Patents by Inventor Mark D. Welch

Mark D. Welch 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).

  • Patent number: 10773083
    Abstract: Systems and methods for detecting and displaying obstacles to visually impaired persons are disclosed. Images from a captured scene are analyzed to detect obstacles. A V-Disparity algorithm is employed to detect the ground plane and remove it from the images, thereby enhancing the capacity of retinal implants to display only obstacles. The system includes cameras to capture images; a processor with memory to detect obstacles in the captured images, to remove a ground plane, and to calculate a map of pixels representing the obstacles; and a retinal implant configured to receive the map of pixels and display the obstacles to a system user by electrically stimulating retinal nerves. The method includes synchronizing captured images and calculating a disparity map between the captured images to detect obstacles and remove a ground plane from processed images. A map of pixels representing the obstacle is transmitted to a retinal implant.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: September 15, 2020
    Assignee: Second Sight Medical Products, Inc.
    Inventors: Robert J. Greenberg, Arup Roy, Avraham I Caspi, Uday Patel, Mark D Welch
  • Publication number: 20160317811
    Abstract: Systems and methods for detecting and displaying obstacles to visually impaired persons are disclosed. Images from a captured scene are analyzed to detect obstacles. A V-Disparity algorithm is employed to detect the ground plane and remove it from the images, thereby enhancing the capacity of retinal implants to display only obstacles. The system includes cameras to capture images; a processor with memory to detect obstacles in the captured images, to remove a ground plane, and to calculate a map of pixels representing the obstacles; and a retinal implant configured to receive the map of pixels and display the obstacles to a system user by electrically stimulating retinal nerves. The method includes synchronizing captured images and calculating a disparity map between the captured images to detect obstacles and remove a ground plane from processed images. A map of pixels representing the obstacle is transmitted to a retinal implant.
    Type: Application
    Filed: September 15, 2015
    Publication date: November 3, 2016
    Inventors: Robert J. Greenberg, Arup Roy, Avraham I. Caspi, Uday Patel, Mark D. Welch
  • Patent number: 7507569
    Abstract: Novel subtilases having an improved wash performance on egg stains are disclosed. These subtilases are useful exhibiting excellent or improved wash performance on egg stains when used in e.g. cleaning or detergent compositions, such as laundry detergent compositions and dish wash compositions, including automatic dish wash compositions.
    Type: Grant
    Filed: May 6, 2004
    Date of Patent: March 24, 2009
    Assignees: Novozymes A/S, Maxygen Inc.
    Inventors: Stefan Minning, Jurgen Carsten Franz Knotzel, Niels Henrik Sorensen, Jon E. Ness, Mark D. Welch, Lorraine J. Giver, Joel Cherry, Torben Vedel Borchert, Jeremy Minshull
  • Patent number: 6777218
    Abstract: The present invention relates to novel subtilases having an improved wash performance on egg stains. The present invention also relates to isolated nucleic acid sequences encoding the subtilases, nucleic acid constructs, recombinant expression vectors, host cells comprising the nucleic acid construct, and methods for producing and using the subtilases of the invention. Further, the present invention relates to cleaning and detergent compositions comprising the subtilase enzymes of the invention as well as to use of such enzymes in detergent compositions and for removal of egg stains.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: August 17, 2004
    Assignees: Novozymes A/S, Maxygen, Inc
    Inventors: Frank Mikkelsen, Tina Sejersgård Fanø, Jon E. Ness, Mark D. Welch, Lorraine J. Giver, Jeremy S. Minshull, Torben V. Borchert, Joel Cherry