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US 2019/0188922 A1Published application
Device for measuring passing time of runner
AssigneeYy-Factory Inc.
InventorYoshiyuki YANAGIMOTO
Life of this patent
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Abstract
To provide a device for measuring a time of passage that is capable of sensing passage of the torso more accurately than a photoelectric cell while maintaining the ease of use of a photoelectric cell, passage of a runner is sensed by causing the upper portion of the body of the runner to be broadly illuminated by infrared light, visible light, and/or other such electromagnetic waves, and by detecting light reflected from large part(s) of the body of the runner.
Claims4
A device for measuring a time of passage of a runner comprising:
- an illumination device that provides illumination by infrared and/or visible light, a light-receiving device that detects infrared and/or visible light, a communication device, a timer that measures a time, and a display device that displays the time;
- wherein infrared and/or visible illumination provided by the illumination device is reflected from the body of a runner traveling therepast, passage of the runner is sensed as a result of detection of reflected infrared and/or visible light by the light-receiving device, sensed information is conveyed to the timer by way of the communication device, the time of passage of the runner is measured by the timer in correspondence to the sensing, and the display device is a device that displays the measured time;
- wherein the illumination device provides infrared and/or visible illumination extending across a region that is greater than or equal to the area of the palm of the hand of the runner at a location passed through by the runner;
- and wherein passage of the runner is sensed when the light-receiving device detects electric power produced by reflected infrared and/or visible light that is greater than or equal to a prescribed value.
1 more element
Dependencies are inferred from the claim text.