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Electronic marker stakes for sports fields

  • US 8,137,220 B2
  • Filed: 10/21/2010
  • Issued: 03/20/2012
  • Est. Priority Date: 03/14/2008
  • Status: Active Grant
First Claim
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1. A method of laying out a boundary of a sports field, comprising:

  • placing a first set of marker stakes in a field at first locations corresponding to reference points for a first field sport, wherein the first plurality of marker stakes emit a first signal;

    placing a second set of marker stakes in the field at second locations corresponding to reference points for a second field sport, wherein the second plurality of marker stakes emit a second signal; and

    locating the first set of marker stakes using a locator which detects the first signal.

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