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:
Oct. 09, 2001
Filed:
Dec. 10, 1999
Khosrow Mohajerani, Newbury Park, CA (US);
Joseph M. Sampietro, Tarzana, CA (US);
Anoush M. Fard, Agoura Hills, CA (US);
Jeffrey G. Barina, Somis, CA (US);
Muhammad A. Hawwa, Simi Valley, CA (US);
LeRoy A. Volz, Northridge, CA (US);
Tien Q. Le, Camarillo, CA (US);
Daniel R. Vigil, Agoura Hills, CA (US);
Seagate Technology LLC, Scotts Valley, CA (US);
Abstract
A system for positioning a transducing head in a disc drive device over a selected track of a rotatable disc includes an actuator arm which is rotatable about an axis, a head suspension mechanism connected to the actuator arm, and a slider carrying a transducing head and supported by the head suspension mechanism. A low resolution motor moves the actuator arm about the axis to effect coarse movement of the head between tracks of the disc. A piezoelectric element is embedded in the actuator arm to distort the arm to effect fine positioning of the head. Control circuitry distributes electrical signals to the low resolution motor and the piezoelectric element to selectively control movement thereof. The piezoelectric element is embedded in the actuator arm by removing a predetermined amount of material from the actuator arm and bonding the piezoelectric element in the resulting space in the actuator arm.