Apparatus and methods for preventing disconnection of facsimile

Telephonic communications – Telephone line or system combined with diverse electrical... – To produce visual-graphic copy

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37910009, 379 9305, 370282, H04M 1100

Patent

active

058355790

ABSTRACT:
Facsimile transmission apparatus for transmitting and receiving facsimile messages over a network, the apparatus comprising a facsimile transmission control device operative, upon occurrence of a network transmission delay which would otherwise cause an associated local facsimile device to disconnect, to supply at least one disconnection-preventing signal to the associated local facsimile device until a signal arrives from a remote facsimile device via the network and the switchboard, a switchboard interface operative to interface between said facsimile transmission control device and the switchboard and a network interface operative to interface between said facsimile transmission control device and the network.

REFERENCES:
patent: 5018022 (1991-05-01), Tatsumi
patent: 5282238 (1994-01-01), Berland
patent: 5291546 (1994-03-01), Giler et al.
patent: 5448378 (1995-09-01), Matsumoto
patent: 5509050 (1996-04-01), Berland
patent: 5513212 (1996-04-01), Bremer
patent: 5515178 (1996-05-01), Dimolitsas et al.
patent: 5535014 (1996-07-01), Sommer
patent: 5561844 (1996-10-01), Jayapalan et al.

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