Patents Represented by Attorney Digimare Corporation
  • Patent number: 7055034
    Abstract: This invention describes a method and apparatus for the increasing the robustness of embedded data. Since many times embedded data is susceptible to removal by an unauthorized person, one preferred embodiment enables an action such that removal of the embedded data provides the attacker no gain. In another preferred embodiment, recording devices are required to embed a registration code in copies, thus aiding in tracing illegal copies. Finally, dynamic locking, including modifying and encrypting the auxiliary data and applicable to all data embedding techniques, is shown to provide this robustness to duplication and modification. The apparatus implements the above two processes with a logic processor and storage unit.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: May 30, 2006
    Assignee: Digimarc Corporation
    Inventor: Kenneth Lee Levy
  • Patent number: 7003731
    Abstract: Methods and systems for associating watermark enabled objects with machine behaviors. Machine behaviors refer to actions by devices or systems in response to a triggering event. Examples of these behaviors include fetching a web page, opening an email client to send an email to a specific person, initiating a phone or video conference call, etc. A registration system enables users to associate machine behaviors with objects through a watermark embedded in the objects. The decoding of the watermark initiates a process for triggering the machine behaviors associated with the watermarked object. While the disclosure describes an implementation for stickers as a class of watermark enabled objects, the system and related methods apply to other forms of watermark enabled objects, including both electronic and physical objects.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: February 21, 2006
    Assignee: Digimare Corporation
    Inventors: Geoffrey B. Rhoads, Tony F. Rodriguez, Tyler J. McKinley, Marc D. Miller, Kirstin Hierholzer
  • Patent number: 6944298
    Abstract: One aspect of the invention is a method of decoding an auxiliary code embedded in an audio signal. The method performs a statistical decoding of a multibit auxiliary code embedded in an audio signal. The auxiliary code has been repetitively embedded in the audio signal. The method decodes code values of the auxiliary code from two or more different portions of the audio signal, each having the multibit auxiliary code. It then uses the code values decoded from two or more different portions to determine statistically the code values of the auxiliary code. Another aspect of the invention is another method of decoding an auxiliary code embedded in an audio signal. The method receives an audio signal suspected of being embedded with an auxiliary code. It evaluates a statistical feature of a portion of the audio signal to decode code values of the auxiliary code from the audio signal. It then determines a code value in the auxiliary code based on the statistical feature.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: September 13, 2005
    Assignee: Digimare Corporation
    Inventor: Geoffrey B. Rhoads
  • Patent number: 6829368
    Abstract: Media objects are transformed into active, connected objects via identifiers embedded into them or their containers. In the context of a user's playback experience, a decoding process extracts the identifier from a media object and possibly additional context information and forwards it to a server. The server, in turn, maps the identifier to an action, such as returning metadata, re-directing the request to one or more other servers, requesting information from another server to identify the media object, etc. The linking process applies to broadcast objects as well as objects transmitted over networks in streaming and compressed file formats.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: December 7, 2004
    Assignee: Digimarc Corporation
    Inventors: Joel R. Meyer, Geoffrey B. Rhoads