Patents by Inventor Lang V. Nguyen

Lang V. Nguyen 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).

  • Linear scanner apparatus for communicating with a data card
    Patent number: 5434404
    Abstract: Apparatus for scanning a data card which comprises a thin, flexible medium having leading and trailing edges and one or more data stripes formed thereon at a prearranged location and extending transverse to said leading and trailing edges. The apparatus comprises a card guide for defining a linear card guide path and an entrance slit for accepting the data card into the guide path. A card positioning assembly is cooperatively associated with the card guide and drives the data card through the entrance slit and into the card guide. The card positioning assembly positions the card in a stationary prearranged location. A transducer positioning assembly linearly scans transducers along the data stripes on the data card.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: July 18, 1995
    Assignee: Verifone, Inc.
    Inventors: Yiu T. Liu, Lang V. Nguyen, Joseph Y. Kwong, Stanley Y. W. Lui