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:
Jul. 23, 2002
Filed:
Dec. 17, 1997
Mark W. Heaton, Dallas, TX (US);
Michael K. Masten, Plano, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A hard disk drive system ( ) includes a rotating magnetic disk ( ), and a support arm ( ) which is supported for movement relative to the disk under control of a voice coil motor ( ). a microactuator ( ) supports a read/write head ( ) on the support arm for movement relative thereto a control arrangement ( ) controls the voice coil motor and the microactuator in response to position information ( ), which is read by the read/write head from the disk and which indicates the position of the read/write head relative to the disk. The system is free of a sensor for detecting the actual position of the support arm relative to the read/write head or the disk.