Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder
Reexamination Certificate
2007-04-03
2007-04-03
Nguyen, Linh V. (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Differential encoder and/or decoder
C341S155000, C341S159000
Reexamination Certificate
active
10402049
ABSTRACT:
Dynamic focusing is performed at Nyquist rate FNfor the received signal. For each imaging point, a single-bit SDM sample is selected from each active array channel, according to the corresponding focusing delay. A block of data, centered at the selected SDM sample, is defined for each channel. Next, bit-wise block addition is performed to obtain the sum of all the blocks. The block addition output is fed to the demodulation filter. K(=┌L/M┐) demodulation filters are used. In another approach, the demodulation filters are placed just behind sigma-delta modulators. In each channel, K filters produce successively the demodulated signals for K consecutive imaging points. By taking the sum of samples retrieved from the same memory locations, dynamic focusing is achieved. Since each demodulation filter takes a single-bit SDM sequence as an input data, a simple accumulator calculates the sum of filter coefficients to be multiplied by input samples.
REFERENCES:
patent: 5150120 (1992-09-01), Yunus
patent: 5461389 (1995-10-01), Dean
patent: 5764523 (1998-06-01), Yoshinaga et al.
patent: 5937341 (1999-08-01), Suominen
patent: 6154161 (2000-11-01), Leme et al.
patent: 6208189 (2001-03-01), Freeman et al.
patent: 6243430 (2001-06-01), Mathe
patent: 6339647 (2002-01-01), Andersen et al.
patent: 6366227 (2002-04-01), Rigby
patent: 6603804 (2003-08-01), Khoini-Poorfard et al.
patent: 6639647 (2003-10-01), Inou
patent: 6670902 (2003-12-01), Melanson et al.
patent: 6683550 (2004-01-01), Al-Awadhi
patent: 6781533 (2004-08-01), Yap et al.
patent: 6895123 (2005-05-01), Li et al.
patent: 2003/0128868 (2003-07-01), Li et al.
patent: 2004/0252038 (2004-12-01), Robinson et al.
“A Low-Power, Low-Cost, High-Performance Beamformer for Medical Ultrasound Scanners,” by T.E. Linnenbrink, M.O'Donnell, S.R. Freeman, Marshall Quick, and Marc Morin; http://bul.eecs.umich.edu/research/handheld/;1999, no month.
“A New Architecture for Ultrasound Sigma-Delta Modulation Beamformer,” by Ho-San Han, Hye-Joung Park, and Tai-Kyong Song; Department of Electronics Engineering, Sogang University, South Korea; was submitted to the IEEE Society on Oct. 7, 2002 for consideration of publication.
“A Higher Order Topology for Interpolative Modulators for Oversampleing A/D Converts,” by Kirk C-H Chao, Shujaat Nadeem, Wai L. Lee, and Charles G. Sodini; IEEE Transactions on Circuits and Systems, vol. 37, No. 3, pp. 309-318; Mar. 1990.
“An Ultrasound Beamformer Using Oversampling,” by S.R. Freeman, M.K. Quick, M.A. Morin, R.C. Anderson, C.S. Desilets, T.E. Linnenbrink and M. O'Donnell; IEEE Ultrasonics Symposium, pp. 1687-1690; 1997, no month.
“Delta-Sigma Oversampled Ultrasound Beamformer with Dynamic Delays,” by Steven R. Freeman, Marshall K. Quick, Marc, R. Carver Anderson, Charles S. Desilets, Thomas E. Linnenbrink and Matthew O'Donnell; IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 46, No. 2, pp. 320-332; Mar. 1999.
“Digital Beamforming Using Non-Uniform Oversampling Delta-Sigma Conversion,” by Mustafa Karaman and Mucahit Kozak, IEEE Ultrasonics Symposium, pp. 1279-1282; 1999, no month.
“Digital Phased Array Beamforming Using Single-Bit Delta-Sigma Conversion With Non-Uniform Oversampling,” by Mucahit Kozak and Mustafa Karaman; IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 48, No. 4, pp. 9922-931; Jul. 2001.
“A Sigma-Delta-Based Sparse Synthetic Aperture Beamformer for Real-Time 3-D Ultrasound,” by Michael Inerfield, Geoffrey R. Lockwood and Steven L. Garverick; IEEE Transaction on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 49, No. 2, pp. 243-254; Feb. 2002.
“Efficient, High-Performance Ultrasound Beamforming Using Over sampling,” by R. Carver Anderson, Charles S. Desilets, Steven R. Freeman, Thomas E. Linnebrink, Marc A. Morin, Matthew O'Donnell, and Marshall K. Quick; Abbreviated Journal Title—Proc SPIE Int Soo Opt Eng. vol. 3341, pp. 220-227; 1998 (1 Page Abstract), no month.
“A New Architecture For a Single-Chip Multi-Channel Beamformer Based on a Standard FPGA,” by B.G. Tomov, and J.A. Jensen; Abbreviated Journal Title—IEEE Ultrasonics Symposium, Proceedings, An International Symposium Part Number—vol. 2, pp. 1529-33 vol. 2, pp. 1754; 2001 (1 Page Abstract), no month.
“Sigma-Delta Based Sparse Synthetic Aperture Beamformer for Real-Time 3-D,” by M. Inerfield, G.R. Lockwood and S.L. Garverick; IEEE Transaction on Ultrasonics, Ferroelectrics and Frequency Control, vol. 49, No. 2, pp. 243-54; Feb. 2002 (1 Page Abstract).
“A Dynamic Focusing Technique For Delta-Sigma-Based,” by Li Pai-Chi, Huang, Jing-Jung, Liu Hsin-Lin and M. O'Donnell; Abbreviated Journal—Ultrasonic Imaging, vol. 22, No. 4, pp. 197-205; Oct. 2001 (1 Page Abstract).
“Digital Beamforming Using Non-Uniform Oversampling Delta-Sigma Conversion,” by M. karaman, M. Kozak, S.C. Schneider, M. Levy, and B.R. McAvoy; Abbreviated Journal Title—IEEE Ultrasonics Symposium, Proceedings, International Symposium Part Number vol. 2 pp. 1279-82, vol. 2. pp. 1760; 1999 (1 Page Abstract), no month.
“Heterodyning Technique To Improve Performance of Delta-Sigma-Based Beamformers,” by S.R. Freemean, M.K. Quick, M.A. Morin, R.C. Anderson, C.S. Desilets, T.E. Linnenbrink and M. O'Donnell; IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 46, No. 4, pp. 771-90; 1999 (1 Page Abstract), no month.
“Delta-Sigma Oversampled Ultrasound Beamformer With Dynamic Delays,” by S.R. Freeman, M.K. Quick, M.A. Morin, R.C. Anderson, C.S. Desilets, T.E. Linnenbrink and M. O'Donnell; IEEE Transactions on Ultrasonics, Ferroelecrtics and Frequency Control, vol. 46, No. 2 pp. 320-32; Mar. 1999 (1 Page Abstract).
Han Ho-San
Park Hye-Joung
Song Tai-Kyong
Nguyen Linh V.
Siemens Medical Solutions USA , Inc.
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