SCRAMBLE TRANSMISSION METHOD, SCRAMBLER, SCRAMBLED SIGNAL REPRODUCTION METHOD, DESCRAMBLER AND SCRAMBLED SIGNAL REPRODCING DEVICE

摘要

PURPOSE: To obtain the scramble transmission method and the scrambler in which a displeasure feeling of a reproduced image of a reproduction device inhibiting descrambling is avoided. CONSTITUTION: A scrambler 11 applies scramble processing to transmission data, and generates an effect control signal instructing the reproduction method to a receiver side inhibiting descrambling and sends the signal with a scramble key. A descrambler 12 applies permission discrimination of descrambling and when permitted, the data are descrambled to reproduce a scramble signal and when no release is allowed, a scramble signal is reproduced according to the effect control signal.