Apparatus and method for controlling the copy and play of a digital audio contents
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United States of America Patent
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Aug 10, 2010
Grant Date -
Aug 28, 2003
app pub date -
Feb 19, 2002
filing date -
Feb 19, 2001
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Abstract
The object of the present invention is providing the apparatus and method for controlling playing and copying the digital audio contents by way of embedding the control code into and extracting the control code from the digital audio contents. To achieve the object of the invention, the present invention includes control code embedding apparatus which includes timing deciding part for distributing control code, control code embedding part and digital audio signal summing part, and control code extracting apparatus which includes distribution information collecting part, control code discerning part, and decoding/instruction generating part.
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