07693668 is referenced by 30 patents and cites 278 patents.

A system for determining airtime of a moving sportsman includes at least one accelerometer for detecting vibration or acceleration of the sportsman. A processor in communication with the at least one accelerometer processing signals from the accelerometer to determine free-fall. A pressure sensor may be used to determine change in altitude and the processor may process signals from the pressure sensor with the accelerometer signals to determine airtime and drop distance during free-fall. A method for determining airtime of a moving sportsman includes processing data from one or more accelerometers attached to the sportsman, to determine when the sportsman is in free-fall, and determining a time period corresponding to the free-fall.

Title
Impact reporting head gear system and method
Application Number
12/135893
Publication Number
7693668 (B2)
Application Date
June 9, 2008
Publication Date
April 6, 2010
Inventor
Peter Flentov
Carlisle
MA, US
Dennis Darcy
Tyngsboro
MA, US
Curtis A Vock
Niwot
CO, US
Agent
Lathrop & Gage
Assignee
PhatRat Technology
CA, US
IPC
G06F 19/00
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