Patents by Inventor Jeff Izard

Jeff Izard 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).

  • Elevator position compensation system
    Patent number: 5747755
    Abstract: An elevator car position compensator includes a compensated position signal generator which, via a closed-loop feed-back arrangement, adjusts a true position signal by using a signal related to dynamic slip and stretch of the hoist ropes.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: May 5, 1998
    Assignee: Otis Elevator Company
    Inventors: Steven D. Coste, Jeff Izard
  • Elevator passenger detector and door control system which masks portions of a hall image to determine motion and court passengers
    Patent number: 5387768
    Abstract: Passengers approaching an elevator are distinguished from other people standing in front of an elevator door by obtaining an image signal of an area in front of the elevator door and masking out of the image signal increasing with time greater portions thereof when no motion is indicated by the image signal for controlling door movement when motion is detected in an unmasked portion of the image.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: February 7, 1995
    Assignee: Otis Elevator Company
    Inventors: Jeff Izard, Francois M. Mottier