US 12,422,280 B2
Method for correcting gyroscope demodulation phase drift
Luca Guerinoni, Alzano Lombardo (IT); and Gabriele Gattere, Castronno (IT)
Assigned to STMICROELECTRONICS S.r.l., Agrate Brianza (IT)
Filed by STMICROELECTRONICS S.r.l., Agrate Brianza (IT)
Filed on May 9, 2023, as Appl. No. 18/314,650.
Application 18/314,650 is a continuation of application No. 17/460,030, filed on Aug. 27, 2021, granted, now 11,668,585.
Prior Publication US 2023/0280189 A1, Sep. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01C 25/00 (2006.01); G01C 19/72 (2006.01)
CPC G01C 25/005 (2013.01) [G01C 19/726 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device, comprising:
a gyroscope; and
a quadrature compensation driver coupled to the gyroscope, the quadrature compensation driver configured to apply a test signal to the gyroscope during a testing period, applying the test signal during the testing period to the gyroscope includes applying a first phase of the test signal with a first polarity during a first period of the testing period, reversing the test signal to a second polarity opposite to the first polarity, and applying a second phase of the test signal with the second polarity during a second period of the testing phase following the first period.