U.S. patent application number 09/755897 was filed with the patent office on 2003-05-08 for searching system using x-ray and millimeter-wave signal.
Invention is credited to Chae, Yeon-Sik, Park, Hyun-Chang, Rhee, Jin-Koo.
Application Number | 20030086525 09/755897 |
Document ID | / |
Family ID | 19701712 |
Filed Date | 2003-05-08 |
United States Patent
Application |
20030086525 |
Kind Code |
A1 |
Rhee, Jin-Koo ; et
al. |
May 8, 2003 |
SEARCHING SYSTEM USING X-RAY AND MILLIMETER-WAVE SIGNAL
Abstract
The present invention relates to a high efficient searching
apparatus or processing technique using a combination of X ray
signal and millimeter wave signal, which allows a practical and
effective method for searching human body to be conducted in air
ports or harbors. The apparatus according to the invention
comprises an X ray signal emitter 1 including an electronic element
2 producing X ray signal; an X ray signal detector 4 for receiving
an X ray signal; a millimeter wave emitter 5 provided in a
millimeter wave transceiver and including an electronic element 6
for producing millimeter wave; a millimeter wave detector 7 for
receiving millimeter wave; an image processor 8 for deducing image
of an object from the received X ray and millimeter wave signals; a
comparator 10 for comparing the deduced image with the
corresponding data from the image data base for objects 9 already
input; and a display 11 for displaying the image deduced from the
image processor 8 and for giving an alarm, as required. The
apparatus has such an improved resolving power as to reveal any
hidden product on human body and has an operating characteristic
stable to environmental disturbance so as to minimize the error
rate for the transmission of radio signal, with the result that the
reliability of the apparatus is remarkably improved.
Inventors: |
Rhee, Jin-Koo; (Seoul,
KR) ; Chae, Yeon-Sik; (Seoul, KR) ; Park,
Hyun-Chang; (Seoul, KR) |
Correspondence
Address: |
LEE & HONG
801 SOUTH FIQUEROA STREET
14TH FLOOR
LOS ANGELES
CA
90017
US
|
Family ID: |
19701712 |
Appl. No.: |
09/755897 |
Filed: |
January 4, 2001 |
Current U.S.
Class: |
378/63 |
Current CPC
Class: |
G01S 13/887 20130101;
G01V 5/0033 20130101 |
Class at
Publication: |
378/63 |
International
Class: |
G01N 023/04 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 27, 2000 |
KR |
2000-70981 |
Claims
What is claimed is:
1. A searching apparatus using a combination of X ray and
millimeter wave signal, which comprises an X ray signal emitter
including an electronic element producing X ray signal; an X ray
signal detector for receiving an X ray signal; a millimeter wave
emitter provided in a millimeter wave transceiver and including an
electronic element for producing millimeter wave; a millimeter wave
detector for receiving millimeter wave; an image processor for
deducing image of an object from the received X ray and millimeter
wave signals; a comparator for comparing the deduced image with the
corresponding data from the image data base for objects already
input; and a display for displaying the image deduced from the
image processor and for giving an alarm, as required.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a high efficient searching
apparatus or processing technique using a combination of X ray
signal and millimeter wave (EHF wave) signal, which allows a
practical and effective method for searching human body to be
conducted in air ports or harbors.
BACKGROUND OF THE INVENTION
[0002] The conventional searching apparatuses used to search
weapons or the like hidden under clothes so on at air ports or
harbors which regard the safety as the first priority depend on the
method, wherein X ray, potentially very harmful to human body, is
emitted, reflected and received for analytical evaluation.
[0003] The conventional apparatus, which was operated substantially
as in FIG. 1, was hardly capable of a precise detection because the
resolution of a searched object was much influenced by the
environmental condition or other interference signal due to
dependence on a signal of single band like X ray. This conventional
searching apparatus comprising a radio transceiver, which employs
only X ray signal, produces unclear image signal and tends to
malfunction, and therefore secondary individual confirmation by a
security officer should follow after passengers have passed the
searching stand, imparting displeasure to the passengers and
causing delay as main problems.
SUMMARY OF THE INVENTION
[0004] The object of the invention is to provide a searching
apparatus using a combination of X ray signal and millimeter wave
(EHF wave) signal, which operates stably under various
environmental conditions, can search and detect ultra small objects
unmanned and can give clear and precise images of objects.
[0005] To that end, the present invention is characterized by
including a technique for embodying an emitter module for producing
radio signal, which module includes an electronic element for
generating signal in the wave length range of millimeters, and for
embodying a detector module for receiving signals; a technique for
signal-processing in combination of the X ray in the conventional
searching apparatus; and a technique for comparing the embodied
image with other stored data and giving alarm as required.
BRIEF DESCRIPTION OF THE INVENTION
[0006] FIG. 1 shows the arrangement for a conventional searching
system using X ray signal, and
[0007] FIG. 2 shows the arrangement for a searching system using
the combination of X ray and millimeter wave signal according to
the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0008] A preferred embodiment of the invention will be described in
detail by referring to the accompanying drawing.
[0009] As can be seen in FIG. 2, the present invention which
relates to a high efficient searching apparatus has the following
constructional features: An X ray signal emitter 1 which has an
electronic element 2 for producing X ray signal and includes an X
ray signal detector 4 for receiving an X ray signal is provided. A
millimeter wave emitter 5 is also provided in a millimeter wave
transceiver and includes an electronic element 6 for producing
millimeter wave. The transceiver described above also includes a
millimeter wave detector 7 for receiving millimeter wave. The
apparatus according to the invention is also provided with an image
processor 8 for deducing image of an object from the received X ray
and millimeter wave signals and with a comparator 10 for comparing
the deduced image with the corresponding data from the image data
base for objects 9 already input. A display 11 for displaying the
image deduced from the image processor 8 and for giving an alarm as
required is included in the apparatus as well.
[0010] Now, an example of operating method is described in detail
by referring to the accompanying drawings.
[0011] When a man 3 passes through a body searching stand at an
airport or harbor, the X ray signal output from the X ray signal
emitter 1 which has an electronic element 2 for producing X ray
signal and the millimeter wave signal output from the millimeter
wave emitter 5 which composes a millimeter wave transceiver
together with the detector 7 and includes the electronic element 6
for producing millimeter wave are respectively received by the X
ray signal detector 4 and millimeter wave 7. The two signals
received, i.e. X ray signal and millimeter wave signal, are
transmitted to the image processing section 8 for producing
image.
[0012] The image processed in the image processing section 8 is
compared with the corresponding data from the image data base for
objects 9 already stored to detect any abnormal object. The image
data having passed the above-described comparator 10 is transferred
to the display 11 to display for the user and to produce an alarm
signal if an abnormal object is detected.
[0013] Thus, because the high efficient searching apparatus based
on the example of the invention as described above employs the
combination of X ray signal and millimeter ray signal, it has an
improved resolving power so as to reveal any hidden product on
human body effectively and has an operating characteristic stable
to environmental disturbance so as to minimize the error rate for
the transmission of radio signal, with the result that the
reliability of the apparatus is remarkably improved.
[0014] It is to be understood that, while the invention was
described mainly with respect to a preferable specific embodiment,
the invention is not restricted to that embodiment and a variety of
modifications and alterations would be possible to a man skilled in
the art by referring to the description or drawings presented here
and within the spirit of the invention and thus those modifications
or alterations are to fall within the scope of the invention, which
scope should be limited only by the attached claims.
* * * * *