Combination device including fax means and telephone means and i

Details Combination device including fax means and telephone means and i Combination device including fax means and telephone means and i

1998-08-26

1999-12-21

Chan, Wing F.

Telephonic communications

Telephone line or system combined with diverse electrical...

To produce visual-graphic copy

358442, H04M 1100

Patent

active

060059249

ABSTRACT:
A fax and phone combination device. The combination device is coupled to an external phone. From a phone line, the combination device receives a call signal, a fax signal, and an information signal. The call signal precedes the fax signal and the information signal. The combination device comprises a fax, an internal phone, and a call signal processor. The call processor processes the call signal received by the combination device and produces a first ringing signal from the call signal. The first ringing signal is intended for the internal phone. The combination device further comprises a ringing signal generator for generating a second ringing signal that is intended for the external phone, and a switch coupled to the fax, the internal phone, and the call processor. A call pulse in the call signal causes the switch to switch the combination device in a simulated receiving mode. In the simulated receiving mode, the fax signal detector detects whether the fax signal is present. If the fax signal is present, the fax signal is routed to the fax. If no fax signal is present, the second ringing signal is routed to the external phone.

REFERENCES:
patent: 5014296 (1991-05-01), Saigano
patent: 5877872 (1999-03-01), Nomura et al.

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