Patent ID: 8116610

Claim:
Method for generating and displaying video signal data in a manner protected against digital copying, comprising the steps: providing partitioned video signal data derived from original video signal data; encoding said partitioned video signal data and providing for said encoded video signal data presentation control information data that are related to said partition; receiving and correspondingly decoding said encoded video signal data; splitting the decoded video signal data into data for at least two different video signals according to said partitioning, thereby using said presentation control information data and a distortion of at least one of said partitions according to distortion information data; supplying each one of said different video signals to a corresponding number of directional light sources for picture signals, each of which light sources has a different position and/or angle with respect to a common screen on which all light sources project their video signals in order to form a merged video signal approximating said original video signal, wherein said positions and/or angles of said light sources are adapted to said distortion information data.