Differential partial beamforming
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United States of America Patent
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Issued Date -
Jun 16, 2005
app pub date -
Dec 7, 2004
filing date -
Dec 10, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Each transducer element of a transducer array in an ultrasound imaging system has two substantially identical analog delay circuits, the first of which is supplied with the echo signal received by the transducer element, the second of which is supplied with an inverted version of the echo signal received by the transducer element. After both signals have traversed their respective analog delay paths, one of them is inverted and then both of them are combined in order to substantially suppress the effects of localized common mode signals. Preferably, the first and second analog delay circuits are constructed to be substantially identical.
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