Patents by Inventor Nakada Kogure

Nakada Kogure 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).

  • Digital watermark detecting apparatus
    Patent number: 8204271
    Abstract: A digital watermark embedding apparatus includes: an extractor configured to extract a specific frequency component from each of N kinds of scaled images about an input image signal to generate N kinds of extracted signals; a generator configured to compress the amplitude of the respective extracted signals on the basis of N kinds of to-be-embedded information corresponding to the N kinds of extracted signals to generate watermark image signals by shifting the predetermined phases; and a superimposer configured to add the N kinds of watermark image signals to the input image signal to generate an output image signal.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: June 19, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Nakada Kogure, Tomoo Yamakage
  • DIGITAL WATERMARK EMBEDDING APPARATUS AND DIGITAL WATERMARK DETECTING APPARATUS
    Publication number: 20090089585
    Abstract: A digital watermark embedding apparatus includes: an extractor configured to extract a specific frequency component from each of N kinds of scaled images about an input image signal to generate N kinds of extracted signals; a generator configured to compress the amplitude of the respective extracted signals on the basis of N kinds of to-be-embedded information corresponding to the N kinds of extracted signals to generate watermark image signals by shifting the predetermined phases; and a superimposer configured to add the N kinds of watermark image signals to the input image signal to generate an output image signal.
    Type: Application
    Filed: September 22, 2008
    Publication date: April 2, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Nakada Kogure, Tomoo Yamakage