Toy type children telephone set

Details Toy type children telephone set Toy type children telephone set

1987-09-30

1989-09-12

Ng, Jin F.

Telephonic communications

Supervisory or control line signaling

Signal reception at substation

379389, 379434, H04M 102

Patent

active

048667650

ABSTRACT:
A toy type children telephone set, which mainly comprises a full functional telephone printed circuit board (abbreviated TPCB thereafter). The TPCB is encased in a toy-shaped outer case, instead of a traditional ringing bell. The TPCB is provided with an IC sound generator circuit, which produces a crying, laughing, or singing sound correlating to the embodied toy shape of the outer case when this telephone set is rung. Moreover, in the audio circuit of this TPCB, it is provided with an audio signal conversion circuit, so that through a bridge inverter it controls the rotation of a permanent magnet motor, this motor in turn drives the upper and lower lips at the head portion of the toy-shaped outer case to open or close by following the audio sound signal fluctuation via a driven mechanism and leaf spring switches, which attracts the children to use this telephone set happily.

REFERENCES:
patent: H118 (1986-09-01), Biggs et al.
patent: 4707855 (1987-11-01), Pasinski et al.
patent: 4721437 (1988-01-01), Mitamura et al.
"Beardroid Phone", DAK.

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