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. 06, 2015
Filed:
Sep. 04, 2012
Koji Shimizu, Tokyo, JP;
Koji Shimizu, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An information processing apparatus capable of reducing time taken to return to a standby state after turn-off of a power switch in a power saving state. A power supply supplies power to a CPU and a RAM in a standby state, supplies power to the RAM without supplying power to the CPU in a second waiting state caused by turning off the power switch, and supplies power to the RAM without supplying power to the CPU in the power saving state caused without having the power switch turned off when a shift-to-power saving state requirement defined in advance is satisfied. A power supply controller causes the apparatus to shift from the second waiting state to the standby state using a standby memory image. The CPU writes the standby memory image in the RAM for storage in the power saving state.