Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Rights management system for streamed multimedia content Image Number 5 for United States Patent #7693280. A sequence of content keys are shared between a receiver of pieces of digital content and a computing device upon which the content is to be rendered. The receiver encrypts each piece of content according to a corresponding content key in the sequence and forwards the encrypted content to the computing device and the computing device decrypts the encrypted content according to the corresponding content key. The receiver initially transmits to the computing device an initialization digital license with an initial content key (CK0) therein. Each of the receiver and the computing device derive a new content key (CKx) in the sequence from the initial content key (CK(0)) in the sequence on an as-needed basis and in a coordinated fashion. The initialization license is required only once for the sequence of content keys, and the receiver need not explicitly communicate (CKx) to the computing device for each piece of content.       Recently Added Patents System and method for versioning of configuration items Barrier seal and assembly incorporating same Adhesive composition, adhesive optical film and image display device One-piece Nano/Nano class Nanocomposite Optical Ceramic (NNOC) extended dome having seamless non-complementary geometries for electro-optic sensors Tensioning bow member for a flexible cover system Apparatus, and associated method, for facilitating control of control signaling performed by a mobile node operable in a radio communication system Front derailleur chain detachment prevention member   Randomly Featured Patents Semiconductor memory device capable of operating at high speed Magnetic acicular alloy particles containing iron as a main component Sample moving apparatus, sample moving system and semiconductor manufacturing apparatus In circuit modification device for dual in line packaged components Timing controller and controlled delay circuit for controlling timing or delay time of a signal by changing phase thereof Thin semiconductor package having stackable lead frame and method of manufacturing the same Systems and methods for generating personalized dynamic presentations from non-personalized presentation structures and contents Human aggrecanase and nucleic acid compositions encoding the same Cathode catalyst for fuel cell, and membrane-electrode assembly for fuel cell and fuel cell system including same Method and apparatus for reducing peak-to-average power ratio in a discrete multi-tone signal © 2006-2008 PatentGenius. All Rights Reserved.