Telephone terminal device with function for preventing unnecessa

Details Telephone terminal device with function for preventing unnecessa Telephone terminal device with function for preventing unnecessa

1994-03-31

1995-09-19

Chan, Wing F.

Telephonic communications

Telephone line or system combined with diverse electrical...

To produce visual-graphic copy

379 74, 379 77, 379102, H04M 1100

Patent

active

054523427

ABSTRACT:
In a telephone terminal device, for example, a telephone answering device, when the device receives an inadvertent facsimile signal while it is in operation, the telephone line is disengaged via a facsimile signal detecting means for the purpose of preventing unwanted utilization of the telephone line and unnecessary consumption of the recording medium.

REFERENCES:
patent: 4800439 (1989-01-01), Yoshino
patent: 4939772 (1990-07-01), Goto
patent: 5014296 (1991-05-01), Saigano
patent: 5073921 (1991-12-01), Nomura et al.
patent: 5086455 (1992-02-01), Satomi et al.
patent: 5151972 (1992-09-01), Lorenz et al.
patent: 5267301 (1993-11-01), Nishii

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