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US 2013/0278343 A1Published application
Methods and apparatus for tuning devices having resonators
AssigneeSand 9, Inc.
InventorsDavid Locascio, Reimund Rebel, Jan H. Kuypers
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Abstract
Methods and apparatus for tuning devices having resonators are described. Phase shifters are included in the circuits and used to shift the phase of the output signal(s) of the resonators. In some implementations, the phase shifters are configured in a feedback loop with the resonators. One or more of the apparatus described herein may be implemented as part, or all, of a microelectromechanical system (MEMS).
Claims20
A method of tuning a device having a mechanical resonator, the method comprising:
- receiving an output signal of the mechanical resonator;
- producing a phase-shifted signal from the output signal;
- and
- inputting the phase-shifted signal to the mechanical resonator.
1 more element
Dependencies are inferred from the claim text.