Real-time wideband holographic surveillance system
Patent 5557283 Issued on September 17, 1996. Estimated Expiration Date: 
May 12, 2015. Estimated 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.
May 12, 2015. Estimated 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.Patent ReferencesContraband detection system Radiation imaging utilizing data reconstruction to provide transforms which accurately reflect wave propagation characteristics Real-time holographic surveillance system Patent #: 5455590 Inventors
ApplicationNo. 440279 filed on 05/12/1995US Classes:342/179, Image production367/8Acoustic holographyExaminersPrimary: Lobo, Ian J.International ClassesG01S 013/89G03H 005/00 AbstractA wideband holographic surveillance system including a transceiver for generating a plurality of electromagnetic waves; antenna for transmitting the electromagnetic waves toward a target at a plurality of predetermined positions in space; the transceiver also receiving and converting electromagnetic waves reflected from the target to electrical signals at a plurality of predetermined positions in space; a computer for processing the electrical signals to obtain signals corresponding to a holographic reconstruction of the target; and a display for displaying the processed information to determine nature of the target. The computer has instructions to apply a three dimensional backward wave algorithm.Other References
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