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. 22, 2019
Filed:
Sep. 26, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Akitomo Fukui, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image processing apparatus is provided with a main controller unit that comprehensively controls the image processing apparatus, and a microcomputer that controls a load. During a period in which the image processing apparatus transitions from a first power mode to a second power mode having lower power consumption than the first power mode, the main controller unit prohibits acceptance of an interrupt signal, and cancels the prohibition of interrupts when the transition to the second power mode completes. Meanwhile, when an interrupt signal is generated from the load during the transition period, the microcomputer repeatedly notifies the interrupt signal as a pulse signal to the main controller unit, and notifies by changing the pulse signal to a level signal when prohibition of interrupts is cancelled.