Patents by Inventor Renaud Kiefer

Renaud Kiefer 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).

  • Dynamic solid state diffractive optics applied for reading a diffractive optics memory
    Patent number: 7210628
    Abstract: The apparatus and method of the present invention employ solid state dynamic diffractive optical elements for reading information from a diffractive optics memory. The diffractive optics memory has stored therein information located at a plurality of points of the memory and at a plurality of angles at each one of the points so as to form a plurality of packets of information at each of the points. A matrix of the dynamic diffractive optical elements is configured to shape a laser beam to address the memory at one of the angles of one of the points to reconstruct one of the packets of information.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: May 1, 2007
    Assignee: Research Investment Network, Inc.
    Inventors: Renaud Kiefer, Idriss El Hafidi, Romualda Grzymala, Patrick Meyrueis
  • Parallel recording and reading of diffractive memory using multiple object beams
    Patent number: 7200097
    Abstract: A parallel recording of diffractive storage system is provided. The recorded information is cellular for its designation. A laser beam is data modulated through a single reference beam and a plurality of object beams positioned at different angles. These object beams intersect the reference beam within a recording medium to form a plurality of data loaded pattern simultaneously.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: April 3, 2007
    Assignee: Research Investment Network, Inc.
    Inventors: Patrick Meyrueis, Idriss El Hafidi, Romualda Grzymala, Renaud Kiefer
  • Parallel recording and reading of diffractive memory using multiple object beams
    Publication number: 20050254392
    Abstract: A parallel recording of diffractive storage system is provided. The recorded information is cellular for its designation. A laser beam is data modulated through a single reference beam and a plurality of object beams positioned at different angles. These object beams intersect the reference beam within a recording medium to form a plurality of data loaded pattern simultaneously.
    Type: Application
    Filed: April 26, 2002
    Publication date: November 17, 2005
    Inventors: Patrick Meyrueis, Idriss El Hafidi, Romualda Grzymala, Renaud Kiefer
  • Photonics data storage system using a polypeptide material and method for making same
    Publication number: 20050084801
    Abstract: A photonics data storage system according to the present invention is described comprising a storage material, a data recording/storage apparatus for recording information in this storage material, and an addressing/data reading apparatus for reading the recorded information from this storage material. The photonics data storage system encodes data in the storage medium by an interferometric recording process. The storage medium is composed of a polypeptide material. The polypeptide material comprises a solution of chromium-doped collagen, in which solution ? and ? chains are predominantly present in proportions such that an ?/? ratio is greater than 1.
    Type: Application
    Filed: July 20, 2001
    Publication date: April 21, 2005
    Inventors: Idriss El-Hafidi, Romualda Grzymala, Patrick Meyrueis, Renaud Kiefer, Yoshitate Takakura