Patents by Inventor David Lavanchy

David Lavanchy 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).

  • Coin sensor
    Patent number: 8622190
    Abstract: A coin tester includes a coin sensor which outputs a measurement signal which is influenced by the presence of a coin. A memory device stores an impedence model of the coin sensor and the model representing an expected influence of a coin configuration model on the measurement signal. A processor computes and applies acceptance criteria to determine whether the coin falls within a predetermined coin configuration.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: January 7, 2014
    Assignee: MEI, Inc.
    Inventors: David Lavanchy, Gaston Baudat
  • Coin Sensor
    Publication number: 20130240322
    Abstract: A coin tester includes a coin sensor which outputs a measurement signal which is influenced by the presence of a coin. A memory device stores an impedence model of the coin sensor and the model representing an expected influence of a coin configuration model on the measurement signal. A processor computes and applies acceptance criteria to determine whether the coin falls within a predetermined coin configuration.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 19, 2013
    Applicant: MEI, Inc.
    Inventors: David Lavanchy, Gaston Baudat