06539336 is referenced by 352 patents.

The invention detects the loft time, speed, power and/or drop distance of a vehicle, such as a sporting vehicle, during activities of moving and jumping. A loft sensor detects when the vehicle leaves the ground and when the vehicle returns to the ground. A controller subsystem converts the sensed information to determine a loft time. A display shows the recorded loft time to a user of the system. In addition, a speed sensor can detect the vehicle's speed for selective display to the user. A power sensing section informs the user of expended energy, which can be compared to other users. A drop distance sensing unit informs the user of the peak height of a jump, during an airtime. Gaming on the internet is facilitated to connect worldwide sport enthusiasts.

Title
Sport monitoring system for determining airtime, speed, power absorbed and other factors such as drop distance
Application Number
9/89232
Publication Number
6539336 (B1)
Application Date
June 2, 1998
Publication Date
March 25, 2003
Inventor
Kevin J Grealish
Westwood
MA, US
Peter Flentov
Carlisle
MA, US
Shawn Burke
Andover
MA, US
Charles Marshall
N. Andover
MA, US
Steven Finberg
Cambridge
MA, US
Adrian F Larkin
Chelmsford
US
Perry Youngs
Mattishal
US
Andrew Bodkin
Needham
MA, US
Dennis Darcy
Dracut
MA, US
Curtis A Vock
Charlestown
MA, US
Agent
Lathrop & Gage L C
US
Agent
Curtis A Vock
US
Assignee
PhatRat Technologies
CO, US
IPC
G01L 3/24
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