Communication method and apparatus

Details Communication method and apparatus Communication method and apparatus

1995-06-07

1996-09-10

Kuntz, Curtis

Telephonic communications

Telephone line or system combined with diverse electrical...

To produce visual-graphic copy

379 94, H04M 1100

Patent

active

055552943

ABSTRACT:
A communication apparatus capable of transmission and reception simultaneously through a plurality of communication channels of an ISDN basic interface has a communication mode which leaves at least one of the plurality of communication channels free. If this mode has been set, transmission or reception is allowed when this one communication channel among the plurality thereof is made free for the transmission or reception.

REFERENCES:
patent: 4746986 (1988-05-01), Tanigawa
patent: 4888766 (1989-12-01), Ogasawara
patent: 4951310 (1990-08-01), Honda et al.
patent: 4958343 (1990-09-01), Abramovici et al.
"Switch Access Architecture for Quad Voice Lines," IEEE Infocom '89, vol. 2, Apr. 1989, Tzung-Pao, pp. 647-654.
"Design of a PC Interface Card for Office Communications Using the ISDN Basic Access," IEEE Journal on Selected Areas in Communications, Willems, vol.7, No. 2, 1987, pp. 295-302.
European Patent Application EP 0349346. Ogawa, 379/100, Jan. 1990.

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