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:
Jun. 28, 1994
Filed:
Sep. 30, 1992
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A magnetic recording/reproducing apparatus includes a write head for recording a signal on a magnetic recording medium, a recording amplifier for supplying a recording current corresponding to the signal to the write head, a read head for reproducing the signal recorded on the magnetic recording medium, a reproducing amplifier for generating a reproduced current corresponding to the signal, an equalizer for correcting a waveform of a reproduced signal reproduced by the read head, a distortion detector for detecting distortion of signal reproduced by the read head, thereby obtaining a distortion evaluation value, and a recording current adjusting section for adjusting a magnitude of the recording current in a direction to decrease the distortion (i.e., in a direction to decrease the recording current) on the basis of a detection output obtained by the distortion detector. An optimum recording current is always supplied to the write head in accordance with the degree of wear of the write head. The degree of wear of the head is detected upon request, and head replacement is prompted.