×

Transparent parametric transducer and related methods

  • US 9,258,651 B2
  • Filed: 10/17/2013
  • Issued: 02/09/2016
  • Est. Priority Date: 10/17/2013
  • Status: Active Grant
First Claim
Patent Images

1. An ultrasonic audio speaker, comprising:

  • an emitter, the emitter comprising;

    a first transparent conductive sheet;

    a second transparent conductive sheet; and

    a driver circuit having two inputs configured to be coupled to receive an audio modulated ultrasonic carrier signal from an amplifier and two outputs, wherein a first output is coupled to a conductive region of the first transparent conductive sheet and the second output is coupled to a conductive region of the second transparent conductive sheet.

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