Patents by Inventor Thomas Walger

Thomas Walger 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: 11351810
    Abstract: The present invention proposes a method for producing an authenticable moiré shape that simultaneously moves and shows a beating effect. The method relies on a combination of the 1D or the 2D moiré and the level line moiré. When tilting a compound showing such a moiré, the moiré shape moves, its intensity levels change significantly but its shape remains the same and is recognizable. Embodiments comprise a base layer made of patterned metallic tiny shapes and a revealing layer made of a 1D array of cylindrical lenslets or of a 2D array of spherical or aspherical lenslets.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: June 7, 2022
    Assignee: Ecole Polytechnique Fédérale de Lausanne (EPFL)
    Inventors: Thomas Walger, Roger D. Hersch, Jürgen Brugger
  • Publication number: 20220072892
    Abstract: The present invention proposes a method for producing an authenticable moiré shape that simultaneously moves and shows a beating effect. The method relies on a combination of the 1D or the 2D moiré and the level line moiré. When tilting a compound showing such a moiré, the moiré shape moves, its intensity levels change significantly but its shape remains the same and is recognizable. Embodiments comprise a base layer made of patterned metallic tiny shapes and a revealing layer made of a 1D array of cylindrical lenslets or of a 2D array of spherical or aspherical lenslets.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 10, 2022
    Applicant: Ecole Polytechnique Fédérale de Lausanne (EPFL)
    Inventors: Thomas Walger, Roger D. Hersch, Jürgen Brugger
  • Patent number: 11032928
    Abstract: A system is provided for releaseably connecting a first device housing with a second device housing. The system includes at least three connection units, wherein each of which includes a headed bolt and a corresponding keyhole-shaped recess. The keyhole-shaped recess is configured for receiving the headed bolt such that the headed bolt can be inserted into the recess in a first section and held in the recess in a second section. At least one of the connection units includes a locking mechanism configured for locking the bolt in the second section of the recess. The locking mechanism includes a movable locking element which is movable with respect to the headed bolt and configured to hold the headed bolt in the second section of the recess in a locking position. Another configuration uses a corresponding connection arrangement includes such a system.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: June 8, 2021
    Assignee: ROHDE & SCHWARZ GMBH & CO. KG
    Inventors: Andreas Fischl, Thomas Walger
  • Patent number: 10899161
    Abstract: The present invention describes methods and apparatuses for creating superposition shape images by superposed base and revealing layers of lenslet gratings. The superposition shape images form a message recognizable by a human observer or by an image acquisition and computing device such as a smartphone. The superposition shape images may be created by different superposition techniques ranging from 1D moiré, 2D moiré and level-line moiré superposition techniques to lenticular image and phase shift superposition techniques. Moiré superposition techniques enable creating superposition shape images at different apparent depth levels. Applications comprise the protection of documents and valuable articles against counterfeits, the creation of eye-catching advertisements as well as the decoration of buildings and exhibitions.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: January 26, 2021
    Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: Roger David Hersch, Thomas Walger, Valentin Flauraud, Juergen Brugger, Theophane Besson
  • Publication number: 20200196466
    Abstract: The present invention provides a system for releaseably connecting a first device housing with a second device housing. The system comprises at least three connection units, wherein each of the connection units comprises a headed bolt and a corresponding keyhole-shaped recess. The keyhole-shaped recess is configured for receiving the headed bolt in such a manner that the headed bolt can be inserted into the recess in a first section and held in the recess in a second section. At least one of the connection units comprises a locking mechanism configured for locking the bolt in the second section of the recess. The locking mechanism comprises a movable locking element which is movable with respect to the headed bolt and configured to hold the headed bolt in the second section of the recess in a locking position.
    Type: Application
    Filed: December 14, 2018
    Publication date: June 18, 2020
    Inventors: Andreas Fischl, Thomas Walger
  • Patent number: 10286716
    Abstract: The present invention describes methods and apparatuses for creating superposition shape images by superposed base and revealing layers of lenslet gratings. The superposition shape images form a message recognizable by a human observer or by an image acquisition and computing device such as a smartphone. The superposition shape images may be created by different superposition techniques ranging from 1D moiré, 2D moiré and level-line moiré superposition techniques to lenticular image and phase shift superposition techniques. Moiré superposition techniques enable creating superposition shape images at different apparent depth levels. Applications comprise the protection of documents and valuable articles against counterfeits, the creation of eye-catching advertisements as well as the decoration of buildings and exhibitions.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: May 14, 2019
    Assignee: Ecole Polytechnique Fédérale Lausanne (EPFL)
    Inventors: Roger D. Hersch, Thomas Walger, Théophane Besson, Valentin Flauraud, Juergen Brugger
  • Publication number: 20180311990
    Abstract: The present invention describes methods and apparatuses for creating superposition shape images by superposed base and revealing layers of lenslet gratings. The superposition shape images form a message recognizable by a human observer or by an image acquisition and computing device such as a smartphone. The superposition shape images may be created by different superposition techniques ranging from 1D moiré, 2D moiré and level-line moiré superposition techniques to lenticular image and phase shift superposition techniques. Moiré superposition techniques enable creating superposition shape images at different apparent depth levels. Applications comprise the protection of documents and valuable articles against counterfeits, the creation of eye-catching advertisements as well as the decoration of buildings and exhibitions.
    Type: Application
    Filed: May 31, 2016
    Publication date: November 1, 2018
    Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)
    Inventors: David Roger Hersch, Thomas Walger, Valentin Flauraud, Juergen Brugger, Theophane Besson
  • Publication number: 20170113481
    Abstract: The present invention describes methods and apparatuses for creating superposition shape images by superposed base and revealing layers of lenslet gratings. The superposition shape images form a message recognizable by a human observer or by an image acquisition and computing device such as a smartphone. The superposition shape images may be created by different superposition techniques ranging from 1D moiré, 2D moiré and level-line moiré superposition techniques to lenticular image and phase shift superposition techniques. Moiré superposition techniques enable creating superposition shape images at different apparent depth levels. Applications comprise the protection of documents and valuable articles against counterfeits, the creation of eye-catching advertisements as well as the decoration of buildings and exhibitions.
    Type: Application
    Filed: October 27, 2015
    Publication date: April 27, 2017
    Applicant: Ecole Polytechnique Fédérale de Lausanne (EPFL)
    Inventors: Roger David Hersch, Thomas Walger, Valentin Flauraud, Juergen Brugger, Théophane Besson