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 7421359 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 02, 2008

Filed:

Jun. 05, 2006
Applicants:

Brent Jay Harmer, Johnstown, CO (US);

Karwei Koay, Erie, CO (US);

Inventors:

Brent Jay Harmer, Johnstown, CO (US);

KarWei Koay, Erie, CO (US);

Assignee:

Seagate Technology LLC, Scotts Valley, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 13/04 (2006.01); G06F 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A Bemf detect circuit is configured for modeling Bemf error via calculation of time correlations associated with two or more different non-calibrated sense resistor gain values to derive a calibrated sense resistor gain value. A method is provided for calibrating a Bemf detector circuit by setting a sense resistor gain to a plurality of different gain values, observing Bemf sample values for each of the gain values, and deriving a calibrated gain value by non-iteratively modeling the relationship between the gain values and the associated Bemf sample values.


Find Patent Forward Citations

Quick Actions:

Harmer, Brent. (2008). Detecting back electromotive force voltage (U.S. Patent No. 7421359). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7421359

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…