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Electronic multi-depth object locator with self-illuminating optical element warning and detection

  • US 20050280425A1
  • Filed: 06/03/2005
  • Published: 12/22/2005
  • Est. Priority Date: 06/07/2004
  • Status: Active Grant
First Claim
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1. A sensing device, comprising:

  • a sensing circuit configured to sense the presence of an object beneath a surface and to operate in at least three sensitivity modes; and

    a mode selection input device configured to allow a user to select a desired mode from among the at least three sensitivity modes, the mode selection input device comprising a single button, wherein each sensitivity mode is respectively accessible by the mode selection input device without a need to first access at least one other sensitivity mode.

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