Autonomous machine

  • US 7,085,624 B2
  • Filed: 10/31/2002
  • Issued: 08/01/2006
  • Est. Priority Date: 11/03/2001
  • Status: Expired due to Fees
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First Claim
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1. An autonomous machine comprising:

  • a drive for moving the machine along a surface, anda navigation system, including a memory, for navigating the machine around an area,the navigation system comprising;

    an exploration unit causing the machine to explore a boundary of the area in which it is located, constructing a map of the area based on information collected by the machine as the machine explores the area,a determining unit determining when the machine has returned to a previously visited position within the area, anda corrector correcting the map when the machine returns to the previously visited position, based on knowledge that the current position and the previously visited position are the same.

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