Method and apparatus for through-the-wall motion detection...

Details Method and apparatus for through-the-wall motion detection... Method and apparatus for through-the-wall motion detection...

2004-09-14

2008-12-02

Pihulic, Dan (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Transmission through media other than air or free space

C342S027000, C342S028000

Reexamination Certificate

active

07460053

ABSTRACT:
A CW radar (10) is used to detect motion of objects (22) behind a wall (20) by projecting a radar beam through the wall and by measuring the returns from the objects behind the wall, with a change in the phase difference between the transmitted and received CW signals providing an indication of motion behind the wall and thus the presence of an individual.

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patent: 2007/0024488 (2007-02-01), Zemany et al.
patent: 1 450 236 (1976-09-01), None

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