Juin-Jet Hwang,Geoffrey H. Jones,Terrance R. Doherty,Lauren S. Pflugrath
申请号：
US12692483
公开号：
US08216146B2
申请日:
2010.01.22
申请国别(地区):
US
年份:
2012
代理人:
摘要：
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.
