ClassID:

164624

G01C19/727 - 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 using a passive ring resonator

Recent Application in this class:
#1
20260098727
2026-04-09

RESONANT OPTICAL GYROSCOPE USING OPTICAL FREQUENCY COMBS EACH OF WHOSE SPECTRAL COMPONENTS ARE NOT PHASE LOCKED

#2
20260063422
2026-03-05

INTERFEROMETRIC RESONATOR OPTICAL GYROSCOPE WITH OPTICAL FREQUENCY COMB

#3
20260022937
2026-01-22

CONTROL OF LASER FREQUENCY IN AN OPTICAL GYROSCOPE WITH A RING RESONATOR

#4
20260016355
2026-01-15

IMPLEMENTATION OF A DUAL FABRY-PEROT PHOTONIC PRESSURE SENSOR

#5
20250383205
2025-12-18

SENSOR UNIT AND METHOD FOR OPERATING A SENSOR UNIT

#6
20250189312
2025-06-12

OPTICAL CIRCUIT FOR COMPENSATING OPTICAL LEAD FLUCTUATIONS IN AN RFOG

#7
20250109941
2025-04-03

SYSTEMS AND METHODS FOR EFFECTIVE RELATIVE INTENSITY NOISE SUBTRACTION FOR A BROADBAND RESONATOR OPTICAL GYROSCOPE

#8
20250102304
2025-03-27

FIBRE-OPTIC INTERFEROMETER BASED ON A MONOFREQUENCY LASER SOURCE AND INTERFEROMETRY METHOD CORRECTED FOR PARASITIC REFLECTIONS

#9
20250102302
2025-03-27

DIRECTIONAL COUPLER WITH REDUCED PHASE DISTORTION

#10
20250093158
2025-03-20

INTERFEROMETRIC RESONATOR OPTICAL GYROSCOPE WITH OPTICAL FREQUENCY COMB

#11
20250067560
2025-02-27

APPARATUS AND METHOD FOR ENHANCED BEAT NOTE DETECTION

#12
20250052575
2025-02-13

RFOG EMPLOYING SERRODYNE FREQUENCY SHIFTING

#13
20250020466
2025-01-16

STABILITY ENHANCED RESONATOR FIBER OPTIC GYRO (RFOG)

#14
20250012572
2025-01-09

RESONATOR OPTICAL GYROSCOPES WITH DUAL BROADBAND LIGHT SOURCES

#15
20240401951
2024-12-05

OPTICAL GYROSCOPE PDH OFFSET COMPENSATION

#16
20240377199
2024-11-14

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

#17
20240344827
2024-10-17

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

#18
20240328783
2024-10-03

PHOTONICS GYROSCOPE WITH BROADBAND LIGHT SOURCE

#19
20240302168
2024-09-12

INTEGRATED PHOTONICS GYROSCOPE WITH COMMON INTENSITY MODULATION

#20
20240271937
2024-08-15

Resonator optical gyroscope with diminished bias error

#21
20240210175
2024-06-27

INTEGRATED PHOTONICS CHIP WITH ELECTRO-OPTIC MATERIAL BASED WAVEGUIDE COMPONENTS

#22
20240168220
2024-05-23

RESONANT FIBRE OPTIC GYROSCOPES USING HOLLOW CORE OPTICAL FIBRE AND METHODS THEREOF

#23
20240019327
2024-01-18

Implementation of a dual Fabry-Perot photonic pressure sensor

#24
20240011774
2024-01-11

GYROSCOPE ASSEMBLY WITH RING RESONATOR AND INTERFERENCE PATH

#25
20230417535
2023-12-28

Extended reach ring interferometer with multifiber optical cable for event detection, location, and characterization

#26
20230417534
2023-12-28

Extended reach ring interferometer having reference coil for mitigating signal fading

#27
20230332894
2023-10-19

RING WAVEGUIDE BASED INTEGRATED PHOTONICS OPTICAL GYROSCOPE WITH BALANCED DETECTION SCHEME

#28
20230296381
2023-09-21

Integrated photonics optical gyroscopes optimized for autonomous vehicles

#29
20230184554
2023-06-15

CONTROL OF LASER FREQUENCY IN AN OPTICAL GYROSCOPE WITH A RING RESONATOR

#30
20230160697
2023-05-25

Interferometer with a looped or straight optical fiber

#31
20230097179
2023-03-30

Reducing rotation sensing errors from laser source signal and modulation cross-talk

#32
20230009601
2023-01-12

Interferometric fibre optic gyroscopes using hollow core optical fibre and methods thereof

#33
20220260373
2022-08-18

System architecture for integrated photonics optical gyroscopes

#34
20220187075
2022-06-16

Ring waveguide based integrated photonics optical gyroscope with balanced detection scheme

#35
20220128362
2022-04-28

Systems and methods for enhanced optical power control

#36
20220082385
2022-03-17

Polarization-maintaining fully-reciprocal bi-directional optical carrier microwave resonance system and angular velocity measurement method thereof

