SYSTEM FOR SCRAMBLING CONTENT, AND SYSTEM FOR DESCRAMBLING SCRAMBLED CONTENT

摘要

A system provides content as a data packet stream, each data packet containing at least one address. A first processing unit has at least one input receiving the content data packet stream. The processing unit is programmed to divide the data packets of the content data packet stream on at least two or more of a number of outputs. One output is connected to scrambler to scramble the data packets. In a system a scrambler is programmed with a first algorithm for selecting sections from the content. The scrambler passes the selected sections unscrambled, wherein the scrambled content with the selected sections can be processed according to a second algorithm. A system for descrambling scrambled content comprises a signal processor for descrambling received or stored scrambled content. This processor is programmed with the second algorithm to scan the scrambled content for unscrambled sections and to process at least these sections.