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US 2003/0228916 A1Published application
Optical remote controller pointing the place to reach
OwnerJanick Simerayinventor
Life of this patent
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Abstract
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 center of the image, the processing of an electronic circuit then controls the motors to compensate the variation.
Claims12
A motorized mobile toy comprising:
- four wheels;
- a remote controller which has a light source which emits, in a ground direction, a light beam which is modulated at a frequency above a domestic light frequency modulation, the remote controller configured to generate a spot on the ground;
- at least two optoelectronic sensors which are disposed on two opposite front sides of the toy, wherein reception fields of the sensors are oriented towards the ground, and are configured to deliver a control signal substantially proportional to an intensity of a flow of the modulated light which is received in the reception field;
- and
- at least one electric motor configured to receive the control signal and drive one wheel of the toy at a substantially proportional speed to the intensity of the flow of the modulated light received in the reception field, wherein a difference of the control signals delivered by two optoelectronic sensors controls a steering of the toy on a side of the optoelectronic sensor which delivers a greater control signal and a sum of the control signals delivered by two optoelectronic sensors controls a driving forward of the toy so that the toy follows and reaches the spot on the ground.
2 more elements
Dependencies are inferred from the claim text.