Oscillators – Electromechanical resonator – Vibrating reed or string type
Reexamination Certificate
2006-04-06
2008-10-28
Pascal, Robert J. (Department: 2817)
Oscillators
Electromechanical resonator
Vibrating reed or string type
C331S049000, C331S176000
Reexamination Certificate
active
07443258
ABSTRACT:
There are many inventions described and illustrated herein. In one aspect, the present inventions relate to oscillator systems which employ a plurality of microelectromechanical resonating structures, and methods to control and/or operate same. The oscillator systems are configured to provide and/or generate one or more output signals having a predetermined frequency over temperature, for example, (1) an output signal having a substantially stable frequency over a given/predetermined range of operating temperatures, (2) an output signal having a frequency that is dependent on the operating temperature from which the operating temperature may be determined (for example, an estimated operating temperature based on a empirical data and/or a mathematical relationship), and/or (3) an output signal that is relatively stable over a range of temperatures (for example, a predetermined operating temperature range) and is “shaped” to have a desired turn-over frequency.
REFERENCES:
patent: 4415870 (1983-11-01), Zumsteg
patent: 4489289 (1984-12-01), Slobodnik et al.
patent: 4868524 (1989-09-01), Costlow et al.
patent: 5309116 (1994-05-01), Stone
patent: 5955932 (1999-09-01), Nguyen et al.
patent: 6124765 (2000-09-01), Chan et al.
patent: 6424074 (2002-07-01), Nguyen
patent: 6557419 (2003-05-01), Herb et al.
patent: 6995622 (2006-02-01), Partridge et al.
patent: 7106143 (2006-09-01), Bloch et al.
patent: 7211926 (2007-05-01), Quevy et al.
patent: 7248128 (2007-07-01), Mattila et al.
patent: 2005/0001698 (2005-01-01), Bouche et al.
patent: 2007/0024158 (2007-02-01), Bourgeois
“The dual-mode frequency-locked technique for the characterization of the temperature coefficient of permittivity of anisotropic materials”, Tobar et al., Measurement Science and Technology 15 (2004), pp. 29-34.
“Room Temperature Duel-Mode Oscillator”, Torrealba et al., Electronics Letters, Jan. 19, 2006, vol. 42, No. 2, pp. 99-100.
“Cryogenic Duel-Mode Resonator for a Fly-Wheel Oscillator for a Caesium Frequency Standard”, Tobar et al., IEEE Transactions on Ultrasonics, Ferrolectrics, and Frequency Control, vol. 49, No. 10, Oct. 2002, pp. 1340-1355.
“Second Generation 50 K Duel-Mode Sapphire Oscillator”, Anstie et al, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 53, No. 2, Feb. 2006, pp. 284-288.
“Improving the Frequency Stability of Microwave Oscillators by Utilizing the Duel-Mode Sapphire-Loaded Cavity Resonator”, Tobar et al., Measurement Science and Technology 13 (2002), pp. 1284-1288.
“New Method to Build a High Stability Sapphire Oscillator from the Temperature Compensation of the Difference Frequ3ency Between Modes of Orthogonal Polarization”, Tobar et al., IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 50, No. 3 Mar. 2003, pp. 214-219.
“Temperature-Insensitive Dual-Mode Resonant Sensors—A Review”, Vig, IEEE Sensors Journal, vol. 1, No. 1, Jun. 2001, pp. 62-68.
“Resonator Self-Tempearure-Sending Using a Dual-Harmonic-Mode Crystal Oscillator”, Schodowski, 43rdAnnual Symposium on Frequency Control, 1989, pp. 2-7.
“A Microcomputer-Compensated Crystal Oscillator Using a Duel-Mode Resonator”, Benjaminson et al., 43rdAnnual Symposium on Frequency Control, 1989, pp. 20-26.
“Beat Frequency Oscillator R7077”, Robinson, Ray, http://www.shlrc.mg.ed.au/˜robinson/museum/AWA—BFO.html, Oct. 18, 2005, 4 pages.
“Design and Realisation of a 100MHz Synthesis Chain from an X-Band Reference Signal”, Lardet-Vieudrin et al., , Joint Meeting 2003 IEEE International Frequency Control Symposium & 17thEuropean Frequency and Time Forum, Tampa, USA, May 5-8, 2003, pp. 560-564.
“Multiple Mode Micromechanical Resonators”, Brennen et al., Proc. IEEE Micro Electro Mechanical Systems Workshop (1990), pp. 9-14.
“Aging of Dual Mode Resonator for Microcomputer Compensated Crystal Oscillator”, Kim, Y., IEEE 2005, pp. 171-175.
“Digital Recursive Oscillator with Reduced Frequency versus Temperature Dependency Utilizing a Duel-Mode Crystal Oscillator”, Stofanik et al., IEEE 2005, pp. 517-521.
International Search Report. Mar. 13, 2008.
Goodley James E
Pascal Robert J.
Patterson & Sheridan L.L.P.
SiTime Corporation
LandOfFree
Oscillator system having a plurality of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oscillator system having a plurality of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oscillator system having a plurality of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4014276