Patent ID: 7692150

Claim:
A real time imaging expandable passive millimeter wave system for detecting concealed objects comprised of; human body detector sensors ( 10 A, 10 B) which detect human bodies passing a scanner ( 20 ); passive millimeter wave image sensor modules ( 12 ) which are arranged horizontally or vertically on the scanner ( 20 ) to acquire millimeter wave images radiated from human body in vertical axes at certain time intervals; an amplifier ( 13 ) which amplifies the DC voltage from said passive millimeter image sensor modules ( 12 ) to a certain level; an analog-digital (A/D) converter ( 14 ) which transforms the DC voltage amplified with said amplifier ( 13 ) to digital signals; a mobility detector ( 15 ) which detects the movement of a human body passing a predetermined position to acquire millimeter wave signals from a divided part of the human body; a digital signal processor ( 16 ) which processes signals obtained by said passive millimeter image sensor modules ( 12 ), with a time and position of the divided part obtained from said mobility detector ( 15 ) and; a monitor which displays the signals processed by said digital signal processor ( 16 ).