[특허]Handheld radar frequency scanner for concealed object detection

[미국특허] Handheld radar frequency scanner for concealed object detection 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01S-013/04 G01S-013/00
출원번호	UP-0235533 (2005-09-27)
등록번호	US-7518542 (2009-07-01)
발명자 / 주소	Steinway, William Stilwell, Gregory Duvoisin, III, Herbert Fine, David H. Konduri, Ravi K.
출원인 / 주소	CyTerra Corporation
대리인 / 주소	Fish & Richardson P.C.
인용정보	피인용 횟수 : 10 인용 특허 : 15

초록 ▼

A handheld radar frequency scanner system for detecting objects concealed on a person, the system includes a radar transmitter coupled to a transmit antenna that is configured and positioned to direct a radar signal at a person, a radar receiver coupled to a receive antenna that is configured to detect a portion of the radar signal reflected by the person, and a processor connected to the radar receiver and operable to process the portions of the radar signals detected by the radar receiver to determine whether the person is carrying a concealed object. The system may produce a real-time alert, such as an audible alert, when a concealed object is detected.

대표청구항 ▼

We claim: 1. A handheld radar frequency scanner system for detecting objects concealed on a person, the system comprising: a radar transmitter coupled to a transmit antenna that is configured and positioned to direct a radar signal at a person; a radar receiver coupled to a receive antenna that is configured to detect a portion of the radar signal reflected by the person; a signal processor assembly including a processor, the signal processing assembly being connected to the radar receiver and operable to process the portion of the radar signal detected by the radar receiver to determine whether the person is carrying a concealed object on a body of the person by conducting a test in which a first characteristic of a first dielectric constant associated with the person is determined, and a second characteristic of a second dielectric constant associated with the concealed object is determined; and a display coupled to the signal processor assembly that is operable to produce an alert when a concealed object is detected. 2. The system of claim 1 wherein the display is configured to produce a real-time alert when a concealed object is detected. 3. The system of claim 2 wherein the display is configured to produce an audible alert. 4. The system of claim 2 wherein the display is configured to produce a visual alert. 5. The system of claim 2 wherein the display is configured to produce both a visual alert and an audible alert. 6. The system of claim 1 wherein the radar signal comprises a frequency between approximately 1.5 gigahertz and 12 gigahertz. 7. The system of claim 6 wherein the radar signal comprises an output power of less than one milliwatt. 8. The system of claim 6 wherein the radar signal comprises a frequency stepped signal. 9. The system of claim 8 wherein the processor is operable to conduct the test using a frequency-stepped scheme. 10. The system of claim 8 wherein the frequency stepped signal comprises frequencies at defined intervals throughout a defined frequency range. 11. The system of claim 1 wherein the handheld radar frequency scanner system comprises a monostatic radar system. 12. The system of claim 1 wherein the handheld radar frequency scanner system comprises a bistatic radar system. 13. The system of claim 1 wherein the first dielectric constant is determined during the test. 14. The system of claim 13 wherein the first dielectric constant is associated with skin of the person. 15. The system of claim 13 wherein the second dielectric constant is determined during the test. 16. The system of claim 1 wherein the processor is operable to conduct the test based upon a difference between the first dielectric constant and the second dielectric constant, wherein the difference is determined during the test. 17. The system of claim 1 wherein the processor is operable to determine whether the person is carrying a concealed object using a principal component analysis technique. 18. A method for detecting objects concealed on a person using a handheld radar frequency scanner system, the method comprising: directing a radar signal at a person; detecting a portion of the radar signal reflected by the person; processing the portion of the radar signal detected by the radar receiver determine whether the person is carrying a concealed object on a body of the person by conducting a test in which a first characteristic of a first dielectric constant associated with the person is determined, and a second characteristic of a second dielectric constant associated with the concealed object is determined; and producing a visual alert when a concealed object is detected. 19. The method of claim 18 further comprising wherein producing a visual alert comprises producing a real-time alert when a concealed object is detected.

