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:
Aug. 15, 2006
Filed:
Jun. 23, 2004
James H. Eaton, Morgan Hill, CA (US);
Darrell G. Follett, San Jose, CA (US);
David H. Harper, San Jose, CA (US);
Wayne I. Imaino, San Jose, CA (US);
Leif S. Kirschenbaum, San Francisco, CA (US);
Andrew J. Mckee, San Jose, CA (US);
Luis H. Palacios, Mountain View, CA (US);
James H. Eaton, Morgan Hill, CA (US);
Darrell G. Follett, San Jose, CA (US);
David H. Harper, San Jose, CA (US);
Wayne I. Imaino, San Jose, CA (US);
Leif S. Kirschenbaum, San Francisco, CA (US);
Andrew J. McKee, San Jose, CA (US);
Luis H. Palacios, Mountain View, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system and method for analyzing a coil actuator of a type having a coil and a magnet. A current source selectively applies a first current to a coil of a coil actuator for setting a moveable part of the coil actuator to a first position. A recording system captures data corresponding to a back electromotive force voltage produced by oscillation of the coil actuator upon movement of the moveable part of the coil actuator to a second position. A processor applies a curve fit to the back electromotive force data for calculating a frequency characteristic and damping response of the coil actuator.