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APPARATUS FOR GENERATING DIRECTIONAL SOUND AND MOBILE TERMINAL USING THE SAME

  • US 20090154736A1
  • Filed: 09/29/2008
  • Published: 06/18/2009
  • Est. Priority Date: 12/17/2007
  • Status: Abandoned Application
First Claim
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1. An apparatus for generating directional sound, comprising:

  • a signal controller for dividing and generating a reference signal into signals having three or more levels and phases;

    a first signal processor and a second signal processor for controlling a first signal and a second signal having levels and phases canceling each other among the signals generated from the signal controller;

    a central signal processor for controlling a signal having the same level and phase as the reference signal among the signals generated from the signal controller;

    a first speaker array and a second speaker array for converting signals output from the first signal processor and the second signal processor into sound signals, and outputting the sound signals; and

    a central speaker for converting a signal output from the central signal processor into a sound signal and outputting the sound signal, and arranged between the first speaker array and the second speaker array.

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