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:
Apr. 08, 2025
Filed:
Dec. 28, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Yasuhiro Kozuka, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An information processing apparatus that can perform error notification with ease and at a low cost in a case where falsification of an activation program is detected. The information processing apparatus has a main CPU for executing various programs, a sub CPU for verifying falsification of the activation program of the main CPU and perform recovery processing for the falsification, a FLASH Memory for storing a boot code of the activation program, a hardware sequencer for selectively switching one of the main CPU and the sub CPU so as to be capable of accessing the FLASH Memory, and a LED having three types of notification patterns. The hardware sequencer causes notification of the LED to change one of the three types of notification patterns according to both states of a falsification detection determination signal and an UNDER_RECOVERY signal from the sub CPU.