Patents by Inventor Demian Shaft Raven

Demian Shaft Raven 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).

  • Determining and controlling propeller speeds using imaging devices
    Patent number: 10896512
    Abstract: An aerial vehicle outfitted with one or more cameras captures a sequence of images of a rotating propeller. The images are processed according to one or more techniques to recognize a position of the propeller, or an angle of orientation of the propeller, in each of the images. The positions or angles of the rotating propeller are used to calculate a rotational speed of the propeller, or a direction of rotation of the propeller. The cameras used to capture the images are also available for use in other applications such as navigation, monitoring or collision avoidance. The propeller may include one or more stripes, colors, characters, symbols or other markings to enhance its visibility and facilitate the determination of positions or angles of the propeller within images.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: January 19, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Joseph Rutland, Demian Shaft Raven