Patents by Inventor Brian M. Tulkki

Brian M. Tulkki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Systems and methods for measuring rotational speed and position of a rotating device
    Patent number: 8334687
    Abstract: A system includes a transceiver module and a rotating device. The transceiver module generates an electromagnetic (EM) field using an antenna. The rotating device includes N transponders arranged such that each of the N transponders passes through the EM field during one revolution of the rotating device. Each of the N transponders damps the EM field when passing through the EM field. The transceiver module determines a rotational speed of the rotating device based on a number of times the EM field is damped during a period. N is an integer greater than or equal to 1.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: December 18, 2012
    Inventors: Qi Ma, Brian M. Tulkki
  • SYSTEMS AND METHODS FOR MEASURING ROTATIONAL SPEED AND POSITION OF A ROTATING DEVICE
    Publication number: 20100308799
    Abstract: A system includes a transceiver module and a rotating device. The transceiver module generates an electromagnetic (EM) field using an antenna. The rotating device includes N transponders arranged such that each of the N transponders passes through the EM field during one revolution of the rotating device. Each of the N transponders damps the EM field when passing through the EM field. The transceiver module determines a rotational speed of the rotating device based on a number of times the EM field is damped during a period. N is an integer greater than or equal to 1.
    Type: Application
    Filed: October 7, 2009
    Publication date: December 9, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Qi Ma, Brian M. Tulkki