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:
Oct. 12, 2021
Filed:
Jan. 23, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Akihiro Matsumoto, Toride, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An information processing apparatus comprising a first controller, a second controller provided between the first controller and a storage device, and a main controller that sets a power saving state of the first controller, the second controller and the storage device. The first controller transitions to the power saving state in response to a transition request from the main controller, the second controller transitions to the power saving state in response to the power saving state to which the first controller has transitioned, and the first controller starts restoration processing from the power saving state in response to an interrupt from the main controller and determines, based on whether the second controller is performing power control on the storage device, whether to execute preprocessing which is accompanied by access to the storage device.