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:
Aug. 22, 1995
Filed:
Dec. 14, 1993
Takeshi Terazawa, Amagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A magnetic reproduction circuit is which includes: a Hilbert transform filter and a delay element each adapted to receive a signal reproduced from a magnetic recording medium; a variable amplifier connected to an output terminal of at least one of the Hilbert transform filter and the delay element; an adder for adding outputs of the Hilbert transform filter and the delay element wherein the outputs are fed to the adder with or without passing through the variable amplifier for varing their amplitudes; a detector for detecting a magnetic transition point of the magnetic recording medium; and a magnetization ratio detector for finding a ratio of a magnetization of the magnetic recording medium in the moving direction to a magnetization of the magnetic recording medium in a direction perpendicular the to moving direction, wherein an amplification factor of the variable amplifier is varied using the magnetization ratio found by the magnetization detector as a parameter.