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Foster; Steven G.
Greenfield, WI
No. of patents:

Patent Number Title Of Patent Date Issued
6174284 Ultrasound harmonic imaging techniques January 16, 2001
An ultrasonic imaging system for harmonic imaging includes a receiver which demodulates ultrasonic echo signals received by a transducer array and filters a band of fundamental frequencies from the echo signals by means of a notch filter. Images responsive to the filtered signals are pre
6047601 Self-tuning crystal notch filter April 11, 2000
A self-tuning crystal notch filter suitable for rejecting a carrier signal in a receiver channel of a receiver of an ultrasound imaging system. The crystal notch filter has a resonant frequency which is electronically tuned. Tuning is done under software control without operator inte
5529071 Increasing dynamic range with a barrel shifter June 25, 1996
A method for increasing dynamic range of ultrasound imaging signals uses a barrel shifter. The barrel shifter shifts large bit two's complement input data into a standard size bit two's complement output. The method, then, comprises the steps of reducing a large data bus to a smaller dat
5501221 Time gain compensation implementation March 26, 1996
A time gain compensation technique is applicable for use with ultrasound imaging systems, including systems having digital architecture. The time gain compensation apparatus of the present invention comprises a time gain compensation curve generator and the ability to drive the time gain
5501220 Digital generation of a dynamic apodization correction March 26, 1996
A dynamic apodization gain correction technique for use with ultrasound imaging systems comprises an apodization curve generator and the ability to drive the curve generator to provide digital generation of the apodization gain correction curve. The ability to drive the curve generat

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