Telephone interface for a computer for receiving and transmittin

Details Telephone interface for a computer for receiving and transmittin Telephone interface for a computer for receiving and transmittin

1990-09-27

1992-05-26

Dwyer, James L.

Telephonic communications

Telephone line or system combined with diverse electrical...

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

379 90, 379 93, 379201, 379442, H04M 1100

Patent

active

051174529

ABSTRACT:
A telecommunications signalling interface for computer systems is presented. Control and information signals from the telephone switch are received, decoded, and converted to a standard interface format for retransmission to the computer. Control and information signals from the computer are received and converted to a standard format for transmission to the telephone switch. The power supply for the device is derived from the telephone network and the computer interface.

REFERENCES:
patent: 4543450 (1985-09-01), Brandt
patent: 4551581 (1985-11-01), Doughty
patent: 4578533 (1986-03-01), Pierce
patent: 4578541 (1986-03-01), Dodds
patent: 4582956 (1986-04-01), Doughty
patent: 4640989 (1987-02-01), Riner
patent: 4748656 (1988-05-01), Gibbs et al.
patent: 4776005 (1988-10-01), Petriccione
patent: 4860342 (1989-08-01), Danner
patent: 4897866 (1990-01-01), Majmudar et al.
patent: 5001710 (1991-03-01), Gawrys et al.

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