The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 2013
Filed:
Apr. 27, 2011
Luis Guillermo Villanueva Torrijo, Los Angeles, CA (US);
Rassul Karabalin, Pomona, CA (US);
Matthew Matheny, Diamond Bar, CA (US);
Philip X.-l. Feng, Beachwood, OH (US);
Michael C. Cross, Claremont, CA (US);
Michael L. Roukes, Pasadena, CA (US);
Luis Guillermo Villanueva Torrijo, Los Angeles, CA (US);
Rassul Karabalin, Pomona, CA (US);
Matthew Matheny, Diamond Bar, CA (US);
Philip X.-L. Feng, Beachwood, OH (US);
Michael C. Cross, Claremont, CA (US);
Michael L. Roukes, Pasadena, CA (US);
California Institute of Technology, Pasadena, CA (US);
Abstract
A parametric feedback oscillator includes a resonator which has at least one transduction element and at least one electromechanical resonating element. The resonator is configured to accept as input a parametric excitation signal at a frequencyand to provide a resonating output signal at a frequency ω. A cascaded feedback path in any electrically coupled cascade order includes at least one non-linear element, at least one phase shifter electrically, and at least one amplifier. The cascade feedback path is configured to receive as input the resonating output signal at a frequency ωand configured to provide as output a feedback path signal as the parametric excitation signal at a frequencyto the resonator. A parametric feedback oscillator output terminal is configured to provide the resonating output signal at the frequency ωas an output signal. A method of causing a parametric feedback oscillation is also described.