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:
Sep. 13, 2005
Filed:
Feb. 07, 2003
Applicants:
Toshiyuki Honda, Kyotanabe, JP;
Keisuke Sakai, Takatsuki, JP;
Inventors:
Toshiyuki Honda, Kyotanabe, JP;
Keisuke Sakai, Takatsuki, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C016/04 ;
U.S. Cl.
CPC ...
Abstract
A memory card () is comprised of: a flash memory () that includes a plurality of physical blocks () made up of a plurality of pages for storing data and a page register () that holds data to be written to a page; and a controller () that specifies and erases an invalid physical block with reference to a valid block table () indicating whether valid data is stored in each of the physical blocks (), when data is written, and that transfers, at the same time, the data to be written to the page register () while carrying out said erasure.