Patent ID: 8491402

Claim:
A control method for an infant and child swing, comprising the steps of: (1) moving a sensor to a reference point at a swing angle of the infant and child swing; (2) inputting a voltage to a motor to drive a swing arm of the infant and child swing for moving toward the reference point in a first direction; (3) generating a signal when the swing arm arrived and detected by the sensor at the reference point; (4) interrupting the voltage to the motor, and permitting the swing arm to move freely and upwardly by the inertial force of the infant and child swing; (5) inputting an opposite voltage to the motor to drive the swing arm in a second direction for less than a time length of half current swing cycle, after the swing arm being pulled and swung back by the gravity force to the second direction; and (6) repeating the steps of (2) to (5), after the infant and child swing being pulled by the gravity and swung back from the second direction to the first direction.