1. Instrumented Football Helmet

2. Patent Liability
Data Collection : Accelerometers mounted inside the football helmet measure impacts.
Data Recording : Data from the accelerometers are stored on a mass memory device.
Notification : Officials are notified upon a possible injury.

3. Riddell Revolution HITS Helmet
Similar Product:
Riddell Revolution HITS Helmet
Electronics:
Physical Helmet:
D465067
D475486
D492818
D528705

4. Riddell Inc. HITS Helmet
US Patent:
Riddell Inc. HITS Helmet
System and method for measuring the linear and rotational acceleration of a body part.
Filled October 10, 2001
Patent covers the position of accelerometers around the head.
Patent covers algorithm used to calculate impact levels from single axis-accelerometers.

5. Riddell Inc. HITS Helmet
US Patent:
Riddell Inc. HITS Helmet
Accelerometer placement for best accuracy (spaced 120o°apart).
Each accelerometer’s data is fed into an equation that generates a cosine wave and compares them to known data. One is chosen as a best fit using least squares regression techniques.
Impact location, direction, and magnitude is found from this algorithm.

6. Riddell Inc. HITS Helmet
Patent Liability: ( )
Riddell Inc. HITS Helmet
Possible literal infringement.
We have 3 accelerometers placed throughout the helmet at the 0o, 120o, -120o locations.
We do not use a cosine best fit method.
We do not use single-axis accelerometers.
Solution:
Keep 3 accelerometers but place them at different locations. Maybe 0o, 140o, -140o.
Increase the number of accelerometers.

7. Head Acceleration-monitoring Technology (HAT)
US Patent:
Head Acceleration-monitoring Technology (HAT)
Helmet system including at least three accelerometers and mass memory and method for recording in real-time orthogonal acceleration.
Filled June 11, 1997
Recording head movement during a sport or other activity into mass memory for later study.
Memory can be local or sent wirelessly to another device’s storage medium.

8. Head Acceleration-monitoring Technology (HAT)
Patent Liability: ( )
Head Acceleration-monitoring Technology (HAT)
Possible literal infringement.
We do record all significant head movement onto a removable memory card. Data is time stamped for future reference and study.
Solution:
Remove the ‘record threshold’ and only record impacts that trigger a sideline alert.
Limit the user from setting the trigger threshold too low.
Do not store raw data, only calculated results.

9. Helmet-mounted Injury Notification System
US Patent:
Helmet-mounted Injury Notification System
A signaling device is installed in headwear and includes sensing devices for detecting linearly and rotationally directed impacts above a selected magnitude.
Filled December 20, 1995
Uses LEDs mounted on helmet to notify officials, players, coach or other supervisor when a player is potentially injured.

10. Helmet-mounted Injury Notification System
Patent Liability ( ):
Helmet-mounted Injury Notification System
Possible infringement under doctrine of equivalence.
The Instrumented Football Helmet impact notification feature does not use any perceivable light or audio signals.
Solution:
Possible licensing or royalty fees.

11. Questions?