×

DOOR MONITORING SYSTEM

  • US 20110016971A1
  • Filed: 07/15/2010
  • Published: 01/27/2011
  • Est. Priority Date: 07/21/2009
  • Status: Active Grant
First Claim
Patent Images

1. A door assembly comprising:

  • a first door skin;

    a second door skin spaced apart from the first door skin;

    an energy sensor generating an energy signature signal;

    a memory storing a door component operating signature;

    a controller coupled to the energy sensor and forms a comparison of the energy signature signal to the door component operating signature and generates a door component operation status signal in response to the comparison.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×