The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2011
Filed:
May. 22, 2001
Dan Revital, Jerusalem, IL;
Steve Epstein, Hashmonaim, IL;
Yossi Tsuria, Jerusalem, IL;
Arnold Zucker, Hashmonaim, IL;
Steven Simkin, Jerusalem, IL;
Dan Revital, Jerusalem, IL;
Steve Epstein, Hashmonaim, IL;
Yossi Tsuria, Jerusalem, IL;
Arnold Zucker, Hashmonaim, IL;
Steven Simkin, Jerusalem, IL;
NDS Limited, Middlesex, GB;
Abstract
A system and a method for secure distribution of digital media content through a packet-based network such as the Internet. The security of the present invention does not require one-to-one key exchange, but rather enables keys, and/or information required in order to build the key, to be broadcast through the packet-based network. The digital media content is then also preferably broadcast, but cannot be accessed without the proper key. However, preferably only authorized end-user devices are able to access the digital media content, by receiving and/or being able to access the proper key. Thus, the present invention is useful for other types of networks in which digital media content is more easily broadcast rather than unicast, in addition to packet-based networks.