Patents by Inventor David K. Varn

David K. Varn 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).

  • Method, Apparatus and Applications for Biometric Identification, Authentication, Man-to-Machine Communications and Sensor Data Processing
    Publication number: 20130173926
    Abstract: Applications, algorithms and technologies are disclosed for machine-to-machine communications, biometric identification and sensor data fusion. Applications include authentication, e-commerce and energy management. Algorithms include biometric signature generation and identification, as well as data fusion methods. Technologies include biometric and environmental sensing and identification. Advantages of the invention include more robust person authentication, greater immunity to theft of personal property and information, and enhanced building energy management.
    Type: Application
    Filed: August 2, 2012
    Publication date: July 4, 2013
    Applicant: OLEA SYSTEMS, INC.
    Inventors: Francesco Antonio Morese, David J. Sullivan, David K. Varn
  • Apparatus and method for a programmable security processor
    Patent number: 7996684
    Abstract: A digital logic circuit comprises a programmable logic device and a programmable security circuit. The programmable security circuit stores a set of authorized configuration security keys. The programmable security circuit compares the authorized configuration security keys with an incoming configuration request, and selectively enables a new configuration for the programmable logic device in response to the configuration request. In another exemplary embodiment, a programmable security circuit also stores a set of authorized operation security keys. The programmable security circuit compares the authorized operation security keys with an incoming operation request from the programmable logic device, and selectively enables an operation within the programmable logic device in response to the operation request.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: August 9, 2011
    Assignee: Infineon Technologies AG
    Inventors: Stephen L. Wasson, David K. Varn, John D. Ralston
  • Apparatus and method for a programmable security processor
    Patent number: 7937594
    Abstract: A digital logic circuit comprises a programmable logic device and a programmable security circuit. The programmable security circuit stores a set of authorized configuration security keys. The programmable security circuit compares the authorized configuration security keys with an incoming configuration request, and selectively enables a new configuration for the programmable logic device in response to the configuration request. In another exemplary embodiment, a programmable security circuit also stores a set of authorized operation security keys. The programmable security circuit compares the authorized operation security keys with an incoming operation request from the programmable logic device, and selectively enables an operation within the programmable logic device in response to the operation request.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: May 3, 2011
    Assignee: Infineon Technologies AG
    Inventors: Stephen L. Wasson, David K. Varn, John D. Ralston
  • Apparatus and method for a programmable security processor
    Patent number: 7073069
    Abstract: A digital logic circuit comprises a programmable logic device and a programmable security circuit. The programmable security circuit stores a set of authorized configuration security keys. The programmable security circuit compares the authorized configuration security keys with an incoming configuration request, and selectively enables a new configuration for the programmable logic device in response to the configuration request. In another exemplary embodiment, a programmable security circuit also stores a set of authorized operation security keys. The programmable security circuit compares the authorized operation security keys with an incoming operation request from the programmable logic device, and selectively enables an operation within the programmable logic device in response to the operation request.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: July 4, 2006
    Assignee: Infineon Technologies AG
    Inventors: Stephen L. Wasson, David K. Varn, John D. Ralston