Patents Assigned to Transpacific Information, LLC
  • Method and apparatus for compressed-domain watermarking
    Patent number: 7418110
    Abstract: A method and apparatus for inserting a low frequency watermark into a compressed data stream carrying compressed content is disclosed. A portion of the compressed data stream is decoded to generate decoded content. The decoded content is analyzed to generate watermark insertion information. The compressed content is embedded with a low frequency watermark using the watermark insertion information.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: August 26, 2008
    Assignee: Transpacific Information, LLC
    Inventors: Jeffrey Lubin, Michael Anthony Isnardi, Jeffrey Adam Bloom, Christos Alkiviadis Polyzois
  • Method and apparatus for providing an asymmetric watermark carrier
    Patent number: 7415128
    Abstract: A low-frequency, temporally asymmetric watermark carrier decreases in luminance at a slower rate than it increases in luminance. This allows the carrier to be embedded, e.g., in a video work, in a manner that renders the resultant watermark virtually invisible to the human eye. Moreover, the resultant watermark is substantially resistant to common pirating techniques in which high-frequency visual content (e.g., including watermark data) tends to be filtered out by piracy processing.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: August 19, 2008
    Assignee: Transpacific Information, LLC
    Inventors: Jeffrey Adam Bloom, John Scott Nafziger