Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SECURITY SYSTEM WITH MM-WAVE IMAGING
Document Type and Number:
WIPO Patent Application WO2005017559
Kind Code:
A3
Abstract:
A millimeter wave concealed weapons and contraband detection system. The preferred millimeter wave imaging equipment includes at least one millimeter wave frequency scanning antenna for collecting frequency dependent beams of millimeter wave radiation from a narrow one-dimensional field of view. The collected radiation is amplified at the collected frequencies and the amplified signals are separated into frequency dependent bins with a tapped-delay beam-former. These bins are then sampled to produce a one-dimensional image of the antenna field of view. A two dimensional image of a target may be obtained by moving the target across the field of view of the scanning antenna or by moving the antenna in order to scan its line of focus over the target. In preferred embodiments the millimeter wave imager is combined with an active eddy current type metal detector to provide a hybrid system providing important advantages over prior art security systems. Preferred embodiments include hybrid portal systems and hybrid hand­held systems.

More Like This:
WO/2005/080930INFRARED LOCATING DEVICE USING MULTIPLE SENSOR TECHNOLOGY
WO/2019/170127SCALABLE MILLIMETER-WAVE SECURITY SCREENING SYSTEM, SCANNING UNIT, AND METHOD FOR PERFORMING SECURITY SCREENING OF HUMAN BODY
JP3380550Description: Optical-Electrical System for Detecting String Vibration
Inventors:
LOUBERG JOHN A
KOLINKO VLADIMIR
Application Number:
PCT/US2004/025761
Publication Date:
July 14, 2005
Filing Date:
August 10, 2004
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TREX ENTPR CORP (US)
International Classes:
G01V8/00; H01Q3/04; H01Q3/22; H01Q3/26; H01Q21/00; H01Q25/00; (IPC1-7): G01S13/04; G01S13/88
Foreign References:
US20040140924A12004-07-22
US6480141B12002-11-12
US5227800A1993-07-13
Other References:
SHEEN ET AL: "Three Dimensional Millimeter-Wave Imaging from Concealed Weapon Detection", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 49, no. 9, September 2001 (2001-09-01), pages 1581 - 1592, XP001096609
See also references of EP 1654560A4
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: ELECTROMAGNETIC WAVE RESISTIVITY TOOL

Next Patent: TUBE-WAVE MONITORING OF UNDERGROUND FLUID RESERVOIRS