Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2007-02-07
2010-11-02
Zimmerman, Brian A (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S572200, C340S572500, C340S572700, C333S193000, C333S195000, C333S196000, C375S151000, C375S153000
Reexamination Certificate
active
07825805
ABSTRACT:
Apparatus, systems, devices and methods for providing an orthogonal frequency coding technique for surface acoustic wave sensors incorporating the use of multiple parallel acoustic tracks to provide increased coding by phase shifting and delaying a code sequence. The surface acoustic wave sensor includes parallel tracks with multiple reflectors with differing delay offsets to form a complex code sequence. The reflectors may be uniform, but alternatively could include fingers withdrawn, have reflector position modulation, differing frequencies or be spatially weighted.
REFERENCES:
patent: 4200849 (1980-04-01), Malocha
patent: 4737790 (1988-04-01), Skeie et al.
patent: 5028831 (1991-07-01), Malocha et al.
patent: 6150921 (2000-11-01), Werb et al.
patent: 7005964 (2006-02-01), Edmonson et al.
patent: 7005987 (2006-02-01), Sinnett et al.
patent: 7053524 (2006-05-01), Edmonson et al.
patent: 7105980 (2006-09-01), Abbott et al.
patent: 7132778 (2006-11-01), Nysen et al.
patent: 2004/0036381 (2004-02-01), Abbott et al.
patent: 2006/0049714 (2006-03-01), Liu et al.
Malocha, D.C., Puccio, D., Gallagher, D., [online], retrieved on Aug. 17, 2006, “SAW Sensors Using Orthongonal Frequency Coding,” (2004) IEEE International . . . , Publication, 4 pages, Retrieved from: http://www.caat.engr.ucf.edu/Publicaitons/SAW%20Sensors%20Orthogonal%20Frequency%20Coding.pdf.
Malocha, D.C., Puccio, D., Gallagher, D., “Orthogonal Frequency Coding for SAW Device Applications,”Ultrasonics Symposium, (2004)IEEE, vol. 2, Aug. 23-27, 2004, pp. 1082-1085, vol. 2, Digital Object Identifier 10.1109/ULTSYM.2004.1417965.
“Orthogonal Frequency Coding for SAW Tagging and Sensors,” [Online] 1 page, [retrieved on Aug. 11, 2006] (2006) Inst. Of Electrical and Electronics Engineers, Abstract Only, Retrieved from: http://www.ieee-uffc.org/archive/uffc/trans/Toc/abs/06/t0620377.htm.
Puccio, D., Malocha, D.C., Saldanha, N., “Implementation of Orthogonal Frequency Coded SAW Devices Using Apodized Reflectors,”Frequency Control Symposium and Exposition, 2005, Proceedings of the 2005 IEEE International, Aug. 29-31, 2005, pp. 892-896, Digital Object Identifier 10.1109/FREQ.2005.1574051.
S.E. Carter and D.C. Malocha, “SAW device implementation of a weighted stepped chirp code signal for direct sequence spread spectrum communication systems”, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency control, vol. 47, Jul. 2000, pp. 967-973.
T. Omori, J. Akasaka, M. Arai, K. Hashimoto, M. Yamaguchi, “Optimisation of weighted SAW grating reflectors with minimized time delay deviation,” Proc. IEEE International Frequency Control Symposium and PDA Exhibition, 2001, pp. 666-670.
P.V. Wright, “Modeling and experimental measurements of the reflection properties of SAW metallic gratings,” Proc. IEEE International Ultrasonics Symposium, 1984, pp. 54-63.
W.J. Tanski, “SAW resonators utilizing withdrawal weighted reflectors,” IEEE Transactions on Sonics and Ultrasonics, vol. 26, No. 6, pp. 404-410, Nov. 1979.
P.D. White, R.F. Mitchell, R. Stevens, P. Moore, M. Redwood, “Synthesis and design of weighted reflector banks for SAW resonators,” Proc. IEEE International Ultrasonics Symposium, 1978, pp. 634-638.
Malocha Donald
Puccio Derek
Law Offices of Brian S. Steinberger , P.A.
Rushing Mark
Steinberger Brian S.
University of Central Florida Research Foundation Inc.
Wood Phyllis K.
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