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Magnetic encoder for producing an index signal 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01B-007/14
  • G01B-007/30
  • G01D-052/45
  • G01D-005/12
출원번호 US-0837231 (1997-04-10)
발명자 / 주소
  • La Croix Mark E.
  • Santos A. John
  • Lyle Stephen J.
출원인 / 주소
  • The Torrington Company
대리인 / 주소
    Bigler
인용정보 피인용 횟수 : 27  인용 특허 : 18

초록

Magnetic poles are regularly spaced along a path to form a magnetic track. Some of the magnetic poles are separated by regular pole junctions aligned uniformly with respect to the path of the magnetic track. At least two of the magnetic poles are separated by a skewed irregular pole junction aligned

대표청구항

[ Having described the invention, what is claimed is:] [1.] A magnetic encoder comprising:a series of magnetic poles regularly spaced along a path to form a magnetic track, some of the magnetic poles being separated by regular pole junctions aligned uniformly with respect to the path of the magnetic

이 특허에 인용된 특허 (18)

  1. Cook ; II James C. (Lincoln Park MI), Apparatus for generating electrically distinguishable bipolar signals using a magnetic sensor and an oval wheel with tee.
  2. Wu Mien T. (Madison WI), Asymmetrical magnetic position detector.
  3. Leiderer Harald (Woerth DEX), Contactless speed or position sensor using a differential hall sensor.
  4. Moretti Roberto (Cambiano ITX) Vignotto Angelo (Turin ITX), Device for detecting relative speed of inner and outer rings for an ABS braking system.
  5. Abe Kunihiro (Higashimurayama JPX) Morimoto Yoshihiko (Hachioji JPX), Device for measuring a position of a moving object.
  6. Moscatelli Saverio (Milan ITX), Electronic device for gear selection in an automatic transmission for motor vehicles with hall effect sensors and manual.
  7. Wu M. T. (Madison WI), Geartooth position sensor with two hall effect elements.
  8. Stolfus Joel D. (Freeport IL), Geartooth sensor with a centerline in nonintersecting relation with a center of rotation of a rotatable member.
  9. Ricouard ; Jean-Pierre ; Schorter ; Bruno, Hall effect apparatus for determining the angular position of a rotating part.
  10. Allwine ; Jr. Elmer C. (450 Harvard Ave. No. 9-C Santa Clara CA 95051), Magnetic encoder with composite magnet.
  11. Oudet Claude (Besancon FRX) Prudham Daniel (Thise FRX), Magnetic position and speed sensor with hall probe in an air gap.
  12. Garshelis Ivan J. (176 S. Mountain Rd. Pittsfield MA 01201), Non-contact, magnetic sensor for determining direction of motion and velocity of a movable member.
  13. Carr Ronald E. (Plantation FL) Schneider Matthew L. (Margate FL) Payne Paul E. (Ft. Lauderdale FL), Non-oriented direct coupled gear tooth sensor using a Hall cell.
  14. Sugiyama Takeshi (Himeji JPX), Permanent magnet type dynamoelectric machine rotor.
  15. Tatsuhiko Abe (Saitama JPX), Plural magnet device for magnetically detecting rotation angle of a rotary body.
  16. Riggs William D. (Southington CT) Rosshirt Hermann (Bristol CT), Position detecting apparatus using variable magnetic field intensity.
  17. Wada Jyoji (Yokohama JPX), Position detecting device employing a magnet and back yoke relatively movable with respect to a hall sensor.
  18. Schroeder Thaddeus (Rochester Hills MI) Pawlak Andrzej M. (Troy MI), Three sensor rotational position and displacement detection apparatus with common mode noise rejection.

이 특허를 인용한 특허 (27)

  1. Santos, Alfred John; Pride, Bruce M., Absolute position magnetic encoder with binary and decimal output.
  2. Desbiolles, Pascal; Nicot, Christophe; Friz, Achim, Device for controlling an electronically commutated motor.
  3. Desbiolles, Pascal; Duret, Christophe, Device for controlling an electronically switched motor comprising angularly distributed singularities.
  4. Francis Travostino FR; A. John Santos ; Mark E. LaCroix ; Stephen J. Lyle, Digital sensor of relative position.
  5. Malakondaiah Naidu, Encoder for a permanent magnet sinusoidal brushless motor in an electric power steering system.
  6. Shirai, Masami; Noguchi, Masato; Kenjo, Katsuhiko, Incremental rotary encoder, and a surveying instrument incorporating a magnetic incremental rotary encoder.
  7. Henry, Rassem Ragheb; Mir, Sayeed A., Low cost approach to measuring high resolution rotary position of electric machines.
  8. El Baraka, Khadija; Dubus, Jean-Marc; Rakotovao, Mamy; Mafaraud, Julien, Magnetic device for determination of angular position in a multiphase rotary electrical machine.
  9. Takahashi, Toru; Ueno, Shintarou; Desbiolles, Pascal; Peterschmitt, Cyril, Magnetic encoder.
  10. LaCroix, Mark, Magnetic encoder for producing an index signal.
  11. LaCroix, Mark E., Magnetic sensor having a high resolution track with magnets of varying dimensions and a low resolution track.
  12. Colosky, Mark P.; Collier-Hallman, Steven J.; McCann, Roy; Weilhammer, Phillip; Tallant, II, James Charles, Method and apparatus for calibrating and initializing an electronically commutated motor.
  13. Chen Shaotang ; Boules Nady ; Lequesne Bruno Patrice Bernard, Method and apparatus for robust generation of an index pulse for an electric power steering system.
  14. Ma, Fuwei; Zhang, Dejun; Xie, Minjie; Zhang, Qing, Method and device for pulse encoding, method and device for pulse decoding.
  15. Ma, Fuwei; Zhang, Dejun; Xie, Minjie; Zhang, Qing, Method and device for pulse encoding, method and device for pulse decoding.
  16. Ma, Fuwei; Zhang, Dejun; Xie, Minjie; Zhang, Qing, Method and device for pulse encoding, method and device for pulse decoding.
  17. Santos, Alfred J.; LaCroix, Mark E.; Wang, Lei, Method of determining position on a magnetic track of an encoder.
  18. Shibata,Akira; Otomo,Yoshihito, Method of generating an index signal with reduced parts.
  19. Stolfus, Joel D., Methods and systems for improving the duty cycle output of a vehicle speed sensor circuit.
  20. Shaotang Chen ; David W. Graber, Passive starting of a torque-ripple-free electric power steering system.
  21. Legrand,Bertrand, Position sensor with unbalanced cyclic ratio.
  22. Desbiolles, Pascal; Nicot, Christophe; Friz, Achim, Pulse-controlled electric power-assisted steering system.
  23. Desbiolles, Pascal; Nicot, Christophe; Friz, Achim, Pulse-controlled electronically commutated motor.
  24. Foley,Ian David, Rotation sensing by detection of magnetised regions provided on a body.
  25. Gualtieri, Devlin M.; Benson, Dwayne, Self-powered magnetic tachometer for supplying a signal representative of rotational rate and absolute position.
  26. Santos, Alfred J.; LaCroix, Mark E.; Wang, Lei, Sensor assembly.
  27. Desbiolles,Pascal, System for sensing absolute torque and a module comprising it.
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