ClassID:

171136

G01P21/02 - CPC Classification

Classification description:

of speedometers

Sub-classes:
Recent Application in this class:
#1
20260063664
2026-03-05

INSPECTION METHOD

#2
20250389750
2025-12-25

VEHICLE SPEED ESTIMATION DEVICE, POSITION CALCULATION DEVICE, AND STORAGE MEDIUM STORING PROGRAM

#3
20250383368
2025-12-18

Method for Correcting Measurement Signals

#4
20250293702
2025-09-18

SPEED SIGNAL CONVERTER WITH REVERSE POLARITY DETECTION AND CORRECTION

#5
20250076336
2025-03-06

Sensor Device

#6
20250001985
2025-01-02

METHOD OF WHEEL SPEED SENSOR RATIONALIZATION WITH A LONGITUDINAL ACCELEROMETER

#7
20240417109
2024-12-19

ACCOUNTING FOR INERTIAL MEASUREMENT UNIT BIAS

#8
20240393362
2024-11-28

INSPECTION METHOD OF INSPECTING MOVING OBJECT

#9
20240319226
2024-09-26

METHOD AND DEVICE FOR DETERMINING A ROTATIONAL FREQUENCY OF A WHEEL

#10
20240102388
2024-03-28

Valve position control

#11
20240077515
2024-03-07

SPEED MEASUREMENT DEVICE

#12
20240062393
2024-02-22

Measuring vehicle speeds with an uncalibrated camera

#13
20230400477
2023-12-14

HIGH RESOLUTION SENSING PROTOCOL

#14
20230349963
2023-11-02

System-level malfunction indicator in autonomous vehicles

#15
20230182790
2023-06-15

Method for calculating an instantaneous velocity vector of a rail vehicle and corresponding system

#16
20230152127
2023-05-18

Method for diagnosing a speed/position sensor

#17
20220404386
2022-12-22

Health-monitoring system for a device determining rotation frequency of a shaft

#18
20220402507
2022-12-22

Direction detection using a wheel speed sensor and exciter ring

#19
20220358796
2022-11-10

METHOD FOR MONITORING THE TRAVEL SPEED OF A BICYCLE

#20
20220205787
2022-06-30

Method for monitoring the performance of inertial measurement units

#21
20220178964
2022-06-09

Methods and systems for determining vehicle speed and barometric pressure

#22
20220154602
2022-05-19

VALVE POSITION CONTROL

#23
20220107338
2022-04-07

Robust signal path plausibility check for functional safety of a sensor

#24
20220101538
2022-03-31

Measuring vehicle speeds with an uncalibrated camera

#25
20220048481
2022-02-17

Method and device for determining a rotational frequency of a wheel

#26
20210348953
2021-11-11

Sensor system verifying data related to a movement of an object

#27
20210293848
2021-09-23

Parameter estimating method based on correction of independence of error term, computer program for implementing the same method, and system configured to perform the same method

#28
20210199705
2021-07-01

System-level malfunction indicator in autonomous vehicles

#29
20210057917
2021-02-25

Breaker auto-synchronizer

#30
20210055323
2021-02-25

Sensor assembly for a vehicle

#31
20210054790
2021-02-25

Turbine speed detection and use

#32
20210054789
2021-02-25

Turbine control system

#33
20210054765
2021-02-25

Valve position control

#34
20210054741
2021-02-25

Turbine diagnostics

#35
20200379061
2020-12-03

Systems and methods for magnetic field sensors with self-test

#36
20200254986
2020-08-13

Method for operating a rotational speed sensor in a vehicle, and sensor assembly

#37
20190353677
2019-11-21

Magnetic field sensors and output signal formats for a magnetic field sensor

#38
20190339302
2019-11-07

Method and apparatus for measuring the speed of an electronic device

#39
20190179979
2019-06-13

Simulated Sensor Testing

#40
20190154426
2019-05-23

System and method for measuring motor bearings consumption of railway vehicles

#41
20190146000
2019-05-16

Methods and apparatus for prognostic health monitoring of a turbine engine

#42
20190112070
2019-04-18

Method of determining aircraft ground speed

#43
20190094284
2019-03-28

Physical quantity measurement device, electronic apparatus, and vehicle

#44
20190064207
2019-02-28

Method and device for testing a detection sensor for a motor vehicle

#45
20190064197
2019-02-28

Magnetic field sensor systems and method of determining operability of same

#46
20190056239
2019-02-21

Method for calibration of gyro sensor using tilt sensor

#47
20190025429
2019-01-24

System for determining speed and related mapping information for a speed detector

