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CONSTANT-BEAMWIDTH LOUDSPEAKER ARRAY

  • US 20100104117A1
  • Filed: 01/04/2010
  • Published: 04/29/2010
  • Est. Priority Date: 05/27/2003
  • Status: Active Grant
First Claim
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1. A loudspeaker system, the loudspeaker system comprising:

  • a frame;

    an array of speaker drivers, where the array of speaker drivers is coupled to the frame and aligned in a frontal plane; and

    a circuit configured to apply a plurality of delay levels to an incoming signal to place the array of speaker drivers in a virtual arc in a plane perpendicular to the frontal plane, where the circuit is further configured to also apply a plurality of attenuation levels to the incoming signal, so that each speaker driver of the array of speaker drivers is configured to receive a driving electrical signal based on the incoming signal that causes a respective speaker driver of the array of speaker drivers to generate a respective acoustic output, where each respective acoustic output is combined to form a directional sound field having a substantially constant beamwidth across an operational frequency range.

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