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Magnetic transducer head utilizing magnetoresistance effect

  • US 4,703,378 A
  • Filed: 02/26/1985
  • Issued: 10/27/1987
  • Est. Priority Date: 03/01/1984
  • Status: Expired due to Term
First Claim
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1. A magnetic transducer head utilizing magnetoresistance effect, comprising:

  • a magnetoresistance effect sensing element means for sensing a signal magnetic field on a travelling magnetic recording medium;

    means for applying a high frequency magnetic field to said sensing element means;

    means for obtaining an output from said sensing element means;

    means for rectifying said output to form a rectified signal; and

    low pass filter means supplied with said rectified signal for deriving an output corresponding to said signal magnetic field.

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