Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2011-06-14
2011-06-14
Rosenau, Derek J (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
Reexamination Certificate
active
07960894
ABSTRACT:
A generator for exciting a piezoelectric transducer, includes at least one digital processor unit. The digital processor unit is configured to operate at least in an iterative operation stage including more than two successive iterations. Each iteration includes: exciting the transducer at a plurality of frequencies in a frequency band about a set-point frequency; during transducer excitation, acquiring one or more values related to at least one electrical magnitude associated with the excitation of the transducer for a plurality of frequencies in the frequency band; and analyzing the values acquired to determine a new set-point frequency for a subsequent iteration.
REFERENCES:
patent: 3904896 (1975-09-01), Guntersdorfer
patent: 4689515 (1987-08-01), Benndorf et al.
patent: 4901034 (1990-02-01), Frank-Peter
patent: 5164992 (1992-11-01), Turk et al.
patent: 5518179 (1996-05-01), Humberstone et al.
patent: 5588592 (1996-12-01), Wilson
patent: 5661359 (1997-08-01), Katsuragawa
patent: 6296196 (2001-10-01), Denen et al.
patent: 6402046 (2002-06-01), Löser
patent: 2002/0129813 (2002-09-01), Litherland et al.
patent: 0 123 277 (1984-10-01), None
patent: 0 219 693 (1987-04-01), None
patent: 2 802 836 (2001-06-01), None
patent: 6-254455 (1994-09-01), None
patent: P1997-0060927 (1997-08-01), None
patent: P1998-082154 (1998-11-01), None
patent: P2000-0050405 (2000-08-01), None
patent: P2000-0061100 (2000-10-01), None
patent: WO 00/51747 (2000-09-01), None
patent: WO 00/53337 (2000-09-01), None
French Search Report for FR 0652876, dated Apr. 17, 2007.
English language abstract of EP 0 123 277 A2, Oct. 31, 1984.
English language abstract of JP 6-254455, Sep. 13, 1994.
Sung Uk Lee et al., “Real-Time Facial Feature Detection for Person Identification System”, IAPR Workshop on Machine Vision Application, Nov. 2000, 4 pages, Tokyo, Japan XP-002340583.
Bernd Heisele et al., “Feature Reduction and Hierarchy of Classifiers for Fast Object Detection in Video Images”, Proceedings of the IEEE Computer Conference on Computer Vision and Pattern Recognition, Dec. 8, 2001, pp. II-18 to II-24, vol. 1 of 2, IEEE Comp. Soc. US, Los Alamitos, CA, XP-010584095.
Leonardo C. Topa et al., “Edge Detection and Thinning in Time-Varying Image Sequences Using Spatio-Temporal Templates”, Pattern Recognition, 1989, pp. 143-154, vol. 22, No. 2, Pergamo Press plc, Great Britain, XP-002340584.
N. Bassiou et al., “Frontal Face Detection Using Support Vector Machines and Back-Propagation Neural Networks”, Proceedings 2001 International Conference on Image Processing, Oct. 7-10, 2001, pp. 1026-1029, vol. 1 of 3, Conf. 8, IEEE, U.S., XP-010565037.
Gabor, “Eye Detection Based on Gabor Transforms”, Journal of Circuits and Systems, Dec. 2001, vol. 6, No. 4.
Heisele, Bernd et al., “Feature Reduction and Hierarchy of Classifiers for Fast Object Detection in Video Images”, Proceedings of the IEEE Computer Conference on Computer Vision and Pattern Recognitions, Aug. 21, 2001, Los Alamitos, CA, IEEE.
Topa, Leonardo C., et al., “Edge detection and thinning in time-varying image sequences using spatio-temporal templates”, Pattern Recognition, 1989, Abstract only, vol. 22, Issue 2.
Finnegan, Henderson & Farabow, Garrett & Dunner, L.L.P
L'Oreal S.A.
Rosenau Derek J
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