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Magnetoresistive transducer with four-lead contact

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G11B-005/39   
미국특허분류(USC) 360/113
출원번호 US-0006307 (1998-01-13)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Kallman
인용정보 피인용 횟수 : 56  인용 특허 : 4
초록
▼

A magnetic head includes a magnetoresistive read transducer which comprises a central active region and two end regions. Bias current leads are connected respectively to end regions for current biasing of the transducer. Signal sensing leads is also are connected respectively to end regions for directing sensed voltage to a signal amplifier. The bias current and the sensed signal assume separate electrical paths. The current crowding effect in the bias current path does not affect the signal sensing path. Thus the transducer can sense signal with improve...

대표
청구항
▼

[ What is claimed is:] [1.] A thin film magnetic head comprising:a magnetoresistive read transducer having first and second contact regions spaced by an active region;first and second electrical leads connected respectively to said first and second contact regions for directing bias current to said transducer; andthird and fourth electrical leads connected respectively to said first and second contact regions for simultaneously detecting magnetic flux representative of recorded signals and directing the detected signal to an output circuit, wherein said ...

이 특허에 인용된 특허 (4)

  1. Gill Hardayal Singh. Disk drive with a thermal asperity reduction circuitry using a magnetoresis sensor. USP1998085793576.
  2. Yuan Samuel W. ; Nepela Daniel A. ; Lederman Marcos M.. Magnetoresistive read transducers with multiple longitudinal stabilization layers. USP1998045739987.
  3. Ewasko Diane C. ; Cates James C. ; Crowell Richard W. ; Dee Richard H.. Method of simultaneously forming MR sensors in a dual element MR head. USP1998075784772.
  4. Gill Hardayal S. (Los Altos CA) Brug James A. (Palo Alto CA). Self-initialization of short magnetoresistive sensors into a single domain state. USP1991065027243.

