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:
Jul. 18, 2006
Filed:
Feb. 24, 2000
Takayuki Sugawara, Fukushima-ken, JP;
Hiroki Hirashima, Fukushima-ken, JP;
Isao Asano, Fukushima-ken, JP;
Kyoichi Shirane, Kanagawa-ken, JP;
Takayuki Sugawara, Fukushima-ken, JP;
Hiroki Hirashima, Fukushima-ken, JP;
Isao Asano, Fukushima-ken, JP;
Kyoichi Shirane, Kanagawa-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A disk device for performing error-correction processing is loaded with a high-reliability disk to which a C1 code as a low-level error-correction code (ECC) is added for every sector, and a C2 code as a high-level ECC is added for every plurality of sectors. A host computer includes a device driver corresponding to the high-reliability disk. When data written to the high-reliability disk is read, low-level error-correction is performed based on the C1 code in units of one block corresponding to one sector, and the corrected data is notified to the host computer. Simultaneously, the C2 code along with the data for a plurality of blocks is loaded, and high-level error correction based on the C2 code is thereby performed.