Patents by Inventor Norman S. Burkhardt

Norman S. Burkhardt 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: 5218457
    Abstract: A scanning device which is capable of scanning documents at high speeds and high resolutions. The present invention uses automatic thresholding techniques and provides variable data compression to accommodate various end user host devices. The present invention is entirely menu driven and utilizes a cursor control and enter button to select the various options available through software.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: June 8, 1993
    Assignee: Scan-Graphics, Inc.
    Inventors: Norman S. Burkhardt, Maureen M. Richard, Forrest T. Buxton, Ronald J. Nowak
  • Patent number: 4972273
    Abstract: A scanning device which is capable of scanning documents at high speeds and high resolutions. The present invention uses automatic thresholding techniques and provides variable data compression to accommodate various end user host devices. The present invention is entirely menu driven and utilizes a cursor control and enter button to select the various options available through software.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: November 20, 1990
    Inventors: Norman S. Burkhardt, Maureen M. Richard, Forrest T. Buxton, Ronald J. Nowak
  • Patent number: 4791283
    Abstract: A device and method for transferring data from a microprocessor located in a transaction card through a card reader by emulating a prerecorded magnetic stripe on a conventional transaction car such as a credit or debit card. Data is sequentially produced by the microprocessor within the card and applied to a magnetic field generator which produces magnetic fields that emulate prerecorded data on a conventional magnetic stripe of a transaction card. This allows transfer of data from a microprocessor to standard card readers without the necessity of substantially modifying the card reader device. Circuitry is also provided for detecting the position and speed of movement of the card through the card reader to ensure that all of the data is transmitted from the microprocessor to the magnetic field generators within the scanning time of the card across read head of the card reader.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: December 13, 1988
    Assignee: Intellicard International, Inc.
    Inventor: Norman S. Burkhardt
  • Patent number: 4631598
    Abstract: A scanning device which is capable of scanning documents at high speeds and high resolutions. The present invention uses automatic thresholding techniques and provides variable data compression to accommodate various end user host devices. The present invention is entirely menu driven and utilizes a cursor control and enter button to select the various options available through software.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: December 23, 1986
    Inventors: Norman S. Burkhardt, Maureen M. Richard, Forrest T. Buxton, Ronald J. Nowak