Starting device for a toy motor using an ultrasonic wave signal

Details Starting device for a toy motor using an ultrasonic wave signal Starting device for a toy motor using an ultrasonic wave signal

1986-06-17

1987-10-20

Shoop, Jr., William M.

Electricity: motive power systems

Supplied or controlled by space-transmitted electromagnetic...

446454, A63H 3002

Patent

active

047016817

ABSTRACT:
Disclosed is a starting device for a toy motor using an ultrasonic wave signal. The starting device comprises a transmitter external to the toy which generates an ultrasonic wave signal and a receiving and starting element disposed within the toy for receiving the transmitted ultrasonic wave signal and starting the toy motor. In a preferred embodiment, the motor drives a sound reproducing device. The ultrasonic wave signal from the transmitter is received, amplified, and detected, and when the detected output reaches a predetermined level, a switching transistor forming an energization path to the motor is turned on to start the motor. Once the motor is started, a self-holding switch associated with the switching transistor causes the switching transistor to supply continuous current to the motor even when the transmission of the ultrasonic wave signal has been terminated.

REFERENCES:
patent: 3733530 (1973-05-01), Labart et al.
patent: 3832691 (1974-08-01), Galler
patent: 4160253 (1979-07-01), Mabuchi et al.
patent: 4391224 (1983-07-01), Adler
patent: 4405924 (1983-09-01), Shinoda et al.
patent: 4467249 (1984-08-01), Swearingen
patent: 4618804 (1986-10-01), Iwasaki

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