Patents by Inventor David S. Chechik

David S. Chechik 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).

  • Virtual smart card device, method and system
    Patent number: 7379548
    Abstract: A system and a method for secure transmission of protected content to a subscriber, without requiring a smart card or other renewable security element to be in physical proximity of the recipient module of the subscriber, such as a set-top box for example. Therefore, the renewable security element may optionally be protected and controlled by the transmitter of the protected content, such as by the broadcaster for example.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: May 27, 2008
    Assignee: NDS Limited
    Inventors: Dan Revital, David S. Chechik, Carmi Bogot, Yossi Tsuria