×

Subband domain signal validation

  • US 7,085,675 B2
  • Filed: 02/06/2003
  • Issued: 08/01/2006
  • Est. Priority Date: 02/06/2002
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for early detection of a deviation from a selected condition in a monitored system comprising the steps of:

  • measuring a signal from the system containing information about operation of the system;

    applying a plurality of filters to the signal for decomposing said signal into a plurality of sub-band components;

    determining at least one feature value for at least one of said sub-band components;

    generating an empirically-based estimate of said at least one feature value; and

    comparing said estimate and said determined at least one feature value to detect a deviation from the selected condition.

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