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. 08, 2009
Filed:
Nov. 28, 2006
Doo-sub Lee, Suwon-si, KR;
Doo-Sub Lee, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A flash memory device includes: a memory cell array including pluralities of blocks; a block status storage unit including pluralities of latch cells arranged in rows and columns to store block status information signals corresponding to each of the blocks and providing the block status information signals in response to each of the write and read addresses; and a controller regulating an access to the memory cell array in response to the block status information signals. The block status storage unit provides information about whether a read address input during a read-while-write operation or suspend read operation is valid, and offers information about whether a current block is a write block or a write protection block.