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.:

US 8154817 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 10, 2012

Filed:

Sep. 08, 2009
Applicant:

Douglas M. Carson, Cushing, OK (US);

Inventor:

Douglas M. Carson, Cushing, OK (US);

Assignee:

Doug Carson & Associates, Inc., Cushing, OK (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 21/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

Method and apparatus for compensating for differences in translation path geometries of transducers used to access a data storage medium. A compensation profile is generated in relation to radial error between a first translation path geometry of a first transducer and a different, second translation path geometry of a second transducer. A control circuit directs the first transducer to write data to a rotatable data storage medium in relation to the compensation profile to emulate the second translation path geometry. In some embodiments, the control circuit comprises a data signal clock generator, a motor rotation clock generator, and a transducer radial translation clock generator. A nearest pulse detector identifies a closest clock signal pulse to a once-per-revolution (OPR) rotational reference, and the control circuit adjusts a frequency of the associated clock signal coincident with the closest pulse.


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Carson, Douglas. (2012). Compensation for different transducer translation path geometries (U.S. Patent No. 8154817). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8154817

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