×

Method and apparatus for modifying an audio signal

  • US 8,462,975 B2
  • Filed: 02/11/2008
  • Issued: 06/11/2013
  • Est. Priority Date: 02/09/2007
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for enhancing an audio signal having a known audio frequency range comprising:

  • translating an electrical signal through an audio output device to generate the audio signal;

    providing an inductor within the audio output device, the inductor having a pre-selected configuration including a core of a pre-selected shape, size and material composition, the core being wound with at least one wire and having characteristic Barkhausen properties;

    determining specific frequencies to be enhanced within the audio frequency range;

    generating random Barkhausen noise coherently related to the audio signal by passing the electrical signal through the inductor and driving it to saturation; and

    enhancing the audio signal output at the selected frequencies by coherently modulating the random noise with the audio signal to drive the signal above a threshold of detectability.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×