Resources Contact Us Home
Dynamic composition of pre-encrypted video on demand content

Image Number 11 for United States Patent #7346163.

According to certain embodiments consistent with the present invention, a method of processing digital video content, wherein the digital video content comprises intra-coded frames and inter-coded frames, involves selecting a plurality of the intra-coded frames for encryption to produce selected frames; encrypting the selected frames under a first encryption algorithm to produce first encrypted frames; storing the inter-coded frames in a first file; and storing the intra-coded frames, whether encrypted under the first encryption algorithm or unencrypted, in a second file. For a multiple encryption embodiment consistent with the present invention, the method further involves duplicating the intra-coded frames; encrypting duplicates of the selected frames under a second encryption algorithm to produce second encrypted frames; storing the intra-coded frames, whether encrypted under the second encryption algorithm or unencrypted, in a third file. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

  Recently Added Patents
Delay interferometer using magneto-optic effect of a variable faraday rotator
Establishing a social network
Image reproduction system and image reproduction processing program
Reducing voltage stress in a flyback converter design
High performance data transport system and method
Case of electronic device having antenna pattern embedded therein and mold and method for manufacturing the same
Sporting goal practice screen
  Randomly Featured Patents
Nano-cellular polymer foam and methods for making them
Preparation of methylsulfonylbenzoic acids
Method of manufacturing multi-layer printed circuit board
Adaptive algorithm for reducing channel zapping time in multicast media
Merchandising system
Truck bed extender system
System and method of intelligent Mandarin speech input for Chinese computers
Systems and methods for constrained anisotropic diffusion routing within an ad hoc network
Counter blade for a disc chipper
Method and apparatus for minimizing power-up crowbar current in a retargetable SRAM memory system