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:
Mar. 28, 2000
Filed:
Sep. 23, 1997
Takehiko Tsuboi, Kawasaki, JP;
Koji Ikenoya, Kawasaki, JP;
Tomoo Furukawa, Kawasaki, JP;
Toshihiko Matsuda, Higashine, JP;
Koji Ishii, Higashine, JP;
Hiroyuki Kobayashi, Higashine, JP;
Yukio Abe, Higashine, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A device for recording and reproducing data on a recording media includes an error detecting unit for detecting a defective sector by reading the data from the media, a data copying unit for copying the data of the defective sector to at least one temporary replacing sector, a test unit for testing whether the defective sector has a media defect, and a replacement unit for replacing the defective sector with a spare sector by copying the data of the at least one temporary replacing sector to the spare sector when the defective sector has the media defect.