ClassID:

164623

G01C19/726 - CPC Classification

Classification description:

Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects; Turn-sensitive devices without moving masses; Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers Phase nulling gyrometers, i.e. compensating the Sagnac phase shift in a closed loop system

Recent Application in this class:
#1
20250337377
2025-10-30

FULLY DIFFERENTIAL QUADRATURE DRIVER

#2
20250102302
2025-03-27

DIRECTIONAL COUPLER WITH REDUCED PHASE DISTORTION

#3
20240377199
2024-11-14

RESONANT OPTICAL GYROSCOPE WITH A BROADBAND LIGHT SOURCE AND RIN REDUCTION TECHNIQUES

#4
20240344827
2024-10-17

MODULATION FOR THERMAL STABILITY IN RESONATOR FIBER OPTIC GYROSCOPE (RFOG)

#5
20240302168
2024-09-12

INTEGRATED PHOTONICS GYROSCOPE WITH COMMON INTENSITY MODULATION

#6
20240167818
2024-05-23

METHOD FOR REDUCING THE KERR EFFECT IN AN INTERFEROMETRY MEASURING DEVICE, AND INTERFEROMETRY MEASURING DEVICE CONFIGURED TO IMPLEMENT THIS METHOD

#7
20240011774
2024-01-11

GYROSCOPE ASSEMBLY WITH RING RESONATOR AND INTERFERENCE PATH

#8
20230408258
2023-12-21

Photoelectric sensing system and feedback module

#9
20230280189
2023-09-07

METHOD FOR CORRECTING GYROSCOPE DEMODULATION PHASE DRIFT

#10
20230068616
2023-03-02

Method for correcting gyroscope demodulation phase drift

#11
20220228865
2022-07-21

Sagnac effect RF based electromagnetic gyroscope using pulsed excitation

#12
20210231863
2021-07-29

Multicore fiber optic gyro

#13
20210025709
2021-01-28

Systems and methods for correcting errors in gyroscopes

#14
20200072608
2020-03-05

Hyperbolic modulation offset error reducer for an RFOG

#15
20190316907
2019-10-17

Large-dynamic-range fiber optic gyroscope

#16
20190113343
2019-04-18

Flange-bonded loopback for fiber-optic gyroscope (FOG)

#17
20190101392
2019-04-04

Multilayer waveguide optical gyroscope

#18
20190041215
2019-02-07

Systems and methods for reducing polarization-related bias errors in RFOGS

#19
20180259337
2018-09-13

Photonic integrated circuit for an interference fiber optic gyroscope (IFOG)

#20
20180094930
2018-04-05

Phase modulator for fiber-optic gyroscopes controlled in a zero-mean manner and a fiber-optic gyroscope

#21
20160363446
2016-12-15

Interferometric measurement device

#22
20160313125
2016-10-27

Rotationally biased fiber optic gyroscope

#23
20150316381
2015-11-05

Fiber optic gyroscope dead band error suppression

#24
20150316380
2015-11-05

Fiber optic gyroscope dead band error suppression

#25
20150116723
2015-04-30

Fibre-optic measurement device, rate gyro, and inertial stabilisation and navigation unit

#26
20150098089
2015-04-09

Optical passive resonator gyro with three beams

#27
20150025856
2015-01-22

Simulator for simulating the operation of a fiber optic gyroscope

#28
20150022819
2015-01-22

Fiber optic gyroscope dead band error suppression

#29
20150009505
2015-01-08

Fiber-optic measurement device, gyrometer, and navigation and inertial-stabilization system

#30
20140369699
2014-12-18

Systems and methods sideband heterodyning detection

#31
20140268164
2014-09-18

Suppression of lock-in effect due to a MIOC frequency response in a fiber-optic Sagnac interferometer

#32
20130271770
2013-10-17

Resonator fiber optic gyroscope utilizing laser frequency combs

#33
20120141062
2012-06-07

Systems and methods for driving an optical modulator

#34
20120134005
2012-05-31

Occasional calibration phase-difference modulation for sagnac interferometer

#35
20110304852
2011-12-15

System to reduce gyroscopic errors with limited power supply quality in a fiber optic gyroscope

#36
20110102801
2011-05-05

Determining and compensating for modulator dynamics in interferometric fiber-optic gyroscopes

#37
20100165349
2010-07-01

Systems and methods for monitoring angle random walk

#38
20100141953
2010-06-10

Automatic gain control for fiber optic gyroscope deterministic control loops

#39
20100026535
2010-02-04

Segmented optics circuit drive for closed loop fiber optic sensors

#40
20090201510
2009-08-13

Determining and compensating for modulator dynamics in interferometric fiber-optic gyroscopes

#41
20090161112
2009-06-25

Method and power-assisted optic-fiber measuring device and gyro

#42
20090128826
2009-05-21

High resolution IOC drive and method for driving fiber optic gyroscopes

#43
20090059237
2009-03-05

Digital feedback systems and methods for optical gyroscopes

#44
20080218765
2008-09-11

Signal processing for a Sagnac interferometer

#45
20070121116
2007-05-31

Minimal bias switching for fiber optic gyroscopes

#46
20070109549
2007-05-17

Optical gyro with free space resonator and method for sensing inertial rotation rate

#47
20070097374
2007-05-03

IFOG modulation technique for real-time calibration of wavelength reference under harsh environment

#48
20060232782
2006-10-19

Optical power measurement of a closed loop fiber optic gyroscope

#49
20060147146
2006-07-06

Digital phase modulator for a fiber-optic device

#50
16460121
2020-10-06

Fiber optic gyroscope control system using sub-tau modulation