Patents by Inventor Alexandre Feyjoo

Alexandre Feyjoo 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).

  • Device for recognizing authentic documents using optical modulas
    Patent number: 4922109
    Abstract: A recognition device for authenticating documents is disclosed. The recognition device comprises a reading head for optically scanning the documents. The reading head includes at least two modules of substantially identical construction, each of which is provided with a line of photosensors. The reading head also includes means for determining the spectral sensitivity of the modules. The recognition device also includes a conveying system for providing relative movement between the reading head and the documents being scanned. An evaluation means correlates signals provided by the photosensors with prestored values to control a sorter which sorts the documents based on their authenticity or falsehood.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: May 1, 1990
    Assignee: LGZ Landis & Gyr Zug AG
    Inventors: Christian Bercovitz, Alexandre Feyjoo