Reaction time measurement system

Communications: electrical – Condition responsive indicating system – Specific condition

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Details

340323R, 340539, 482 8, 482 19, G08B 2300

Patent

active

060023368

ABSTRACT:
The present invention provides a reaction time measurement system that includes a hard-wired or battery-powered accelerometer module attached to a starting block or platform to detect acceleration when a contestant moves. Although the block is grossly stationary, it undergoes slight movement and mechanical vibration, so the accelerometer produces an output signal. A filter or a processing unit in the module processes the output signal to define the reaction time or moment when the athlete starts to leave the block. Preferably the module removably attaches to the starting block by a rigid coupling, and its processor stores and annotates the accelerometer signal. A link or connector signals the reaction time, or the stored signal on request, to a central monitor at which false start detection determination are made and records created. The module may be used as an individual training device, in which a runner's readiness and take-off impulse are analysed as a reaction waveform, or his reaction time and starting speed recorded. For use in a track system, multiple separately addressed modules each annotate the accelerometer signal trace with one or more externally applied or synchronized timing marks.

REFERENCES:
patent: 3724843 (1973-04-01), Fichter et al.
patent: 3731298 (1973-05-01), Weidacher
patent: 5467652 (1995-11-01), Richards
"Calling time on jumping the gun," received Feb. 9, 1996.
Intersoft Electronics, "False start detection system," http://intersoft-electronics.com/sport/falsestart/falsestart.htm, Nov. 12, 1998.
Intersoft Electronics, "False Start," Brochure.
Seiko, "Starting System," Informational advertisement.
Sollicitation letter from Warren Gillete to Douglas De Angelis with product resume attached, Jun. 5, 1998.
Sollicitation letter from Allan Kirson to Paul Lambert, Feb. 24, 1998.

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