이 특허에 인용된 특허 (15) 인용/피인용 타임라인 분석

Pretini ; Gisberto, Apparatus for protecting a room against penetration thereinto of armed persons.
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Gregory B. MacAleese ; Jerry Hausner ; Paul J. Menicucci ; Robert H. Gorman, Concealed weapons detection system.
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Huguenin G. Richard (South Deerfield MA) Goldsmith Paul F. (Leverett MA) Deo Naresh C. (Conway MA) Walker David K. (Colrain MA), Contraband detection system.
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Steinway William J. (Maitland FL) Thomas James E. (Orlando FL) Barrett Carl R. (Orlando FL) Beck Buddy G. (Fairfax VA), Earth-penetrating synthetic image radar.
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Lemelson Jerome H. (85 Rector St. Metuchen NJ 08840), Electronic detection systems and methods.
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Frazier Lawrence M. (West Covina CA), Handheld obstacle penetrating motion detecting radar.
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G. Dickey Arndt ; James R. Carl ; Kent A. Byerly ; Phong H. Ngo ; Larry G. Stolarczyk, Method for locating a concealed object.
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Michiguchi Yoshihiro (Ibaraki JPX) Nishi Masatsugu (Katsuta JPX) Hiramoto Kazuo (Hitachi JPX), Method of detecting unknown object and apparatus therefor.
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Wen J. Whan TW; George V. Keller, Non-obtrusive weapon detection system.
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Keller George V. (239 S. Dekker Dr. Golden CO 80401), Non-obtrusive weapon detection system and method for discriminating between a concealed weapon and other metal objects.
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George G. Chadwick, Object detection method and apparatus employing polarized radiation.
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Lawless, James C., Radar apparatus and method for detecting small slow moving targets.
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Sheen David M. (1917 Hood Richland WA 99352) Collins H. Dale (1751 Duluth Richland WA 99352) Hall Thomas E. (8301 W. Entiat Pl. Kennewick WA 99336) McMakin Douglas L. (2173 Shasta Ave. Richland WA 99, Real-time wideband holographic surveillance system.
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Robert E. Cousins ; Steven A. Shaw, System for A multi-purpose portable imaging device and methods for using same.
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Smith Steven W. (Poway CA), X-ray backscatter detection system.
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이 특허를 인용한 특허 (10) 인용/피인용 타임라인 분석

Buxton, Carey G; Huggins, John Scott, Detection of conductive material in a thin film.
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Holbrook, David S.; Adams, Christopher P.; Gregorich, Brent; Rajani, Umesh; Whitmire, Jason Porter; Bublitz, Scott D.; Hessenberger, Jeffrey C.; Scott, John S.; Huggins, Mark; Mergener, Matthew J., Electromagnetic scanning imager.
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Storz, Gregor Wolfgang; Shepheard, Robert Andrew Carr, Handheld radar.
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Dayi, Furkan; Boehnke, Ralf; Testar, Miquel; Blech, Marcel; Wang, Qi, Method for displaying an active radar image and handheld screening device.
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Nikolova, Natalia K.; McCombe, Justin J., On-body concealed weapon detection system.
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Mohamadi, Farrokh; Oijala, Mikko; Strauch, Paul, Remote interrogation for detection of activity or living organisms inside electronically conductive containers.
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Duvoisin, III, Herbert; Torres-Rosario, Juan Antonio; Sentelle, Christopher Gary; Carlson, Douglas O.; Holman, Glen A.; Trishaun, Marquette, Sensor head.
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Duvoisin, III, Herbert; Torres-Rosario, Juan Antonio; Sentelle, Christopher Gary; Carlson, Douglas O.; Holman, Glen A.; Trishaun, Marquette, Sensor head.
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Duvoisin, III, Herbert; Torres-Rosario, Juan Antonio; Sentelle, Christopher Gary; Carlson, Douglas O.; Holman, Glen A.; Trishaun, Marquette, Sensor head.
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Samaniego, Raymond; Pilcher, Christopher M.; Tomich, John L., Subterranean image generating device and associated method.
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[미국특허] Handheld radar frequency scanner for concealed object detection 원문보기