Radiant energy – Luminophor irradiation – With ultraviolet source
Reexamination Certificate
2007-07-10
2007-07-10
Porta, David (Department: 2884)
Radiant energy
Luminophor irradiation
With ultraviolet source
Reexamination Certificate
active
11158491
ABSTRACT:
A method for statistically distinguishing between two or more populations, such as between samples containing background and threat particles, is disclosed. According to one embodiment, the method for statistically distinguishing is a method for processing a signal in a particle detection system. The method may include characterizing each particle detected by a signal vector. The method may further include calculating a weight of each particle detected using a weighting function of the signal vectors. The weighting function may be a functional of a threat particle probability distribution and a background particle probability distribution. The method may also include summing a total weight of all particles tested and generating an alarm signal if the total weight exceeds an alarm level.
REFERENCES:
patent: 5668373 (1997-09-01), Robbat, Jr. et al.
patent: 5701012 (1997-12-01), Ho
patent: 5895922 (1999-04-01), Ho
patent: 6111642 (2000-08-01), DeFreeze et al.
patent: 6490530 (2002-12-01), Wyatt
patent: 6532067 (2003-03-01), Chang et al.
patent: 6584413 (2003-06-01), Keenan et al.
patent: 6593582 (2003-07-01), Lee et al.
patent: 6603546 (2003-08-01), Barbieri et al.
patent: 6618712 (2003-09-01), Parker et al.
patent: 6675106 (2004-01-01), Keenan et al.
patent: 6831279 (2004-12-01), Ho
patent: 6885440 (2005-04-01), Silcott et al.
patent: 2002/0175294 (2002-11-01), Lee et al.
patent: 2003/0114986 (2003-06-01), Padmanabhan et al.
patent: 2003/0139886 (2003-07-01), Bodzin et al.
patent: 2004/0010379 (2004-01-01), Craig et al.
patent: 2004/0064260 (2004-04-01), Padmanabhan et al.
patent: 2004/0125371 (2004-07-01), Chang et al.
patent: 2004/0232052 (2004-11-01), Call et al.
patent: 2004/0238756 (2004-12-01), Rigler et al.
patent: 2005/0070025 (2005-03-01), Mooradian et al.
patent: 2005/0073683 (2005-04-01), Gard et al.
patent: 2006/0231771 (2006-10-01), Lee et al.
Biral,Real-time biological agent detection using particle size, shape and fluorescence characterisation agent, http://www.armedforces-int.com/print.asp?artID=2445, p. 1-8 Apr. 27, 2005).
The National Academies Press,Sensor Systems for Biological Agent Attacks: Protecting Buildings and Military Bases(2005), Board on Manufacturing and Engineering Design (BME), http://www.nap.edu/books/030909576X/html, pp. 1-2 (Apr. 27, 2005).
Luoma, et al., “A Fluorescence Particle Detector for Real Time Quantification of Viable Organisms in Air”, Proceeding of SPIE, vol. 4576 (2002).
National Research Council, Sensor Systems for Biological Attack Agents (2005) National Academies Press, Washington DC (Ch. 4-5).
Sivaprakasam, et al., “Multiple UV Wavelength Excitation and Fluorescence of Bioaerosols”, Sep. 20, 2004, vol. 12, No. 19, Optics Express 4457-4466.
Wilson et al., “Advances in BioLert Diode Laser Based Laser Induced Fluorescence Bio-Particle Sensors”, (Sep. 14, 2004) Hach Ultra Analytics.
Wilson, et al., “Autofluorescence Detection Using UV Diode Laser Simultaneous Excitation of Multiple Wavelengths”, Proceedings of SPIE, vol. 5071 (Sep. 2003) pp. 253-263.
Wilson et al., “Design Considerations and Signal Processing Algorithms for Laser-Induced Fluorescence Airborne Pathogen Sensors”, Optically Based biological and chemical Sensing for Defence, Proceedings of SPIE vol. 5617 (SPIE, Bellingham) (Published after Oct. 25, 2004).
Wilson et al., “Diode Laser Induced Fluorescence Biological Particle Sensor”, (Hach Ultra Analytics, Jan. 2005).
Wilson et al., “Improving Diode-Laser-Induced Fluorescence Detection of Airborne Biological Particles by Exciting Multiple Biofluorophores”, Proceedings of SPIE, vol. 5416, Chemical and Biological Sensing V, Aug. 2004, pp. 157-167.
Wilson et al., “Multispectral Diode Laser Induced Fluorescence Biological Particle Sensor”, Optically Based Biological and Chemical Sensing for Defence, Proceedings of SPIE vol. 5617 (SPIE, Bellingham, WA, 2004).
Wilson et al., “Optimally Weithted Degree of Threat Algorithm for Laser-Induced Fluorescence Biological Particle Sensors”, Presented at ROC curve workshop (Jul. 28, 2004).
Wilson, et al., “Receiver Operator Characteristic (ROC) Curves for Laser Induced Fluorescence (LIF) Biological Particle Sensors”, Presented at 2004 Scientific conference on Obscuration & Aerosol Research (Jun. 23, 2004).
Brady James
Wilson Geoffrey
Bethards Matthew S.
Hach Ultra Analytics, Inc.
Porta David
Stoel Rives LLP
Webb Christopher
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