Patents by Inventor Michael Hoffberg

Michael Hoffberg 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).

  • Authentication method and system
    Patent number: 8270603
    Abstract: The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficult. In addition, the present invention provides an efficient means for the production of labels and verification of authenticity, whereby a recording apparatus which includes a recording medium, having anisotrophic optical domains, along with a means for transferring a portion of the recording medium to a carrier, wherein a bulk portion of the recording medium has macroscopically detectable anisotrophic optical properties and the detecting apparatus thereon.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: September 18, 2012
    Assignee: Tracer Detection Technology Corp.
    Inventors: David I. Durst, Norman Kaish, Jay Fraser, Michael Hoffberg, Brian Rodricks
  • Authentication method and system
    Patent number: 7773749
    Abstract: The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficult. In addition, the present invention provides an efficient means for the production of labels and verification of authenticity, whereby a recording apparatus which includes a recording medium, having anisotrophic optical domains, along with a means for transferring a portion of the recording medium to a carrier, wherein a bulk portion of the recording medium has macroscopically detectable anisotrophic optical properties and the detecting apparatus thereon.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: August 10, 2010
    Assignee: Tracer Detection Technology Corp.
    Inventors: David I. Durst, Norman Kaish, Jay Fraser, Michael Hoffberg, Brian Rodricks
  • Authentication method and system
    Patent number: 7162035
    Abstract: The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficult. In addition, the present invention provides an efficient means for the production of labels and verification of authenticity, whereby a recording apparatus which includes a recording medium, having anisotrophic optical domains, along with a means for transferring a portion of the recording medium to a carrier, wherein a bulk portion of the recording medium has macroscopically detectable anisotrophic optical properties and the detecting apparatus thereon.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: January 9, 2007
    Assignee: Tracer Detection Technology Corp.
    Inventors: David I. Durst, Norman Kaish, Jay Fraser, Michael Hoffberg, Brian Rodricks
  • Method for calculating gain correction factors in a digital imaging system
    Patent number: 6350985
    Abstract: A method for developing a set of gain correction coefficients corrected for structural noise to be used in correcting the digital values representing an image captured by a pixelated detector having a plurality of individual sensors. The gain correction coefficients are developed by first obtaining a first set gain correction coefficients using a flat exposure and adjusting the individual sensor gain output so that all sensors produce the same output value, and then applying a smoothing filter to the first set of gain correction coefficients to obtain a new set of corrected gain correction coefficients.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: February 26, 2002
    Assignee: Direct Radiography Corp.
    Inventors: Brian Rodricks, Michael Hoffberg, Cornell Williams