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:
Jun. 30, 2020
Filed:
Feb. 15, 2019
Hrl Laboratories, Llc, Malibu, CA (US);
Logan D. Sorenson, Agoura Hills, CA (US);
Raviv Perahia, Agoura Hills, CA (US);
David T. Chang, Calabasas, CA (US);
Randall L. Kubena, Oak Park, CA (US);
Deborah J. Kirby, Calabasas, CA (US);
Hung Nguyen, Los Angeles, CA (US);
Richard J. Joyce, Thousand Oaks, CA (US);
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
A sensor includes an acceleration or magnetic field sensitive microelectromechanical systems (MEMS) resonator, configured to oscillate in at least a first normal mode and a second normal mode. The sensor further includes: a coarse readout circuit configured to drive the first normal mode, measure a motion of the first normal mode, and derive from the measured motion a coarse measurement of the true acceleration or true external magnetic field; and a fine readout circuit configured to drive the second normal mode, measure a motion of the second normal mode, and derive from the measured motion and the coarse measurement a measurement of the difference between the true acceleration or true external magnetic field and the coarse measurement.