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:
Feb. 15, 2022

Filed:

Sep. 03, 2019
Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Naoki Mukaida, Tokyo, JP;

Kenichi Takubo, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/02 (2006.01); G06F 9/4401 (2018.01); G06F 12/06 (2006.01); G06F 11/20 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0246 (2013.01); G06F 9/4403 (2013.01); G06F 11/201 (2013.01); G06F 12/0638 (2013.01);
Abstract

A memory controller for preventing the storage area of a flash memory being reduced is provided. The memory controller controlling access to a flash memory based on a command provided from a host system, the memory controller includes: a processor, a RAM (random access memory), and a mask ROM (read only memory) in which a first firmware is written, wherein the memory controller is configured to: perform a search for a second firmware written in the flash memory based on the first firmware at a start-up time; and write a third firmware provided from the host system in the RAM when the second firmware is not found through the search and perform an initialization based on the third firmware written in the RAM.


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