| Patent Number |
Title Of Patent |
Date Issued |
| 7409320 |
Complex signal decomposition and modeling |
August 5, 2008 |
| A system, method and program product for monitoring a complex signal for ultrasensitive detection of state changes, or for signature recognition and classification is provided. A complex signal is decomposed periodically for empirical modeling. Wavelet analysis, frequency band filter |
| 7403869 |
System state monitoring using recurrent local learning machine |
July 22, 2008 |
| Reference data observations for given system are used to develop a reference set of such observations. Subsequent observations (comprising, in one embodiment, current observations) are then used to facilitate selection of portions of this reference set to yield a resultant set of obs |
| 7386426 |
Method and system for nonlinear state estimation |
June 10, 2008 |
| An NSET method and apparatus for modeling and monitoring the status of a system is disclosed. The NSET employs a nonlinear similarity operator in place of linear matrix multiplication, to estimate a set of sensor data based on learned reference data, responsive to receiving a set of actu |
| 7373283 |
Monitoring and fault detection system and method using improved empirical model for range extrem |
May 13, 2008 |
| A method and apparatus for improved monitoring the operational state of instrumented systems is provided. An empirical model characterizes normal or desirable operation of the system, and real-time observations are provided to the model to generate estimates of expected sensor values. |
| 7233886 |
Adaptive modeling of changed states in predictive condition monitoring |
June 19, 2007 |
| An improved empirical model-based surveillance or control system for monitoring or controlling a process or machine provides adaptation of the empirical model in response to new operational states that are deemed normal or non-exceptional for the process or machine. An adaptation dec |
| 6975962 |
Residual signal alert generation for condition monitoring using approximated SPRT distribution |
December 13, 2005 |
| A system and method for monitoring a condition of a monitored system. Estimates of monitored parameters from a model of the system provide residual values that can be analyzed using a sequential probability ratio test ("SPRT"). The invention employs empirically derived distributions in |
| 6957172 |
Complex signal decomposition and modeling |
October 18, 2005 |
| A system, method and program product for monitoring a complex signal for ultrasensitive detection of state changes, or for signature recognition and classification is provided. A complex signal is decomposed periodically for empirical modeling. Wavelet analysis, frequency band filter |
| 6952662 |
Signal differentiation system using improved non-linear operator |
October 4, 2005 |
| A system for detecting subtle differences in a signal in a set of linearly and/or non-linearly related signals that characterize a sensor-instrumented machine, process or living system. The system employs an improved similarity operator for signal differentiation. Signals or data rep |
| 6876943 |
Inferential signal generator for instrumented equipment and processes |
April 5, 2005 |
| An improved system and method for producing replacement sensor signals for failed sensors, and inferred sensor signals for non-instrumented physical parameters, in processes and equipment having one or more sensors in place for monitoring physical parameters. A data history from a fu |
| 6859739 |
Global state change indicator for empirical modeling in condition based monitoring |
February 22, 2005 |
| An improved empirical model-based surveillance or control system for monitoring or controlling a process or machine provides identification of transitions between operational states. Empirical model-based estimates generated in response to receiving actual operational parameters are |
| 6775641 |
Generalized lensing angular similarity operator |
August 10, 2004 |
| In a machine for monitoring an instrumented process or for analyzing one or more signals, an empirical modeling module for modeling non-linearly and linearly correlated signal inputs using a non-linear angular similarity function with variable sensitivity across the range of a signal inp |
| 6556939 |
Inferential signal generator for instrumented equipment and processes |
April 29, 2003 |
| Inferred sensor signals are generated for uninstrumented physical parameters not among parameters measured in processes and equipment having one or more sensors in place for monitoring physical parameters. Inferential sensor signals can be advantageously used in downstream control pr |