#37
20220026211
2022-01-27

Injection locking resonator fiber optic gyroscope

#38
20210389128
2021-12-16

Systems and methods to reduce differential harmonics of resonance tracking modulation in a resonant fiber optic gyroscope

#39
20210341289
2021-11-04

Ring waveguide based integrated photonics optical gyroscope with gain tuning for enhanced performance

#40
20210325169
2021-10-21

Extended reach ring interferometer with at least two broadband light sources and signal antifading topology for event detection, location and characterization

#41
20210311248
2021-10-07

Resonant fibre optic gyroscopes using hollow core optical fibre and methods thereof

#42
20210278215
2021-09-09

Stimulated brillouin ring laser gyroscope with optical frequency offset of counterpropagating pump laser signals

#43
20210262799
2021-08-26

Gyroscope with reduced bias errors due to resonance asymmetries

#44
20210254977
2021-08-19

High-bandwidth phase lock loop circuit with sideband rejection

#45
20210180953
2021-06-17

Stimulated brillouin scattering gyroscope

#46
20210156687
2021-05-27

Ring waveguide based integrated photonics optical gyroscope with gain tuning for enhanced performance

#47
20210116246
2021-04-22

Integrated photonics optical gyroscopes optimized for autonomous terrestrial and aerial vehicles

#48
20210055108
2021-02-25

Sideband heterodyne switching for resonator fiber optic gyroscopes (RFOGs)

#49
20210025709
2021-01-28

Systems and methods for correcting errors in gyroscopes

#50
20210010811
2021-01-14

System architecture for integrated photonics optical gyroscopes

#51
20200278207
2020-09-03

Integrated optical gyroscope with noise cancellation

#52
20200072609
2020-03-05

APPARATUS AND METHOD FOR DIMINISHED BIAS ERROR DUE TO POLARIZATION MISMATCH

#53
20200072608
2020-03-05

Hyperbolic modulation offset error reducer for an RFOG

#54
20200041269
2020-02-06

Resonator fiber-optic gyro with quadrature error reducer

#55
20200025569
2020-01-23

Device comprising a ring optical resonator

#56
20200025568
2020-01-23

Apparatus for enhanced beat note detection

#57
20190383614
2019-12-19

Second-order passive ring interferometer sensor and method

#58
20190258004
2019-08-22

Metallic blinder between optical waveguides to reduce cross talk

#59
20190226847
2019-07-25

Microelectromechanical system (MEMS) device readout with optical directional coupler

#60
20190219396
2019-07-18

Apparatus and method for diminished bias error due to polarization mismatch

#61
20190212148
2019-07-11

Resonant fiber optical gyroscope using antiresonant nodeless fiber

#62
20190049249
2019-02-14

Optical gyroscope, electro-optic system, and methods of forming the same

#63
20190041215
2019-02-07

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

#64
20190011261
2019-01-10

Displacement sensor with segmented ring microresonator

#65
20190003834
2019-01-03

Resonant fiber optic gyroscope with hollow core fiber

#66
20180358772
2018-12-13

Apparatus and method for an optical resonator with an integrated Bragg grating

#67
20180356229
2018-12-13

Integrated optical gyroscope with noise cancellation

#68
20180328732
2018-11-15

Systems and methods for dynamic bias offset operation in resonator fiber optic gyroscope

#69
20180252527
2018-09-06

Rotation sensor, rotation sensing method, and applications

#70
20180143022
2018-05-24

Apparatus and method for diminishing bias error in resonant fiber optic gyroscopes

#71
20170299390
2017-10-19

Compact three-frequency resonant optical gyroscope

#72
20170146346
2017-05-25

Resonator fiber optic gyroscope resonance detection demodulator reference phase corrector

#73
20160363446
2016-12-15

Interferometric measurement device

#74
20160334217
2016-11-17

Systems and methods for resonance switching resonator fiber optic gyroscopes (RFOGs) with feed-forward processing

#75
20160202063
2016-07-14

Energy-efficient optic gyroscope devices

#76
20160116288
2016-04-28

Angular velocity detection method adopting bi-directional full reciprocal coupling optoelectronic oscillator

#77
20160069687
2016-03-10

Optical rotation sensor as well as method of manufacturing an optical rotation sensor

#78
20160047655
2016-02-18

Resonant fiber optic gyroscope with polarizing crystal waveguide coupler

#79
20160025494
2016-01-28

Fibre-optic interferometric measurement device comprising a ring resonator, gyrometer and inertial attitude or navigation unit comprising such a device

#80
20160003619
2016-01-07

Resonator fiber optic gyroscope employing common cavity length modulation along with high bandwidth laser stabilization

#81
20150369606
2015-12-24

Small low cost resonator fiber optic gyroscope with reduced optical errors

#82
20150369605
2015-12-24

Symmetric three-laser resonator fiber optic gyroscope

#83
20150362318
2015-12-17

Sagnac effect based radio frequency electronic gyroscope incorporated in CMOS integrated circuit

#84
20150316382
2015-11-05

Systems and methods for providing intensity stabilization for a resonator fiber optic gyroscope

