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US Patent 5859609 - Real-time wideband cylindrical holographic surveillance system
US Patent Issued on January 12, 1999
Estimated Patent Expiration Date:
September 11, 2016Estimated 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:
September 11, 2016Estimated 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.AbstractA wideband holographic cylindrical 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 Fast Fourier Transforms and obtain a three dimensional cylindrical image.Other References
| InventorsAssigneeApplicationNo. 714026 filed on 09/11/1996US Classes:342/179, Image production367/8Acoustic holographyField of Search342/179, Image production367/8Acoustic holographyExaminersPrimary: Lobo, Ian J.Attorney, Agent or FirmUS Patent References5073782, Contraband detection systemIssued on: 12/17/1991 Inventor: Huguenin, et al.5170170, Radiation imaging utilizing data reconstruction to provide transforms which accurately reflect wave propagation characteristics Issued on: 12/08/1992 Inventor: Soumekh5455590, Real-time holographic surveillance system Issued on: 10/03/1995 Inventor: Collins, et al.5557283Real-time wideband holographic surveillance system Issued on: 09/17/1996 Inventor: Sheen, et al. International ClassesG01S 013/89G03H 005/00 |
