Directional speakers

Directional speakers

  • CN 1,774,871 A
  • Filed: 04/15/2004
  • Published: 05/17/2006
  • Est. Priority Date: 04/15/2003
  • Status: Active Application
First Claim
Patent Images

1. electronic equipment, its improvement comprises a directional loudspeaker, this directional loudspeaker produces direction restriction audio output signal and guides this audio output signal by predetermined direction for the user.

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