Patent ID: 7050588
Filing Date: 2006-05-23
Classification: H04N

Abstract:
1. System for processing an information signal, comprising a system for scrambling the information signal and at least one system for descrambling the scrambled information signal, said scrambling system comprising means for analysing the entropy distribution of the information signal, means for scrambling the information signal in dependence on information on the entropy distribution of the information, which scrambling means receive information on the entropy distribution from the analysing means as input and receive the information signal as input, wherein the scrambling means are arranged to perform a scrambling operation on the information signal controlled by the information on the entropy distribution so as to provide a scrambled information signal having an entropy distribution corresponding with the entropy distribution of the information signal and means for compressing the scrambled information signal, said descrambling system comprising means for decompressing the compressed scrambled information signal, and means for descrambling the scrambled information signal to provide the information signal.