Detection system for detecting a position of a ball on a roulette wheel
First Claim
1. A method of detecting a position of a ball on a roulette wheel with a rotatable cylinder comprising the steps of:
- illuminating a numbers ring of the cylinder with light from two spatially displaced light sources;
illuminating a ring of pockets of the cylinder with light to detect a presence of the ball;
sensing reflections of the illuminating light by the numbers ring, the ring of pockets and the ball; and
analyzing the reflections to determine an angular position of the cylinder within the wheel and the location of the ball relative thereto, wherein the illuminating light is of at least one specific wavelength which has been modulated, and the sensed reflections comprise at least one similarly modulated wavelength, said wavelength being predetermined dependent on the relative chrominance of the rotatable cylinder.
3 Assignments
0 Petitions
Accused Products
Abstract
A detection system for detecting the position of an object of a movable member and, In particular, for detection the position of a ball in a moving roulette wheel which has a light source for emitting visible light which is modulated. A sensor is provided to receive reflections of the emitted modulated light from the ball and the moving roulette wheel. The reflections are analyzed to determine the position of the member and the location of the objection in relation thereto. The light source can transmit light and the sensor can detect specific similarly modulated wavelengths which are predetrmined dependent upon the relative chrominance of the number ring and the pocket ring of the wheel.
136 Citations
16 Claims
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1. A method of detecting a position of a ball on a roulette wheel with a rotatable cylinder comprising the steps of:
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illuminating a numbers ring of the cylinder with light from two spatially displaced light sources; illuminating a ring of pockets of the cylinder with light to detect a presence of the ball; sensing reflections of the illuminating light by the numbers ring, the ring of pockets and the ball; and analyzing the reflections to determine an angular position of the cylinder within the wheel and the location of the ball relative thereto, wherein the illuminating light is of at least one specific wavelength which has been modulated, and the sensed reflections comprise at least one similarly modulated wavelength, said wavelength being predetermined dependent on the relative chrominance of the rotatable cylinder. - View Dependent Claims (2, 3, 4, 5)
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6. A roulette wheel comprising:
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a static outer portion within which is mounted a rotatable cylinder with an outer numbers ring and a ring of pockets; and a detection means mounted on the outer portion for detecting a location of a roulette ball in relation to the wheel, said detection means comprising; a light source operative to emit visible light which is directed at the numbers ring and the ring of pockets, said light source having at least one specific wavelength which is modulated and predetermined dependent on a relative chrominance of the rotatable cylinder and the ball; a sensor means operative to receive light reflected by the rotatable cylinder and the ball located thereon, said sensor means for detecting at least one modulated wavelength similar to said at least one specific wavelength emitted by the light source; and means for analyzing the reflected light to determine a position of the rotatable cylinder and the location of the ball in relation thereto. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification