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:
Jul. 06, 2010
Filed:
Sep. 05, 2007
Pan Zhiyu, Shanghai, CN;
Robert Candler, Palo Alto, CA (US);
Markus Lutz, Los Altos, CA (US);
Aaron Partridge, Cupertino, CA (US);
Gary Yama, Palo Alto, CA (US);
Pan Zhiyu, Shanghai, CN;
Robert Candler, Palo Alto, CA (US);
Markus Lutz, Los Altos, CA (US);
Aaron Partridge, Cupertino, CA (US);
Gary Yama, Palo Alto, CA (US);
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A system and method are provided which includes ring resonator structures coupled together with beam structure(s). The ring resonators are configured to operate in the contour or breathe mode. The center of the coupling beam structure is used as a nodal anchor point for anchoring the ring resonators and the beam structures, and also provides a reflecting interface. In an embodiment, the coupling beam structure includes two quarter-wavelength matched beams and an anchor located at a nodal point for coupling the two quarter-wavelength matched beams and ring resonator structures. The symmetric ring design also provides a differential drive and sense configuration while balancing the driving forces about the anchor located at the center of the beam structure. The system exhibits low energy losses while providing large sensing signals and a high quality factor (Q) of about 186,000 at a resonant frequency of about twenty-nine (29) MHz.