이 특허를 인용한 특허 피인용횟수: 56

  1. Ramchandran, Amit. Adaptable datapath for a digital processing system. USP2013028380884.
  2. Ramchandran, Amit. Adaptable datapath for a digital processing system. USP2015049015352.
  3. Ramchandran, Amit. Adaptable datapath for a digital processing system. USP2014048706916.
  4. Ramchandran, Amit. Adaptable datapath for a digital processing system. USP2009107606943.
  5. Master, Paul L.; Hogenauer, Eugene; Scheuermann, Walter J.. Adaptive integrated circuitry with heterogeneous and reconfigurable matrices of diverse and adaptive computational units having fixed, application specific computational elements. USP2015109164952.
  6. Master, Paul L.; Hogenauer, Eugene; Scheuermann, Walter J.. Adaptive integrated circuitry with heterogeneous and reconfigurable matrices of diverse and adaptive computational units having fixed, application specific computational elements. USP2013098543795.
  7. Master, Paul L.; Hogenauer, Eugene; Scheuermann, Walter James. Adaptive integrated circuitry with heterogeneous and reconfigurable matrices of diverse and adaptive computational units having fixed, application specific computational elements. USP2013098533431.
  8. Master, Paul L.; Hogenauer, Eugene; Scheuermann, Walter James. Adaptive integrated circuitry with heterogenous and reconfigurable matrices of diverse and adaptive computational units having fixed, application specific computational elements. USP2013098543794.
  9. Master, Paul L.; Hogenauer, Eugene; Scheuermann, Walter James. Adaptive processor for performing an operation with simple and complex units each comprising configurably interconnected heterogeneous elements. USP2013018356161.
  10. Master, Paul L.; Uvacek, Bohumir. Apparatus and method for adaptive multimedia reception and transmission in communication environments. USP2015049002998.
  11. Master, Paul L.; Smith, Stephen J.; Watson, John. Apparatus, method, system and executable module for configuration and operation of adaptive integrated circuitry having fixed, application specific computational elements. USP2016059330058.
  12. Master, Paul L.; Smith, Stephen J.; Watson, John. Apparatus, method, system and executable module for configuration and operation of adaptive integrated circuitry having fixed, application specific computational elements. USP2014118880849.
  13. Master, Paul L.; Smith, Stephen J.; Watson, John. Apparatus, method, system and executable module for configuration and operation of adaptive integrated circuitry having fixed, application specific computational elements. USP2012088250339.
  14. Master, Paul L.; Smith, Stephen J.; Watson, John. Apparatus, system and method for configuration of adaptive integrated circuitry having fixed, application specific computational elements. USP2017039594723.
  15. Master, Paul L.; Smith, Stephen J.; Watson, John. Apparatus, system and method for configuration of adaptive integrated circuitry having heterogeneous computational elements. USP2012078225073.
  16. Li, Min; Liao, Simon; Ju, Kochan. CPP GMR device with inverse GMR material. USP2004016683762.
  17. Barr Ronald A. ; Crue Billy W. ; Zhao Ming. CPP Magnetoresistive device with reduced edge effect and method for making same. USP2001036198609.
  18. Knapp Kenneth E. ; Barr Ronald A.. CPP magnetoresistive device and method for making same. USP2001056233125.
  19. Lin,Charles C.; Li,Min; Liao,Simon. CPP read head for high density and shield noise suppression. USP2007017170720.
  20. Heidari, Ghobad; Chang, Kuor Hsin; Master, Paul L.; Hogenauer, Eugene B.; Scheuermann, Walter James. Communications module, device, and method for implementing a system acquisition function. USP2009117620097.
  21. Master, Paul L.; Watson, John. Configurable hardware based digital imaging apparatus. USP2009107609297.
  22. Scheuermann, W. James; Hogenauer, Eugene B.. Control node for multi-core system. USP20190110185502.
  23. Gurney, Bruce Alvin; Marinero, Ernesto E.; Troup, Andrew Stuart; Williams, David Arfon; Wunderlich, Joerg. Fabrication of mesoscopic lorentz magnetoresistive structures. USP2012028125742.
  24. Scheuermann,Walter James. Hardware implementation of the secure hash standard. USP2009027489779.
  25. Scheuermann, W. James; Hogenauer, Eugene B.. Hardware task manager. USP2017059665397.
  26. Scheuermann, W. James; Hogenauer, Eugene B.. Hardware task manager. USP2012068200799.
  27. Scheuermann, W. James; Hogenauer, Eugene B.. Hardware task manager. USP2010017653710.
  28. Scheuermann, W. James; Hogenauer, Eugene B.. Hardware task manager. USP2014078782196.
  29. Sambhwani, Sharad; Heidari, Ghobad. Low I/O bandwidth method and system for implementing detection and identification of scrambling codes. USP2013058442096.
  30. Sambhwani, Sharad; Heidari, Ghobad. Low I/O bandwidth method and system for implementing detection and identification of scrambling codes. USP2010027668229.
  31. Sambhwani,Sharad; Heidari,Ghobad. Low I/O bandwidth method and system for implementing detection and identification of scrambling codes. USP2009037512173.
  32. Seigler, Michael Allen; Van der Heijden, Petrus Antonius; Parker, Gregory John; Crue, Billy Wayne. Low resistance lead structure for a low resistance magnetic read head. USP2003116654209.
  33. Seigler, Michael Allen; Trindade, Isabel Goncalves; Van der Heijden, Petrus Antonius; Minor, Michael Kevin; Covington, Mark William; van de Veerdonk, Rene' Johannes Marinus; Batra, Sharat; Rottmayer,. Magnetic read head wherein the shields are used as electrical leads and have a minimized anisotropic magneto-resistance effect. USP2004106807032.
  34. Hasegawa, Naoya; Hayakawa, Yasuo. Magnetic sensing element permitting decrease in effective element size while maintaining large optical element size. USP2004036707649.
  35. Hayashi, Kazuhiko. Magnetoresistance element, manufacturing method thereof, magnetic field detection system and magnetic recording system. USP2003046542340.
  36. Ning, Ruola; Cai, Weixing. Method and apparatus of spectral differential phase-contrast cone-beam CT and hybrid cone-beam CT. USP2016069364191.
  37. Master, Paul L.. Method and system for achieving individualized protected space in an operating system. USP2010027660984.
  38. Master, Paul L.. Method and system for creating and programming an adaptive computing engine. USP2011017865847.
  39. Plunkett, Robert T.; Heidari, Ghobad; Master, Paul L.. Method and system for managing hardware resources to implement system functions using an adaptive computing architecture. USP2015059037834.
  40. Plunkett, Robert T.; Heidari, Ghobad; Master, Paul L.. Method and system for managing hardware resources to implement system functions using an adaptive computing architecture. USP2016079396161.
  41. Plunkett, Robert T.; Heidari, Ghobad; Master, Paul L.. Method and system for managing hardware resources to implement system functions using an adaptive computing architecture. USP2013118589660.
  42. Plunkett, Robert T.; Heidari, Ghobad; Master, Paul L.. Method and system for managing hardware resources to implement system functions using an adaptive computing architecture. USP2010077752419.
  43. Scheuermann, W. James. Method and system for reconfigurable channel coding. USP2014078767804.
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  47. Master,Paul L.; Hogenauer,Eugene; Wu,Bicheng William; Chuang,Dan MingLun; Freeman Benson,Bjorn. Method, system and program for developing and scheduling adaptive integrated circuity and corresponding control or configuration information. USP2009017478031.
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  49. Knapp,Kenneth E.; Barr,Ronald A.; Wang,Lien Chang; Law,Benjamin P.; Spallas,James. Methods for fabricating redeposition free thin film CPP read sensors. USP2006097111382.
  50. Master, Paul L.. Profiling of software and circuit designs utilizing data operation analyses. USP2012098276135.
  51. Choi,Peter. Radiology device. USP2009037508914.
  52. Master,Paul L.; Watson,John. Storage and delivery of device features. USP2009027493375.
  53. Knapp, Kenneth E.; Barr, Ronald A.; Wang, Lien-Chang; Law, Benjamin P.; Spallas, James. Structure and method for redeposition free thin film CPP read sensor fabrication. USP2004126833979.
  54. Master, Paul L.; Watson, John. System for adapting device standards after manufacture. USP2009107602740.
  55. Master, Paul L.; Watson, John. System for authorizing functionality in adaptable hardware devices. USP201109E042743.
  56. Katragadda, Ramana; Spoltore, Paul; Howard, Ric. Task definition for specifying resource requirements. USP2012018108656.

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