#48
20190025336
2019-01-24

Absolute speed detector

#49
20180356442
2018-12-13

Electrical equipment for connection to a tachometer for measuring a speed of rotation of a wheel of an aircraft landing gear

#50
20180313868
2018-11-01

Calibrating sensor unit orientation for use in a vehicle monitoring system

#51
20180306836
2018-10-25

GNSS statistically derived ABS speedometer calibration

#52
20180306833
2018-10-25

Method for determining a corrected rotational speed signal, and electric motor arrangement

#53
20180259546
2018-09-13

Device for determining the angular speed of a bicycle wheel and the pedaling cadence applied to the pedals of said bicycle

#54
20180231392
2018-08-16

Diagnostic apparatus and diagnostic method for rotational angle sensor, and control apparatus for actuator

#55
20180209820
2018-07-26

Sensor controller, sensor signal receiver, incremental magnetic speed sensor module, method for a sensor controller, method for a sensor signal receiver and computer program

#56
20180180442
2018-06-28

Correlation coefficient correction method, exercise analysis method, correlation coefficient correction apparatus, and program

#57
20180172718
2018-06-21

OPTICAL STANDOFF SENSOR

#58
20180128852
2018-05-10

Electronic arrangement in a motor vehicle

#59
20180088184
2018-03-29

Systems and methods for magnetic field sensors with self-test

#60
20180080404
2018-03-22

Methods and system for diagnosing an engine component based on an engine speed profile during an engine shutdown event

#61
20180059135
2018-03-01

System and method for generation of a tachometer signal and reduction of jitter

#62
20180038720
2018-02-08

Pitot-static anemometric test adapter

#63
20180038414
2018-02-08

Bearing with wireless sensor

#64
20180011123
2018-01-11

Laser diode based multiple-beam laser spot imaging system for characterization of vehicle dynamics

#65
20170356967
2017-12-14

Magnetic field sensor having error correction

#66
20170356966
2017-12-14

Magnetic field sensor having alignment error correction

#67
20170350919
2017-12-07

Tachometer signal jitter reduction system and method

#68
20170343575
2017-11-30

Method for assessing a rotational speed of an engine

#69
20170322054
2017-11-09

Intelligent Sensor System

#70
20170310250
2017-10-26

Disconnection detection apparatus of sinusoidal wave signal

#71
20170299469
2017-10-19

Systems and methods for detecting engine vibration

#72
20170254833
2017-09-07

Angular velocity detection circuit, angular velocity detection device, electronic apparatus, and moving object

#73
20170254677
2017-09-07

Adjusting emulated encoder frequencies

#74
20170205441
2017-07-20

Error reporting at a pulse level lying below the power supply level

#75
20170122769
2017-05-04

Mobile device control leveraging user kinematics

#76
20170075437
2017-03-16

Self-calibrating indicating device

#77
20170074900
2017-03-16

Angular speed sensor correction device and angular speed sensor correction method for correcting outputs from angular speed sensor

#78
20170059603
2017-03-02

Method for measuring the rotation speed of a vehicle wheel

#79
20170052208
2017-02-23

Circuit and method to detect failure of speed estimation/speed measurement of a multi-phase AC motor

#80
20170047877
2017-02-16

Motor control method and system

#81
20170038409
2017-02-09

Modular portable speedometer calibration stand

#82
20170004663
2017-01-05

Failure determination system for vehicle speed detection device

#83
20160325844
2016-11-10

Method of estimation of the speed of an aircraft relative to the surrounding air, and associated system

