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:
Jun. 08, 2021
Filed:
Sep. 19, 2019
Tdk Corporation, Tokyo, JP;
Naoki Mukaida, Tokyo, JP;
Kenichi Takubo, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
A memory controller controls access to a flash memory including a plurality of physical blocks, each of which includes a plurality of pages, based on a command assigned from a host system. The memory controller allocates a physical block within the flash memory in a prescribed search range as a prescribed physical block where management information is written, writes the management information necessary for accessing the flash memory to the prescribed physical block, and operates to search for the prescribed physical block when second firmware is read from the flash memory. The writing information, including the management information, is written to the prescribed physical block in a same format regardless of a type of flash memory. Information written to pages is sequentially read at prescribed page intervals in the prescribed search range in searching for the prescribed physical block.