Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Semiconductor apparatus
Image forming apparatus, control method and computer-readable medium for stopping a print job during printing by a printer
System, method, and computer program product for determining whether an electronic mail message is compliant with an etiquette policy
(4949
Device for identifying types of document files
Method and apparatus for receiving signals in a MIMO system with multiple channel encoders
Trimming circuit and semiconductor device
  Randomly Featured Patents
Flattened tubular film and process for manufacturing such a film
Power measurement circuit
Method for cathodic electrodeposition of coating compositions containing diels-alder adducts
Isoprenylamine derivatives
Stereoselective ring opening reactions
Molded cellular crosslinked vinyl lactam polymer gel and method of preparation
Apparatus for electrohydroblasting trimming of castings
Printing apparatus for continuous printing
Fabrication of rotary heat exchangers made of magnesium aluminum silicate glass-ceramic
Communication device provided with a storage medium for storing a control program