Method and apparatus for controlling transducer multiplexing in ultrasound imaging system
Patent 5520186 Issued on May 28, 1996. Estimated Expiration Date: 
November 23, 2014. 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.
November 23, 2014. 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 ReferencesUltrasonic diagnostic apparatus Variable origin-variable acoustic scanning method and apparatus Acoustic imaging system Patent #: 5375470 InventorAssigneeApplicationNo. 344056 filed on 11/23/1994US Classes:600/437, Ultrasonic73/626, Switched600/447Electronic array scanningExaminersPrimary: Jaworski, Francis J.Attorney, Agent or FirmInternational ClassA61B 008/00AbstractA method and apparatus for controlling multiplexing of a transducer having more elements than the imaging system has receive channels. The active aperture is shifted in increments of a predetermined number of transducer elements, e.g., eight. While the active aperture is maintained constant for a predetermined number of vectors, the phase center of the vectors in the group is shifted so that offset is minimized. In the case wherein the active aperture is successively shifted by eight elements, the offset is varied between +4 and -4 during the interval between shifts of the active aperture.Field of SearchSwitched | |
