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Sound collection device

  • US 9,294,833 B2
  • Filed: 12/16/2009
  • Issued: 03/22/2016
  • Est. Priority Date: 12/17/2008
  • Status: Active Grant
First Claim
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1. A sound collection device comprising:

  • a single integrally-molded body having a plurality of interconnecting parts;

    a plurality of unidirectional microphones each fitted on the single integrally-molded body;

    a plurality of gain adjustment units configured to adjust gains of sounds collected by the respective plurality of unidirectional microphones; and

    an adder configured to add the gain-adjusted sounds to one another,wherein the plurality of unidirectional microphones are arranged on one plane on a circle,wherein each of the plurality of interconnecting parts is disposed between a pair of adjacent unidirectional microphones, among the plurality of unidirectional microphones, with no other unidirectional microphone disposed between the pair of adjacent unidirectional microphones,wherein each of the plurality of unidirectional microphones is disposed so that a maximum sensitivity direction thereof is directed toward one of the plurality of interconnecting parts and intersects a center of the circle.

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