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:
May. 05, 2009
Filed:
Sep. 08, 2005
Kenichi Satori, Tokyo, JP;
Kenichi Nakanishi, Tokyo, JP;
Hideaki Bando, Tokyo, JP;
Takahiro Fukushige, Tokyo, JP;
Kenichi Satori, Tokyo, JP;
Kenichi Nakanishi, Tokyo, JP;
Hideaki Bando, Tokyo, JP;
Takahiro Fukushige, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention has been made to realize a storage device capable of normally reading out data from the erase processing applied area. In a semiconductor storage devicewhen data read processing is performed for the erase-processing applied area in a memory sectionto read out erase-state actual data Ddr and erase-state parity data Ddp each containing only '1s', the erase-state actual data Ddr and erase-state parity data Ddp are inverted by a third data inverting circuitto make all the values thereof '0', followed by execution of the error detection processing. With the above configuration, it is possible to prevent an error from being detected in the error detection processing.