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Class Information
Number: 324/174
Name: Electricity: measuring and testing > Electrical speed measuring > Including speed-related frequency generator > Including magnetic detector > Permanent magnet type
Description: Subject matter in which the means for producing a magnetic field includes a permanent magnet.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
8686720 Motion sensor, method, and computer-readable storage medium providing a motion sensor with a validated output signal from the motion sensor Apr. 1, 2014
8680847 Semiconductor chip and method for generating pulse edges, assigned synchronously to the movement of a mechanical part Mar. 25, 2014
8664941 Magnetic sensor with low electric offset Mar. 4, 2014
8664946 Sensor packages including a lead frame and moulding body and methods of manufacturing Mar. 4, 2014
8598867 Circuits and methods for generating a threshold signal used in a motion detector Dec. 3, 2013
8575920 Magneto-resistive magnetic field sensor Nov. 5, 2013
8564450 Monitor apparatus and method for detecting movement behavior of object in cylinder Oct. 22, 2013
8558542 Magnetic detector and input device using the same Oct. 15, 2013
8531182 Control system and method for providing position measurement with redundancy for safety checking Sep. 10, 2013
8521469 System and method for determining an orientation of a device Aug. 27, 2013
8461828 Wheel speed detecting device Jun. 11, 2013
8450996 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 iden May. 28, 2013
8390276 Target magnet assembly for a sensor used with a steering gear Mar. 5, 2013
8384377 Self-powered magnetic tachometer for supplying a signal representative of rotational rate and absolute position Feb. 26, 2013
8384376 Magnetic angle sensor Feb. 26, 2013
8378673 Derailleur cable detecting assembly for an electric-auxiliary bicycle Feb. 19, 2013
8368388 Arrangement for wheel rotational speed detection with increased intrinsic safety Feb. 5, 2013
8303186 Wheel bearing apparatus incorporated with a wheel speed detecting apparatus Nov. 6, 2012
8283913 Magnetic array sensor circuit having offset variation reduction circuit Oct. 9, 2012
8258782 Angle detecting apparatus and angle detecting method Sep. 4, 2012
8253412 Rotation detector for a wheeled vehicle Aug. 28, 2012
8203334 Magnetically spirally encoded shaft for measuring rotational angel, rotational speed and torque Jun. 19, 2012
8193748 Integrated brushless DC motor and controller Jun. 5, 2012
8174257 Wheel bearing device with rotation detector May. 8, 2012
8169214 Angular position sensor May. 1, 2012
8148975 Pickup coil for sensing rotary speed of engine, the coil including adjustable weight member Apr. 3, 2012
8146358 Bearing health monitor Apr. 3, 2012
8120351 Magnet sensor arrangement for sensing the movement of element moving in linear or rotary fashion Feb. 21, 2012
8106648 Non-contact rotational angle detecting sensor Jan. 31, 2012
8102172 Position detector including magnetoresistive elements Jan. 24, 2012
8089271 Sense magnet assembly including multiple annular portions with alternating magnetic poles Jan. 3, 2012
8054062 Method and apparatus for amplified variable reluctance speed sensor Nov. 8, 2011
8054063 Motorcycle wheel speed transmission mechanism for speedmeter Nov. 8, 2011
8054064 Sensor holder with a wheel bearing apparatus incorporated with a wheel speed detecting apparatus including an annular fitting member in the sensor holder and a seal positioned between the annu Nov. 8, 2011
8035498 Wireless monitoring system with a self-powered transmitter Oct. 11, 2011
8015708 Method and apparatus for manufacturing tonewheel for vehicles Sep. 13, 2011
7982455 Rolling bearing with rotational speed sensor Jul. 19, 2011
7966157 Signal processing circuit for rotation detector and method for detecting rotation of object Jun. 21, 2011
7960967 Sealing ring with a pulsar ring for a rotary encoder Jun. 14, 2011
7948232 Position measuring apparatus May. 24, 2011
7948231 Rotation detecting apparatus having magnetic sensor array and bearing provided with same May. 24, 2011
7928726 Rotation sensor unit Apr. 19, 2011
7915886 Magnetic speed, direction, and/or movement extent sensor Mar. 29, 2011
7911203 Sensor having an analog processing module to generate a linear position output Mar. 22, 2011
7893578 Electric motor with discrete circuit board and sensor case Feb. 22, 2011
7891078 Sensor-based feedback method for improved assembly of vacuum electronic devices Feb. 22, 2011
7893689 Displacement measuring device Feb. 22, 2011
7884600 Rotation angle detector and bearing with rotation angle detector Feb. 8, 2011
7872554 Sealing device and rotation detector Jan. 18, 2011
7834616 Magnetic speed, direction, and/or movement extent sensor Nov. 16, 2010

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