×

Dynamic location determination for a directionally controllable parametric emitter

  • US 9,510,089 B2
  • Filed: 10/21/2014
  • Issued: 11/29/2016
  • Est. Priority Date: 10/21/2013
  • Status: Active Grant
First Claim
Patent Images

1. An ultrasonic audio system, comprising:

  • a location sensor;

    a location tracking module configured to receive information from the location sensor and to determine a location of a listener in a listening environment;

    a time delay module configured to receive audio content and to generate a plurality of audio content signals, the generated audio content signals comprising a plurality of individual instances of the audio content signal each instance delayed in time relative to the other instances of the audio content signals;

    an ultrasonic emitter comprising a plurality of electrically isolated sections, each section having an input electrically coupled to receive one of the individual instances of the audio content signal, and configured to emit an audio-modulated ultrasonic signal from each of the plurality of electrically isolated sections; and

    a plurality of selectable interconnects, selectively electrically connecting adjacent pairs of the electrically isolated sections,wherein an amount of delay inserted for each instance of the audio content is computed so that a composite audio-modulated ultrasonic signal emitted by the emitter is directed toward the determined location of the listener.

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