Bobby D Guenther

US Patent:

7351975, Apr 1, 2008

Filed:

Mar 29, 2006

Appl. No.:

11/391223

Inventors:

David J. Brady - Durham NC, US
Bobby D. Guenther - Cary NC, US
Steve Feller - Durham NC, US
Mohan Shankar - Durham NC, US
Qi Hao - Chapel Hill NC, US

Assignee:

Duke University - Durham NC

International Classification:

G01J 5/02

US Classification:

250342, 2503383, 250DIG 1

Abstract:

A system identifies a human being from the movement of the human being. The system includes a dual element pyroeleetric detector, a Fresnel lens array, and a processor. The dual element pyroelectric detector detects radiation from the human being as the human being moves over time. The Fresnel lens array is located between the dual element pyroelectric detector and the human being. The Fresnel lens array improves collection efficiency and spatial resolution of the dual element pyroelectric detector. The Fresnel lens array includes a mask. The mask provides at least one zone of visibility. The processor is coupled to the dual element pyroelectric detector, the processor converts the detected radiation to a spectral radiation signature. The processor compares the spectral radiation signature to at least a second spectral radiation signature to identify the human being.

Address:

1002 Queensferry Rd, Cary, NC 27511

Phone:

9194691893

VIN:

JTDKN3DU6C5461056

Make:

TOYOTA

Model:

PRIUS

Year:

2012