Communications – electrical: acoustic wave systems and devices – Distance or direction finding – With beam steering – scanning – or focussing
Reexamination Certificate
2008-02-12
2009-10-20
Lobo, Ian J (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Distance or direction finding
With beam steering, scanning, or focussing
C367S103000, C367S138000
Reexamination Certificate
active
07606114
ABSTRACT:
Frequency-steered acoustic arrays transmitting and/or receiving multiple, angularly dispersed acoustic beams are used to generate 2D and 3D images. Input pulses to the arrays are generally non-linear, frequency-modulated pulses. Frequency-steered acoustic arrays may be provided in one-dimensional linear and two dimensional planar and curvilinear configurations, may be operated as single order or multiple order arrays, may employ periodic or non-periodic transducer element spacing, and may be mechanically scanned to generate 2D and 3D volumetric data. Multiple imaging fields of view may generated in different directions by switching the polarity of phase-shifted array transducer elements. Multiple frequency-steered arrays arranged in an X-configuration provide a wide, contiguous field of view and multiple frequency steered arrays arranged in a T-configuration provide orthogonally oriented fields of view. Methods and systems for operating acoustic arrays in a frequency-steered mode in combination a mechanical beam steering mode, electronic time-delay and phase shift beam forming modes, and phase comparison angle estimation modes are also provided.
REFERENCES:
patent: 2404391 (1946-07-01), Mason
patent: 3419845 (1968-12-01), Thiede et al.
patent: 3493759 (1970-02-01), Adler
patent: 3794964 (1974-02-01), Katakura
patent: 3905009 (1975-09-01), Hughes et al.
patent: 4350917 (1982-09-01), Lizzi et al.
patent: 4692722 (1987-09-01), Reichel et al.
patent: 4798210 (1989-01-01), Ledley
patent: 4821728 (1989-04-01), Ledley
patent: 5013979 (1991-05-01), Birleson
patent: 5150336 (1992-09-01), Sullivan et al.
patent: 5511043 (1996-04-01), Lindberg
patent: 5530683 (1996-06-01), Lindberg
patent: 5808967 (1998-09-01), Yu et al.
patent: 5923617 (1999-07-01), Thompson et al.
patent: 6108275 (2000-08-01), Hughes et al.
patent: 6176829 (2001-01-01), Vilkomerson
patent: 6310831 (2001-10-01), Dillman
patent: 6661739 (2003-12-01), Benjamin et al.
patent: 6678210 (2004-01-01), Rowe
patent: 6929608 (2005-08-01), Hutchinson et al.
Thompson, R.L., et al. “Two Dimensional and Three Dimensional Imaging Results Using Blazed Arrays.” Oceans 2001 MTS/IEEE Conference and Exhibition. Nov. 5-8, 2001. vol. 2, pp. 985-988. Washington, D.C.: Oceans 2001 MTS/IEEE Conference Committee.
Hughes, W.J., et al. “Tilted directional response patterns formed by amplitude weighting and a single 90° phase shift.” J. Acoust. Soc. Am., vol. 59, No. 5, pp. 1040-1045. (May 1976).
Frazier, C.H., et al. “Analysis of Resolution for an Amplitude Steered Array.” Proceedings—IEEE Ultrasonics Symposium. Oct. 17-20, 1999. vol. 2, pp. 1231-1234. New York: IEEE.
Frazier, C.H., et al. “A high frequency amplitude-steered array for real-time volumetric imaging.” J. Acoust. Soc. Am., vol. 112, No. 6, pp. 2742-2752. (Dec. 2002).
Frazier, C.H., et al. “Volumetric imaging with an amplitude-steered array.” J. Acoust. Soc. Am., vol. 112, No. 6, pp. 2753-2762. (Dec. 2002).
Yuan, L., et al. “General Two-Dimensional Planar Transducers and Blazed Array-Like Interdigital Transducer.” Proceedings—IEEE Ultrasonics Symposium. 1986. pp. 129-132. New York: IEEE.
Frazier, C.A.H. “A Two-Dimensional Amplitude-Steered Array for Real-Time Volumetric Acoustic Imaging.” Doctoral thesis, 2000, University of Illinois at Urbana-Champaign, Department of Electrical Engineering.
Mechler, M.V. “A Line Hydrophone with Frequency Dependent Beam Steering.” M.A. thesis. Aug. 1957. University of Texas at Austin, Department of Physics.
Bachelor Scott Thomas
Seawall Jason
Thompson R. Lee
Blueview Technologies, Inc.
Lobo Ian J
Speckman Ann W.
Speckman Law Group PLLC
LandOfFree
Systems and methods implementing frequency-steered acoustic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Systems and methods implementing frequency-steered acoustic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and methods implementing frequency-steered acoustic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4112952