Radiation imaging utilizing data reconstruction to provide transforms which accurately reflect wave propagation characteristics
Patent 5170170 Issued on December 8, 1992. Estimated Expiration Date: 
August 13, 2011. 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.
August 13, 2011. 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 References 3805596 3885224 Wave-energy imaging technique Patent #: 3953822 InventorAssigneeApplicationNo. 744603 filed on 08/13/1991US Classes:342/179, Image production73/603, Acoustic holography342/25D, With frequency domain processing of the SAR signals in azimuth (EPO)367/7, ACOUSTIC IMAGE CONVERSION600/443Anatomic image produced by reflective scanningExaminersPrimary: Barron, Gilberto Jr.Attorney, Agent or FirmInternational ClassesG01J 013/89G01J 015/89 A61B 008/15 G01N 029/06 AbstractA system for radiation imaging of an object in response to echo signals from a target area of the object, such as a region of the anatomy of a body. Data is obtained by time domain measurements at monostatic transducers which can be disposed in different locations. The data is processed by two-dimensional Fourier transformations reconstructed using a mapping function and which compensates for variation in the radiation pattern at the various detector locations by using a phase correction function which avoids the need for Fresnel or plane wave approximations. | |
