Method for reducing sidelobes of limited diffracton pulse-echo i

Details Method for reducing sidelobes of limited diffracton pulse-echo i Method for reducing sidelobes of limited diffracton pulse-echo i

1995-03-24

1996-02-20

Manuel, George

Surgery

Truss

Pad

367103, A61B 800

Patent

active

054921210

ABSTRACT:
An acoustic transducer produces a limited diffraction beam during the transmit portion of a pulse-echo sequence that has sidelobes extending away from the beam axis in defined sectors. During the receive portion of the pulse-echo sequence a receive aperture for a limited diffraction beam is employed having sidelobes extending away from the beam axis in defined sectors that do not overlap the transmit sidelobes. Both limited diffraction Bessel beams and limited diffraction X waves are employed, and an acoustic transducer producing tenth derivative X waves is described.

REFERENCES:
patent: 4495817 (1985-01-01), Hunt et al.
patent: 4784147 (1988-11-01), Moshfeghi
patent: 5309161 (1994-05-01), Urkowitz et al.
Experimental Verification of Nondiffracting X Waves, IEEE Transactions On Ultrasonics, Ferroelectrics, and Frequency Control, vol. 39, No. 3, pp. 441-446, May 1992, Lu, et al.
Nondiffracting X Waves-Exact Solutions to Free-Space Scalar Wave Equation and Their Finite Aperture Realizations, IEEE Transactions On Ultrasonics, Ferroelectrics, and Frequency Control, vol. 39, No. 1, pp. 19-31, Jan. 1992, Lu, et al.
Sidelobe Reduction for Limited Diffraction Pulse-Echo Systems, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 40, No. 6, pp. 735-746, Nov. 1993, Lu et al.
A Study of Two-Dimensional Array Transducers for Limited Diffraction Beams, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 41, No. 5, pp. 724-739, Sep. 1993, Lu et al.
Biomedical Ultrasound Beam Forming, Ultrasound in Med. & Biol., vol. 20, No. 5 pp. 403-428, 1994, Lu, et al.
In Vitro and In Vivo Real-time Imaging With Ultrasonic Limited Diffraction Beams, IEEE Transactions on Medical Imaging, vol. 12, No. 4, Dec. 1993, Lu et al.
A Study of Sidelobe Reduction for Limited Diffraction Beams, 1993 Ultrasonics Symposium, pp. 1077-1082, Lu et al.

Affiliated with

Also associated with

Rating

Method for reducing sidelobes of limited diffracton pulse-echo i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for reducing sidelobes of limited diffracton pulse-echo i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for reducing sidelobes of limited diffracton pulse-echo i will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1350785