channels through the single signal channel, and a fourth device of controlling the first and second devices to independently exchange the transmission and reception image signals with the ISDN in parallel.

REFERENCES:
patent: 4888766 (1989-12-01), Ogasawara
patent: 4961185 (1990-10-01), Sawada
patent: 4970723 (1990-11-01), Lin
patent: 5146349 (1992-09-01), Mori

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