ClassID:

170980

G01P3/486 - CPC Classification

Classification description:

Measuring linear or angular speed; Measuring differences of linear or angular speeds; Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors

Recent Application in this class:
#1
20260092942
2026-04-02

ROTATING BODY WITH MARKING FOR ROTATION MEASUREMENT

#2
20250093378
2025-03-20

OPTICAL ENCODER WITH COMPARATOR HYSTERESIS CHANGED WITH ROTATING SPEED AND OPERATING METHOD THEREOF

#3
20240103032
2024-03-28

Optical encoder with comparator hysteresis changed with rotating speed and operating method thereof

#4
20220341961
2022-10-27

Optical encoder with changeable comparator hysteresis and operating method thereof

#5
20200225258
2020-07-16

METHOD AND SYSTEM FOR GENERATING A SIGNAL INDICATING THE ROTATIONAL SPEED OF A DRUM

#6
20200108891
2020-04-09

Rotation calculating system and rotation calculating method

#7
20190247873
2019-08-15

ROTARY ATOMIZER

#8
20190178905
2019-06-13

Device for measuring the speeds of rotation of at least two wheels of an aircraft undercarriage

#9
20190170541
2019-06-06

Optical encoder for detecting crown movement

#10
20190154721
2019-05-23

Wheel hub bearing provided with a device for measuring the rotational speed

#11
20190146023
2019-05-16

Methods and systems for analyzing cable return loss

#12
20190086439
2019-03-21

Dynamic testing device suitable for drilling tool attitude measurement module

#13
20180372114
2018-12-27

Fan, and rotational speed detection method

#14
20180338192
2018-11-22

Generating and/or encoding rotational data for a mechanical element over a digital network

#15
20180244501
2018-08-30

Passenger-transporting system with a device for determining the operating state

#16
20180198389
2018-07-12

Methods and apparatus for multi-mode motor speed calculation using digital hall effect sensors

#17
20180167100
2018-06-14

Drop countermeasures for electronic device

#18
20180073387
2018-03-15

Device and method for measuring a rotational movement, in particular a rotational direction, and for detecting a shaft break

#19
20180045748
2018-02-15

Sensor device for a rolling bearing and rolling bearing arrangement comprising such a sensor device

#20
20170317707
2017-11-02

Drop countermeasures for electronic device

#21
20170242368
2017-08-24

Rotation detection device, toner conveyance device, and image forming apparatus including the same

#22
20170172130
2017-06-22

Spool brake device for dual-bearing reel

#23
20170113698
2017-04-27

Multi-function speed sensor

#24
20160344440
2016-11-24

Drop countermeasures for electronic device

#25
20160258990
2016-09-08

Counter enhancements for improved performance and ease-of-use

#26
20160224034
2016-08-04

Method for controlling rotating apparatus and electronic device thereof

#27
20160186804
2016-06-30

Braking system

#28
20160018432
2016-01-21

Handheld Tachometer

#29
20150219474
2015-08-06

Digital period divider

#30
20150204690
2015-07-23

Physical quantity sensor

#31
20150190837
2015-07-09

Metering device for a fluid

#32
20150114788
2015-04-30

Component part, device and method for determining an axial position of a component part and for determining a rotary speed of the component part

#33
20140253284
2014-09-11

Drop countermeasures for electronic device

#34
20140176127
2014-06-26

Apparatus and method for writing a pattern in a substrate

#35
20140116132
2014-05-01

Device for measuring angle and angular velocity or distance and speed

#36
20130141711
2013-06-06

Non-contact, optical sensor for synchronizing to free rotating sample platens with asymmetry

#37
20120261978
2012-10-18

Coupler for smart electrical wheel for electrical bikes

#38
20120105053
2012-05-03

Fan speed testing system

#39
20120072152
2012-03-22

Systems and Methods for Monitoring Moving Surfaces

#40
20120069323
2012-03-22

Displacement measuring apparatus

#41
20120016629
2012-01-19

Measuring apparatus and measuring system

#42
20110279366
2011-11-17

Method and apparatus for ranging finding, orienting, and/or positioning of single and/or multiple devices

#43
20110278909
2011-11-17

Smart electrical wheel for electrical bikes

#44
20110228261
2011-09-22

Method of determining the contact angle of a ball bearing

#45
20110179865
2011-07-28

Fan speed testing system and method

#46
20110116908
2011-05-19

GAS TURBINE ENGINE WITH AN ARRANGEMENT FOR MEASURING THE SHAFT ROTATION SPEED

#47
20110057822
2011-03-10

Pulse generating device, rotator module, rotational speed control device, and image forming apparatus

#48
20110032543
2011-02-10

Velocity calculation device, image forming apparatus, and computer readable storage medium

#49
20110001443
2011-01-06

System for measuring fan rotational speed

#50
20100329760
2010-12-30

Speed detection device, image forming device, and computer readable storage medium storing speed detection program

#51
20100211343
2010-08-19

Systems and methods for monitoring moving surfaces

#52
20100185394
2010-07-22

Device for measuring a fluid flow velocity and direction

#53
20100181992
2010-07-22

DEVICE FOR MEASURING ANGULAR VELOCITY OF TIRE

#54
20100038527
2010-02-18

Rotary Push On Encoder

#55
20090284760
2009-11-19

Position detection sensor

#56
20090236508
2009-09-24

Incremental encoder

#57
20090141263
2009-06-04

Motion rate sensor

#58
20090040504
2009-02-12

Apparatus for detecting speed of movable body and drive stage using the same

#59
20080303468
2008-12-11

Correction method for microprocessor-controlled digital regulation

#60
20080216863
2008-09-11

METHODS AND APPARATUS FOR MONITORING THE ROTATION OF A SUBSTRATE DURING CLEANING

#61
20080215270
2008-09-04

Systems and methods for monitoring moving surfaces using light signals

#62
20080192691
2008-08-14

Fast handover method, apparatus, and medium

#63
20080084202
2008-04-10

VEHICULAR ROTATION SPEED SENSING APPARATUS

#64
20070139036
2007-06-21

Signal processing circuit of rotation detecting device

#65
20060277702
2006-12-14

Post-CMP cleaning system

#66
20060273080
2006-12-07

Conveyor speed monitor

#67
20060268374
2006-11-30

Position control device, and scanner and image forming apparatus having the same

#68
20060257061
2006-11-16

Rolling bearing

#69
20060208173
2006-09-21

Rotary encoder

#70
20060169932
2006-08-03

Remote sensing apparatus and a frequency analysis method of the remote sensing apparatus

#71
20060151478
2006-07-13

Conveyor speed monitor

#72
20060119835
2006-06-08

System and method for the measurement of the velocity and acceleration of objects

#73
20060110085
2006-05-25

Bearing with rotation sensor and method of incorporating the same to rotating object

#74
20060082460
2006-04-20

Method and apparatus for determining motor velocity using edge mode hysteresis with a finite impulse response average filter

#75
20060044552
2006-03-02

A device for measuring motion along surfaces of arbitrary length and of arbitrary curvature.

#76
20060035753
2006-02-16

Device for determining the position of a sliding seat

#77
20050268887
2005-12-08

Engine control system and method

#78
20050252293
2005-11-17

Magnetic MEMS sensor device

#79
20050168187
2005-08-04

Rotating machine having rotation sensors

#80
20050147152
2005-07-07

Instrument for non-contact infrared temperature measurement combined with tachometer functions

#81
20050064971
2005-03-24

Movable-body linear drive assembly

#82
20050052729
2005-03-10

Optical encoder

#83
14758769
2016-09-06

Rotation-rate detector for spinning top