Speedometer for in-line skates
First Claim
1. A speedometer system for skates comprising:
- a roller skate including a sole with first and second opposed major surfaces and a plurality of wheels rollably attached to said second major surface;
transducer means, disposed in said roller skate, for producing electrical pulses in response to a rotational movement of said plurality of wheels;
means, in communication with said transducer means, for converting said electrical pulse into digitized data related to said rotational movements of said plurality of wheels;
a transmitter, disposed in said roller skate, for receiving said digitized data and emitting corresponding signals containing said digitized data;
wireless receiver means, in communication with said transmitter, for receiving said signals;
means, in communication with said receiver means, for processing said signals to produce information related to said rotational movement, said information including an angular velocity of said wheels;
display means, in electrical communication with said receiver means, for producing a real-time visual representation of said information; and
a housing containing said processing means and said display means.
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Accused Products
Abstract
An in-line roller skate includes a transducer portion capable of sensing the rotary movement of at least one wheel on the roller skate and transmitting information concerning the same to a receiver worn on a user'"'"'s wrist. In the preferred embodiment, the transducer portion includes a magnet attached to one of the plurality of wheels and a sensor positioned in a shoe portion to detect the magnet and produce electrical pulses containing information corresponding to the angular velocity of the wheel. The transducer portion also includes a micro-controller, a transmitter and an antenna. The micro-controller creates a digital data stream containing information corresponding to the angular velocity of the wheel, which is then modulated onto a carrier wave produced by the transmitter. The transmitter transmits the coded signals to the receiver. The receiver demodulates the carrier wave, reproducing the digital data stream. A microprocessor processes the modulated signals and drives the display to produce a real time visual representation of selected portions of information contained in the digital data stream, including speed and distance travelled by the skate.
205 Citations
24 Claims
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1. A speedometer system for skates comprising:
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a roller skate including a sole with first and second opposed major surfaces and a plurality of wheels rollably attached to said second major surface; transducer means, disposed in said roller skate, for producing electrical pulses in response to a rotational movement of said plurality of wheels; means, in communication with said transducer means, for converting said electrical pulse into digitized data related to said rotational movements of said plurality of wheels; a transmitter, disposed in said roller skate, for receiving said digitized data and emitting corresponding signals containing said digitized data; wireless receiver means, in communication with said transmitter, for receiving said signals; means, in communication with said receiver means, for processing said signals to produce information related to said rotational movement, said information including an angular velocity of said wheels; display means, in electrical communication with said receiver means, for producing a real-time visual representation of said information; and a housing containing said processing means and said display means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A speedometer system for skates comprising:
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a roller skate including a sole with first and second opposed major surfaces and a plurality of wheels rollably attached to said second major surface; transducer means for converting rotations of one of said plurality of wheels to electrical pulses means, coupled to receive said pulses, for computing an angular velocity based on said pulses and for producing a digital data signal containing computed angular velocities, said producing means positioned proximate to said first major surface; receiver means, in wireless communication with said producing means, for receiving said digital data signal; means, in communication with said receiver means, for processing said digital data signal to produce information related to said rotational movement, said information including a distance traversed by said roller skate; display means, coupled to receive said information from said processing means, for producing a real-time visual representation of selected portions of said information; and a wrist-mounted housing containing said receiver means, said processing means, and said display means. - View Dependent Claims (16, 17, 18, 19)
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20. A speedometer system for a roller skate comprising:
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a roller skate having first and second opposed major surfaces with a plurality of wheels rollably attached to said second major surface and coaxially aligned along a longitudinal axis of said roller skate; transducer means for detecting rotation of one of said plurality of wheels and producing electrical pulses in response thereto; computer means for computing an angular velocity based on said pulses; transmitter means, attached to said roller skate, for modulating a carrier wave with a digital representation of said computed angular velocity; receiver means, in radio communication with said transmitter means, for receiving and demodulating said carrier wave, thereby reproducing said digital representation of said angular velocity; means, electronically coupled to said receiver means, for processing said digital representation to produce information corresponding to said angular velocity, said information including velocity of said roller skate; and display means, in electrical communication with said processing means, for producing a real-time visual representation of selected portions of said information. - View Dependent Claims (21, 22, 23, 24)
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Specification