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Passive Directional Acoustic Radiating

  • US 20110026744A1
  • Filed: 08/12/2010
  • Published: 02/03/2011
  • Est. Priority Date: 05/02/2008
  • Status: Active Grant
First Claim
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1. An audio system for a television comprising:

  • a television cabinet;

    a first slotted pipe type passive directional acoustic device comprisinga first acoustic driver, acoustically coupled to a pipe to radiate acoustic energy into the pipe,the first pipe comprisingan elongated opening along at least a portion of the length of the pipe; and

    acoustically resistive material in the opening through which pressure waves are radiated to the environment,the pressure waves characterized by a volume velocity, the pipe, the opening, and the acoustically resistive material configured so that the volume velocity is substantially constant along the length of the pipe; and

    wherein the passive directional acoustic device is mounted in the television cabinet to directionally radiate sound waves laterally from the television cabinet.

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