Rain sensor

  • US 6,313,454 B1
  • Filed: 07/02/1999
  • Issued: 11/06/2001
  • Est. Priority Date: 07/02/1999
  • Status: Expired due to Term
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First Claim
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1. A vehicular rain sensor which senses precipitation at a vehicle window, said vehicular sensor comprising:

  • an imaging array sensor directed at the vehicle window from inside the vehicle, said imaging array sensor detecting precipitation at the window; and

    a control which is responsive to said imaging array sensor detecting precipitation at the window, said control including a filtering process reducing effects of window irregularities.

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