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:
May. 17, 2016
Filed:
Feb. 11, 2013
Applicant:
University of Western Ontario, London, CA;
Inventors:
Mohammad Ali Tavallaei, London, CA;
Maria Drangova, London, CA;
Assignee:
Vital Biomedical Technologies Inc., London, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/04 (2006.01); H02N 2/00 (2006.01); H02N 2/14 (2006.01);
U.S. Cl.
CPC ...
H02N 2/001 (2013.01); H02N 2/142 (2013.01);
Abstract
A method for controlling an ultrasonic motor coupled to a motor driver circuit, comprises obtaining a position of a first encoder coupled to the ultrasonic motor, calculating an error between the position of the first encoder and a target position, and sending a control signal to the motor driver circuit to control the ultrasonic motor to adjust the position of the first encoder based the calculated error.