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:
Jan. 08, 2008

Filed:

Sep. 20, 2006
Applicants:

Tomoo Utsumi, Kawasaki, JP;

Yasuto Aramaki, Kawasaki, JP;

Hiroyuki Chiba, Kawasaki, JP;

Nobuaki Yoshitake, Kawasaki, JP;

Inventors:

Tomoo Utsumi, Kawasaki, JP;

Yasuto Aramaki, Kawasaki, JP;

Hiroyuki Chiba, Kawasaki, JP;

Nobuaki Yoshitake, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 (2006.01);
U.S. Cl.
CPC ...
Abstract

A data reading unit reads inner offset data from an offset reading in an inner direction toward a center of a storage medium and outer offset data from an offset reading in an outer direction toward a circumference of the storage medium. A data comparing unit compares the inner offset data and the outer offset data read by the data reading unit. A data-output control unit that outputs the read-data when a result of comparison by the data comparing unit indicates that the inner offset data matches the outer offset data.


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