Musical-output adapter for telephones

Details Musical-output adapter for telephones Musical-output adapter for telephones

1983-04-04

1984-10-30

Pellinen, A. D.

179 84R, H04M 1102

Patent

active

044801530

ABSTRACT:
A musical apparatus for use with a telephone so as to replace the ringing of the bell by providing a musical tune or melody when the telephone is activated by a caller. The apparatus includes a musical-output circuit, a speaker, and a coded control panel for selecting one of the many programmed tunes or melodies that play for a given length of time until the phone is either answered or the caller hangs up.

REFERENCES:
patent: 4251694 (1981-02-01), Taylor
Cornford, "Musical Phone Bell", Electronic Engineering, Aug. 1981, p. 19.
Georgiou, "High Isolation Ringer Replacement", Electronic Engineering, Jan. 1979, p. 17.
Dugan, "Ringer Enables Telephone to Play Simple Tune", Electronics, May 15, 1975, p. 115.

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