Apparatus, method, and system for digital content and access protection

摘要

There is described a method for providing an audio signal to a user-end, comprising: modifying an amplitude of at least some bits of the audio signal using at least one user-specific series of bits, thereby obtaining a non-identical copy of the audio signal; transmitting the non-identical copy to the user-end; at the user-end, identifying the at least some bits within the non-identical copy; and restoring the amplitude of the at least some bits using the at least one user-specific series of bits, thereby reconstructing the audio signal.

主权项

1. A method for providing an audio signal to a user, comprising:
sampling said audio signal at a user specific sampling rate, thereby obtaining temporally organized sample amplitudes; removing a timer interrelation between said temporally organized sample amplitudes, thereby obtaining sample amplitudes having no time interrelation; transmitting said sample amplitudes having no time interrelation to said user; and reconstructing said audio signal by inserting a user-specific sampling interval between successive ones of said sample amplitudes, said user-specific sampling interval corresponding to said user-specific sampling rate.