Image analysis – Image compression or coding – Transform coding
Reexamination Certificate
2007-06-12
2007-06-12
Chen, Wenpeng (Department: 2624)
Image analysis
Image compression or coding
Transform coding
C382S280000
Reexamination Certificate
active
10262635
ABSTRACT:
Apparatus and methods for performing a Fourier transform mechanically, using an array of one or more resonators. By tuning the resonators so that their natural frequencies correspond to harmonics of an input signal, the vibration of the resonators in response to the input signal may be measured to provide phase and amplitude information that is equivalent to the Fourier coefficients of the input signal. Preferably, the resonators are microelectromechanical (MEMS) resonators. Using MEMS resonators, the Fourier transform of a signal can be determined using substantially less power than would be consumed by a digital signal processor (DSP) or microprocessor performing similar calculations. MEMS resonator-based apparatus and methods according to various embodiments may be used for applications including compression and image processing.
REFERENCES:
patent: 268334 (1882-05-01), Abramson
patent: 2679013 (1954-05-01), Barnes
patent: 3162808 (1964-12-01), Haase
patent: 3182256 (1965-05-01), Andrew
patent: 3209250 (1965-09-01), Burns et al.
patent: 3786180 (1974-01-01), Macovski
patent: 4040091 (1977-08-01), Kornreich et al.
patent: 4099207 (1978-07-01), Kornreich et al.
patent: 4471445 (1984-09-01), Pernick
patent: 4754491 (1988-06-01), Mischler et al.
patent: 4780831 (1988-10-01), Iwata et al.
patent: 5589082 (1996-12-01), Lin et al.
patent: 6141455 (2000-10-01), Matsuzawa et al.
patent: 6219145 (2001-04-01), Gutierrez et al.
patent: 6275122 (2001-08-01), Speidell et al.
patent: 6317506 (2001-11-01), Helbig et al.
patent: 6370365 (2002-04-01), Callaway, Jr. et al.
patent: 6374677 (2002-04-01), Berlin et al.
patent: 6412131 (2002-07-01), Zhao et al.
patent: 6713938 (2004-03-01), Nguyen
patent: 6909808 (2005-06-01), Stanek
patent: 2001/0030489 (2001-10-01), Nguyen
patent: 2001/0033119 (2001-10-01), Nguyen
patent: 2005/0018295 (2005-01-01), Mendlovic et al.
patent: 2005/0149598 (2005-07-01), Mendlovic et al.
patent: 0 881 477 (1998-12-01), None
patent: 1 067 514 (2001-01-01), None
International Search Report for PCT/US 03/31192, May 5, 2004, 10 pages.
“Optical Microphone”, IBM Technical Disclosure Bulletin vol. 33, No. 1A, Jun. 1, 1990. pp. 371-377, IBM Corp. New York, US.
“Discrete Fourier Transform Using Capacitive Cantileavers”, IBM Technical Disclosure Bulletin vol. 40, No. 10, Oct. 1, 1997, pp. 53-55, IBM Corp. New York, US.
Bickford James A.
Ward Paul
Chen Wenpeng
Goodwin & Procter LLP
The Charles Stark Draper Laboratory Inc.
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