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:
Sep. 28, 2010
Filed:
Apr. 02, 2007
Kento Inai, Tokyo, JP;
Kento Inai, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention realizes lower power consumption of an entire system in a case in which a battery operated electronic device such as an image pickup apparatus is used as a USB host machine. When a battery powered electronic device is connected via a cable to an external device that receives a supply of power from a host machine, which is the electronic device, the present invention provides a function to switch the external device to a low power consumption state under a predetermined condition, and a function to allow the external device to recover to an ordinary state. Also, a function is provided to check whether or not the low power consumption state of the external device satisfies the predetermined condition.