Sagnac effect based radio frequency electronic gyroscope incorporated in CMOS integrated circuit
US9212911B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Sep 15, 2014 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Sep 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/44
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radio frequency based electronic gyroscope function that may be incorporated in its entirety on a monolithic integrated circuit (IC). The detection and measurement of movement in a particular plane is based on the Sagnac effect as it applies to a radio frequency signal that propagates in two different directions in a loop that may be subject to rotational perturbation. In one embodiment, three mutually perpendicular loops that are incorporated into the same integrated circuit and are used to detect and measure movement in three planes (roll, pitch and yaw) thereby allowing a signal processing unit to quantify a general three dimensional movement. The gyroscope can be incorporated into an IC that is used in portable device, such as a mobile handset, to provide it with inertial navigation and movement detection and measurement capabilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.