Prior to embedding a watermark in an audio signal, a spectral representation of the audio signal and a spectral representation of the watermark signal are determined. The spectral representation of the watermark signal is then processed on the basis of a psychoacoustic masking threshold of the audio...http://www.google.es/patents/US20040184369?utm_source=gb-gplus-sharePatente US20040184369 - Device and method for embedding a watermark in an audio signal
Device and method for embedding a watermark in an audio signal
Número de solicitud: 10/481,860 Número de publicación: US 2004/0184369 A1 Fecha de presentación: 18 Dic 2003 Patente emitida: US7346514 ( Fecha de emisión 18 Mar 2008)
