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.:

US 11115554 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 07, 2021

Filed:

Mar. 25, 2020
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Takashi Kanno, Kashiwa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/3206 (2019.01); H04N 1/00 (2006.01);
U.S. Cl.
CPC ...
H04N 1/00891 (2013.01); G06F 1/3206 (2013.01); H04N 1/00907 (2013.01);
Abstract

A power supply control device includes a switch to output a switch depression signal, which is in a first logic level during a period in which the switch is not depressed, and is in a second logic level during a period in which the switch is depressed, a first power supply to generate a first DC voltage based on AC power, which is supplied from an outside, and to apply the first DC voltage to a predetermined load, and a second power supply configured to generate a second DC voltage based on the AC power irrespective of a state of the switch, and a controller to operate on the second DC voltage, to switch an operation state of the first power supply when the switch depression signal has switched from a first logic level to a second logic level and remains at the second logic level.


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Kanno, Takashi. (2021). Power supply control device and image forming apparatus capable of detecting a failure of a main power switch (U.S. Patent No. 11115554). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11115554

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