Patents by Inventor David William Cuccia

David William Cuccia 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).

  • Method and apparatus for providing a cryptographically secure interface between the decryption engine and the system decoder of a digital television receiver
    Patent number: 5818934
    Abstract: A method for providing a secure interface between a decryption engine and a system decoder of a digital receiver, e.g., an MPEG-2 digital television receiver. The system decoder receives an encrypted bitstream and produces a cipher text bitstream which is supplied to the decryption engine via a first parallel data bus which includes a plurality N of parallel bit lines corresponding to respective N bits of the cipher text bitstream. The decryption engine decrypts the cipher text bitstream and produces a plain text bitstream which is supplied to the system decoder via a second parallel data bus which includes a plurality N of parallel bit lines corresponding to respective N bits of the plain text bitstream.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: October 6, 1998
    Assignee: Phillips Electronics North America Corporation
    Inventor: David William Cuccia