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. 17, 2023
Filed:
Nov. 06, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Tsuyoshi Mima, Kashiwa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an information processing apparatus, a second central processing unit (CICU) uses an alteration detection program stored in a second memory to perform alteration detection on a program to be executed at a time of activation of a first CPU stored in a first memory. In a case where no alteration is detected in the program to be executed at the time of activation, the second CPU activates the first CPU using the program to be executed at the time of activation, and uses the activated first CPU to switch a program to be executed by the second CPU from the alteration detection program stored in the second memory to another processing program stored in the first memory.