Patents by Inventor Graeme G. Schreiber

Graeme G. Schreiber 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: 7305559
    Abstract: A software method of authentication is described that uses both relative and absolute values of inter-keystroke intervals measured during entry of a unique identifier. Both the relative and absolute values have to be achieved during entry of the unique identifier. The relative values are the ratio of each of the inter-keystroke intervals divided by one of the inter-keystroke intervals or divided by the average inter-keystroke interval.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: December 4, 2007
    Assignee: Lenovo Singapore Pte Ltd.
    Inventors: Graeme G. Schreiber, Andrew R. Knox
  • Publication number: 20040162999
    Abstract: A method of authentication is described that uses both relative and absolute values of inter-keystroke intervals measured during entry of a unique identifier. Both the relative and absolute values have to be achieved during entry of the unique identifier. The relative values are the ratio of each of the inter-keystroke intervals divided by one of the inter-keystroke intervals or divided by the average inter-keystroke interval.
    Type: Application
    Filed: December 4, 2003
    Publication date: August 19, 2004
    Applicant: International Business Machines Corporation
    Inventors: Graeme G. Schreiber, Andrew R. Knox
  • Publication number: 20040143767
    Abstract: A software method of authentication is described that uses both relative and absolute values of inter-keystroke intervals measured during entry of a unique identifier. Both the relative and absolute values have to be achieved during entry of the unique identifier. The relative values are the ratio of each of the inter-keystroke intervals divided by one of the inter-keystroke intervals or divided by the average inter-keystroke interval.
    Type: Application
    Filed: December 4, 2003
    Publication date: July 22, 2004
    Applicant: International Business Machines Corporation
    Inventors: Graeme G. Schreiber, Andrew R. Knox