| 摘要 |
The starting device comprises a transmitter external to the toy which generates an ultrasonic wave signal. A starting element is disposed within the toy for receiving the transmitted ultrasonic wave signal and starting the toy motor. The motor pref. 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 energisation 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 continous current to the motor even when the transmission of the ultrasonic wave signal has been terminated.
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