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, 2005
Filed:
Apr. 14, 2004
Hideki Sawaguchi, Kokubunji, JP;
Yasutaka Nishida, Kodaira, JP;
Hisashi Takano, Kodaira, JP;
Toru Matsushita, Kokubunji, JP;
Hideki Sawaguchi, Kokubunji, JP;
Yasutaka Nishida, Kodaira, JP;
Hisashi Takano, Kodaira, JP;
Toru Matsushita, Kokubunji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A magnetic recording/reproducing apparatus includes a partial-response equalization circuit having frequency characteristic of cutting off low-frequency signal components inclusive of DC components; and a maximum-likelihood decoder, in which a reproduced signal outputted from the reproducing head is processed by the partial-response equalization circuit and then inputted into the maximum-likelihood decoder to be data-reproduced, thereby reducing a noise and distortion on the reproduced signal and reducing a data detection error rate.