Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1997-10-06
1999-10-12
Lateef, Marvin M.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
341155, A61B 812
Patent
active
059647086
ABSTRACT:
A method and apparatus are provided for reducing distortion in a dynamically delayed digital sample stream of an imaging system. The method includes the steps of delta-sigma modulating an input analog signal of the imaging system at a frequency above the Nyquist frequency of the input analog signal to generate a digital sample stream and changing a length of the sample stream to delay a portion of the sample stream while maintaining synchronism between a delta-sigma modulator and a demodulator of the system.
REFERENCES:
patent: 4772871 (1988-09-01), Suzuki et al.
patent: 5144308 (1992-09-01), Norsworthy
patent: 5203335 (1993-04-01), Noujaim et al.
patent: 5241310 (1993-08-01), Tiemann
patent: 5446917 (1995-08-01), Krisciunas et al.
patent: 5461389 (1995-10-01), Dean
patent: 5477859 (1995-12-01), Engeler
patent: 5668777 (1997-09-01), Schneider
Norman, O., A Band-Pass Delta-Sigma Modulator for Ultrasound Imaging at 160 MHZ Clock Rate, 31(12) IEEE Journal of Solid-State Circuits 2036-41 (Dec., 1996).
Baseri, R., et al., Testing Adaptive Jamming Cancellation Algorithms using a Digital Beamforming Array, Proceedings of the 1997 IEEE National Radar Conference (May 13-15, 1997).
Desilets Charles S.
Freeman Steven R.
Linnenbrink Thomas E.
Morin Marc A.
O'Donnell Matthew
Imam Ali M.
Lateef Marvin M.
Q-Dot Inc.
The Regents of the University of Michigan
LandOfFree
Beamformed ultrasonic imager with delta-sigma feedback control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Beamformed ultrasonic imager with delta-sigma feedback control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beamformed ultrasonic imager with delta-sigma feedback control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-647160