Ultrasound imaging system employing phase inversion subtraction to enhance the image
Patent 5632277 Issued on May 27, 1997. Estimated Expiration Date: 
June 28, 2016. 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.
June 28, 2016. 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 ReferencesMethod and apparatus for using Doppler modulation parameters for estimation of vibration amplitude Direct demodulation in ultrasound instruments Patent #: 5482044 InventorsAssigneeApplicationNo. 672823 filed on 06/28/1996US Classes:600/443Anatomic image produced by reflective scanningExaminersPrimary: Manuel, GeorgeInternational ClassA61B 008/00AbstractA method for generating an ultrasound image that enhances regions occupied by non linear scattering media. The method utilizes first and second ultrasound pulses that are alternatively transmitted into the specimen being imaged. The first and second ultrasound pulses are amplitude modulated harmonic signals, the first ultrasound pulse differing from the second ultrasound pulse by the phase of the harmonic signal. The echo signals generated by these pulses are measured and combined. In one embodiment of the present invention, the first and second ultrasound signals differ by 180 degrees and the echo signals are combined by adding the echo signals generated by each of the ultrasound pulses. | |
