Patents by Inventor Didier Le Gall

Didier Le Gall 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).

  • Variable matrix display device and method
    Publication number: 20090139122
    Abstract: A device (1) for displaying an aggregate image (2) the form of a matrix. Each cell (4) of the matrix (3) enables display of an elementary image (6). The elementary images are carried out on a ribbon (7). In order to vary the aggregate image, the elementary image is varied, the former being selected on the ribbon by causing the ribbon to run off inside the cell. The device enables the creation of very large display panels, particularly those used at airports.
    Type: Application
    Filed: September 10, 2004
    Publication date: June 4, 2009
    Applicant: BIG WALL VISION (S.A.R.L. )
    Inventors: Didier Le Gall, Yannick Le Gall, Marc Hermelin, Andre Testa, Philippe Planard
  • Method of protecting high definition video signal
    Patent number: 6925181
    Abstract: A system controls reproduction of a video transmission between a transmitter and a receiver. The system includes an encryptor with an offset generator adapted to receive the encrypted frame key and to generate a sequence of pseudo-random values for the color component; and an adder coupled to the offset generator and to the color component signal for providing an encoded color component signal. The system also includes a decryptor with a decryptor offset generator adapted to receive the encrypted frame key and to generate a decryptor pseudo-random value for the color component; and a subtractor coupled to the offset generator and to the color component signal for subtracting the offset signal from the color component signal.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: August 2, 2005
    Assignee: LSI Logic Corporation
    Inventors: Leslie Kohn, David A. Barr, Didier Le Gall
  • Method of protecting high definition video signal
    Publication number: 20030138102
    Abstract: A system controls reproduction of a video transmission between a transmitter and a receiver. The system includes an encryptor with an offset generator adapted to receive the encrypted frame key and to generate a sequence of pseudo-random values for the color component; and an adder coupled to the offset generator and to the color component signal for providing an encoded color component signal. The system also includes a decryptor with a decryptor offset generator adapted to receive the encrypted frame key and to generate a decryptor pseudo-random value for the color component; and a subtractor coupled to the offset generator and to the color component signal for subtracting the offset signal from the color component signal.
    Type: Application
    Filed: January 30, 2003
    Publication date: July 24, 2003
    Inventors: Leslie Kohn, David A. Barr, Didier Le Gall
  • Method of protecting high definition video signal
    Patent number: 6570990
    Abstract: A system controls reproduction of a video transmission between a transmitter and a receiver. The system includes an encryptor with an offset generator adapted to receive the encrypted frame key and to generate a sequence, of pseudo-random values for the color component; and an adder coupled to the offset generator and to the color component signal for providing an encoded color component signal. The system also includes a decryptor with a decryptor offset generator adapted to receive the encrypted frame key and to generate a decryptor pseudo-random value for the color component; and a subtractor coupled to the offset generator and to the color component signal for subtracting the offset signal from the color component signal.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: May 27, 2003
    Assignee: LSI Logic Corporation
    Inventors: Leslie Kohn, David A. Barr, Didier Le Gall