Patents Assigned to VITAL BIOMEDICAL TECHNOLOGIES INC.
  • Ultrasonic motor control system and method
    Patent number: 9513620
    Abstract: A method of controlling an ultrasonic motor coupled to a motor driver circuit, comprises receiving a temperature signal representing the temperature of the ultrasonic motor, receiving a position signal output by a first encoder representing the position of the ultrasonic motor, calculating an error between the position of the ultrasonic motor represented by the position signal and a target position, calculating a control signal based on the temperature of the ultrasonic motor represented by the temperature signal and the calculated error, and sending the control signal to the motor driver circuit to control the ultrasonic motor.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: December 6, 2016
    Assignee: Vital Biomedical Technologies Inc.
    Inventors: Mohammad Ali Tavallaei, Maria Drangova
  • Control system for ultrasonic motors
    Patent number: 9344012
    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.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: May 17, 2016
    Assignee: Vital Biomedical Technologies Inc.
    Inventors: Mohammad Ali Tavallaei, Maria Drangova
  • ULTRASONIC MOTOR CONTROL SYSTEM AND METHOD
    Publication number: 20150270790
    Abstract: A method of controlling an ultrasonic motor coupled to a motor driver circuit, comprises receiving a temperature signal representing the temperature of the ultrasonic motor, receiving a position signal output by a first encoder representing the position of the ultrasonic motor, calculating an error between the position of the ultrasonic motor represented by the position signal and a target position, calculating a control signal based on the temperature of the ultrasonic motor represented by the temperature signal and the calculated error, and sending the control signal to the motor driver circuit to control the ultrasonic motor.
    Type: Application
    Filed: March 25, 2014
    Publication date: September 24, 2015
    Applicant: VITAL BIOMEDICAL TECHNOLOGIES INC.
    Inventors: Mohammad Ali TAVALLAEI, Maria DRANGOVA