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"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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US Patent 5081456 - Method of detecting unknown object and apparatus therefor
US Patent Issued on January 14, 1992
Estimated Patent Expiration Date:
January 14, 2009Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
January 14, 2009Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractIn visualizing an unknown object possessed by a person to be checked, a narrow pulsating radio wave beam is scanned over the whole surface of the person to observe the intensity of a reflected radio wave at each scan point. The frequency of the radio wave beam is set at a frequency easy to be transmitted by the human body to suppress the reflection from the human body and emphasize the unknown object to thereby discriminate between them. An image of the person to be checked is displayed and the portion having a strong reflection is color-displayed on the image to allow the check of the unknown object possessed by the person without contacting the person.Other References
| InventorsAssigneeApplicationNo. 180964 filed on 04/13/1988US Classes:342/22, TRANSMISSION THROUGH MEDIA OTHER THAN AIR OR FREE SPACE342/55, With television342/181, Color342/351Including a radiometerField of Search342/21, BASE BAND SYSTEM342/22, TRANSMISSION THROUGH MEDIA OTHER THAN AIR OR FREE SPACE342/27, PRESENCE DETECTION ONLY342/55, With television342/181, Color342/351Including a radiometerExaminersPrimary: Barron, Gilberto Jr.Attorney, Agent or FirmUS Patent References3500395, 3599211, 3713156, 3911435, 4064458Electromagnetic wave communication systemsIssued on: 12/20/1977 Inventor: De Loach, Jr. International ClassesG01S 013/89G01S 013/86 G01S 007/06 Foreign Application Priority Data1987-04-13 JP |
