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:
Jan. 24, 2023
Filed:
Sep. 09, 2021
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Electronic Devices & Storage Corporation, Tokyo, JP;
Shinnosuke Yamaoka, Fuchu Tokyo, JP;
Mikio Hashimoto, Bunkyo Tokyo, JP;
Atsushi Shimbo, Bunkyo Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION, Tokyo, JP;
Abstract
A control device of the present embodiment has a communication I/F, a built-in non-volatile memory, a controller, an external-serial-memory I/F, a security management module, and an access controller. The communication I/F enables communication with outside. The built-in non-volatile memory has a first storage region, which stores an initialization program which carries out initialization operation, and a second storage region, which stores currently used firmware which is executed after the initialization operation and acquires firmware for update via the communication I/F. The controller executes the initialization program and the currently used firmware. The external-serial-memory I/F communicably connects the device of its own to an external non-volatile memory via a serial bus. The security-mode management module fixes an access control setting of the built-in non-volatile memory and the external non-volatile memory. The access controller outputs a level signal different from the serial bus.