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:
Jun. 24, 2003

Filed:

Feb. 26, 2002
Applicant:
Inventors:

Seisuke Hirosawa, Kodaira, JP;

Masaki Shirai, Sayama, JP;

Takeshi Suzuki, Inagi, JP;

Katsumi Ouchi, Higashimurayama, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 1/606 ; G11C 1/604 ;
U.S. Cl.
CPC ...
G11C 1/606 ; G11C 1/604 ;
Abstract

A nonvolatile storage system includes a plurality of nonvolatile memories and a control unit. When having detected a write-in error that occurred at an operation-subject nonvolatile memory, the control unit can set inter-chip alternate information indicating that a storage region related to the write-in error has been replaced by a storage region of any other nonvolatile memory of the plurality of nonvolatile memories to the nonvolatile memory of the storage region related to this error, so that when having received the inter-chip alternate information from the operation-subject nonvolatile memory, the control unit can change the operation subject from the current operation-subject nonvolatile memory to any other nonvolatile memory indicated by this inter-chip alternate information. It is thus possible to rescue a write-in error which occurred at one nonvolatile memory by replacing it with any other chip.


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