Production of images
Patent 5187687 Issued on February 16, 1993. Estimated Expiration Date: 
February 16, 2010. 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.
February 16, 2010. 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 ReferencesUltrasound imaging apparatus for providing simultaneous B-scan and Doppler data Ultrasonic acoustic imaging apparatus Body imaging using vectorial addition of acoustic reflection to achieve effect of scanning beam continuously focused in range Producing pseudocolor images for diagnostic ultrasound imaging AM/FM hybrid ultrasonic imaging Patent #: 4691707 InventorsAssigneeApplicationNo. 220188 filed on 07/18/1988US Classes:367/7, ACOUSTIC IMAGE CONVERSION367/11, With memory means600/437UltrasonicExaminersPrimary: Pihulic, Daniel T.Attorney, Agent or FirmForeign Patent References
International ClassesG01N 029/00G03B 042/00 Foreign Application Priority Data1985-06-20 CHAbstractFor reducing speckle in echo signals derived from reflections of pulsed coherent waves, the echo signals are subjected to amplitude and phase/frequency demodulation and the resultant amplitude and phase/frequency data are multiplied to generate an image signal. Selective control of the multiplication process may be provided in accordance with signal amplitude and/or signal-to-noise ratio.Other References
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