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.

Date of Patent:
Aug. 15, 2000

Filed:

Jan. 30, 1997
Applicant:
Inventors:

Kiichiro Kasai, Kawasaki, JP;

Toshiki Kimura, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 46 ; 360 25 ;
Abstract

A magnetic disk reproducing apparatus for reproducing data recorded at an arbitrary position on a rotating disk by a head includes a level detecting unit for detecting a level of a DC component of a reproduced signal outputted from the head; a delaying unit for delaying the reproduced signal by a predetermined value; and a correcting unit for correcting the level of the DC component of the reproduced signal outputted from the delaying unit when the level of the DC component detected by the level detecting unit becomes larger than a predetermined threshold level. Preferably, a control method of a magnetic disk reproducing apparatus having such a construction includes the steps of detecting a level of a DC component of a reproduced signal outputted from the head; delaying the reproduced signal by a predetermined value; and correcting the level of the DC component of the delayed reproduced signal when the level of the DC component so detected becomes larger than a predetermined threshold level.


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