Method and apparatus for remotely detecting presence

  • US 7,599,044 B2
  • Filed: 06/23/2005
  • Issued: 10/06/2009
  • Est. Priority Date: 06/23/2005
  • Status: Active Grant
  • ×
    • Pin Icon | RPX Insight
    • Pin
First Claim
Patent Images

1. A method for detecting a presence, comprising:

  • receiving a beam having an angle of reflection;

    in the event the angle of reflection exceeds a minimum angle, electronically determining that an object reflecting the beam is within a detection field; and

    in the event the object is within the detection field, activating a related device.

View all claims

    Thank you for your feedback