#84
20160291052
2016-10-06

Method for reducing error in rotor speed measurements

#85
20160274142
2016-09-22

Acceleration compensation of load sensors

#86
20160231141
2016-08-11

Method for monitoring a transmission link

#87
20160224034
2016-08-04

Method for controlling rotating apparatus and electronic device thereof

#88
20160218711
2016-07-28

Sensor signal transmission

#89
20160216291
2016-07-28

Method and apparatus for supporting accelerometer based controls in a mobile environment

#90
20160214583
2016-07-28

Error transmission in two-level rotational speed sensor

#91
20160169936
2016-06-16

SPEEDOMETER CORRECTION DEVICE

#92
20160123780
2016-05-05

Methods and apparatus for error detection in a magnetic field sensor

#93
20160116497
2016-04-28

Sensor system and alerting unit for sensing and verifying data related to a movement of an object

#94
20160109531
2016-04-21

Offset compensation method and system of hall sensor in motor

#95
20160109476
2016-04-21

Method for determining at least one speed in a rail vehicle

#96
20160103150
2016-04-14

Method and apparatus for measuring the speed of an electronic device

#97
20160025820
2016-01-28

Systems and methods for magnetic field sensors with self-test

#98
20150343573
2015-12-03

Disassembly method for a gas turbine

#99
20150328770
2015-11-19

Method of controlling robot and robot

#100
20150308859
2015-10-29

Method for monitoring a rotation of a compressor wheel

#101
20150292348
2015-10-15

Device and method for protecting an aircraft turbomachine computer against speed measurement errors

#102
20150268263
2015-09-24

Speed sensor device, speed sensor method, electronic control unit and control method

#103
20150247746
2015-09-03

Method for calibrating a rotary encoder

#104
20150241459
2015-08-27

Electronic apparatus and program

#105
20150177274
2015-06-25

Pretreatment apparatus and method of wheel speed

#106
20150092185
2015-04-02

Method for estimating the rotational speed of a tool mounted on a rotating spindle of a machine tool and such a machine tool

#107
20140345358
2014-11-27

Acceleration compensation of load sensors

#108
20140236521
2014-08-21

Methods for calibrating a fugitive emission rate measurement

#109
20140232380
2014-08-21

Motion sensor, method, and computer-readable storage medium providing a motion sensor with a vibration processor to set a state of a flag in response to selected ones of a plurality of test results being indicative of a passing conditions

#110
20140222361
2014-08-07

Methods, devices and systems for determining the zero rate output of a sensor

#111
20140214352
2014-07-31

Methods and systems for conditioning signals from a speed sensor

#112
20140195185
2014-07-10

Angular velocity estimation using a magnetometer and accelerometer

#113
20140188352
2014-07-03

System and method for monitoring an estimated wheel speed of a vehicle using a transmission output shaft sensor

#114
20140156221
2014-06-05

Angular position encoder for a rotating shaft

#115
20140149061
2014-05-29

INERTIA SENSOR AND METHOD FOR REDUCING OPERATION ERROR OF THE SAME

#116
20140137630
2014-05-22

Electronic device and input method

#117
20140062370
2014-03-06

Apparatus and method for controlling speed of motor

#118
20140020458
2014-01-23

Method and apparatus for redundant detection of a rotational direction

#119
20130346009
2013-12-26

Intelligent sensor system

#120
20130325220
2013-12-05

Procedure and device for the determination of airspeeds of a rotorcraft in stationary flight and/or at low speeds

#121
20130304410
2013-11-14

SERVER AND METHOD FOR TESTING SENSORS OF THE SERVER

#122
20130289933
2013-10-31

DETECTING SHAFT ROTATION WITH SHORT OR MISSING TEETH

#123
20130271053
2013-10-17

Method and apparatus for checking a speed system of a motor-driven apparatus

#124
20130268172
2013-10-10

Method and system for identifying an erroneous speed of a vehicle

#125
20130263641
2013-10-10

Self test of MEMS gyroscope with ASICs integrated capacitors

#126
20130249535
2013-09-26

Sensor arrangement to determine rotational speeds

#127
20130226490
2013-08-29

Motion sensor, method, and computer-readable storage medium providing a motion sensor generating a signal having signal states with a reduced amount of state chatter

