| US 7,457,719 B1 | ||
| Rotational insensitivity using gravity-based adjustment | ||
| Philippe Kahn, Aptos, Calif. (US); Arthur Kinsolving, Santa Cruz, Calif. (US); Mark Andrew Christensen, Santa Cruz, Calif. (US); and Brian Y Lee, Aptos, Calif. (US) | ||
| Assigned to Fullpower Technologies, Inc., Santa Cruz, Calif. (US) | ||
| Filed on Nov. 21, 2006, as Appl. No. 11/603,472. | ||
| Int. Cl. G01P 15/00 (2006.01) | ||
| U.S. Cl. 702—141 | 43 Claims |
| 1. A method of determining an orientation of an accelerometer, comprising:
creating one or more rolling averages of accelerations over a sample period;
identifying a gravitational influence based upon the one or more rolling averages of accelerations; and
assigning a dominant axis based upon the gravitational influence, wherein assigning the dominant axis comprises identifying
an axis that has a largest average acceleration over the sample period.
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