Patents Assigned to The Dice Company
  • Patent number: 5905800
    Abstract: A method for applying a digital watermark to a content signal is disclosed. In accordance with such a method, a watermarking key is identified. The watermarking key includes a binary sequence and information describing application of that binary sequence to the content signal. The digital watermark is then encoded within the content signal at one or more locations determined by the watermarking key.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: May 18, 1999
    Assignee: The Dice Company
    Inventors: Scott A. Moskowitz, Marc Cooperman
  • Patent number: 5889868
    Abstract: The implementations of digital watermarks can be optimally suited to particular transmission, distribution and storage mediums given the nature of digitally-sampled audio, video and other multimedia works. Watermark application parameters can be adapted to the individual characteristics of a given digital sample stream. Watermark information can be either carried in individual samples or in relationships between multiple samples, such as in a waveform shape. More optimal models may be obtained to design watermark systems that are tamper-resistant given the number and breadth of existent digitized sample options with different frequency and time components. The highest quality of a given content signal may be maintained as it is mastered, with the watermark suitably hidden, taking into account usage of digital filters and error correction. The quality of the underlying content signals can be used to identify and highlight advantageous locations for the insertion of digital watermarks.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: March 30, 1999
    Assignee: The Dice Company
    Inventors: Scott A. Moskowitz, Marc Cooperman
  • Patent number: 5822432
    Abstract: A method for the human-assisted generation and application of pseudo-random keys for the purpose of encoding and decoding digital watermarks to and from a digitized data stream. A pseudo-random key and key application "envelope" are generated and stored using guideline parameters input by a human engineer interacting with a graphical representation of the digitized data stream. Key "envelope" information is permanently associated with the pseudo-random binary string comprising the key. Key and "envelope" information are then applied in a digital watermark system to the encoding and decoding of digital watermarks. The invention includes improvements to the methods of encoding and decoding digital watermarks.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: October 13, 1998
    Assignee: The Dice Company
    Inventors: Scott A. Moskowitz, Marc Cooperman
  • Patent number: 5745569
    Abstract: A method for protecting computer code copyrights by encoding the code into a data resource with a digital watermark. The digital watermark contains licensing information interwoven with essential code resources encoded into data resources. The result is that while an application program can be copied in an uninhibited manner, only the licensed user having the license code can access essential code resources to operate the program and any descendant copies bear the required license code.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: April 28, 1998
    Assignee: The Dice Company
    Inventors: Scott A. Moskowitz, Marc Cooperman
  • Patent number: 5687236
    Abstract: An apparatus and method for encoding and decoding additional information into a stream of digitized samples in an integral manner. The information is encoded using special keys. The information is contained in the samples, not prepended or appended to the sample stream. The method makes it extremely difficult to find the information in the samples if the proper keys are not possessed by the decoder. The method does not cause a significant degradation to the sample stream. The method is used to establish ownership of copyrighted digital multimedia content and provide a disincentive to piracy of such material.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: November 11, 1997
    Assignee: The Dice Company
    Inventors: Scott A. Moskowitz, Marc Cooperman
  • Patent number: 5613004
    Abstract: An apparatus and method for encoding and decoding additional information into a stream of digitized samples in an integral manner. The information is encoded using special keys. The information is contained in the samples, not prepended or appended to the sample stream. The method makes it extremely difficult to find the information in the samples if the proper keys are not possessed by the decoder. The method does not cause a significant degradation to the sample stream. The method is used to establish ownership of copyrighted digital multimedia content and provide a disincentive to piracy of such material.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 18, 1997
    Assignee: The Dice Company
    Inventors: Marc Cooperman, Scott A. Moskowitz