#85
20150285635
2015-10-08

Resonant fiber optic gyroscopes with multi-core transport fiber

#86
20150260521
2015-09-17

Rotation-sensitive semiconductor ring laser device using the nonlinear Sagnac effect

#87
20150260520
2015-09-17

Fiber resonator gyroscope with low round trip loss and high output power

#88
20150241218
2015-08-27

Method and apparatus of monitoring and tracking optical frequency differences of modulated beams

#89
20150070707
2015-03-12

Laser with transmission and reflection mode feedback control

#90
20150015892
2015-01-15

RFOG with low chromatic dispersion

#91
20140240712
2014-08-28

Method and system for detecting optical ring resonator resonance frequencies and free spectral range to reduce the number of lasers in a resonator fiber optic gyroscope

#92
20140211211
2014-07-31

RFOG with optical heterodyning for optical signal discrimination

#93
20140204387
2014-07-24

Narrow bandwidth reflectors for reducing stimulated Brillouin scattering in optical cavities

#94
20140152994
2014-06-05

Optical frequency comb stimulated Brillouin scattering gyroscope

#95
20140049780
2014-02-20

Low noise resonator fiber optic gyro

#96
20140044142
2014-02-13

Laser with transmission and reflection mode feedback control

#97
20130321817
2013-12-05

All-fiber interferometric fiber optic gyroscope having a minimum reciprocal configuration

#98
20130271770
2013-10-17

Resonator fiber optic gyroscope utilizing laser frequency combs

#99
20130107271
2013-05-02

System and method for reducing errors in a resonator fiber optic gyroscope

#100
20130070252
2013-03-21

SYSTEMS AND METHODS FOR A HOLLOW CORE RESONANT FILTER

#101
20130057870
2013-03-07

Systems and methods for resonator fiber optic gyroscope intensity modulation control

#102
20120307253
2012-12-06

Optical filtering for resonator-fiber-optic gyroscopes

#103
20120307251
2012-12-06

High performance hollow-core optical-fiber filter for optical rotation sensing

#104
20120069346
2012-03-22

Method of using a unidirectional crow gyroscope

#105
20120057167
2012-03-08

RFOG with optical heterodyning for optical signal discrimination

#106
20120050745
2012-03-01

Resonator fiber optic gyroscopes with reduced rotation rate instability from back reflections

#107
20120013912
2012-01-19

All-fiber interferometric fiber optic gyroscope having a minimum reciprocal configuration

#108
20110292396
2011-12-01

System and method for enhancing signal-to-noise ratio of a resonator fiber optic gyroscope

#109
20110181886
2011-07-28

Signal conditioning to provide optimum gain and noise reduction for resonator fiber optic gyroscopes

#110
20110141477
2011-06-16

Light-phase-noise error reducer

#111
20100309475
2010-12-09

Method and amplifying stage for suppressing modulation distortion rate sensing errors in a resonator fiber optic gyroscope

#112
20100290057
2010-11-18

Compact resonator fiber optic gyroscopes

#113
20100253948
2010-10-07

Systems and methods for resonator fiber optic gyroscope intensity modulation control

#114
20100225923
2010-09-09

Residual intensity modulation (RIM) control loop in a resonator fiber-optic gyroscope (RFOG)

#115
20100128277
2010-05-27

RFOG with reduced polarization mode induced bias error

#116
20100002283
2010-01-07

Kerr effect compensated optical ring resonator

#117
20100002239
2010-01-07

RFOG modulation error correction

#118
20090296098
2009-12-03

Reliable low loss hollow core fiber resonator

#119
20090244544
2009-10-01

Unidirectional crow gyroscope

#120
20090175578
2009-07-09

System and method for fiber based resonator coupling

#121
20090046294
2009-02-19

Sagnac sensor with nested waveguides

#122
20080137091
2008-06-12

Hollow core fiber optical gyro

#123
20080079947
2008-04-03

Optical resonator gyro and method for reducing resonance asymmetry errors

#124
20070263224
2007-11-15

Integrated optical rotation sensor and method for sensing rotation rate

#125
20070242276
2007-10-18

Optical resonator gyro with integrated external cavity beam generator

#126
20070133003
2007-06-14

System and method for stabilizing light sources in resonator gyro

#127
20070097375
2007-05-03

Transmission mode RFOG and method for detecting rotation with RFOG

#128
20070086015
2007-04-19

Polarizing cavity for RFOG and method for sensing rotation rate of resonator

#129
17071212
2022-01-25

System and method for generating broadband spectrum by phase modulation of multiple wavelengths

#130
16745671
2023-11-21

Implementation of a dual Fabry-Perot photonic pressure sensor

#131
16659424
2020-08-04

System architecture for integrated photonics optical gyroscopes

#132
14739393
2016-10-04

Systems and methods for fiber optic gyroscopes utilizing reference ring resonators

#133
14690148
2016-07-12

Three-laser resonator fiber optic gyroscope with enhanced frequency reference cavity

#134
14574695
2015-12-15

Ring laser gyroscope on a chip with doppler-broadened gain medium

#135
14272842
2015-09-01

Resonator fiber optic gyroscope without frequency overlap in sideband-heterodyne-detection modulations