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. 18, 2013
Filed:
Jun. 10, 2010
Toshihiko Sakai, Osaka, JP;
Masaki Yamamoto, Osaka, JP;
Yasuhiro Harada, Osaka, JP;
Go Mori, Osaka, JP;
Hideharu Tajima, Osaka, JP;
Yoshiteru Murakami, Osaka, JP;
Toshihiko Sakai, Osaka, JP;
Masaki Yamamoto, Osaka, JP;
Yasuhiro Harada, Osaka, JP;
Go Mori, Osaka, JP;
Hideharu Tajima, Osaka, JP;
Yoshiteru Murakami, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A magnetic recording apparatus includes: a magnetic recording medium having a recording surface on which a plurality of magnetic recording cells magnetically isolated from each other are arranged; a magnetic writing element recording information to the magnetic recording cells under a condition in accordance with setting information; a magnetic reading element reproducing information recorded in the magnetic recording cells; a memory storing the setting information for writing; and a processor for executing a program code. The program code includes a test module, responsive to a test write start signal, for repeating writing and reading test information by the magnetic writing and reading elements and calculating a quality index value representing quality of writing of the reproduced test information with the setting information changed, and a write module for selecting setting information with which the quality index value satisfies a predetermined condition, and writing the selected information in the memory.