A disk drive can include a data storage disk, a head, an acceleration sensor, and a controller. The head is configured to write data on the disk. The acceleration sensor generates an acceleration signal that is indicative of acceleration of the disk drive. The controller determines when the disk drive...http://www.google.com.au/patents/US7633698?utm_source=gb-gplus-sharePatent US7633698 - Controlling a write inhibit threshold based on vibration
