Magnetic transducer head

Details Magnetic transducer head Magnetic transducer head

G - Physics

11

B

352/29.4

G11B 5/39 (2006.01)

Patent

CA 1129544

ABSTRACT OF THE DISCLOSURE A magnetic transducer head having first and second mag- neto-resistance effect elements, each of which is made of a thin film having the magneto-resistance effect and which are arranged on approximately one line, a current source for flowing currents through the first and second magneto-resistance effect elements, and a bias source for applying bias magnetic fields to the first and second magneto-resistance effect elements. In this case, the bias magnetic field is selected from bias magnetic fields which have the direction of about Image , where n is an integer, with respect to the currents flowing through the first and second magneto-resistance effect elements, and the current source and the bias source are so connected that when a uniform signal magnetic field is applied to the first and second magneto-resistance effect elements, the resistances thereof are varied in the opposite directions with respect to each other and the outputs from the first and second magneto-resistance effect elements are derived differentially. -1-

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