#128
20130190926
2013-07-25

Method of controlling robot and robot

#129
20130167657
2013-07-04

Fan testing apparatus and testing method

#130
20130013241
2013-01-10

Method for calibration of dynamic motion sensors

#131
20130006575
2013-01-03

FAN ROTATION SPEED TEST DEVICE

#132
20120293115
2012-11-22

Self-powered wireless induction sensor

#133
20120240667
2012-09-27

Method for detecting the failure of a frequency sensor, and circuit for implementing said method

#134
20120215428
2012-08-23

Vehicle speed signal falsification detection apparatus, vehicle speed limiting apparatus, vehicle speed signal falsification detection method, and vehicle speed limiting method

#135
20120203489
2012-08-09

Method and apparatus for supporting accelerometer based controls in a mobile environment

#136
20120191406
2012-07-26

ANGULAR SPEED DETECTION APPARATUS AND METHOD FOR DETECTING ANGULAR SPEED ERROR

#137
20120127180
2012-05-24

Method to calibrate digital speedometer display to meter speedometer display

#138
20120092000
2012-04-19

Arrangement for intrinsically safe detection of a wheel rotational speed

#139
20120044477
2012-02-23

Laser diode based multiple-beam laser spot imaging system for characterization of vehicle dynamics

#140
20120042727
2012-02-23

Wind turbine and method of determining at least one rotation parameter of a wind turbine rotor

#141
20120016615
2012-01-19

Method for adjusting a self mixing laser sensor system for measuring the velocity of a vehicle

#142
20110298447
2011-12-08

Motion sensor, method, and computer-readable storage medium providing a motion sensor with a magnetic field sensing element for generating a magnetic field signal and a state processor to identify a plurality of states corresponding to ranges of values of the magnetic field signal having a reduced amount of state chatter

#143
20110251805
2011-10-13

Sensor Assembly, Tachograph Assembly and Method for Recognition of a Manipulation

#144
20110187350
2011-08-04

Magnetic-field sensor including a plurality of magnetoresistive sensor elements and method of calibrating a magnetic-field sensor

#145
20110144940
2011-06-16

Sensor and method for the detection of local displacements and rotations

#146
20110072880
2011-03-31

Method and apparatus for supporting accelerometer based controls in a mobile environment

#147
20110066376
2011-03-17

Velocity calculating device, velocity calculating method, and navigation device

#148
20110036156
2011-02-17

Method for adapting mechanical tolerances of a timing wheel

#149
20110000275
2011-01-06

System and method for testing of transducers

#150
20100324799
2010-12-23

Turbine engine speed and vibration sensing system

#151
20100315653
2010-12-16

OPTICAL SENSOR FOR POSITIONING TASKS

#152
20100277224
2010-11-04

Active sensor with operating mode changeover

#153
20100262396
2010-10-14

Method for calibrating a wheel speed detection system

#154
20100223025
2010-09-02

Method and device for balancing production-related inaccuracies of the magnetic wheel of an electromotive drive of a vehicle

#155
20100191413
2010-07-29

Speed detection for a tachograph system

#156
20100182762
2010-07-22

Sensor unit

#157
20100180664
2010-07-22

Rotary transducer with monitoring of the bearing wear and method therefor

#158
20100141237
2010-06-10

Active Sensor, Use Thereof and Method for Compensating Amplitude Fluctuations in the Output Current Signal of an Active Sensor

#159
20100135800
2010-06-03

Systems and methods for determining the angular position of a wind turbine rotor

#160
20100131231
2010-05-27

IMPROVEMENTS RELATING TO VEHICLE SENSORS

#161
20100125430
2010-05-20

Analog angle sensor accuracy correction program correction method, recording medium, and servo driver

