|7147535||Optical remote controller pointing the place to reach|
A motorized mobile toy remote controlled by light beams. The remote control projects a spot on the ground, the toy, equipped with optical sensors, follows the spot. The optical sensor delivers instructions on the variation of the position of the spot compared to the...
|5270623||Method of controlling speed of rotation of motor|
A method for controlling the speed of rotation of a motor by changing the resistance value of a resistor circuit connected in series to the motor and having discontinuous resistance values, including the steps of applying voltage across the motor. Detecti...