Patents by Inventor Jean-Baptiste Lanfrey

Jean-Baptiste Lanfrey 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).

  • METHOD OF PILOTING A ROTARY-WING DRONE WITH AUTOMATIC STABILIZATION OF HOVERING FLIGHT
    Publication number: 20110049290
    Abstract: This method, applicable in particular to radio-controlled toys comprises the operations consisting in: fitting the drone with a telemeter and a video camera; acquiring the altitude of the drone relative to the ground by means of a telemeter; acquiring the horizontal speed of the drone; and automatically stabilizing the drone in hovering by: servo-controlling the vertical thrust force of the drone so as to stabilize the altitude acquired by the telemeter; and servo-controlling the horizontal thrust force of the drone so as to obtain zero horizontal speed. The video camera is a front-sight camera pointing towards the front of the drone; and the horizontal speed of the drone is acquired from a plurality of video images captured by said front-sight camera.
    Type: Application
    Filed: January 21, 2009
    Publication date: March 3, 2011
    Applicant: PARROT
    Inventors: Henri Seydoux, Martin Lefebure, Francois Callou, Claire Jonchery, Jean-Baptiste Lanfrey