#162
20100060264
2010-03-11

Self-testing sensor

#163
20100057396
2010-03-04

Method for analyzing output from a rotary sensor

#164
20100050731
2010-03-04

Angle measurement system

#165
20090326733
2009-12-31

METHOD AND ARRANGEMENT FOR DETERMINING AN UPDATED WHEEL CIRCUMFERENCE OF AT LEAST ONE WHEEL DISPOSED ON A VEHICLE

#166
20090306851
2009-12-10

Minimizing wheel speed and acceleration errors

#167
20090271145
2009-10-29

Determining a center of rotation for a component in a computer system

#168
20090205401
2009-08-20

Method and apparatus for calibrating wheel speeds

#169
20090190120
2009-07-30

Safety system for contactless measurement of paths and/or speeds

#170
20090182521
2009-07-16

Reference sensor method for calibration of dynamic motion sensors

#171
20090177434
2009-07-09

Method and apparatus for monitoring the rotational speed of the shaft of a gas turbine

#172
20090177363
2009-07-09

Method and apparatus for monitoring gas turbine blades

#173
20090091344
2009-04-09

Magnetic sensor integrated circuit with test conductor

#174
20090066465
2009-03-12

MAGNETIC CORE FOR TESTING MAGNETIC SENSORS

#175
20090047130
2009-02-19

Wind turbine and method for determining at least one rotation parameter of a wind turbine rotor

#176
20090030638
2009-01-29

Self-calibration method and apparatus for on-axis rotary encoders

#177
20090018791
2009-01-15

Calibration of the fundamental and harmonic once-around velocity variations of encoded wheels

#178
20090001965
2009-01-01

Magnetic-field sensor and method of calibrating a magnetic-field sensor

#179
20080315909
2008-12-25

Method of detecting a malfunction of an encoder for a vehicle drive system

#180
20080252436
2008-10-16

Self-diagnostic angular speed sensor for vehicle

#181
20080197991
2008-08-21

Method and system for demonstrating discrepancies in speedometers in vehicles

#182
20080148806
2008-06-26

Active wheel speed sensor tester

#183
20080110283
2008-05-15

Method and system for accuracy of speed and acceleration measurements on rotating machinery with a speed wheel

#184
20080053189
2008-03-06

Active wheel speed sensor tester

#185
20070050107
2007-03-01

Apparatus for detecting anomaly of wheel speed sensors

#186
20070021897
2007-01-25

Speedometer and motor vehicle arrangement

#187
20060253236
2006-11-09

Method of detecting vehicle speed sensor failure

#188
20060179915
2006-08-17

Apparatus and method for correcting inertial sensor and recording medium recording the method

#189
20060080006
2006-04-13

Method and device for processing measurement signals from a movement sensor on board a motor vehicle

#190
20060032311
2006-02-16

Angular velocity sensor

#191
20060025921
2006-02-02

Self-tuning apparatus of vehicle speed pulse coefficient and method thereof

#192
20060021450
2006-02-02

Encoder failure detection

#193
20050262921
2005-12-01

Tone wheel sensor tester

#194
20050253541
2005-11-17

Method for measuring the rotational speed of an EC motor

#195
20050238336
2005-10-27

Method and apparatus to achieve accurate fan tachometer with programmable look-up table

#196
20050184861
2005-08-25

Programmable transmission sensor

#197
20050109134
2005-05-26

Zero speed indicating devices and processes for testing same

#198
20050103131
2005-05-19

Zero speed indicating devices and processes for testing same

#199
20050103130
2005-05-19

Zero speed indicating devices and processes for testing same

#200
20050075827
2005-04-07

Vehicle wheel speed calculation device and anti-skid braking control apparatus provided therewith

#201
20050073399
2005-04-07

Speedometer control system and speedometer control method

#202
20050066749
2005-03-31

Rotation detecting device

#203
20050012643
2005-01-20

Tone wheel testing apparatus and its test method

#204
16397467
2020-06-02

MEMS inertial navigation unit chip

#205
15583854
2018-05-01

Calibrating sensor unit orientation for use in a vehicle monitoring system

#206
15370737
2021-01-05

Velocity determination system and method

#207
15293188
2017-10-03

Tachometer signal jitter reduction system and method