Method of analyzing a presence in a space

Details Method of analyzing a presence in a space Method of analyzing a presence in a space

2006-06-08

2010-06-22

Toatley, Jr., Gregory J (Department: 2877)

Optics: measuring and testing

Shape or surface configuration

Silhouette

Reexamination Certificate

active

07742175

ABSTRACT:
A method of analyzing a presence in a space (5), the method comprising the steps of:projecting at least one light beam (10) into the space towards a screen in such a manner that at least a portion of a body, if present in the space, casts a shadow onto the screen; andanalyzing the shadow cast on the screen.

REFERENCES:
patent: 3758723 (1973-09-01), Green et al.
patent: 4171161 (1979-10-01), Jung
patent: 4695130 (1987-09-01), Medina et al.
patent: 5506913 (1996-04-01), Ibison et al.
patent: 5637866 (1997-06-01), Riener et al.
patent: 5742749 (1998-04-01), Foran et al.
patent: 6437782 (2002-08-01), Pieragostini et al.
patent: 6600509 (2003-07-01), Kent et al.
patent: 7530690 (2009-05-01), Divo et al.
patent: 2005/0134588 (2005-06-01), Aila et al.
patent: 0 448 803 (1990-12-01), None
patent: 1 037 181 (2000-09-01), None

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