The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 18, 1979
Filed:
May. 12, 1977
Yoshimasa Miura, Yokohama, JP;
Fujitsu Limited, , JP;
Abstract
A magnetic head in which two magnetoresistive elements are disposed in parallel to patterns recorded on a magnetic recording medium and spaced apart from each other by a distance shorter than a minimum interval of the recorded patterns, the magnetoresistive elements being each disposed between adjacent ones of magnetic shields through an insulator. A magnetic recorded data readout device employs the magnetic head and generates an output proportional to a composite difference resistance obtained by differentially combining resistance variations of the two magnetoresistive elements. A device is provided for detecting the position of magnetization transition of the recorded pattern and the direction of relative movement of the magnetic head to the magnetic recording medium from the zero cross point, and the direction of inclination of the waveform of the output generated by the magnetic recorded data readout device.