Power management of a system for measuring the acceleration of a body part
US7526389B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2005 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Nov 16, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2243/007
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides an apparatus and method for determining the magnitude of linear and rotational acceleration of an impact to a body part. The apparatus can be used with protective sports equipment, such as a sports helmet, wherein the apparatus includes a battery, a number of accelerometers positioned proximate to the outer surface of the head, and an electronic device with a processor and a transmitter to transmit data received from the accelerometers. To maximize the battery life and minimize power consumption by the electronic device, the apparatus includes a power management system with a sensor assembly. The sensor assembly sends a first signal to the electronic device to initiate operation when the sensor assembly detects the presence of an object with the helmet, and a second signal to the electronic device to cease operation when the sensor assembly detects the absence of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.