Ultrasonic Signal Processor for a Hand Held Ultrasonic Diagnostic Instrument

A hand held ultrasonic instrument is provided in a portable unit which performs both B mode and Doppler imaging. The instrument includes a transducer array mounted in a hand-held enclosure, with an integrated circuit transceiver connected to the elements of the array for the reception of echo signal...

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Bibliographische Detailangaben
Hauptverfasser:	PFLUGRATH LAUREN S, JONES GEOFFREY H, HWANG JUIN-JET, DOHERTY TERRENCE R
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ANALOGOUS ARRANGEMENTS USING OTHER WAVES APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DIAGNOSIS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY HUMAN NECESSITIES HYGIENE IDENTIFICATION LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEDICAL OR VETERINARY SCIENCE METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHOTOGRAPHY PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SOUND-PRODUCING DEVICES SURGERY TESTING TRANSMISSION
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Beschreibung
Zusammenfassung:	A hand held ultrasonic instrument is provided in a portable unit which performs both B mode and Doppler imaging. The instrument includes a transducer array mounted in a hand-held enclosure, with an integrated circuit transceiver connected to the elements of the array for the reception of echo signals. A digital signal processing circuit performs both B mode and Doppler signal processing such as filtering, detection and Doppler estimation, as well as advanced functions such as assembly of multiple zone focused scanlines, synthetic aperture formation, depth dependent filtering, speckle reduction, flash suppression, and frame averaging.