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System for playback of pre-encoded signals through a parametric loudspeaker system

  • US 20020111795A1
  • Filed: 03/04/2002
  • Published: 08/15/2002
  • Est. Priority Date: 08/26/1999
  • Status: Active Grant
First Claim
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1. A method for generating parametric output from a parametric loudspeaker system, comprising the steps of:

  • retrieving a pre-encoded audio signal from an electronically readable storage medium, wherein an ultrasonic carrier signal having at least one sideband represents the pre-encoded audio signal; and

    playing back the pre-encoded audio signal through an ultrasonic amplifier and emitter.

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