The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2008
Filed:
Dec. 02, 2005
Yunfeng LI, San Jose, CA (US);
Erhard Schreck, San Jose, CA (US);
Wei Guo, Fremont, CA (US);
Tim Glassburn, Milpitas, CA (US);
Mark Heimbaugh, Pleasonton, CA (US);
William Flynn, San Jose, CA (US);
Oliver Northrup, Mountain View, CA (US);
John E. Scura, Paso Robles, CA (US);
Lin Guo, Saratoga, CA (US);
Xiaokun Chew, San Juan Capistrano, CA (US);
Yunfeng Li, San Jose, CA (US);
Erhard Schreck, San Jose, CA (US);
Wei Guo, Fremont, CA (US);
Tim Glassburn, Milpitas, CA (US);
Mark Heimbaugh, Pleasonton, CA (US);
William Flynn, San Jose, CA (US);
Oliver Northrup, Mountain View, CA (US);
John E. Scura, Paso Robles, CA (US);
Lin Guo, Saratoga, CA (US);
Xiaokun Chew, San Juan Capistrano, CA (US);
Maxtor Corporation, Longmount, CO (US);
Abstract
A system provided for protecting a disk drive from impact damages. More specifically, a disk drive is provided that includes an accelerometer interconnected to a printed circuit board that detects free fall of the disk drive. In addition, the velocity of spinning disks of the disk drive is also monitored to assess changes in velocity thereof that may indicate the presence of a tumbling condition. Furthermore, the change in acceleration measured by the accelerometer is monitored to prevent false indications of free fall due to common vibrations. Thus an enhanced system is provided that protects disk drives from the effect of free falls under a wide variety of conditions and allowing for drops from shorter distances to be identified.