Telephone alarm

Details Telephone alarm Telephone alarm

1993-12-13

1994-12-13

Miska, Vit W.

Horology: time measuring systems or devices

Combined with disparate device

Telephone

368 73, 368250, 379 38, 379 40, 379110, G04B 4702, G04B 2302, H04M 1104

Patent

active

053734882

ABSTRACT:
An alarm clock produces a wake-up sound by simulating an incoming telephone and causing the telephone to ring. The alarm clock has a timing device for generating an alarm signal at a programmable time instant and a circuit responsive to the alarm signal for sending a signal simulating a standard incoming telephone signal to the telephone through a standard interface of the telephone.

REFERENCES:
patent: D297428 (1988-08-01), McElroy
patent: D323655 (1992-02-01), Bethea et al.
patent: 3029593 (1962-04-01), Gerace
patent: 3733440 (1973-05-01), Sides
patent: 3943288 (1976-03-01), Reed et al.
patent: 4072825 (1978-02-01), McLay et al.
patent: 4406925 (1983-09-01), Jordan et al.
patent: 4924499 (1990-05-01), Serby
patent: 4994908 (1991-02-01), Kuban et al.
patent: 5128979 (1992-07-01), Reich et al.

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