The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 03, 2007
Filed:
Feb. 08, 2006
Sandeep Gulati, La Canada, CA (US);
Sandeep Gulati, La Canada, CA (US);
VIASPACE Security Inc., Pasadena, CA (US);
Abstract
Techniques for monitoring thermal emissivity levels of human traffic within a plurality of sections of a zone of interest are presented. The thermal emissivity levels are monitored using an infrared detector with sensitivity range of less than fifty milliKelvin, and in some variations, about fifteen to thirty milliKelvin, such as a quantum well infrared photodetector (QWIP) equipped camera. Based on differential emissivity calculations, a determination is made whether the monitored emissivity level corresponds to at least one calibrated emissivity level associated with an explosive material. The monitored emissivity levels are calibrated to eliminate the effects of other synthetic objects such as clothing, personal items, and other harmless objects. The monitored emissivity levels are also buffered against changes in environmental factors.